PPSC Past Papers MCQs

PPSC Past Papers Most Repeated  — 741 MCQs  (Page 73 of 75)

Practice PPSC Past Papers MCQs with solved questions from real past exams. These MCQs cover PPSC Past Papers Most Repeated past papers and are ideal for candidates preparing for competitive exams.

View Tests (30 MCQs each)
Which method has two way link?
  • A. Open loop method
  • B. Closed loop method
  • C. Open & closed loop method
  • D. None of the mentioned
Which method requires external authority and is inflexible?
  • A. Open loop method
  • B. Closed loop method
  • C. Open & closed loop method
  • D. None of the mentioned
Which method needs precorrect time?
  • A. Open loop method
  • B. Closed loop method
  • C. Open & closed loop method
  • D. None of the mentioned
In open loop method, the time reference error __________ with respect to time.
  • A. Increases exponentially
  • B. Decreases exponentially
  • C. Increases quadratically
  • D. Decreases quadratically
When a terminal is able to utilize the measurements made on the return link it is called as
  • A. Open loop method
  • B. Closed loop method
  • C. Quasi close loop method
  • D. None of the mentioned
Which reduces the effective distance between signals in signal space?
  • A. Time error
  • B. Frequency offset
  • C. Time error & frequency offset
  • D. None of the mentioned
The system which has ______ signal to noise ratio can tolerate larger timing error.
  • A. Large
  • B. Small
  • C. Large & small
  • D. None of the mentioned
___________________ are the array of switches which forms circuit switching fabrics.
  • A. Packet arrays
  • B. Optical cross connects
  • C. Circuit arrays
  • D. Optical networks
___________ is an example of a static circuit-switched network.
  • A. Oxc
  • B. Circuit regenerator
  • C. Packet resolver
  • D. Sdh/sonet