Which of the following is an objective of public key infrastructure (PKI)?
Correct Answer: B
An objective of public key infrastructure (PKI) is to independently authenticate the validity of the sender's public key. PKI is a system that uses cryptographic keys to secure communications and transactions. PKI involves a trusted third party called a certificate authority (CA) that issues digital certificates that link a public key with an identity. The recipient can use the CA's public key to verify the sender's certificate and public key.
Question 42
Which process converts extracted information to a format understood by investigators?
Correct Answer: A
The process that converts extracted information to a format understood by investigators is reporting. This is because reporting is a technique that involves presenting and communicating the results and findings of an investigation in a clear, concise, and accurate manner, using appropriate formats, such as tables, charts, graphs, etc. Reporting helps to convey the meaning and significance of the extracted information to the investigators, as well as other stakeholders, such as management, auditors, regulators, etc. The other options are not processes that convert extracted information to a format understood by investigators, but rather different techniques that are related to information extraction or analysis, such as ingestion (B), imaging C, or filtering (D).
Question 43
Which of the following is a feature of an intrusion detection system (IDS)?
Correct Answer: C
Explanation A feature of an intrusion detection system (IDS) is automated response. This is because an IDS is a system that monitors network or system activities for malicious or anomalous behavior, and alerts or reports on any detected incidents. An IDS can also perform automated response actions, such as blocking traffic, terminating sessions, or sending notifications, to contain or mitigate the incidents. The other options are not features of an IDS, but rather different concepts or techniques that are related to intrusion detection or prevention, such as intrusion prevention (A), interface with firewalls C, or back doors into applications (D).
Question 44
When reviewing user management roles, which of the following groups presents the GREATEST risk based on their permissions?
Correct Answer: A
When reviewing user management roles, the group that presents the GREATEST risk based on their permissions is privileged users. This is because privileged users are users who have elevated or special access rights or permissions to systems or resources, such as administrators, superusers, root users, etc. Privileged users present the greatest risk based on their permissions, because they can perform actions or operations that can affect the security, availability, or functionality of systems or resources, such as installing or uninstalling software, modifying or deleting files, granting or revoking access rights, etc. Privileged users can also abuse or misuse their permissions for malicious or unauthorized purposes, such as stealing or leaking sensitive data, sabotaging systems or services, bypassing security controls, etc. The other options are not groups that present the greatest risk based on their permissions, but rather different types of users that may have different levels of access rights or permissions to systems or resources, such as database administrators (B), terminated employees C, or contractors (D).
Question 45
Which of the following BEST characterizes security mechanisms for mobile devices?
Correct Answer: A
The BEST characteristic that describes security mechanisms for mobile devices is easy to control through mobile device management. This is because mobile device management is a technique that allows organizations to centrally manage and secure mobile devices, such as smartphones, tablets, laptops, etc., that are used by their employees or customers. Mobile device management helps to enforce security policies, configure settings, install applications, monitor usage, wipe data, etc., on mobile devices remotely and efficiently. The other options are not characteristics that describe security mechanisms for mobile devices, but rather different aspects or factors that affect security mechanisms for mobile devices, such as weakness (B), inadequacy C, or reliability (D).
