Isaca Cybersecurity Audit Practice Test - Questions Answers

Asecurity operations center (SOC)is a centralized unit that monitors, detects, analyzes, and responds to cyber threats and incidents in real time. A SOC enables continuous identification and mitigation of security threats to an organization by using various tools, processes, and expertise.

Hacktivistsare politically motivated hackers who target specific individuals or organizations to achieve various ideological ends. They may use various methods such as defacing websites, launching denial-of-service attacks, leaking confidential information, or spreading propaganda to advance their causes or protest against perceived injustices.

Hacktivistsare politically motivated hackers who target specific individuals or organizations to achieve various ideological ends. They may use various methods such as defacing websites, launching denial-of-service attacks, leaking confidential information, or spreading propaganda to advance their causes or protest against perceived injustices.

Cyber threat intelligence aims to research and analyze trends and technical developments in the areas ofcybercrime, hacktivism, and espionage. These are the main sources of malicious cyber activities that pose risks to organizations and individuals. Cyber threat intelligence helps to understand the motivations, capabilities, tactics, techniques, and procedures of various threat actors and groups.

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.

Elliptic curve cryptography (ECC)is a more efficient form of public key cryptography as it demands less computational power and offers more security per bit. ECC is based on the mathematical properties of elliptic curves, which are curves that have a special shape that makes them suitable for cryptography. ECC can achieve the same level of security as other public key algorithms with much smaller key sizes, which reduces storage and bandwidth requirements.

Trend/variance-detection toolsare tools that look for anomalies in user behavior. These tools use statistical methods to establish a baseline of normal user activity and then compare it with current or historical data to identify deviations or outliers. These tools can help to detect unauthorized access, fraud, insider threats, or other malicious activities.

The second line of defense in cybersecurity includes risk management monitoring, and measurement of controls. This is because the second line of defense is responsible for ensuring that the first line of defense (the operational managers and staff who own and manage risks) is effectively designed and operating as intended. The second line of defense also provides guidance, oversight, and challenge to the first line of defense. The other options are not part of the second line of defense, but rather belong to the first line of defense (A), the third line of defense C, or an external service provider (D).

Within the NIST core cybersecurity framework, the identify function is associated with using organizational understanding to minimize risk to systems, assets, and data. This is because the identify function helps organizations to develop an organizational understanding of their cybersecurity risk management posture, as well as the threats, vulnerabilities, and impacts that could affect their business objectives. The other functions are not directly related to using organizational understanding, but rather focus on detecting (A), recovering C, or responding (D) to cybersecurity events.