300-410 Free Practice Test

- (Exam Topic 3)
Refer to the exhibit. The ISP router is fully configured for customer A and customer B using the VRF-Lite feature. What is the minimum configuration required for customer A to communicate between routers A1 and A2?

1. A. A1interface fa0/0 description To->ISPip add 172.31.100.1 255.255.255.0no shut!router ospf 100net 172.31.100.1 0.0.0.255 area 0 A2interface fa0/0 description To->ISPip add 172.31.200.1 255.255.255.0no shut!router ospf 100net 172.31.200.1 0.0.0.255 area 0
2. B. A1interface fa0/0 description To->ISP ip vrf forwarding Aip add 172.31.100.1 255.255.255.0no shut!router ospf 100net 172.31.100.1 0.0.0.255 area 0 A2interface fa0/0 description To->ISP ip vrf forwarding Aip add 172.31.200.1 255.255.255.0no shut!router ospf 100net 172.31.200.1 0.0.0.255 area 0
3. C. A1interface fa0/0 description To->ISPip add 172.31.200.1 255.255.255.0no shut!router ospf 100net 172.31.200.1 0.0.0.255 area 0 A2interface fa0/0 description To->ISPip add 172.31.100.1 255.255.255.0no shut!router ospf 100net 172.31.100.1 0.0.0.255 area 0
4. D. A1interface fa0/0 description To->ISP ip vrf forwarding Aip add 172.31.100.1 255.255.255.0no shut!router ospf 100 vrf Anet 172.31.200.1 0.0.0.255 area 0 A2interface fa0/0 description To->ISP ip vrf forwarding Aip add 172.31.100.1 255.255.255.0no shut!router ospf 100 vrf Anet 172.31.200.1 0.0.0.255 area 0

Correct Answer: C
A1 and A2 routers do not know they belong to VRF A. The two
interfaces of ISP (which are connected to A1 & A2) should be configured like this (we only show the configure of one interface):
ISP router:
interface g0/0
description ISP->To_CustomerA ip vrf forwarding A
ip address 172.31.100.2 255.255.255.0
router ospf 100 vrf A
network 172.31.200.2 0.0.0.255 area 0

- (Exam Topic 3)

Refer to the exhibit. Router R4 is configured correctly with default OSPF values. A network engineer configured R7 for OSPF. R7 must not be elected as a DR for the segment between R4-R7. The adjacency between R4 and R7 failed to form. Which configuration resolves the issue?

1. A. Option A
2. B. Option B
3. C. Option C
4. D. Option D

Correct Answer: C

- (Exam Topic 2)
Refer to the exhibit.

The network administrator configured redistribution on an ASBR to reach to all WAN networks but failed Which action resolves the issue?

1. A. The route map must have the keyword prefix-list to evaluate the prefix list entries
2. B. The OSPF process must have a metric when redistributing prefixes from EIGRP.
3. C. The route map EIGRP->OSPF must have the 10.0.106.0/24 entry to exist in one of the three prefix lists to pass
4. D. EIGRP must redistribute the 10.0.106.0/24 route instead of using the network statement

Correct Answer: A
In order to use a prefix-list in a route-map, we must use the keyword “prefix-list” in the “match” statement. . For example:
match ip address prefix-list WAN_PREFIXES
Without this keyword, the router will try to find an access-list with the same name instead.

- (Exam Topic 3)
A network administrator successfully established a DMVPN tunnel with one hub and two spokes using EIGRP. One of the requirements was to enable spoke-to-spoke tunnels through the hub router using EIGRP. Which configuration command must the engineer configure to meet the requirement?

1. A. no ip eigrp 1 mode multipoint
2. B. no ip eigrp 1 split-horizon
3. C. no ip eigrp 1 tunnel-redirect
4. D. no ip eigrp 1 mode mgre

Correct Answer: B

- (Exam Topic 3)
Refer to the exhibit.

Routers R1 and R2 have established a network adjacency using EIGRP, and both routers are advertising subnets to its neighbor. After issuing the show ip EIGRP topology all-links command in R1, some prefixes are no showing R2 as a successor. Which action resolves the issue?

1. A. Rectify the incorrect router ID in R2.
2. B. Enable split-horizon.
3. C. Configure the network statement on the neighbor.
4. D. Resolve the incorrect metric on the link.

Correct Answer: D