Question: 1
When troubleshooting an EIGRP connectivity problem, you notice that two connected EIGRP routers are not becoming EIGRP neighbors. A ping between the two routers was successful. What is the next thing that should be checked?
A. Verify that the EIGRP hello and hold timers match exactly.
B. Verify that EIGRP broadcast packets are not being dropped between the two routers with the show ip EIGRP peer command.
C. Verify that EIGRP broadcast packets are not being dropped between the two routers with the show ip EIGRP traffic command.
D. Verify that EIGRP is enabled for the appropriate networks on the local and neighboring router.
Answer: D
Question: 2
Which IPsec mode will encrypt a GRE tunnel to provide multiprotocol support and
reduced overhead?
A. 3DES
B. multipoint GRE
C. tunnel
D. transport
Answer: D
Question: 3
Which three features are benefits of using GRE tunnels in conjunction with IPsec for
building site-to-site VPNs? (Choose three.)
A. allows dynamic routing over the tunnel
B. supports multi-protocol (non-IP) traffic over the tunnel
C. reduces IPsec headers overhead since tunnel mode is used
D. simplifies the ACL used in the crypto map
E. uses Virtual Tunnel Interface (VTI) to simplify the IPsec VPN configuration
Answer: A, B, D
Question: 4
Which statement is true about an IPsec/GRE tunnel?
A. The GRE tunnel source and destination addresses are specified within the IPsec
transform set.
B. An IPsec/GRE tunnel must use IPsec tunnel mode.
C. GRE encapsulation occurs before the IPsec encryption process.
D. Crypto map ACL is not needed to match which traffic will be protected.
Answer: C
Question: 5
You are troubleshooting an issue with a GRE tunnel between R1 and R2 and find that routing is OK on all intermediary routers. The tunnel is up on R1, but down on R2. Which two possible issues can prevent the tunnel from coming up? (Choose Two)
A. The tunnel does not come up unless traffic is sent through it.
B. The tunnel source interface is down on R2.
C. No specific route interface is down on R2.
D. R2 does not know how to reach the tunnel destination.
E. The tunnel keep-alive timer doesn¡¦t match on R1 and R2.
Answer: BD
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