CCNP Job Interview Questions & Answers Part 3
  CCNP Job Interview Questions & Answere Part 3       Q201: Does IS-IS elect a Backup Designated Router on a broadcast subnetwork?     Ans: IS-IS does not elect a BDR.       Q202: What is the purpose of the Pseudonode ID?     Ans: The Pseudonode ID is the last octet of a LAN ID. Its purpose is to distinguish LAN IDs which are originated by a single router which is the DR on multiple LANs.       Q203: What is the maximum age (MaxAge) of an IS-IS LSP?     Ans: The MaxAge of an IS-IS LSP is 1200 seconds (20 minutes).