IS-IS Protocol Data Units (PDUs) JN0-364 Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   Which IS-IS PDU type is used to request missing or newer Link State PDUs from a neighbor?

   • ALink State PDU (LSP)
   • BComplete Sequence Number PDU (CSNP)
   • CHello PDU
   • DPartial Sequence Number PDU (PSNP)
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   An engineer is monitoring IS-IS database synchronization on a broadcast network. The designated router (DIS) periodically sends a PDU that contains a complete list of all LSPs in the link-state database. What type of PDU is this?

   • ACSNP
   • BPSNP
   • CLSP
   • DHello
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   What information is carried in an IS-IS Link State PDU (LSP)?

   • AThe router's neighbors and associated metrics
   • BThe list of all LSPs in the database
   • CThe authentication credentials for the routing domain
   • DThe router's hostname and interface IP addresses
   Reveal Solution Discussion Select an answer first
5. 19foundation · easy

   How are Link State PDUs (LSPs) used in IS-IS database synchronization?

   • AThey are flooded throughout the network and stored in each router's link-state database.
   • BThey are used to request missing LSPs from neighbors.
   • CThey are sent only to the designated router on broadcast networks.
   • DThey are exchanged only during initial adjacency formation.
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   How are IS-IS PDUs encapsulated when transmitted over an Ethernet network?

   • AThey are encapsulated in IP packets with a protocol number of 89.
   • BThey are encapsulated in TCP segments.
   • CThey are encapsulated directly in Ethernet frames using a dedicated EtherType.
   • DThey are encapsulated in UDP datagrams.
   Reveal Solution Discussion Select an answer first