IP-IP JN0-352 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   You are verifying an IP-IP tunnel on a Junos device. You run 'show interfaces ip-0/0/0.0' and see that the interface is 'up'. You also run 'show route 10.0.1.0/24' and see that the next hop is 'ip-0/0/0.0'. However, you cannot ping a device at 10.0.1.1 through the tunnel. What is the MOST LIKELY reason for this?

   • AThe ping packet is too large to be encapsulated and sent through the tunnel.
   • BThe tunnel source address is not reachable from the remote router.
   • CThe remote router does not have a route back to your network through its tunnel interface.
   • DThe tunnel interface on your router is not configured with an IP address.
   Reveal Solution Discussion Select an answer first
2. 7expert · hard

   You are designing a network for a company that has two sites connected by an IPv4-only MPLS WAN. Site A has an IPv6 network (2001:db8:1::/64) and Site B has an IPv6 network (2001:db8:2::/64). You need to connect these IPv6 networks. You have decided to use an IP-IP tunnel. However, you are concerned about the MTU size. The WAN link has an MTU of 1500 bytes. What is the MOST EFFECTIVE way to handle the MTU issue for the tunnel?

   • AIncrease the MTU on the WAN interface to 1520 bytes to accommodate the larger encapsulated packets.
   • BConfigure the tunnel to use GRE instead of IP-IP, which has a smaller header.
   • CDisable fragmentation on the tunnel interface and rely on the end hosts to handle MTU discovery.
   • DReduce the MTU on the tunnel interface to 1480 bytes to account for the additional IP-IP header.
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   Which operational command displays statistics for an IP-IP tunnel interface on a Junos device?

   • Ashow tunnel ip-0/0/0 statistics
   • Bshow interfaces ip-0/0/0 extensive
   • Cshow ip-ip tunnel status
   • Dshow route protocol tunnel
   Reveal Solution Discussion Select an answer first
5. 9expert · medium

   You are a network architect for a company that has two sites connected by a service provider that only offers IPv4 transport. You need to connect an IPv6 network at Site A to an IPv6 network at Site B. You are considering two options: an IP-IP tunnel and a GRE tunnel. What is the PRIMARY advantage of using an IP-IP tunnel over a GRE tunnel in this scenario?

   • AIP-IP tunnels provide built-in encryption, while GRE tunnels do not.
   • BIP-IP tunnels have lower overhead because they do not include a GRE header.
   • CIP-IP tunnels are easier to configure because they do not require a tunnel source and destination.
   • DIP-IP tunnels can carry multicast traffic, while GRE tunnels cannot.
   Reveal Solution Discussion Select an answer first
6. 10foundation · easy

   What does the 'show interfaces ip-0/0/0 terse' command display for an IP-IP tunnel?

   • ADetailed packet statistics, including input and output byte counts.
   • BThe routing table entries associated with the tunnel interface.
   • CThe tunnel source and destination addresses configured on the interface.
   • DA summary of the interface state, including whether it is up or down, and the configured IP address.
   Reveal Solution Discussion Select an answer first