300-410 Online Practice Questions and Answers

Refer to the exhibit.

An IP SLA was configured on router R1 that allows the default route to be modified in the event that Fa0/0 loses reachability with the router R3 Fa0/0 interface. The route has changed to flow through router R2.

Which debug command is used to troubleshoot this issue?

A. debug ip flow

B. debug ip sla error

C. debug ip routing

D. debug ip packet

Which protocol does VRF-Lite support?

A. S-IS

B. ODR

C. EIGRP

D. IGRP

Refer to the exhibit. The DHCP client is unable to receive an IP address from the DHCP server. RouterB is configured as follows:

Which command is required on the fastethernet 0/0 interface of RouterB to resolve this issue?

A. RouterB(config-if)#lp helper-address 172.31.1.1

B. RouterBiconfig-ififclp helper-address 255.255 255 255

C. RouterB(config-if)#lp helper-address 172.16.1.1

D. RouterB(config-if)#lp helper-address 172.16.1.2

Refer to the exhibit.

An engineer has configured policy-based routing and applied the configured to the correct interface. How is the configuration applied to the traffic that matches the access list?

A. It is dropped

B. It is forwarded using the routing table lookup

C. It is sent to 209.165.202.131.

D. It is sent to 209.165.202.129.

You manage the EIGRP subnet in your organization. You have enabled EIGRP for IPv6 on all the routers in the EIGRP AS 355 using the following commands on all the routers: The ipv6 unicast-routing command in global configuration mode The interface command in global configuration mode The ipv6 enable command in interface configuration mode The ipv6 eigrp command in interface configuration mode The ipv6 router eigrp command in global configuration mode The eigrp router-id command in global configuration mode During verification, you discover that EIGRP for IPv6 is not running on the routers. Which of the following should be done to fix the issue?

A. The ipv6 address command should be executed in interface configuration mode.

B. The ipv6 address command should be executed in router configuration mode.

C. The eigrp router-id command should be executed in interface configuration mode.

D. The eigrp router-id command should be executed in router configuration mode.

Refer to the exhibit. The administrator noticed that the connection was flapping between the two ISPs instead of switching to ISP2 when the ISP1 failed. Which action resolves the issue?

A. Include a valid source-interface keyword in the icmp-echo statement.

B. Reference the track object 1 on the default route through ISP2 instead of ISP1.

C. Modify the static routes to refer both to the next hop and the outgoing intertace.

D. Modify the threshold to match the administrative distance of the ISP2 route.

Refer to the exhibit.

An engineer must configure DMVPN Phase 3 hub-and-spoke topology to enable a spoke-to-spoke tunnel.

Which NHRP configuration meets the requirement on R6?

A. interface Tunnel1 ip nhrp authentication Cisco123 ip nhrp map multicast dynamic ip nhrp network-id 1 ip nhrp holdtime 300 ip nhrp redirect

B. interface Tunnel 1 ip address 192.168.1.1 255.255.255.0 tunnel source e 0/1 tunnel mode gre multipoint ip nhrp network-id 1 ip nhrp map 192.168.1.2 192.1.20.2

C. interface Tunnel1 ip nhrp authentication Cisco123 ip nhrp map multicast dynamic ip nhrp network-id 1 ip nhrp holdtime 300 ip nhrp shortcut

D. Interface Tunnel 1 ip address 192.168.1.1 255.255.255.0 tunnel source e 0/0 tunnel mode gre multipoint ip nhrp network-id 1

An engineer configured routing between multiple OSPF domains and introduced a routing loop that caused network instability. Which action resolves the problem?

A. Set a tag using the redistribute command toward a domain and deny inbound in the other domain by a matching tag.

B. Set a tag using the redistribute command toward a different domain and deny the matching tag when exiting from that domain.

C. Set a tag using the network command in a domain and use the route-map command to deny the matching tag when exiting toward a different domain.

D. Set a tag using the network command in a domain and use the route-map command to deny the matching tag when entering into a different domain.

Refer to the exhibit.

A network engineer is adding a new spoke router into an existing DMVPN Phase 3 tunnel with a hub router to provide secure communication between sites. Which additional configuration must the engineer apply to enable the tunnel to come up?

A. ip nhrp registration no-unique

B. ip nhrp server-only non-caching

C. ip nhrp responder tunnel

D. ip nhrpnhs 172.23.5.1

What is the function of penultimate hop popping?

A. The last P router in the path pops off the transport label before traffic is forwarded toward the PE.

B. The VPN label is popped off at the egress LSR, and unlabeled traffic is forwarded toward the CE.

C. The transport label is popped off at the egress LSR, and unlabeled traffic is forwarded toward the CE.

D. The second to last P router in the path pops off the VPN label before traffic is forwarded to the last P router.