Q1. Which of the following are natural environmental threats that an organization faces? Each correct answer represents a complete solution. Choose two.
A.Strikes
B. Floods
C. Accidents
D. Storms
Correct Answer: B, D
Q2. In which of the following network topologies does the data travel around a loop in a single direction and pass through each device?
A.Ring topology
B. Tree topology
C. Star topology
D. Mesh topology
Correct Answer: A
Q3. John works as a professional Ethical Hacker. He has been assigned the project of testing the security of www.we-are-secure.com. John notices that the We-are-secure network is vulnerable to a man-in-the-middle attack since the key exchange process of the cryptographic algorithm it is using does not thenticate participants. Which of the following cryptographic algorithms is being used by the We-are-secure server?
A.Blowfish
B. Twofish
C. RSA
D. Diffie-Hellman
Correct Answer: D
Q4. Which of the following encryption modes can make protocols without integrity protection even more susceptible to replay attacks, since each block gets decrypted in exactly the same way?
A.Cipher feedback mode
B. Cipher block chaining mode
C. Output feedback mode
D. Electronic codebook mode
Correct Answer: D
Q5. Which of the following is a correct sequence of different layers of Open System Interconnection (OSI) model?
A.Physical layer, data link layer, network layer, transport layer, presentation layer, session layer, and application layer
B. Physical layer, network layer, transport layer, data link layer, session layer, presentation layer, and application layer
C. application layer, presentation layer, network layer, transport layer, session layer, data link layer, and physical layer
D. Physical layer, data link layer, network layer, transport layer, session layer, presentation layer, and application layer
Correct Answer: D
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