Basic Computer Networks Questions and Answers

Practice Mode
Showing 10 of 217 questions
Q61
Manchester code is a
  • A non-return to zero code
  • B polar code
  • C both (a) and (b) above
  • D none of these
Answer: Option C
Q62
In the carrier sense network if the prevailing condition is a 'channel busy' then if the technique used is
  • A non-presistent then it results in randomised wait and sense
  • B 1-persistent then the channel is continually sensed
  • C p-persistent then randomised retransmission is done
  • D both (a) (b) above
Answer: Option B
Q63
Non-polling system is
  • A TDMA
  • B stop and wait
  • C continuous ARQ
  • D none of these
Answer: Option A
Q64
The system that can be used in both priority and non-priority modes is
  • A TDM
  • B Register-insertion
  • C carrier sense systems
  • D All of these
Answer: Option C
Q65
How many characters per sec (7 bits + 1 parity) can be transmitted over a 2400 bps line if the transfer is asynchronous (1 start and 1 stop bit) ?
  • A 300
  • B 240
  • C 250
  • D 275
Answer: Option A
Q66
How many characters per sec (7 bits + 1 parity) can be transmitted over a 2400 bps line if the transfer is asynchronous (1 start and 1 stop bit) ?
  • A 300
  • B 240
  • C 250
  • D 275
Answer: Option B
Q67
Hamming distance between 001111 and 010011 is
  • A 1
  • B 2
  • C 3
  • D 4
Answer: Option C
Q68
BSC is a
  • A character-oriented protocol
  • B bit-oriented protocol
  • C full-duplex protocol
  • D none of these
Answer: Option A
Q69
HDLC is
  • A bit-oriented
  • B code dependent
  • C both (a) and (b)
  • D none of these
Answer: Option A
Q70
Bit stuffing refers to
  • A inserting a '0' in flag steam to avoid ambiguity it with a flag
  • B inserting a '0' in flag stream to avoid ambiguity
  • C appending a nibble to the flag sequence
  • D appending a nibble to the use data stream
Answer: Option A

📚 More from Networking

← All Topics 🎯 Practice ⏱️ Take Test 🔍 Search
Networking
Back to Networking
Other Subjects
Questions and Answers for Competitive Exams Various Entrance Test