What is the purpose of GRE keepalives?

To increase the tunnel's bandwidth

To detect whether the remote tunnel endpoint is reachable

A GRE tunnel is configured between two routers. The tunnel is passing IPv4 traffic correctly, but you need to also carry IPv6 traffic over the same tunnel. What must you do?

Enable IPv6 on the physical interface only.

Configure a second GRE tunnel for IPv6 traffic.

Add an IPv6 address to the existing tunnel interface.

Change the tunnel protocol to IPv6.

You are configuring a GRE tunnel on a Junos router. The tunnel will be used to connect two remote sites over the Internet. You want to ensure that the tunnel interface is always up, even if the remote site is temporarily unreachable. What should you do?

Configure the tunnel source as the loopback interface.

Configure the tunnel destination as the remote site's loopback address.

Configure a static route to the remote site's IP address via the tunnel.

Do not configure keepalives on the tunnel interface.

Which of the following is a known limitation of GRE?

It requires a dedicated physical link

It cannot carry multicast traffic

Juniper NetworksCertified Specialist, Service Provider Routing and Switching (JNCIS-SP)

Domain 9Objective 2

Generic Routing Encapsulation (GRE) JN0-364 Practice Questions (Page 3)

Part of the Tunnels domain, which makes up ~4% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~1–2 in this domain), expect 1–1 from this objective — we provide 19 practice questions to prepare you well beyond it. (estimate)

19questions here

4free pages

8concepts

Questions 11–15

11foundation · easy
What is the purpose of GRE keepalives?
Select an answer first
12expert · medium
A GRE tunnel is configured between two routers. The tunnel is passing IPv4 traffic correctly, but you need to also carry IPv6 traffic over the same tunnel. What must you do?
Select an answer first
13application · medium
You are configuring a GRE tunnel on a Junos router. The tunnel will be used to connect two remote sites over the Internet. You want to ensure that the tunnel interface is always up, even if the remote site is temporarily unreachable. What should you do?
Select an answer first
14foundation · easy
Which field in the GRE header indicates the protocol of the encapsulated payload?
Select an answer first
15foundation · easy
Which of the following is a known limitation of GRE?
Select an answer first

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