System Administrator 2026
Attempt This Past Paper
The photonic layer of the SONET is similar to the __________ of OSI model.
  • A. Network layer
  • B. Data link layer
  • C. Physical layer
  • D. Transport layer
In SONET, each synchronous transfer signal STS-n is composed of __________
  • A. 2000 frames
  • B. 4000 frames
  • C. 8000 frames
  • D. 16000 frames
Which one of the following is not true about SONET?
  • A. Frames of lower rate can be synchronously time-division multiplexed into a higher-rate frame
  • B. Multiplexing is synchronous tdm
  • C. All clocks in the network are locked to a master clock
  • D. Sts-1 provides the data rate of 622.080mbps
A linear SONET network can be ________
  • A. Point-to-point
  • B. Multi-point
  • C. Both point-to-point and multi-point
  • D. Single point
Automatic protection switching in linear network is defined at the _______
  • A. Line layer
  • B. Section layer
  • C. Photonic layer
  • D. Path layer
A unidirectional path switching ring is a network with __________
  • A. One ring
  • B. Two rings
  • C. Three rings
  • D. Four rings
What is SDH?
  • A. Sdh is similar standard to sonet developed by itu-t
  • B. Synchronous digital hierarchy
  • C. Sdh stands for synchronous digital hierarchy and is a similar standard to sonet developed by itu-t
  • D. None of the mentioned
Which key exchange technique is not supported by SSLv3?
  • A. Anonymous diffie-hellman
  • B. Fixed diffie-hellman
  • C. Rsa
  • D. Fortezza
Which of the following are valid authentication methods?
  • A. Public key based
  • B. Password based
  • C. Host based
  • D. All of the mentioned