System Administrator 2026
The outcome of Dijkstra’s calculation is used to populate the __________
  • A. Topology table
  • B. Routing table
  • C. Neighbor table
  • D. Adjacency table
Which packet is NOT an OSPF packet type?
  • A. Lsu
  • B. Lsr
  • C. Dbd
  • D. Query
Which multicast address does the OSPF Hello protocol use?
  • A. 224.0.0.5
  • B. 224.0.0.6
  • C. 224.0.0.7
  • D. 224.0.0.8
DBD packets are involved during which two states?
  • A. Exstart and exchange
  • B. Loading and two-way
  • C. Init and full
  • D. Down and loading
At which interval does OSPF refresh LSAs?
  • A. 10 seconds
  • B. 30 seconds
  • C. 30 minutes
  • D. 1 hour
Which field is NOT a field within an OSPF packet header?
  • A. Packet length
  • B. Router id
  • C. Authentication type
  • D. Maxage time
Which two commands are required for basic OSPF configuration?
  • A. €?[network mask] area [area-id]€? and €?router ospf [process-id]€?
  • B. €?[wildcard-mask] area [area-id]€? and €?[network mask] area [area-id]€?
  • C. Only €?router ospf [process-id]€?
  • D. €?[wildcard-mask] area [area-id]€? and €?router ospf [process-id]€?