Top 50+ Solved Network Security MCQ Questions Answer
Q. The VLF and LF bauds use propagation for communication
a. Ground
b. Sky
c. Line of sight
d. Space
Q. The start and stop bits are used in serial communication for
a. error detection
b. error correction
c. Synchronization
d. slowing down the communication
Q. ___________ is a type of transmission impairment in which the Signal looses strengthdue to The resistance of the transmission medium.
a. Attenuation
b. Distortion
c. Noise
d. Decible
Q. ________________ is a bit-oriented protocol for communication over point-to-point andmulti-point links .
a. Stop-and-wait
b. HDLC
c. Sliding window
d. Go-back-N
Q. In substitution, a character in the plaintext is always changed to the same character inthe ciphertext, regardless of its position in the text.
a. polyalphabetic
b. mono alphabetic
c. Transpositional
d. multialphabetic
Q. Which of the following is not associated with the session layer ?
a. Dialog control
b. Token management
c. Semantics of the information transmitted
d. Synchronization
Q. What is the size of the 'total length' field in IPv4 datagram ?
a. 4 bits
b. 8 bits
c. 16 bits
d. 32 bits
Q. The process of dividing an analog signal into a string of discrete outputs, each ofconstant amplitude, is called :
a. Strobing
b. Amplification
c. Conditioning
d. Quantization
Q. Which transmission technique guarantees that data packets will be received by thereceiver in the same order in which they were sent by the sender.
a. Broadcasting
b. Unicasting
c. Packet switching
d. Circuit switching
Q. Which are the two modes of IP security?
a. Transport and certificate
b. Transport and tunnel
c. Certificate and tunnel
d. Preshared and tr