System Administrator 2026
Attempt This Past Paper
Find the distance from source A to destination D using Dijkstra algorithm.
  • A. A-b-c-j-d-k
  • B. A-b-c-g-h-d-k
  • C. A-e-d-k
  • D. A-e-g-h-d-k
A device that helps prevent congestion and data collisions –
  • A. Switch
  • B. Hub
  • C. Gateway
  • D. Proxy server
SONET stands for ___________
  • A. Synchronous optical network
  • B. Synchronous operational network
  • C. Stream optical network
  • D. Shell operational network
In SONET, STS-1 level of electrical signalling has the data rate of _________
  • A. 51.84 mbps
  • B. 155.52 mbps
  • C. 2488.320 mbps
  • D. 622.080 mbps
The path layer of SONET is responsible for the movement of a signal _________
  • A. From its optical source to its optical destination
  • B. Across a physical line
  • C. Across a physical section
  • D. Back to its optical source