Secure Shell(SSH) MCQ

Test your knowledge with important Secure Shell(SSH) MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Secure Shell(SSH) MCQs at Bissoy

• 15.On which port will the server generally listen to for SMTP?
  ক

  port 35

  খ

  port 63

  গ

  port 25

  ঘ

  port 65
• Which channel ensures local port forwarding?
  ক

  session

  খ

  x11

  গ

  forward-tcpip

  ঘ

  direct-tcpip
• Which is not a channel recognized by the SSH connection protocol?
  ক

  session

  খ

  backward-tcpip

  গ

  direct-tcpip

  ঘ

  x11
• In the “Opening a channel” phase what is the function of the “maximum packet size” parameter?
  ক

  It specifies the number of bytes in the IV

  খ

  It specifies the maximum size of an individual packet

  গ

  It specifies how many bytes of channel data can be sent

  ঘ

  None of the mentioned
• In the “Opening a channel” phase what is the function of the “innitial window size” parameter?
  ক

  It specifies the number of bytes in the IV

  খ

  It specifies the maximum size of an individual packet

  গ

  It specifies how many bytes of channel data can be sent

  ঘ

  None of the mentioned
• The Secure Shell Connection Protocol Message exchange has the fist phase as “Opening a Channel” and it sends a message with parameters- SSH_MSG_CHANNEL_OPEN channel type sender channel innitial window size maximum packet size What is the data type sender channel/innitial window size/ channel type?
  ক

  uint16

  খ

  uint32

  গ

  int16

  ঘ

  int32
• The secure authentication connection is referred to as-
  ক

  chisel

  খ

  tunnel

  গ

  zeroing

  ঘ

  handshaking
• SSH Connection Protocol runs on top of the SSH Transport Layer Protocol and assumes that a secure authentication connection is in use.
  ক

  True

  খ

  False
• Which of the following are valid authentication methods?
  ক

  Public Key Based

  খ

  Password Based

  গ

  Host Based

  ঘ

  All of the mentioned
• 6.SSH_MSG_USERAUTH_SUCCESS is represented by the byte –
  ক

  50

  খ

  51

  গ

  60

  ঘ

  None of the mentioned
• SSH_MSG_USERAUTH_FALIURE is represented by byte-
  ক

  50

  খ

  51

  গ

  52

  ঘ

  None of the mentioned
• In the User Authentication Protocol, when the client requests for authentication, then the first byte ( in this format) has decimal value –
  ক

  80

  খ

  60

  গ

  50

  ঘ

  61
• 3.In the Key generation procedure, the Encryption key from the server to client is represented as:
  ক

  HASH(K||H||”C”||session_id)

  খ

  HASH(K||H||”B”||session_id)
• 2.In the Key generation procedure, the Integrity Key from the server to client is represented as:
  ক

  HASH(K||H||”A”||session_id)

  খ

  HASH(K||H||”B”||session_id)
• In the Key generation procedure, the Integrity Key from the client to server is represented as:
  ক

  HASH(K||H||”E”||session_id)

  খ

  HASH(K||H||”C”||session_id)
• 15.In which port forwarding technique does the client act on the server’s behalf?
  ক

  Remote Forwarding

  খ

  Local Forwarding

  গ

  Stable Forwarding

  ঘ

  None of the mentioned
• The protocol ‘POP’ stands for-
  ক

  Personal Office Protocol

  খ

  Post Office Protocol

  গ

  Privacy Overall Protocol

  ঘ

  Privacy Over Protocol
• Which port forwarding technique intercepts application-level traffic and redirects it from an insecure TCP connections to secure SSH tunnels?
  ক

  Remote Forwarding

  খ

  Local Forwarding

  গ

  Stable Forwarding

  ঘ

  None of the mentioned
• In the Key generation procedure, the Initialization Vector from the server to client is represented as:
  ক

  HASH(K||H||”C”||session_id)

  খ

  HASH(K||H||”B”||session_id)
• The session Identifier remains constant throughout the SSH connection.
  ক

  True

  খ

  False
• What is the recommended MAC algorithm for the SSH Transport Layer?
  ক

  HMAC – MD5

  খ

  HMAC – MD5 – 96

  গ

  HMAC SHA1 – 96

  ঘ

  HMAC SHA1
• What is the recommended modes of operation for encryption and decryption in the Secure Shell Transport Layer?
  ক

  ECB

  খ

  OFB

  গ

  CBC

  ঘ

  CFB
• What is the recommended cryptographic algorithm for the Secure Shell Transport Layer?
  ক

  twofish 128

  খ

  aes 192

  গ

  aes 128

  ঘ

  blowfish
• Which one of the following does not undergo the encryption procedure?
  ক

  pdl

  খ

  pktl

  গ

  seq#

  ঘ

  padding
• Size of the sequence number is-
  ক

  32 bits

  খ

  48 bits

  গ

  56 bits

  ঘ

  64 bits
• The correct order of operations in the SSH Transport Layer Protocol Packet Formation is –
  ক

  Compression; Encryption; Padding and Addition of seq bits

  খ

  Compression; Padding and Addition of seq bits; Encryption

  গ

  Encryption; Padding and Addition of seq bits; Compression

  ঘ

  Padding and Addition of seq bits; Encryption; Compression
• Which is the correct order of the SSH Transport Layer Protocol Packet Exchanges?
  ক

  Algorithm Negotiation; End of key exchange; Service request; Identification string exchange

  খ

  Identification string exchange; Algorithm Negotiation; End of key exchange; Service request

  গ

  Identification string exchange; End of key exchange; Service request; Algorithm Negotiation

  ঘ

  Algorithm Negotiation; Identification string exchange; End of key exchange; Service request
• How many trust models does the RFC 4251 dictate?
  ক

  2

  খ

  3

  গ

  4

  ঘ

  5
• 2.Which is the lowest level in the SSH protocol stack?
  ক

  SSH Transport Layer Protocol

  খ

  TCP

  গ

  IP

  ঘ

  SSH User Authentication Protocol
• Which of the following is not a secure shell protocol?
  ক

  Transport Layer Protocol

  খ

  Secure Layer Protocol

  গ

  Connection Protocol

  ঘ

  User Authentication Protocol