Crack4sure Logo
3 Months Free Update
3 Months Free Update
3 Months Free Update
A company has a public application. The application uses an Application Load Balancer (ALB) that has a target group of Amazon EC2 instances.
The company wants to protect the application from security issues in web requests. The traffic to the application must have end-to-end encryption.
Which solution will meet these requirements?
A network engineer needs to improve the network security of an existing AWS environment by adding an AWS Network Firewall firewall to control internet-bound traffic. The AWS environment consists of five VPCs. Each VPC has an internet gateway. NAT gateways, public Application Load Balancers (ALBs), and Amazon EC2 instances. The EC2 instances are deployed in private subnets. The architecture is deployed across two Availability Zones.
The network engineer must be able to configure rules for the public IP addresses in the environment, regardless of the direction of traffic. The network engineer must add the firewall by implementing a solution that minimizes changes to the existing production environment. The solution also must ensure high availability.
Which combination of steps should the network engineer take to meet these requirements? (Select TWO.)
A company has deployed a critical application on a fleet of Amazon EC2 instances behind an Application Load Balancer. The application must always be reachable on port 443 from the public internet. The application recently had an outage that resulted from an incorrect change to the EC2 security group.
A network engineer needs to automate a way to verify the network connectivity between the public internet and the EC2 instances whenever a change is made to the security group. The solution also must notify the network engineer when the change affects the connection.
Which solution will meet these requirements?
A company has a highly available application that is hosted in multiple VPCs and in two on-premises data centers. All the VPCs reside in the same AWS Region. All the VPCs require access to each other and to the on-premises data centers for the transfer of files that are multiple gigabytes in size.
A network engineer is designing an AWS Direct Connect solution to connect the on-premises data centers to each VPC.
Which architecture will meet the company's requirements with the LEAST operational overhead?
A company has several production applications across different accounts in the AWS Cloud. The company operates from the us-east-1 Region only. Only certain partner companies can access the applications. The applications are running on Amazon EC2 instances that are in an Auto Scaling group behind an Application Load Balancer (ALB). The EC2 instances are in private subnets and allow traffic only from the ALB. The ALB is in a public subnet and allows inbound traffic only from partner network IP address ranges over port 80.
When the company adds a new partner, the company must allow the IP address range of the partner network in the security group that is associated with the ALB in each account. A network engineer must implement a solution to centrally manage the partner network IP address ranges.
Which solution will meet these requirements in the MOST operationally efficient manner?
A company has developed a web service for language translation. The web service's application runs on a fleet of Amazon EC2 instances that are in an Auto Scaling group. The instances run behind an Application Load Balancer (ALB) and are deployed in a private subnet. The web service can process requests that contain hundreds of megabytes of data.
The company needs to give some customers the ability to access the web service. Each customer has its own AWS account. The company must make the web service accessible to approved customers without making the web service accessible to all customers.
Which combination of steps will meet these requirements with the LEAST operational overhead? (Choose two.)
A media company is implementing a news website for a global audience. The website uses Amazon CloudFront as its content delivery network. The backend runs on Amazon EC2 Windows instances behind an Application Load Balancer (ALB). The instances are part of an Auto Scaling group. The company's customers access the website by using service example com as the CloudFront custom domain name. The CloudFront origin points to an ALB that uses service-alb.example.com as the domain name.
The company’s security policy requires the traffic to be encrypted in transit at all times between the users and the backend.
Which combination of changes must the company make to meet this security requirement? (Choose three.)
A company has deployed a web application on AWS. The web application uses an Application Load Balancer (ALB) across multiple Availability Zones. The targets of the ALB are AWS Lambda functions. The web application also uses Amazon CloudWatch metrics for monitoring.
Users report that parts of the web application are not loading properly. A network engineer needs to troubleshoot the problem. The network engineer enables access logging for the ALB.
What should the network engineer do next to determine which errors the ALB is receiving?
A company is deploying an application. The application is implemented in a series of containers in an Amazon Elastic Container Service (Amazon ECS) cluster. The company will use the Fargate launch type for its tasks. The containers will run workloads that require connectivity initiated over an SSL connection. Traffic must be able to flow to the application from other AWS accounts over private connectivity. The application must scale in a manageable way as more consumers use the application.
Which solution will meet these requirements?
A network engineer is designing a hybrid networking environment that will connect a company's corporate network to the company's AWS environment. The AWS environment consists of 30 VPCs in 3 AWS Regions.
The network engineer needs to implement a solution to centrally filter traffic by using a firewall that the company's security team has approved. The solution must give all the VPCs the ability to connect to each other. Connectivity between AWS and the corporate network must meet a minimum bandwidth requirement of 2 Gbps.
Which solution will meet these requirements?
A company's existing AWS environment contains public application servers that run on Amazon EC2 instances. The application servers run in a VPC subnet. Each server is associated with an Elastic IP address.
The company has a new requirement for firewall inspection of all traffic from the internet before the traffic reaches any EC2 instances. A security engineer has deployed and configured a Gateway Load Balancer (GLB) in a standalone VPC with a fleet of third-party firewalls.
How should a network engineer update the environment to ensure that the traffic travels across the fleet of firewalls?
A company is deploying a new stateless web application on AWS. The web application will run on Amazon EC2 instances in private subnets behind an Application Load Balancer. The EC2 instances are in an Auto Scaling group. The web application has a stateful management application for administration that will run on EC2 instances that are in a separate Auto Scaling group.
The company wants to access the management application by using the same URL as the web application, with a path prefix of /management. The protocol, hostname, and port number must be the same for the web application and the management application. Access to the management application must be restricted to the company's on-premises IP address space. An SSL/TLS certificate from AWS Certificate Manager (ACM) will protect the web application.
Which combination of steps should a network engineer take to meet these requirements? (Select TWO.)
A company is establishing hybrid cloud connectivity from an on-premises environment to AWS in the us-east-1 Region. The company is using a 10 Gbps AWS Direct Connect dedicated connection. The company has two accounts in AWS. Account A has transit gateways in four AWS Regions. Account ? has transit gateways in three Regions. The company does not plan to expand.
To meet security requirements the company's accounts must have separate cloud infrastructure.
Which solution will meet these requirements MOST cost-effectively?
A company is building its website on AWS in a single VPC. The VPC has public subnets and private subnets in two Availability Zones. The website has static content such as images. The company is using Amazon S3 to store the content.
The company has deployed a fleet of Amazon EC2 instances as web servers in a private subnet. The EC2 instances are in an Auto Scaling group behind an Application Load Balancer. The EC2 instances will serve traffic, and they must pull content from an S3 bucket to render the webpages. The company is using AWS Direct Connect with a public VIF for on-premises connectivity to the S3 bucket.
A network engineer notices that traffic between the EC2 instances and Amazon S3 is routing through a NAT gateway. As traffic increases, the company's costs are increasing. The network engineer needs to change the connectivity to reduce the NAT gateway costs that result from the traffic between the EC2 instances and Amazon S3.
Which solution will meet these requirements?
A company has a global network and is using transit gateways to connect AWS Regions together. The company finds that two Amazon EC2 instances in different Regions are unable to communicate with each other. A network engineer needs to troubleshoot this connectivity issue.
What should the network engineer do to meet this requirement?
A company's application team is unable to launch new resources into its VPC. A network engineer discovers that the VPC has run out of usable IP addresses. The VPC CIDR block is 172.16.0.0/16.
Which additional CIDR block can the network engineer attach to the VPC?
A company's development team has created a new product recommendation web service. The web service is hosted in a VPC with a CIDR block of 192.168.224.0/19. The company has deployed the web service on Amazon EC2 instances and has configured an Auto Scaling group as the target of a Network Load Balancer (NLB).
The company wants to perform testing to determine whether users who receive product recommendations spend more money than users who do not receive product recommendations. The company has a big sales event in 5 days and needs to integrate its existing production environment with the recommendation engine by then. The existing production environment is hosted in a VPC with a CIDR block of 192.168.128 0/17.
A network engineer must integrate the systems by designing a solution that results in the least possible disruption to the existing environments.
Which solution will meet these requirements?
AnyCompany deploys and manages networking resources in its AWS network account, named Account-A. AnyCompany acquires Example Corp, which has an application that runs behind an Application Load Balancer (ALB) in Example Corp's AWS account, named Account-B.
Example Corp needs to use AWS Global Accelerator to create an accelerator to publish the application to users. AnyCompany's networking team will manage the accelerator.
Which solution will meet these requirements with the LEAST management overhead?
A global film production company uses the AWS Cloud to encode and store its videocontent before distribution. The company's three global offices are connected to the us-east-1 Region through AWS Site-to-Site VPN links that terminate on a transit gateway with BGP routing activated.
The company recently started to produce content at a higher resolution to support 8K streaming. The size of the content files has increased to three times the size of the content files from the previous format. Uploads of files to Amazon EC2 instances are taking 10 times longer than they did with the previous format.
Which actions should a network engineer recommend to reduce the upload times? (Choose two.)
A company's AWS environment has two VPCs. VPC A has a CIDR block of 192.168.0.0/16. VPC B has a CIDR block of 10.0.0.0/16. Each VPC is deployed in a separate AWS Region. The company has remote users who work outside the company's offices. These users need to connect to an application that is running in the VPCs.
Traffic to and from the VPCs over the internet must be encrypted. A network engineer must set up connectivity between the remote users and the VPCs.
Which combination of steps should the network engineer take to meet these requirements with the LEAST management overhead? (Choose three.)
A global company is designing a hybrid architecture to privately access AWS resources in the us-west-2 Region. The company's existing architecture includes a VPC that uses RFC 1918 IP address space. The VPC is connected to an on-premises data center over AWS Direct Connect Amazon Route 53 provides name resolution within the VPC. Locally managed DNS servers in the data center provide DNS services to the on-premises hosts.
The company has applications in the data center that need to download objects from an Amazon S3 bucket in us-west-2.
Which solution can the company use to access Amazon S3 without using the public IP address space?
A company securely connects resources that are in its VPC to a software as a service (SaaS) solution from a SaaS provider. The SaaS solution is hosted in the AWS Cloud and is powered by AWS PrivateLink. The company uses a PrivateLink endpoint to access the SaaS solution behind the SaaS provider's Network Load Balancer (NLB).
The company recently added a new Availability Zone and new subnets to its VPC. A network engineer is unable to deploy a new interface VPC endpoint for the SaaS solution in the new Availability Zone.
What is the cause of this problem?
A company has deployed an application in which the front end of the application communicates with the backend instances through a Network Load Balancer (NLB) in the same VPC. The application is highly available across two Availability Zones. The company wants to limit the amount of traffic that travels across the Availability Zones. Traffic from the front end of the application must stay in the same Availability Zone unless there is no healthy target in that Availability Zone behind the NLB. If there is no healthy target in the same Availability Zone, traffic must be sent to the other Availability Zone.
Which solution will meet these requirements?
A company is planning to host a secure web application across multiple Amazon EC2 instances. The application will have an associated DNS domain in an Amazon Route 53 hosted zone.
The company wants to protect the domain from DNS poisoning attacks. The company also wants to allow web browsers to authenticate into the application by using a trusted third party.
Which combination of actions will meet these requirements?
A finance company runs multiple applications on Amazon EC2 instances in two VPCs that are within a single AWS Region. The company uses one VPC for stock trading applications. The company uses the second VPC for financial applications. Both VPCs are connected to a transit gateway that is configured as a multicast router.
In the stock trading VPC, an EC2 instance that has an IP address of 10.128.10.2 sends trading data over a multicast network to the 239.10.10.10 IP address on UDP Port 5102. The company recently launched two new EC2 instances in the financial application VPC. The new EC2 instances need to receive the multicast stock trading data from the EC2 instance that is in the stock trading VPC.
Which combination of steps should the company take to meet this requirement? (Choose three.)
A company is migrating an application from on premises to AWS. The company will host the application on Amazon EC2 instances that are deployed in a single VPC. During the migration period, DNS queries from the EC2 instances must be able to resolve names of on-premises servers. The migration is expected to take 3 months After the 3-month migration period, the resolution of on-premises servers will no longer be needed.
What should a network engineer do to meet these requirements with the LEAST amount of configuration?
A company has an application VPC and a networking VPC that are connected through VPC peering. The networking VPC contains a Network Load Balancer (NLB). The application VPC contains Amazon EC2 instances that run an application. The EC2 instances are part of a target group that is associated with the NLB in the networking VPC.
The company configures a third VPC and peers it to the networking VPC. The new VPC contains a new version of the existing application. The new version of the application runs on new EC2 instances in an application subnet. The new version of the application runs in a different Availability Zone than that original version of the application.
The company needs to establish connectivity between the NLB and the new version of the application.
Which combination of steps will meet this requirement? (Choose three.)
A network engineer needs to design the architecture for a high performance computing (HPC) workload. Amazon EC2 instances will require 10 Gbps flows and an aggregate throughput of up to 100 Gbps across many instances with low-latency communication.
Which architecture solution will optimize this workload?
A company is using AWS Cloud WAN with one edge location in the us-east-1 Region and one edge location in the us-west-1 Region. A shared services segment exists at both edge locations. Each shared services segment has a VPC attachment to each inspection VPC in each Region. The inspection VPCs inspect traffic from a WAN by using AWS Network Firewall.
The company creates a new segment for a new business unit (BU) in the us-east-1 edge location. The new BU has three VPCs that are attached to the new BU segment. To comply with regulations, the BU VPCs must not communicate with each other. All internet-bound traffic must be inspected in the inspection VPC.
The company updates VPC route tables so any traffic that is bound for internet goes to the AWS Cloud WAN core network.
The company plans to add more VPCs for the new BU in the future. All future VPCs must comply with regulations.
Which solution will meet these requirements in the MOST operationally efficient way? (Choose two.)
An online retail company is running a web application in the us-west-2 Region and serves consumers in the United States. The company plans to expand across several countries in Europe and wants to provide low latency for all its users.
The application needs to identify the users' IP addresses and provide localized content based on the users' geographic location. The application uses HTTP GET and POST methods for its functionality. The company also needs to develop a failover mechanism that works for GET and POST methods and is based on health checks. The failover must occur in less than 1 minute for all clients.
Which solution will meet these requirements?
A company operates in multiple AWS Regions. The company has deployed transit gateways in each Region. The company uses AWS Organizations to operate multiple AWS accounts in one organization.
The company needs to capture all VPC flow log data when a new VPC is created. The company needs to send flow logs to a specific Amazon S3 bucket.
Which solution will meet these requirements with the LEAST administrative effort?
A company needs to manage Amazon EC2 instances through command line interfaces for Linux hosts and Windows hosts. The EC2 instances are deployed in an environment in which there is no route to the internet. The company must implement role-based access control for management of the instances. The company has a standalone on-premises environment.
Which approach will meet these requirements with the LEAST maintenance overhead?
A company uses Amazon Route 53 to register a public domain, example.com, in an AWS account. A central services group manages the account. The company wants to create a subdomain, test.example.com, in another AWS account to offer name services for Amazon EC2 instances that are hosted in the account. The company does not want to migrate the parent domain to the subdomain account.
A network engineer creates a new Route 53 hosted zone for the subdomain in the second account.
Which combination of steps must the network engineer take to complete the task? (Choose two.)
A company wants to use an AWS Network Firewall firewall to secure its workloads in the cloud through network traffic inspection. The company must record complete metadata information, such as source/destination IP addresses and protocol type. The company must also record all network traffic flows and any DROP or ALERT actions that the firewall takes for traffic that the firewall processes. The Network Firewall endpoints are placed in the correct subnets, and the VPC route tables direct traffic to the Network Firewall endpoints on the path to and from the internet.
How should a network engineer configure the firewall to meet these requirements?
A company has many application VPCs that use AWS Site-to-Site VPN connections for connectivity to an on-premises location. The company's network team wants to gradually migrate to AWS Transit Gateway to provide VPC-to-VPC connectivity.
The network team sets up a transit gateway that uses equal-cost multi-path (ECMP) routing. The network team attaches two temporary VPCs to the transit gateway for testing. The test VPCs contain Amazon EC2 instances to confirm connectivity over the transit gateway between the on-premises location and the VPCs. The network team creates two new Site-to-Site VPN connections to the transit gateway.
During testing, the network team cannot reach the required bandwidth of 2.5 Gbps over the pair of new Site-to-Site VPN connections.
Which combination of steps should the network team take to improve bandwidth performance and minimize network congestion? (Select THREE.)
A company has a hybrid environment that connects an on-premises data center to the AWS Cloud. The hybrid environment uses a 10 Gbps AWS Direct Connect dedicated connection. The Direct Connect connection has multiple private VIFs that terminate in multiple VPCs.
To comply with regulations, the company must encrypt all WAN traffic, regardless of the underlying transport. The company needs to implement an encryption solution that will not affect the company's bandwidth capacity.
Which solution will meet these requirements?
A company has an AWS environment that includes multiple VPCs that are connected by a transit gateway. The company wants to use a certificate-based AWS Site-to-Site VPN connection to establish connectivity between an on-premises environment and the AWS environment. The company does not have a static public IP address for the on-premises environment.
Which combination of steps should the company take to establish VPN connectivity between the transit gateway and the on-premises environment? (Choose two.)
A government contractor is designing a multi-account environment with multiple VPCs for a customer. A network security policy requires all traffic between any two VPCs to be transparently inspected by a third-party appliance.
The customer wants a solution that features AWS Transit Gateway. The setup must be highly available across multiple Availability Zones, and the solution needs to support automated failover. Furthermore, asymmetric routing is not supported by the inspection appliances.
Which combination of steps is part of a solution that meets these requirements? (Choose two.)
A company is building an API-based application on AWS and is using a microservices architecture for the design. The company is using a multi-account AWS environment that includes a separate AWS account for each microservice development team. Each team hosts its microservice in its own VPC that contains Amazon EC2 instances behind a Network Load Balancer (NLB).
A network engineer needs to use Amazon API Gateway in a shared services account to create an HTTP API to expose these microservices to external applications. The network engineer must ensure that access to the microservices can occur only over a private network. Additionally, the company must be able to control which entities from its internal network can connect to the microservices. In the future, the company will create more microservices that the company must be able to integrate with the application.
What is the MOST secure solution that meets these requirements?
An international company wants to implement a multi-site hybrid infrastructure. The company wants to deploy its cloud computing resources on AWS in the us-east-1 Region and in the eu-west-2 Region, and in on-premises data centers in the United States (US) and in the United Kingdom (UK). The data centers are connected to each other by a private WAN connection. IP routing information is exchanged dynamically through BGP. The company wants to have two AWS Direct Connect connections, one each in the US and the UK.
The company expects to have 15 VPCs in each Region with CIDR blocks that do not overlap with each other or with CIDR blocks of the on-premises environment. The VPC CIDR blocks are planned so that the prefix aggregation can be performed both on a Regional level and across the entire AWS environment. The company will deploy a transit gateway in each Region to connect the VPCs. A network engineer plans to use a Direct Connect gateway in each Region. A transit VIF will attach the Direct Connect gateway in each Region to the transit gateway in that Region. The transit gateways will be peered with each other.
The network engineer wants to ensure that traffic follows the shortest geographical path from source to destination. Traffic between the on-premises data centers and AWS must travel across a local Direct Connect connection. Traffic between the US data center and eu-west-2 and traffic between the UK data center and us-east-1 must use the private WAN connection to reach the Direct Connect connection to the appropriate Region when the Direct Connect connection is available. The network must be resilient to failures in either the private WAN connection or with the Direct Connect connections. The network also must reroute traffic automatically in the event of any failure.
How should the network engineer configure the transit VIF associations on the Direct Connect gateways to meet these requirements?
A company's network engineer is designing an active-passive connection to AWS from two on-premises data centers. The company has set up AWS Direct Connect connections between the on-premises data centers and AWS. From each location, the company is using a transit VIF that connects to a Direct Connect gateway that is associated with a transit gateway.
The network engineer must ensure that traffic from AWS to the data centers is routed first to the primary data center. The traffic should be routed to the failover data center only in the case of an outage.
Which solution will meet these requirements?
A company is planning to use Amazon S3 to archive financial data. The data is currently stored in an on-premises data center. The company uses AWS Direct Connect with a Direct Connect gateway and a transit gateway to connect to the on-premises data center. The data cannot be transported over the public internet and must be encrypted in transit.
Which solution will meet these requirements?
A Network Engineer is provisioning a subnet for a load balancer that will sit in front of a fleet of application servers in a private subnet. There is limited IP space left in the VPC CIDR. The application has few users now but is expected to grow quickly to millions of users.
What design will use the LEAST amount of IP space, while allowing for this growth?
A marketing company is using hybrid infrastructure through AWS Direct Connect links and a software-defined wide area network (SD-WAN) overlay to connect its branch offices. The company connects multiple VPCs to a third-party SD-WAN appliance transit VPC within the same account by using AWS Site-to-Site VPNs.
The company is planning to connect more VPCs to the SD-WAN appliance transit VPC. However, the company faces challenges of scalability, route table limitations, and higher costs with the existing architecture. A network engineer must design a solution to resolve these issues and remove dependencies.
Which solution will meet these requirements with the LEAST amount of operational overhead?
A company is using a NAT gateway to allow internet connectivity for private subnets in a VPC in the us-west-2 Region. After a security audit, the company needs to remove the NAT gateway.
In the private subnets, the company has resources that use the unified Amazon CloudWatch agent. A network engineer must create a solution to ensure that the unified CloudWatch agent continues to work after the removal of the NAT gateway.
Which combination of steps should the network engineer take to meet these requirements? (Choose three.)
A network engineer needs to monitor internet metrics for an application that is in a VPC. The metrics include user experiences such as health events, latency, and traffic insights.
The network engineer sets up Amazon CloudWatch Internet Monitor for the application. The engineer wants to push the internet health events to a third-party target.
Which solution will meet these requirements with the LEAST implementation effort?
A company is using an Amazon CloudFront distribution that is configured with an Application Load Balancer (ALB) as an origin. A network engineer needs to implement a solution that requires
all inbound traffic to the ALB to come from CloudFront. The network engineer must implement the solution at the network layer rather than in the application.
Which solution will meet these requirements in the MOST operationally efficient way?
A company's VPC has Amazon EC2 instances that are communicating with AWS services over the public internet. The company needs to change the connectivity so that the communication
does not occur over the public intemet.
The company deploys AWS PrivateLink endpoints in the VPC. After the deployment of the PrivateLink endpoints, the EC2 instances can no longer communicate at all with the required AWS
services.
Which combination of steps should a network engineer take to restore communicationwith the AWS services? (Select TWO.)
A network engineer is designing hybrid connectivity with AWS Direct Connect and AWS Transit Gateway. A transit gateway is attached to a Direct Connect gateway and 19 VPCs across different AWS accounts. Two new VPCs are being attached to the transit gateway. The IP address administrator has assigned 10.0.32.0/21 to the first VPC and 10.0.40.0/21 to the second VPC. The prefix list has one CIDR block remaining before the prefix list reaches the quota for the maximum number of entries.
What should the network engineer do to advertise the routes from AWS to on premises to meet these requirements?
A company has its production VPC (VPC-A) in the eu-west-1 Region in Account 1. VPC-A is attached to a transit gateway (TGW-A) that is connected to an on-premises data center in Dublin, Ireland, by an AWS Direct Connect transit VIF that is configured for an AWS Direct Connect gateway. The company also has a staging VPC (VPC-B) that is attached to another transit gateway (TGW-B) in the eu-west-2 Region in Account 2.
A network engineer must implement connectivity between VPC-B and the on-premises data center in Dublin.
Which solutions will meet these requirements? (Choose two.)
A company has an order processing system that needs to keep credit card numbers encrypted. The company's customer-facing application runs as an Amazon Elastic Container Service (Amazon ECS) service behind an Application Load Balancer (ALB) in the us-west-2 Region. An Amazon CloudFront distribution is configured with the ALB as the origin. The company uses a third-party trusted certificate authority to provision its certificates.
The company is using HTTPS for encryption in transit. The company needs additional field-level encryption to keep sensitive data encrypted during processing so that only certain application components can decrypt the sensitive data.
Which combination of steps will meet these requirements? (Choose two.)
A company has stateful security appliances that are deployed to multiple Availability Zones in a centralized shared services VPC. The AWS environment includes a transit gateway that is attached to application VPCs and the shared services VPC. The application VPCs have workloads that are deployed in private subnets across multiple Availability Zones. The stateful appliances in the shared services VPC inspect all east-west (VPC-to-VPC) traffic.
Users report that inter-VPC traffic to different Availability Zones is dropping. A network engineer verified this claim by issuing Internet Control Message Protocol (ICMP) pings between workloads in different Availability Zones across the application VPCs. The network engineer has ruled out security groups, stateful device configurations, and network ACLs as the cause of the dropped traffic.
What is causing the traffic to drop?
A company is moving its record-keeping application to the AWS Cloud. All traffic between the company's on-premises data center and AWS must be encrypted at all times and at every transit device during the migration.
The application will reside across multiple Availability Zones in a single AWS Region. The application will use existing 10 Gbps AWS Direct Connect dedicated connections with a MACsec capable port. A network engineer must ensure that the Direct Connect connection is secured accordingly at every transit device.
The network engineer creates a Connection Key Name and Connectivity Association Key (CKN/CAK) pair for the MACsec secret key.
Which combination of additional steps should the network engineer take to meet the requirements? (Choose two.)
A network engineer needs to set up an Amazon EC2 Auto Scaling group to run a Linux-based network appliance in a highly available architecture. The network engineer is configuring the new launch template for the Auto Scaling group.
In addition to the primary network interface the network appliance requires a second network interface that will be used exclusively by the application to exchange traffic with hosts over the internet. The company has set up a Bring Your Own IP (BYOIP) pool that includes an Elastic IP address that should be used as the public IP address for the second network interface.
How can the network engineer implement the required architecture?
An ecommerce company is hosting a web application on Amazon EC2 instances to handle continuously changing customer demand. The EC2 instances are part of an Auto Scaling group. The company wants to implement a solution to distribute traffic from customers to the EC2 instances. The company must encrypt all traffic at all stages between the customers and the application servers. No decryption at intermediate points is allowed.
Which solution will meet these requirements?
A company wants to analyze TCP internet traffic. The traffic originates from Amazon EC2 instances in the company’s VPC. The EC2 instances initiate connections through a NAT gateway.
The company wants to capture data about the traffic including source and destination IP addresses ports, and the first 8 bytes of the TCP segments of the traffic. The company needs to collect, store, and analyze all the required data points.
Which solution will meet these requirements?
All IP addresses within a 10.0.0.0/16 VPC are fully utilized with application servers across two Availability Zones. The application servers need to send frequent UDP probes to a single central authentication server on the Internet to confirm that is running up-to-date packages. The network is designed for application servers to use a single NAT gateway for internal access. Testing reveals that a few of the servers are unable to communicate with the authentication server.
A company has a single VPC in the us-east-1 Region. The company is planning to set up a new VPC in the us-east-2 Region. The existing VPC has an AWS Site-to-Site VPN connection to the company's on-premises environment and uses a virtual private gateway.
A network engineer needs to implement a solution to establish connectivity between the existing VPC and the new VPC. The solution also must implement support for IPv6 for the new VPC. The company has new on-premises resources that need to connect to VPC resources by using IPv6 addresses.
Which solution will meet these requirements?
A company is developing an application in which IoT devices will report measurements to the AWS Cloud. The application will have millions of end users. The company observes that the IoT devices cannot support DNS resolution. The company needs to implement an Amazon EC2 Auto Scaling solution so that the IoT devices can connect to an application endpoint without using DNS.
Which solution will meet these requirements MOST cost-effectively?
An organization is replacing a tape backup system with a storage gateway. there is currently no connectivity to AWS. Initial testing is needed.
What connection option should the organization use to get up and running at minimal cost?
A bank built a new version of its banking application in AWS using containers that content to an on-premises database over VPN connection. This application version requires users to also update their client application. The bank plans to deprecate the earlier client version. However, the company wants to keep supporting earlier clients through their on-premises version of the application to serve a small portion of the customers who haven’t yet upgraded.
What design will allow the company to serve both newer and earlier clients in the MOST efficient way?
A company has a VPC that hosts Amazon EC2 instances in a private subnet. The EC2 Instances use a NAT gateway and an internet gateway for internet connectivity to retrieve data from specific internet websites. The company wants to use AWS Network Firewall to filter outbound traffic.
What should a network engineer do to meet these requirements?
A company is deploying a new application in the AWS Cloud. The company wants a highly available web server that will sit behind an Elastic Load Balancer. The load balancer will route requests to multiple target groups based on the URL in the request. All traffic must use HTTPS. TLS processing must be offloaded to the load balancer. The web server must know the user’s IP address so that the company can keep accurate logs for security purposes.
Which solution will meet these requirements?
A company has deployed an AWS Network Firewall firewall into a VPC. A network engineer needs to implement a solution to deliver Network Firewall flow logs to the company’s Amazon OpenSearch Service (Amazon Elasticsearch Service) cluster in the shortest possible time.
Which solution will meet these requirements?
A company’s network engineer builds and tests network designs for VPCs in a development account. The company needs to monitor the changes that are made to network resources and must ensure strict compliance with network security policies. The company also needs access to the historical configurations of network resources.
Which solution will meet these requirements?
A company has a 2 Gbps AWS Direct Connect hosted connection from the company's office to a VPC in the ap-southeast-2 Region. A network engineer adds a 5 Gbps Direct Connect hosted connection from a different Direct Connect location in the same Region. The hosted connections are connected to different routers from the office with an iBGP session running in between the routers.
The network engineer wants to ensure that the VPC uses the 5 Gbps hosted connection to route traffic to the office. Failover to the 2 Gbps hosted connection must occur when the 5 Gbps hosted connection is down.
Which solution will meet these requirements?
A team of infrastructure engineers wants to automate the deployment of Application Load Balancer (ALB) components by using the AWS Cloud Development Kit (AWS CDK). The CDK application must deploy an infrastructure stack that is reusable and consistent across multiple environments, AWS Regions, and AWS accounts.
The lead network architect on the project has already bootstrapped the target accounts. The lead network architect also has deployed core network components such as VPCs and Amazon Route 53 private hosted zones across the multiple environments and Regions. The infrastructure engineers must design the ALB components in the CDK application to use the existing core network components.
Which combination of steps will meet this requirement with the LEAST manual effort between environment deployments? (Choose two.)
A company uses AWS Site-to-Site VPN connections to encrypt traffic between the company's on-premises location and a single VPC. The Site-to-Site VPN connections use two 1 Gbps AWS Direct Connect connections with public VIFs. The company plans to add 15 additional VPCs in the same AWS Region.
The company must maintain the same level of encryption that the Site-to-Site VPN connections currently provide for each connection between the on-premises location and the new VPCs. The new connections must not use public IP addresses. The bandwidth of the Site-to-Site VPN connections will remain less than the current provisioned speed.
Which combination of steps will meet these requirements with LEAST operational overhead? (Choose three.)
A company is running its application servers on Amazon EC2 instances. The EC2 instances run in separate VPCs that are connected by a transit gateway. The EC2 instances launch in a private subnet with a route to the transit gateway for internal and external connectivity. The external connectivity is provided by a VPC with firewall devices that perform an inspection for packets that ingress and egress through an internet gateway.
A network engineer needs to help the company’s application team increase the payload size per packet delivery between the EC2 instances. All network connectivity must be through the transit gateway
What should the network engineer do to meet these requirements?
A company’s data center is connected to a single AWS Region by an AWS Direct Connect dedicated connection. The company has a single VPC in the Region. The company stores logs for all its applications locally in the data center.
The company must keep all application logs for 7 years. The company decides to copy all application logs to an Amazon S3 bucket.
Which solution will meet these requirements?
A network engineer is designing the DNS architecture for a new AWS environment. The environment must be able to resolve DNS names of endpoints on premises, and the on-premises systems must be able to resolve the names of AWS endpoints. The DNS architecture must give individual accounts the ability to manage subdomains.
The network engineer needs to create a single set of rules that will work across multiple accounts to control this behavior. In addition, the network engineer must use AWS native services whenever possible.
Which combination of steps should the network engineer take to meet these requirements? (Choose three.)
A logistics company has multiple VPCs in an AWS Region. The company uses a transit gateway to connect the VPCs. The company has several on-premises offices that connect to the transit gateway by using AWS Site-to-Site VPN connections over the internet. The company has configured one transit gateway VPN attachment for each office.
Route propagation is enabled on all route tables. Each Site-to-Site VPN connection uses two tunnels in an active-passive configuration. The company configured each office with appropriate static routes on both the Site-to-Site VPN connection and the office’s customer gateway.
The company wants to use both IPsec tunnels of every office to maximize the overall VPN connection bandwidth.
Which design changes are necessary to meet these requirements?
Your organization has a newly installed 1-Gbps AWS Direct Connect connection. You order the cross-connect from the Direct Connect location provider to the port on your router in the same facility. To enable the use of your first virtual interface, your router must be configured appropriately.
What are the minimum requirements for your router?
A company has two data centers that are interconnected with multiple redundant linksfrom different suppliers. The company uses IP addresses that are within the 172.16.0.0/16 CIDR block. The company is running iBGP between the two data centers by using a private Autonomous System Number (ASN)and IGP.
The company is moving toward a hybrid setup in which the company will initially use one VPC in the AWS Cloud. An AWS Direct Connect connection runs from the first data center to a Direct Connect gateway by using a private VIF On the connection, the company advertises a summarized route for the 172.16.0.0/16 network The company is planning to set up a second summarized route from the second data center to a different Direct Connect location.
The company needs to implement a solution to route traffic to and from AWS through the first Direct Connect connection. The solution must use the second Direct Connect connection for failover purposes only.
Which solution will meet these requirements?
A network engineer must develop an AWS CloudFormation template that can create a virtual private gateway, a customer gateway, a VPN connection, and static routes in a route table. During testing of the template, the network engineer notes that the CloudFormation template has encountered an error and is rolling back.
What should the network engineer do to resolve the error?
A network engineer is evaluating a network setup for a global retail company. The company has an AWS Direct Connect connection between its on-premises data center and the AWS Cloud. The company has AWS resources in the eu-west-2 Region. These resources consist of multiple VPCs that are attached to a transit gateway.
The company recently provisioned a few AWS resources in the eu-central-1. Region in a single VPC close to its users in this area. The network engineer must connect the resources in eu-central-1 with the on-premises data center and the resources in eu-west-2. The solution must minimize changes to the Direct Connect connection.
What should the network engineer do to meet these requirements?
A company has multiple firewalls and ISPs for its on-premises data center. The company has a single AWS Site-to-Site VPN connection from the company's on-premises data center to a transit gateway. A single ISP services the Site-to-Site VPN connection. Multiple VPCs are attached to the transit gateway.
A customer gateway that the Site-to-Site VPN connection uses fails. Connectivity is completely lost, but the company's network team does not receive a notification.
The network team needs to implement redundancy within a week in case a single customer gateway fails again. The team wants to use an Amazon CloudWatch alarm to send notifications to an Amazon Simple Notification Service (Amazon SNS) topic if any tunnel of the Site-to-Site VPN connection fails.
Which solution will meet these requirements MOST cost-effectively?
A company needs to manage Amazon EC2 instances through command line interfaces for Linux hosts and Windows hosts. The EC2 instances are deployed in an environment in which there is
no route to the internet. The company must implement role-based access control for management of the instances. The company has a standalone on-premises environment.
Which approach will meet these requirements with the LEAST maintenance overhead?
A company is building an internet-facing application that is hosted on an Amazon Elastic Kubernetes Service (Amazon EKS) cluster. The company is using the Amazon VPC Container Network Interface (CNI) plugin for Kubernetes for pod networking connectivity. The company needs to expose its application to the internet by using a Network Load Balancer (NLB). The pods that host the application must have visibility of the source IP address that is contained in the original packet that the NLB receives.
How should the network engineer configure the NLB and Amazon EKS settings to achieve these goals?
A banking company is successfully operating its public mobile banking stack on AWS. The mobile banking stack is deployed in a VPC that includes private subnets and public subnets. The company is using IPv4 networking and has not deployed or supported IPv6 in the environment. The company has decided to adopt a third-party service provider's API and must integrate the API with the existing environment. The service provider’s API requires the use of IPv6.
A network engineer must turn on IPv6 connectivity for the existing workload that is deployed in a private subnet. The company does not want to permit IPv6 traffic from the public internet and mandates that the company's servers must initiate all IPv6 connectivity. The network engineer turns on IPv6 in the VPC and in the private subnets.
Which solution will meet these requirements?
A company is planning to host external websites on AWS. The websites will include multiple tiers such as web servers, application logic services, and databases. The company wants to use AWS Network Firewall. AWS WAR and VPC security groups for network security.
The company must ensure that the Network Firewall firewalls are deployed appropriately within relevant VPCs. The company needs the ability to centrally manage policies that are deployed to Network Firewall and AWS WAF rules. The company also needs to allow application teams to manage their own security groups while ensuring that the security groups do not allow overly permissive access.
What is the MOST operationally efficient solution that meets these requirements?
A company's AWS infrastructure is spread across more than 50 accounts and across five AWS Regions. The company needs to manage its security posture with simplified administration and maintenance for all the AWS accounts. The company wants to use AWS Firewall Manager to manage the firewall rules and requirements.
The company creates an organization with all features enabled in AWS Organizations.
Which combination of steps should the company take next to meet the requirements? (Select THREE.)
TESTED 12 Sep 2025