Deploying Cisco Service Provider Network Routing (SPROUTE): 642-883 Exam
642-883 Questions & Answers
Exam Code: 642-883
Exam Name: Deploying Cisco Service Provider Network Routing (SPROUTE)
Q & A: 82 Q&As
Which OSPF feature allows a router with redundant route processors to maintain its OSPF state
and adjacencies across planned and unplanned RP switchovers and does this by checkpointing
state information from OSPF on the active RP to the standby RP? This feature does not require
the OSPF neighbor to support graceful restart.
Which two statements regarding OSPFv2 or OSPFv3 authentication are correct? (Choose two.)
A. OSPFv2 supports MD5 authentication.
B. OSPFv2 supports MD5 or SHA authentication.
C. OSPFv2 relies on the native security stack that uses IPsec.
D. OSPFv3 supports MD5 authentication.
E. OSPFv3 supports MD5 or SHA authentication.
F. OSPFv3 relies on the native security stack that uses IPsec.
What are three common problems that can cause a BGP neighbor state to toggle between the idle
state and the active state? (Choose three.)
A. BGP network command misconfiguration
B. route policy misconfiguration
C. AS number misconfiguration
D. route map misconfiguration
E. BGP neighbor peering to wrong IP address
F. IGP routing problem: not able to reach the source IP address of the BGP open packet
In an AS with 10 routers running IBGP, how many IBGP sessions will be required to establish fully
meshed IBGP peerings?
You are implementing OSPF as the IGP using a single OSPF area design. The router memory
usage for OSPF is too high. Which two methods can lower the OSPF memory usage? (Choose
A. enable OSPF synchronization
B. implement multi-area OSPF
C. enable OSPF sham links to reduce the number of LSAs
D. implement route summarization on the ABRs
E. enable route leaking between Level 1 and Level 2 areas
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