System Administrator 2026
Attempt This Past Paper
POP3 protocol belongs to which layer of the ISO OSI model?
  • A. Data link layer
  • B. Network layer
  • C. Application layer
  • D. Transport layer
IMAP protocol is used to ___________
  • A. To manage devices on the network
  • B. Sending an email through the internet
  • C. Download the entire email account inbox on the computer
  • D. Synchronizes email on the computer with the email account’s email-server
Which routing algorithm was replaced by link state routing algorithm in the ARPANET?
  • A. Path routing
  • B. Distance vector routing
  • C. Broadcast routing
  • D. Multicast routing
What is flooding in link state routing in case of exchanging topology information?
  • A. Exposing routing tables to neighbors
  • B. Sending duplicate packets to nodes
  • C. Communicating with every router using messages
  • D. Spreading link state packets
Which information in the link state packets helps in discarding old link state packets?
  • A. Information about topology
  • B. Sequence number
  • C. Age
  • D. Number of nodes it visits
Which sequence of procedure is correct to build a routing table in link state routing?
  • A. Creating lsp €? flooding €? shortest path tree €? calculating routing table
  • B. Shortest path tree €? flooding €? creating lsp €? calculating routing table
  • C. Creating lsp €? flooding €? calculating routing table €? shortest path tree
  • D. Shortest path tree €? flooding €? calculating routing table -creating lsp