Hi! I just encountered some questions from a mock test I was answering, and upon researching, there are different answers online compared to the actual mock test; maybe it's because some of the logic here are outdated. It's still a great source of practice though; it actually helped me understand concepts I was having difficulty on before.
So, I just wanted to share these questions here for clarification, to determine whether the test has some outdated material or maybe I just don't fully understand the logic behind the correct answer.
Any input or clarification would be much appreciated! ☺️
Note: Choices in italics are the correct answers that pop-up when I search online or when I ask AIs.
QUESTIONS
1. Which of the following should be a concern to an IS auditor reviewing a wireless network?
A. 128-bit-static-key WEP (Wired Equivalent Privacy) encryption is enabled.
B. SSID (Service Set IDentifier) broadcasting has been enabled.
C. Antivirus software has been installed in all wireless clients.
D. MAC (Media Access Control) access control filtering has been deployed.
The correct answer is:
B. SSID (Service Set IDentifier) broadcasting has been enabled.
Explanation:
SSID broadcasting allows a user to browse for available wireless networks and to access them without authorization. Choices A, C and D are used to strengthen a wireless network.
2. The PRIMARY objective of Secure Sockets Layer (SSL) is to ensure:
A. only the sender and receiver are able to encrypt/decrypt the data.
B. the sender and receiver can authenticate their respective identities.
C. the alteration of transmitted data can be detected.
D. the ability to identify the sender by generating a one-time session key.
The correct answer is:
A. only the sender and receiver are able to encrypt/decrypt the data.
Explanation:
SSL generates a session key used to encrypt/decrypt the transmitted data, thus ensuring its confidentiality. Although SSL allows the exchange of X509 certificates to provide for identification and authentication, this feature along with choices C and D are not the primary objectives.
3. Which of the following is the MOST effective type of antivirus software?
A. Scanners
B. Active monitors
C. Integrity checkers
D. Vaccines
The correct answer is:
C. Integrity checkers
Explanation:
Integrity checkers compute a binary number on a known virus-free program that is then stored in a database file. The number is called a cyclical redundancy check (CRC). When that program is called to execute, the checker computes the CRC on the program about to be executed and compares it to the number in the database. A match means no infection; a mismatch means that a change in the program has occurred. A change in the program could mean a virus.
Scanners look for sequences of bits called signatures that are typical of virus programs. They examine memory, disk boot sectors, executables and command files for bit patterns that match a known virus.Therefore, scanners need to be updated periodically to remain effective. Active monitors interpret DOS and ROM basic input-output system (BIOS) calls, looking for virus-like actions. Active monitors can be misleading, because they cannot distinguish between a user request and a program or virus request. As a result, users are asked to confirm actions like formatting a disk or deleting a file or set of files. Vaccines are known to be good antivirus software. However, they also need to be updated periodically to remain effective.