System Administrator 2026
Attempt This Past Paper
Which of the following is incorrect about hubs?
  • A. It does not have intelligence
  • B. It has routing tables
  • C. It uses broadcast messages
  • D. It has no ip address
What is the form of data, that is transmitted in the hub?
  • A. Electrical signals
  • B. Packets
  • C. Frames
  • D. Sign waves
Which of the following device belongs to physical layer?
  • A. Switch
  • B. Hub
  • C. Bridge
  • D. Router
Which of the following device is a data link layer device?
  • A. Router
  • B. Switch
  • C. Hub
  • D. Repeater
What is the maximum speed of the hub for packet broadcasting?
  • A. 100 mbps
  • B. 10 mbps
  • C. 1 mbps
  • D. 250 mbps
A hub has full duplex mode of transmission.
  • A. True
  • B. False
  • C.
  • D.
What is the hamming distance between the words 1010101, 1100110?
  • A. 4
  • B. 5
  • C. 8
  • D. 3
What is the disadvantage of the burst errors over single bit errors in error detection and correction?
  • A. Difficult to correct
  • B. Difficult to detect
  • C. High error rate
  • D. Frequent occurring
What is the minimum hamming distance between the words 0001, 0100, 0110, 1111?
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Which of the following is an error correcting code?
  • A. Checksum
  • B. Parity
  • C. Cyclic redundancy check
  • D. Hamming codes
Word of the Day
17 Jun
Ominous
giving the worrying impression that something bad is going to happen; threateningly inauspicious.
منحوس، بدنام

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