System Administrator 2026
What are the Methods to move data through a network of links and switches?
  • A. Packet switching and line switching
  • B. Circuit switching and line switching
  • C. Line switching and bit switching
  • D. Packet switching and circuit switching
As the resources are reserved between two communicating end systems in circuit switching, ___________ is achieved.
  • A. Authentication
  • B. Guaranteed constant rate
  • C. Reliability
  • D. Store and forward
In _________ systems, resources are allocated on demand.
  • A. Packet switching
  • B. Circuit switching
  • C. Line switching
  • D. Frequency switching
Which of the following is not an application layer service?
  • A. Network virtual terminal
  • B. File transfer, access, and management
  • C. Mail service
  • D. Error control
The full form of OSI is OSI model is ______________
  • A. Open systems interconnection
  • B. Open software interconnection
  • C. Open systems internet
  • D. Open software internet
Which of the following is not physical layer vulnerability?
  • A. Physical theft of data & hardware
  • B. Physical damage or destruction of data & hardware
  • C. Unauthorized network access
  • D. Keystroke & other input logging