Practice Free CCZT Certificate of Competence in Zero Trust (CCZT) Exam Questions Answers With Explanation

To respond quickly to changes while implementing ZT Strategy, an organization requires a mindset and culture of continuous risk evaluation and policy adjustment. This means that the organization should constantly monitor the threat landscape, assess the security posture, and update the policies and controls accordingly to maintain a high level of protection and resilience. The organization should also embrace feedback, learning, and improvement as part of the ZT journey.

References =

• Certificate of Competence in Zero Trust (CCZT) prepkit, page 7, section 1.3
• Cultivating a Zero Trust mindset - AWS Prescriptive Guidance, section “Continuous learning and improvement”
• Zero Trust architecture: a paradigm shift in cybersecurity - PwC, section “Continuous monitoring and improvement”

SDP features, like multi-factor authentication (MFA), mutual transport layer security (mTLS), and device fingerprinting, protect against phishing attacks by verifying the identity and authenticity of both the user and the device before granting access to a resource. Phishing attacks are attempts to trick users into revealing their credentials or other sensitive information by impersonating a legitimate entity or service1. SDP features can prevent phishing attacks by:

• MFA: MFA is a security mechanism that requires a user to provide more than one piece of evidence to prove their identity, such as a password, a one-time code, a biometric factor, or a physical token2. MFA can protect against phishing attacks by making it harder for attackers to access a resource even if they manage to obtain the user’s password or other credentials2.
• mTLS: mTLS is a security protocol that enables mutual authentication and encryption between two parties, such as a client and a server3. mTLS can protect against phishing attacks by ensuring that both the client and the server have valid and trusted certificates, and by preventing attackers from intercepting or modifying the communication between them3.
• Device fingerprinting: Device fingerprinting is a technique that identifies and verifies a device based on its unique characteristics, such as its operating system, browser, IP address, or hardware configuration4. Device fingerprinting can protect against phishing attacks by allowing only authorized devices to access a resource, and by detecting any anomalies or changes in the device’s attributes that may indicate a compromise4.

References =

• What is Phishing? | How to Identify & Prevent Phishing Attacks | Cloudflare
• What is Multi-Factor Authentication (MFA)? | Cloudflare
• What is Mutual TLS (mTLS)? | Cloudflare
• What is Device Fingerprinting? | Cloudflare

The ZT tenet of assume breach is based on the notion that malicious actors reside inside and outside the network, and that any user, device, or service can be compromised at any time. Therefore, ZT requires continuous verification and validation of all entities and transactions, and does not rely on implicit trust or perimeter-based defenses

Single Packet Authorization (SPA) is a method used in Zero Trust networks to securely request access to a service. A key concept of SPA is that the SPA packet must be self-contained, carrying all necessary information for the authorization decision within a single, encrypted packet. This ensures that the packet alone can provide enough context for the receiving server to authenticate the request and make an authorization decision, without needing additional information exchanges. This self-contained nature of SPA packets aligns with the principle of minimizing the movement and exposure of sensitive credentials, thus enhancing the security of the authentication process??.

Data and asset classification is a prerequisite action to understand the organization’s protect surface clearly because it helps to identify the most critical and sensitive data and assets that need to be protected by Zero Trust principles. Data and asset classification also helps to define the appropriate policies and controls for different levels of data and asset sensitivity.

References = Certificate of Competence in Zero Trust (CCZT) - Cloud Security Alliance, Zero Trust Training (ZTT) - Module 2: Data and Asset Classification

In a Zero Trust Architecture, the Policy Decision Point (PDP) is the primary entity responsible for crafting and maintaining policies, especially those that enforce the principle of least privilege for network access. The PDP evaluates all relevant information about an access request—including the identity of the requester, the context of the request, and the requested resource—and makes a decision on whether to grant or deny access based on predefined policies. This process ensures that access rights are strictly aligned with the necessity of the role and the minimum access required to perform a function, thereby adhering to the principle of least privilege??.

Policy is the element of ZT that focuses on the governance rules that define the “who, what, when, how, and why” aspects of accessing target resources. Policy is the core component of a ZTA that determines the access decisions and controls for each request based on various attributes and factors, such as user identity, device posture, network location, resource sensitivity, and environmental context. Policy is also the element that enables the ZT principles of “never trust, always verify” and “scrutinize explicitly” by enforcing granular, dynamic, and data-driven rules for each access request.

References =

• Certificate of Competence in Zero Trust (CCZT) prepkit, page 14, section 2.2.2
• What Is Zero Trust Architecture (ZTA)? - F5, section “Policy Engine”
• Zero Trust Architecture Project - NIST Computer Security Resource Center, slide 9
• [Zero Trust Frameworks Architecture Guide - Cisco], page 4, section “Policy Decision Point”

 The protect surface in a ZTA is the collection of sensitive data, assets, applications, and services (DAAS) that require protection from threats1. One benefit of the protect surface in a ZTA for an organization implementing controls is that it allows the controls to be moved closer to the asset and minimize risk. This means that instead of relying on a single perimeter or boundary to protect the entire network, ZTA enables granular and dynamic controls that are applied at or near the DAAS components, based on the principle of least privilege2. This reduces the attack surface and the potential impact of a breach, as well as improves the visibility and agility of the security posture3.

References =

• Zero Trust Architecture | NIST
• Zero Trust Architecture Explained: A Step-by-Step Approach - Comparitech
• What is Zero Trust Architecture (ZTA)? - CrowdStrike

Multifactor authentication is a method of validating the identity of an entity by requiring two or more factors, such as something the entity knows (e.g., password, PIN), something the entity has (e.g., token, smart card), or something the entity is (e.g., biometric, behavioral). Multifactor authentication enhances the security of Zero Trust Architecture (ZTA) by reducing the risk of identity compromise and unauthorized access.

References = Certificate of Competence in Zero Trust (CCZT) - Cloud Security Alliance, Zero Trust Training (ZTT) - Module 4: Identity and Access Management

Data and asset classification should be based on the sensitivity of data, which is the degree to which the data requires protection from unauthorized access, modification, or disclosure. Data sensitivity is determined by the potential impact of data loss, theft, or corruption on the organization, its customers, and its partners. Data sensitivity can also be influenced by legal, regulatory, and contractual obligations.

References =

• Certificate of Competence in Zero Trust (CCZT) prepkit, page 10, section 2.1.1
• Identify and protect sensitive business data with Zero Trust, section 1
• Secure data with Zero Trust, section 1
• SP 800-207, Zero Trust Architecture, page 9, section 3.2.1

In a ZTA, the logical combination of both the policy engine (PE) and policy administrator (PA) is called the policy decision point (PDP). The PE is the component that evaluates the policies and the contextual data collected from various sources and generates an access decision. The PA is the component that establishes or terminates the communication between a subject and a resource based on the access decision. The PDP communicates with the policy enforcement point (PEP), which enforces the access decision on the resource.

References =

• Certificate of Competence in Zero Trust (CCZT) prepkit, page 14, section 2.2.2
• Zero Trust Architecture Project - NIST Computer Security Resource Center, slide 9
• What Is a Zero Trust Security Framework? | Votiro, section “The Policy Engine and Policy Administrator”
• Zero Trust Frameworks Architecture Guide - Cisco, page 4, section “Policy Decision Point”

A critical product of the gap analysis process is the implementation’s requirements, which are the specifications and criteria that define the desired outcomes, capabilities, and functionalities of the ZTA. The implementation’s requirements are derived from the gap analysis, which identifies the current state, the target state, and the gaps between them. The implementation’s requirements help to guide the design, development, testing, and deployment of the ZTA, as well as the evaluation of its effectiveness and alignment with the business objectives and needs.

References =

• Zero Trust Planning - Cloud Security Alliance, section “Scope, Priority, & Business Case”
• The Zero Trust Journey: 4 Phases of Implementation - SEI Blog, section “Second Phase: Assess”
• Planning for a Zero Trust Architecture: A Planning Guide for Federal …, section “Gap Analysis”

In a ZTA, policies should be created in the control plane, which is the logical component that defines and manages the policies for accessing resources. The control plane consists of policy entities, such as policy administrators, policy engines, and policy decision points, that are responsible for crafting, maintaining, evaluating, and enforcing the policies1. The control plane interacts with the data plane, which is the logical component that handles the data transmission and processing, and the network, which is the physical or virtual component that provides the connectivity and transport for the data plane1. The endpoint is the device or system that requests or provides access to a resource1.

References =

• Zero Trust Architecture | NIST