1-In an IS-IS environment, what happens when the designated IS router crashes?
A. The elected backup designated router takes the place of the DIS indefinitely without
the necessity of a new election.
B. The elected backup designated router takes the place of the DIS indefinitely without
the necessity of a new election, until the original DIS comes back online.
C. A new election process occurs immediately, establishing a new DIS until a router
with a higher priority or MAC address establishes an adjacency.
D. A new election process occurs immediately, establishing a new DIS that will remain
in place indefinitely.
Actualtests Answer: C
Pass4sure Answer: D
There is no backup designated router in IS-IS. Therefore, if the DIS meets an untimely
death, a new DIS would be elected, based on prority or highest MAC address. If another
router comes online with a higher priority, it will dislodge the existing DIS and rule in
its place. This behavior is different from that of OSPF. Once a new DIS is elected, the
link-state databases are purged and new LSPs are flooded.
2-Given the following configuration:
router bgp 6500
ip route 22.214.171.124 255.255.0.0 null 0
which statement is true?
A. It allows BGP to advertise the 126.96.36.199/16 network
B. It results in all traffic for all subnets of 172.16.0.0 being dropped at this router
C. Cisco prefers that you use the aggregate-address command to distribute IGP routes
D. Cisco prefers this method of distributing IGP routes into BGP over using the network
Pass4sure Answer: A
Actualtests Answer: C
Redistribution of static routes configured to the null 0 interface into BGP is done to
advertise aggregate routes rather than specific routes from the IP table. However, Cisco
recommends the use of the aggregate-address-command instead.
3-Based on the exhibited command output, which two statements are true? (Choose two)
A. The EIGRP network is stable.
B. The router at 10.1.1.3 has not replied to the CK1 query packet.
C. The route to 172.19.0.0/16 is undergoing recomputation.
D. The route to 172.19.0.0/16 is stuck-in-active.
E. R1 has sent a query packet to 10.1.1.2.
Actualtests Answer: B, C
Pass4sure Answer: C, E
The output shown above is a snapshot from an EIGRP router re-computing the route to d
172.19.0.0/16. As can be seen above, a query was originated by CK1 to the neighbor at
10.1.1.3, but the query has not yet been replied to by this router.[/b][/b]