Free ISC2 CISSP Exam Practice Questions & Explanations

Last updated on: Aug 26, 2026
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Question 1

Which of the following represents the GREATEST risk to data confidentiality?

Answer Options
Correct Answer: C
Explanation

Generating backup tapes unencrypted represents the greatest risk to data confidentiality, as it exposes the data to unauthorized access or disclosure if the tapes are lost, stolen, or intercepted. Backup tapes are often stored off-site or transported to remote locations, which increases the chances of them falling into the wrong hands. If the backup tapes are unencrypted, anyone who obtains them can read the data without any difficulty. Therefore, backup tapes should always be encrypted using strong algorithms and keys, and the keys should be protected and managed separately from the tapes.

The other options do not pose as much risk to data confidentiality as generating backup tapes unencrypted. Network redundancies are not implemented will affect the availability and reliability of the network, but not necessarily the confidentiality of the data. Security awareness training is not completed will increase the likelihood of human errors or negligence that could compromise the data, but not as directly as generating backup tapes unencrypted. Users have administrative privileges will grant users more access and control over the system and the data, but not as widely as generating backup tapes unencrypted.

Question 4

What is the MAIN purpose of a security assessment plan?

Answer Options
Correct Answer: B
Explanation

The main purpose of a security assessment plan is to provide the objectives for the security and privacy control assessments and a detailed roadmap of how to conduct such assessments. A security assessment plan defines the scope, criteria, methods, roles, and responsibilities of the security assessment process, which is the process of evaluating and testing the effectiveness and compliance of the security and privacy controls implemented in an information system. A security assessment plan helps to ensure that the security assessment process is consistent, systematic, and comprehensive. A security assessment plan does not provide guidance on security requirements, as this is the role of a security requirements analysis or a security architecture design. A security assessment plan does not provide technical information to executives, as this is the role of a security report or a security briefing. A security assessment plan does not provide education to employees, as this is the role of a security awareness or a security training program.

Question 5

Which of the following will have the MOST influence on the definition and creation of data classification and data ownership policies?

Answer Options
Correct Answer: D
Explanation

A Business Impact Analysis (BIA) is a process of identifying and assessing the potential effects of various disruptions on the critical business functions and processes. A BIA will help to determine the data classification and data ownership policies, as it will provide information on the value, sensitivity, and criticality of the data, as well as the roles and responsibilities of the data owners and custodians. Option A, data access control policies, are the policies that define the rules and mechanisms for granting or denying access to data, not the policies that define the data classification and data ownership. Option B, threat modeling, is a process of identifying and analyzing the threats and vulnerabilities that may affect the system or application, not the data. Option C, Common Criteria (CC), is a framework for evaluating and certifying the security of products and systems, not the data. Reference: Free daily CISSP practice questions | CISSP, CISM, and CC training by, CISSP All-in-One Exam Guide, Eighth Edition