Practice Free H12-224 HCNP-Routing & Switching (Fast Track) Exam Questions Answers With Explanation

OSPF uses the link state algorithm

Each router advertises local link state information by flooding LSAs

Each OSPF device collects LSAs sent by other routers All LSAs form the link state database (LSDB)

AII the routers in OSPF Area 0 have the same 13DML Based on the directed graph each router uses a SPF algorithm to compute the shortest path tree with itself as the root

The master in the VRRP group is selected based on priorities

The master sends gratuitous ARP packets and notifies the connected device or host of its virtual MAC address 'iSSi

if the master fails the new master is selected among backup devices based on priorities

The priority ranges from 1to 255 When the backup received VRRP Advertisement packets which the priority is 0 the backup discards the packets

All DR others establish neighbor relationships with DR and BDR only.

In a broadcast network, DR and BDR must be elected. A broadcast network without a

DR or BDR cannot operate normally.

DR others listen on the multicast address 224.0.0.5.

DR others listen on the network address 224.0.0.6.

Storage device

Network device

Server

Air conditioning system

IP spoofing attack

Smurf attack

ICMP redirection attack

SYN Flood attack

Automatic allocation

Dynamic allocation

Duplicated allocation

Manual allocation

Mirrored port

Local observing port

Remote mirroring port

Trunk port

IGMP snooping prevents multicast packets from being broadcast at Layer 3.

IGMP snooping is a multicast restraint mechanism that runs on layer 2 Ethernet switches to manage and control multicast groups.

IGMP snooping creates a multicast MAC address table by listening to IGMP packets sent from hosts.

IGMP snooping does not consume CPU resources of switch.

After a router receives a Network-Summary-LSA, this router runs a SPF algorithm.

Network-LSA describes link state information of broadcast and NBMA segment.

A virtual connection is a virtual link that belongs to the backbone area (Area 0).

Type 4 LSA describes how to reach an A5BR, including routing and topology information.

RSTP defines the edge port role. The edge port does not receive and process configuration BPDUs, and not participate in RSTP calculation

When the root port fails, the optimal alternate port will become the root port and the forwarding state.

In RSTP, when a port is elected as the designated port, it enters the discarding state.

Then the port immediately enters the forwarding state

In RSTP, when a port receives is bpdus form the upstream designated bridge , the port will compare the own stored is bpdu with the E. When the designated port fails, the optimal alternate port will become the root port and enter the forwarding state.

origin

Community

AS. Path

MED

If a high bandwidth of the link between two directly connected devices is required but the remote does not support LACP you

In static LACP mode a larger LACP priority of an interface indicates a higher priority of

the interface and a high probability of become

The interface that forwards data is called the active interface that does not forward data

is called the inactive interface fails.

When preemption is enabled and an active interface fails , the backup interface with a larger priority becomes the active interface after become the active interface.

A device with a higher router priority has a higher election priority

If two devices have the same muter priority the device with a larger router ID has a higher election priority

If the current DR fails the current BDR automatically becomes a new DR and a BDR will be elected again

When a muter with the highest router priority joins an OSPF network this router will become the new DR

10

5

25

20

Account soft-out reminder

Password updated reminder

Log protection reminder

Data backup reminder

If the edge port on the switch enabled with BPDU protection receives RST BPDU, the switch sets the edge port as a non-edge-port

The role of the designated port that is enabled with root protection cannot be changed.

When the designated port enabled with root protection receives optimal RST BPDUs, the port enters the Discarding state and does

RST BPDUs within a certain period of time, the port will automatically restore to the Forwarding state.

After TC protection is enabled, you can set the number of times the switch processes TC BPDUs with a certain period.

Private routes cannot communicate with each other

Leased lines are expensive

Bandwidth resources cannot be fully used

The address space is overlapping

The Agile Controller integrates all functions of the RADIUS server and client.

The Agile Controller as the RADIUS server, while the user terminal as the RADIUS client.

The authentication device (such as a 802.1X switch as the RADIUS server, while the user terminal as the RADIUS client).

The Agile Controller as the RADIUS server, while the authentication device (such as a 802.1x switch) as the RADIUS clients.

Multiple users can be created for network management Users may be asked to log in to

eSight from specified IP addresses in specific time ranges.

% The administrator can force unauthorized login users to log out.

% The login time of the administrator role also can be limited.

traffic-policy pi inbound

traffic classifier pi inbound

traffic behavior pi inbound

services-policy pi inbound

Management authorization

Technology authorization

Customer authorization

Administrative authorization

Collection by physical optical splitter

Collection through port mirroring

Centralized collection by NMS

Automatic collection

Compared with traffic policing traffic shaping has good anti-burst capability

Traffic shaping enables packets to be transmitted at an even rate

Because queues are used the delay is added when congestion occurs.

Compared with traffic policing traffic shaping is more suitable for voice service

The SSH protocol is not bound in the VTY user interface view.

The user service type authentication type and user service type are not configured.

The SSH server and client have inconsistent versions.

The SSH first-time authentication function is disabled.

Accuracy

Good portability

Verification

Rollback

LDP label distribution can be controlled in ordered mode

ln ordered mode when an LSR is the origin of a route it can send label mapping messages to the upstream router in

LDP label distribution cannot be controlled in independent mode

ln independent mode an LSR cannot send label mapping messages to the upstream router before it receives label m

Exchange rate change

Rainstorm disaster

Social unrest

Differences of industrial standards

TRUE

FALSE

TRUE

FALSE

MAC address

IP address

Lease time

Physical port and UDP port

The stateful inspection firewall needs to match the rules for each incoming packet

Because UDP is a connectionless protocol so the stateful inspection firewall cannot match UDP packets with the status table

When the stateful inspection firewall checks packets of one same connection are not correlated

The stateful inspection firewall only needs to match the first data packet against a rule and the subsequent packets of the conned

224.0.0.18

224.0.0.20

224.0.1.18

224.0.1.20

The hop count must be greater than

The hop count must be greater than2

The hop count must be greater than 15

The hop count must be greater than 255

GRE

IPSec VPN

SSL VPN

L2TP VPN

Customers access the enterprise network public resources or Internet during exchanges with or visits to the enterprise

Citizens access the Internet through the network provided by public utilities

Consumers connect to the Internet over the enterprise network

Enterprise employees on a business trip connect to the enterprise network through branch network

Each group VLAN must be bound to a principal VLAN

lf the VLAN ID has been used by the principal VLAN this VLAN cannot be used for the

VLANIF interface super-VLAN or sub-VLAN

After MUX VLAN is enabled on an interface VLAN mapping and VLAN stacking can be configured on the interface

An enterprise can use the principal port to connect to the enterprise servers separate port to connect to enterprise customers and groups to employees can both access enterprise servers enterprise employees can communicate with each other enterprise customers cannot communicate with each other

Packet filtering firewall

Proxy firewall

Stateful inspection firewall

Software firewall

The two routes will be both advertised to other BGP peers

One optimal route is selected from the two routes and then advertised to other BGP peers

The two routes will not be advertised to other BGP peers

One optimal route is selected from the two routes and then advertised to IBGP peers

Migration preparation

Migration implementation

Rollback solution

Contingency plan

P2MP

NBMA

SNAP

LAN(broadcast network)

TRUE

FALSE

TRUE

FALSE

Incorrect interface authentication configuration

Inconsistent Hello intervals

Unmatched subnet masks

Ds Inconsistent area IDs

Virtualization software configuration

SDN controller configuration

SNMP configuration

Automatic configuration

GIobal TCP synchronization

High jitter and long delay

High cost

Packets are discarded without differentiating the priority

Horizontal subsystem

Access subsystem

Backbone subsystem

Vertical subsystem E. Switching subsystem

Troubleshooting intermediate documents

Troubleshooting summary report

Change backup and maintains suggestions

User communication plan

An ACL is configured to prohibit all TCP connections between two BGP neighbor

Two IBGP peers are not physically directly connected

BGP synchronization is enabled on fully-meshed IBGP peers

Two BGP peers are configured with different routing Update intervals

openflow listening-ip 1.1.1.1

sdn controller souce-addressl.1.1.1

controller-ip 1.1.1.1

sdn listening-ip 1.1.1.1

OSPF includes type 1 and type 2 external routes

The cost of a Type 1 external route is the addition of the AS external cost and the AS internal cost the cost form a router to an A

The cost of a Type 2 external route is the AS external cost

A Type 2 external route is always preferred over a Type 1 external route when other when other conditions are the same

Other pots except the edge port participate in MSTP calculation

A port can function as different roles in different MSTIs

A regional edge port is located at the backup of the root port and provides a path from the designated to the root bridge

The backup port functions as the backup of the root port and provides a path from the designated bridge to the root bridge

Users cannot log in to the device remotely

The display interface coming output shows a large number of broadcast packets received on an interface

The CPU usage exceeds 70%

A lot of ICMP packets are lost in ping tests

Cost expenditure

Capital expenditure

One-time expenditure

Daily expenditure