300-510 Online Practice Questions and Answers

Refer to the exhibit.

Which two commands must the engineer configure for the company's PIM-SM network to enable Auto-RP mappings to be sent over the FastEthernet0/0 interface, without affecting normal operation? (Choose two.)

A. enable auto-rp listener

B. enable sparse-mode

C. enable Auto-RP announcements

D. enable sparse-dense mode

E. enable dense mode

Which difference should be considered when intradomain or interdomain multicast routing is implemented?

A. Interdomain multicast routing relies on PIM-DM, and intradomain multicast routing relies on PIM-SM

B. Interdomain multicast routing uses BIDR-PIM to establish neighbor relationships between AS, and intradomain multicast routing uses MSDP

C. A network uses intradomain multicast routing without interdomain routing, but networks that use interdomain multicast routing must also apply intradomain routing

D. Interdomain multicast routing requires an IS-IS or OSPF neighbor relationship between the domains, but intradomain multicast routing requires only BGP

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.

What is the purpose of ACL type prefix set entries in RPL prefix sets?

A. They hold IPv4 or IPv6 prefixes that do not match specifications.

B. They hold IPv4 or IPv6 prefix match specifications.

C. They hold IPv6 prefix match specifications.

D. They hold IPv4 prefixes that do not match specifications.

An ISP has an MPLS VPN-based network with 12 PE routers.

How many peerings are required between the 12 routers if the engineer has not configured route reflectors?

A. 60

B. 66

C. 78

D. 84

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.

This network is deployed with all connected links configured to run IS- IS.

The routing protocol is enacted globally on each router, and the network engineer expects full routing Information to be shared among all routers. R5 is receiving routes from R4 but is missing routes from R1.

Which action corrects the issue so that all routes are shared among the routers?

A. Configure R5 in the same area as R1.

B. Configure all routers to reside in the same area.

C. Configure R1 and R5 as Level 1/Level 2 routers.

D. Configure R3 as a Level 1 /Level 2 router.

Refer to the exhibit.

An MPLS core network has connectivity issues R4 has failed. It impacts traffic loss between R1 and R8. Customers report no access to their file servers, which delays their transformation work. Which quick action resolves the issue until R4

recovers?

A. Implement Link and Node protection on routers R2 and R7.

B. Disable traffic engineering so that traffic prefers the IGP path

C. Enable MPLS fast reroute on router R1 and Link and Node protection on router R2.

D. Configure IBGP full mesh for faster convergence.

Refer to the exhibit.

An administrator is troubleshooting network issues on a customer's network PE1 cannot form an LDP relationship with PE2 using LDP ID 192 168.1.1. Due to this connectivity issue, the customer's routes behind both PE routers cannot be exchanged. Which action must the administrator take to correct the problem?

A. Configure PE2 to automatically select its own LDP router ID with 192.168.1.1.

B. Create a targeted LDP session on PE2 to override the missing routing table entry on PE1.

C. Configure PE1 with a static route to 192.168.1.1.

D. Enable LDP session protection on the link that P1 uses as the next hop to PE2.

A network engineer recently deployed a wireless network for users at a new office to join video conferences wirelessly. The existing network consists of routers that are configured for EIGRP and BGP, which are located at several data centers in different physical locations. The engineer configured PIM-SSM within a single domain from a single source. However, during the testing phase, the video conference failed to work for any of the users. The IPs are reachable and firewalls in the network are configured correctly to allow the traffic. Which action resolves the issue?

A. Configure PIM sparse mode to replace PIM-SSM.

B. Configure PIM dense mode to replace PIM-SSM.

C. Configure the devices to send join messages toward a multicast SPT.

D. Configure the devices to send join messages toward a multicast SPT.