Data Communication and Networking – Switching Methods – Space division Switching MCQs

This set of Data communication and Networking Multiple Choice Questions and Answers (MCQs) focuses on “Switching methods – Space division Switching ”.
 

1
. A crossbar switch is a _______ switch.
  • space-division
  • time-division
  • virtual-space
  • time-space
2
. A _______ switch usually has a higher efficiency than a _______ switch.
  • single stage; multistage
  • crossbar; dual
  • single crossbar; multistage
  • multistage; single crossbar
3
. A crossbar switch with x inputs and y outputs requires _______ crosspoints
  • xy
  • x2
  • y2
  • x/y
4
. A crossbar switch with 100 inputs and _______ outputs requires 20,000 crosspoints.
  • 100
  • 200
  • 1000
  • 2000
5
. A multistage switch usually has _______ crosspoints than a corresponding single crossbar switch
  • more
  • less
  • the same number of
  • double the
6
. In a multistage switch, there is usually _______ path(s) between input x and output y.
  • one
  • two
  • multiple
  • xy
7
. A three-stage switch has _______.
  • three switches per stage
  • one switch for each of three stages
  • three first stage switches
  • multiple switches for each of three stages
8
. Blocking is not a problem in a _______ switch.
  • single-stage
  • two-stage
  • three-stage
  • multistage
9
. _______ occurs when there is no path available between an input and an output
  • Switching
  • Blocking
  • Multiplexing
  • Conditioning
10
. The advantage of space-division switching is that it _______.
  • is instantaneous
  • is error free
  • needs no flow control
  • is free from blocking

 
 
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