300-510 Online Practice Questions and Answers

Refer to the exhibit.

Router 1 is a core ABR in a Cisco Unified MPLS environment. All of the router 1 BGP peers are established, but traffic between customers is failing. Which BGP configuration must be added to the configuration?

A. It must be configured for graceful restart

B. It must be configured with a route reflector

C. It must be configured with send labels

D. It must be configured with PIC edge

Refer to the exhibit.

Routers within the cluster are not receiving the desired prefixes. What must be done to fix the issue?

A. Clients in that cluster must have full mesh connectivity between eBGP peers.

B. No client-to-client must be disabled.

C. Clients in that cluster must have full mesh connectivity between iBGP peers.

D. No client-to-client reflection must be enabled.

What are three requirements for a static IPv6-in-IPv4 tunnel? (Choose three.)

A. A static IPv6 address must be configured.

B. A dynamic IPv6 address must be configured.

C. Cisco Express Forwarding must be enabled.

D. Each tunnel endpoint must support IPv4 and IPv6.

E. A static IPv4 address must be configured.

F. A dynamic IPv4 address must be configured.

Refer to the exhibit.

A network engineer just replaced five routers on this OSPF network. When the routing protocol is brought up, R5 cannot reach routes that originate on R1.

The engineer verified that all connected links have established neighbor relationships. R5 reaches routes originating on R3 and R4.

Which action resolves the issue?

A. Configure an OSPF virtual link to bridge Area 0 on routers R3 and R4.

B. Configure automatic neighbor discovery on RI and R5.

C. Configure OSPF to have a contiguous Area O.

D. Configure each link to be point-to-point.

Refer to the exhibit.

Customer A is a small media company with two offices connected by a 512 Kbps line. Their NY office is connected to several external partners by static routes on router R3.

VoIP services use VoIP codec G729 Users reported poor voice quality and slow data transfer between the offices A network engineer configured ip tcp header- compression iphc-format on R2 and R3 routers

Which additional action must the engineer take to fix the issue?

A. Configure the ip ospf I area O command under Serial 1/1 interfaces on R2 and R3 to avoid routing loops

B. Change the OSPF router ID on either router so that the router IDs are unique.

C. Configure the summary-address 10.10.0.0 255.255.240.0 command on R3 to optimize OSPF communication

D. Configure the BGP routing protocol between R2 and R3 to control route propagation.

Refer to the exhibit.

P1 and PE3 Cisco IOS XR routers are directly connected and have this configuration applied.

The BGP session is not coming up.

Assume that there is no IP reachability problem and both routers can open tcp port 179 to each other.

Which action fixes the issue?

A. Change HMAC-MD5 to HMAC-SHA1-20

B. Configure the send and accept lifetime under key 1

C. Change HMAC-MD5 to MD5

D. Change HMAC-MD5 to HMAC-SHA1-12

Refer to the exhibit.

Customers A and C are experiencing packet drops when connecting to the application server While troubleshooting the problem the network engineer confirms that the IS-lS Level-1/2 adjacency is up between routers A B C. and D and both customers can communicate with the database server without packet loss Which action must the engineer take to resolve the issue?

A. Advertise the application server subnet in the router D IS-IS database

B. Advertise a static default route to the router B IS-IS database.

C. Leak the 172, 17.10/24 route in the IS-IS databases on routers A and C.

D. Leak the customer A and customer C subnets in the router A IS-IS database.

Refer to the exhibit.

.

R1 is expected to receive routes originating from AS 65516 and from any ASs that are directly attached to it. However, R1 is receiving routes only from AS 65516. Which action corrects the configuration?

A. Change the regular expression in the AS-path permit filter to .*.

B. Change the regular expression in the AS-path permit filter to ^65516_[0-9]*$.

C. Add the regular expression ^$. in the AS-path filter to permit the traffic from R2.

D. Change the regular expression in the AS-path permit filter to _65516_.

CORRECT TEXT

Guidelines

This is a lab item in which tasks will be performed on virtual devices.

1.

Refer to the Tasks tab to view the tasks for this lab item.

2.

Refer to the Topology tab to access the device console(s) and perform the tasks.

3.

Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.

4.

All necessary preconfigurations have been applied.

5.

Do not change the enable password or hostname for any device.

6.

Save your configurations to NVRAM before moving to the next item.

7.

Click Next at the bottom of the screen to submit this lab and move to the next question.

8.

When Next is clicked, the lab closes and cannot be reopened.

Topology

Tasks

Configure and verify an OSPF neighbor adjacency between R1 and R2 in OSPF area 0 according to the topology to achieve these goals:

1.

R1 pings the Loopback0 interface of R2. Use interface-level configuration to complete this task.

2.

R2 pings the Loopback0 interface of R1. Use interface-level configuration to complete this task.

3.

R2 receives a single summary route 172.16.100.0/22 for networks 172.16.100.0/24, 172.16.101.0/24, and 172.16.103.0/24.

A. Check the answer in the explanation

B. Placeholder

C. Placeholder

D. Placeholder

DRAG DROP

Drag and drop the features from the left into the order of operations for SRv6 SRH field creation and forwarding on the right.

Select and Place: