CCIE Enterprise Infrastructure
Domain 3Objective 1
Static Point-To-Point GRE Tunnels CCIE-ENTERPRISE-INFRASTRUCTURE Practice Questions (Page 4)
Part of the Transport Technologies and Solutions domain, which accounts for 15% of the CCIE-ENTERPRISE-INFRASTRUCTURE exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~8–12 in this domain), expect 3–4 from this objective — we provide 42 practice questions to prepare you well beyond it. (estimate)
42questions here
9free pages
4concepts
15%of the exam
Questions 16–20
- 16
A GRE tunnel is configured to carry multicast traffic. The tunnel is up/up, but multicast traffic is not being forwarded. What is the most likely cause?
Select an answer first - 17
A GRE tunnel is configured between two routers. The tunnel is up/up, but you cannot ping the remote tunnel IP. You have verified that the tunnel source and destination are correct, and the tunnel IPs are in the same subnet. You also see that the physical interfaces are up. You have also checked the routing table and there is a route to the remote tunnel IP. What is the next step?
Select an answer first - 18
After configuring a GRE tunnel between two routers, the tunnel interface is up/up, but you cannot ping the remote tunnel IP. Which command should you use first to verify whether the tunnel is actually passing traffic?
Select an answer first - 19
A GRE tunnel between two sites is not coming up. The tunnel source is configured as a loopback interface that is not advertised in the routing protocol. What is the most likely cause?
Select an answer first - 20
A company needs to connect two IPv6 networks over an IPv4-only WAN. They plan to use a GRE tunnel. What is the primary advantage of GRE in this scenario?
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