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  1. Home
  2. ISACA Certification
  3. CISA Exam
  4. ISACA.CISA.v2024-03-31.q980 Dumps
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Question 636

Which of the following observations should be of GREATEST concern to an IS auditor reviewing a large organization's virtualization environment?

Correct Answer: D
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Question 637

in a controlled application development environment, the MOST important segregation of duties should be between the person who implements changes into the production environment and the:

Correct Answer: A
Explanation
In a controlled application development environment, the most important segregation of duties should be between the person who implements changes into the production environment and the application programmer. This segregation of duties ensures that no one person can create and deploy code without proper review, testing, and approval. This reduces the risk of errors, fraud, or malicious code being introduced into the production environment.
The other options are not as important as the segregation between the application programmer and the person who implements changes into production, but they are still relevant for achieving a secure and reliable application development environment. The segregation of duties between the person who implements changes into production and the systems programmer is important to prevent unauthorized or untested changes to system software or configuration. The segregation of duties between the person who implements changes into production and the computer operator is important to prevent unauthorized or uncontrolled access to production data or resources. The segregation of duties between the person who implements changes into production and the quality assurance (QA) personnel is important to ensure independent verification and validation of code quality and functionality.
References:
ISACA CISA Review Manual 27th Edition (2019), page 247
Segregation of Duties in an Agile Environment | AKF Partners3
Separation of Duties: How to Conform in a DevOps World4
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Question 638

Creating which of the following is how a hacker can insure his ability to return to the hacked system at will?

Correct Answer: D
Section: Protection of Information Assets
Explanation:
A backdoor refers to a generally undocumented means of getting into a system, mostly for programming and maintenance/troubleshooting needs. Most real world programs have backdoors. Creating backdoors is how a hacker can insure his ability to return to the hacked system at will.
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Question 639

Assuming this diagram represents an internal facility and the organization is implementing a firewall protection program, where should firewalls be installed?

Correct Answer: D
Explanation/Reference:
Explanation:
The objective of a firewall is to protect a trusted network from an untrusted network; therefore, locations needing firewall implementations would be at the existence of the external connections. All other answers are incomplete or represent internal connections.
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Question 640

An IS auditor reviewing wireless network security determines that the Dynamic Host Configuration Protocol is disabled at all wireless access points. This practice:

Correct Answer: A
Dynamic Host Configuration Protocol (DHCP) automatically assigns IP addresses to anyone connected to the network. With DHCP disabled, static IP addresses must be used and represent less risk due to the potential for address contention between an unauthorized device and existing devices on the network. Choice B is incorrect because DHCP is suitable for small networks. Choice C is incorrect because DHCP does not provide IP addresses when disabled. Choice D is incorrect because disabling of the DHCP makes it more difficult to exploit the well-known weaknesses in WEP.
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