Network Security Questions and Answers – Secure Shell(SSH) – I

This set of Network Security Multiple Choice Questions & Answers (MCQs) focuses on “Secure Shell(SSH) – 1”.

1. Which of the following is not a secure shell protocol?
a) Transport Layer Protocol
b) Secure Layer Protocol
c) Connection Protocol
d) User Authentication Protocol
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2.Which is the lowest level in the SSH protocol stack?
a) SSH Transport Layer Protocol
b) TCP
c) IP
d) SSH User Authentication Protocol
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3. How many trust models does the RFC 4251 dictate?
a) 2
b) 3
c) 4
d) 5
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4. Which is the correct order of the SSH Transport Layer Protocol Packet Exchanges?
a) Algorithm Negotiation; End of key exchange; Service request; Identification string exchange
b) Identification string exchange; Algorithm Negotiation; End of key exchange; Service request
c) Identification string exchange; End of key exchange; Service request; Algorithm Negotiation
d) Algorithm Negotiation; Identification string exchange; End of key exchange; Service request
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5. The correct order of operations in the SSH Transport Layer Protocol Packet Formation is –
a) Compression; Encryption; Padding and Addition of seq bits
b) Compression; Padding and Addition of seq bits; Encryption
c) Encryption; Padding and Addition of seq bits; Compression
d) Padding and Addition of seq bits; Encryption; Compression
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6. Size of the sequence number is-
a) 32 bits
b) 48 bits
c) 56 bits
d) 64 bits
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7. Which one of the following does not undergo the encryption procedure?
a) pdl
b) pktl
c) seq#
d) padding
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8. What is the recommended cryptographic algorithm for the Secure Shell Transport Layer?
a) twofish 128
b) aes 192
c) aes 128
d) blowfish
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9. What is the recommended modes of operation for encryption and decryption in the Secure Shell Transport Layer?
a) ECB
b) OFB
c) CBC
d) CFB
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10. What is the recommended MAC algorithm for the SSH Transport Layer?
a) HMAC – MD5
b) HMAC – MD5 – 96
c) HMAC SHA1 – 96
d) HMAC SHA1
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11. The session Identifier remains constant throughout the SSH connection.
a) True
b) False
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12. In the Key generation procedure, the Initialization Vector from the server to client is represented as:
a) HASH(K||H||”C”||session_id)
b) HASH(K||H||”B”||session_id)
c) HASH(K||H||”F”||session_id)
d) HASH(K||H||”D”||session_id)
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13. Which port forwarding technique intercepts application-level traffic and redirects it from an insecure TCP connections to secure SSH tunnels?
a) Remote Forwarding
b) Local Forwarding
c) Stable Forwarding
d) None of the mentioned
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14. The protocol ‘POP’ stands for-
a) Personal Office Protocol
b) Post Office Protocol
c) Privacy Overall Protocol
d) Privacy Over Protocol
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15.In which port forwarding technique does the client act on the server’s behalf?
a) Remote Forwarding
b) Local Forwarding
c) Stable Forwarding
d) None of the mentioned
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Sanfoundry Global Education & Learning Series – Cryptography and Network Security.

To practice all areas of Cryptography and Network Security, here is complete set of 1000+ Multiple Choice Questions and Answers.

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