IP Routing Questions

Question 1

Refer to the exhibit.

R1 ! interface FastEthernet0/0 description TO R2 ip address 172.17.17.1 255.255.255.128 ! interface FastEthernet0/1 description TO R3 ip address 10.17.12.1 255.255.255.0 ! ip route 172.29.168.3 255.255.255.255 172.17.17.2 ! router eigrp 10 no auto-summary network 172.17.17.0 0.0.0.127 network 10.17.12.0 0.0.0.255

R2 interface FastEthernet0/0 description TO R1 ip address 172.17.17.2 255.255.255.128 ! ip route 0.0.0.0 0.0.0.0 172.17.17.1 ! router eigrp 10 no auto-summary network 172.17.17.0 0.0.0.255

R3 ! interface loopback0 ip address 172.29.168.3 255.255.255.255 ! interface FastEthernet0/0 description TO R1 ip address 10.17.12.3 255.255.255.128 ! router eigrp 10 no auto-summary network 172.29.168.3 0.0.0.0 network 10.17.12.3 255.255.255.0 !

Routers R1, R2, and R3 are configured as shown, and traffic from R2 fails to reach 172.29.168.3. Which action can you take to correct the problem?

A. Correct the static route on R1.
B. Correct the default route on R2.
C. Edit the EIGRP configuration of R3 to enable auto-summary.
D. Correct the network statement for 172.29.168.3 on R3.

Answer: A

Explanation

On R1 we see there is a wrongly configured static route : ip route 172.29.168.3 255.255.255.255 172.17.17.2. It should be ip route 172.29.168.3 255.255.255.255 10.17.12.3.

Question 2

Refer to the exhibit.

Video Source S is sending interactive video traffic to Video Receiver R. Router R1 has multiple routing table entries for destination R. Which load-balancing mechanism on R1 can cause out-of-order video traffic to be received by destination R?

A. per-flow load balancing on R1 for destination R
B. per-source-destination pair load balancing on R1 for destination R
C. CEF load balancing on R1 for destination R
D. per-packet load balancing on R1 for destination R

Answer: D

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