Cisco 300-510 Free Practice Questions

NEW QUESTION 1

Refer to the exhibit. After troubleshooting an OSPF adjacency issue, routers 1, 2, and 3 have formed OSPF neighbor relationships. Which statement about the configuration is true?

• A. Router 2 receives a Type 5 LSAs from router 1 for its connected subnets
• B. Router 2 uses router 3 as the next hop for 192.168.0.0/24
• C. Router 2 uses router 1 as the next hop for 192.168.0.0/24
• D. Router 2 receives a Type 7 LSAs from router 3 for its connected subnets

Answer: A

NEW QUESTION 2

Refer to the exhibit. After troubleshooting BGP traffic steering issue, which action did the network operator take to achieve the correct effect of this configuration?

• A. Routes that have passed through AS 65517 have the local preference set to 150.
• B. Routes that have originated through AS 65517 have the local preference set to 150.
• C. Routes directly attached to AS 65517 have the local preference set to 150.
• D. Routes that have passed through AS 65517 have the local preference set to 150 and the traffic is denied.

Answer: A

NEW QUESTION 3
For which reason can two BGP peers fail to establish a neighbor relationship?

• A. Their BGP send-community strings are misconfigured
• B. Their BGP timers are mismatched
• C. Their remote-as numbers are misconfigured
• D. They are both activated under an IPv4 address family

Answer: C

NEW QUESTION 4
Which statement about BFD on Cisco IOS XR Software is true?

• A. Cisco IOS XR router must use LDP to route back to the Cisco IOS router to establish the peer relationship.
• B. Cisco IOS XR Software does not support BFD multihop for IPv4.
• C. Cisco IOS XR router must use dynamic routing or a static route back to the Cisco IOS router to establish the peer relationship.
• D. BFD is not compatible between Cisco IOS XR and Cisco IOS Software.

Answer: C

NEW QUESTION 5
You have configured MSDP peering between two autonomous systems that pass traffic between two sites, but the peering has failed to come up. Which task do you perform to begin troubleshooting the problem?

• A. Verify that multicast has been disabled globally
• B. Verify that PIM-DM is configured on the source interface
• C. Verify that both source interfaces are reachable from both peers
• D. Verify that the two MSDP peers allow asymmetric routing

Answer: C

NEW QUESTION 6

Refer to the exhibit. A network operator wants to expand the segment routing global block in upcoming maintenance. The operator must ensure that the changes to the segment routing global block have no adverse impacts on the prefix-sid associated with the loopback0 interface used within the OSPF domain. Which command can the operator use to enforce R2 to have a strict prefix-sid assignment to loopback0? A.

• A. A.B.
• B.
• C.

Answer: C

NEW QUESTION 7
Which two characteristics unique to SSM when compared to ASM are true? (Choose two.)

• A. It uses SPT switchover
• B. It uses (*,G) exclusively
• C. It uses IGMPv3
• D. It uses RP
• E. It uses (S,G) exclusively

Answer: CE

NEW QUESTION 8
An engineer is troubleshooting a connectivity issue across the MPLS network and is verifying the forwarding behavior of packets. Which table does the engineer look at to verify the forwarding behavior of an IP packet as it enters the MPLS network at the ingress LSR?

• A. LFIB
• B. LIB
• C. RIB
• D. FIB

Answer: A

NEW QUESTION 9

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

Answer: B

NEW QUESTION 10
Which task is performed when troubleshooting LDP?

• A. Execute the ping utility to generate information about the MAC addresses used along the path
• B. Verify that MPLS is disabled globally and enabled on the necessary interfaces in a per-interface basis
• C. Execute the traceroute utility to generate information about the labels used along the path
• D. Verify that Cisco Express Forwarding has been disabled on the network

Answer: C

NEW QUESTION 11
A network engineer is troubleshooting OSPF multiarea. Which Cisco IOS XR feature should the engineer use in order to streamline OSPF issue?

• A. hierarchical CLI
• B. DR support for topology management
• C. routing process enabled by default on all interfaces
• D. show ip ospf topology command

Answer: A

NEW QUESTION 12

Refer to the exhibit. R1 is directly connected to R2 and R3. R1 is in BGP AS 123, R2 is in BGP AS 2, and R3 is in BGP AS 3. Assume that there is no connectivity issue between R1, R2 and R1, R3. Which result between BGP peers R1, R2 and R1, R3 is true?

• A. The BGP session does not come up between R1 and R2 and between R1 and R3.
• B. The BGP session comes up between R1 and R2 and between R1 and R3.
• C. The BGP session comes up between R1 and R3, but not between R1 and R2.
• D. The BGP session comes up between R1 and R2, but not between R1 and R3.

Answer: B

NEW QUESTION 13
After you change the IP address on an IOS XR router, you cannot ping the new address.
Which step did you forget to complete?

• A. commit the configuration
• B. roll back the configuration
• C. merge the configuration
• D. save the running configuration

Answer: A

NEW QUESTION 14
Which cost is the default when redistributing routes from BGP to OSPF?

• A. 20
• B. 1
• C. infinite
• D. automatic

Answer: B

NEW QUESTION 15

Refer to the exhibit. A network operator is working to filter routes from being advertised that are covered under an aggregate announcement. The receiving router of the aggregate announcement block is still getting some of the more specific routes plus the aggregate. Which configuration change ensures that only the aggregate is announced now and in the future if other networks are to be added?

• A. Configure the summary-only keyword on the aggregate command
• B. Set each specific route in the AGGRO policy to drop instead of suppress-route
• C. Filter the routes on the receiving router
• D. Set each specific route in the AGGRO policy to remove instead of suppress-route

Answer: A

NEW QUESTION 16
DRAG DROP
Drag and drop the attributes for the BGP route selection on the left into the correct order on the right. Not all options are used.
Select and Place:

• A. Mastered
• B. Not Mastered

Answer: A

NEW QUESTION 17
Which two conditions must be met before separate ISPs can provide interdomain multicast routing? (Choose two.)

• A. Each ISP must configure MSDP to connect its individual multicast administrative domain to the domains at other ISPs.
• B. Each ISP must dedicate a single router to handle multicast traffic between providers.
• C. Each ISP must replace its RP assignment with a global RP.
• D. Each ISP must configure its network to use PIM-DM.
• E. Each ISP must support intradomain multicast routing.

Answer: AE

NEW QUESTION 18
Which statement about enabling segment routing for IGPs is true?

• A. Segment routing must first be enabled under then routing process and then globally
• B. Segment routing must first be enabled globally and then under the routing process
• C. Segment routing can be enabled only under the routing process
• D. Segment routing can be enabled only globally

Answer: B

NEW QUESTION 19
Refer to the exhibit. Routers R1 and R2 cannot form a neighbor relationship, but the network is otherwise configured correctly and operating normally. Which two statements describe the problem? (Choose two.)

• A. The two routers are in the same area
• B. The two routers are in different subnets
• C. The two routers have password mismatch issues
• D. The two routers have the same network ID
• E. The two routers are in different areas

Answer: BE

NEW QUESTION 20
Refer to the exhibit. Which attribute can router 1 alter so that only other iBGP peers prefer to use 192.168.4.2 as the next hop for route 192.168.3.0/24?

• A. MED
• B. local preference
• C. origin
• D. weight

Answer: A

NEW QUESTION 21
Refer to the exhibit. Which task must you perform on interface g1/0/0 to complete the SSM implementation?

• A. configure OSPFv3
• B. enable CDP
• C. disable IGMP
• D. configure IGMPv3

Answer: D

NEW QUESTION 22
For which reason can two devices fail to establish an OSPF neighbor relationship?

• A. The two devices have different process IDs
• B. The two devices have different network types
• C. The two devices have different router IDs
• D. The two devices have the same area ID

Answer: B

NEW QUESTION 23

Refer to the exhibit. A network operator is getting the route for 10.11.11 0/24 from two upstream providers on #XR3. The network operator must configure #XR3 to force the 10.11.11.0/24 prefix to route via next hop of 10.0.0.9 as primary when available. Which of these can the operator use the routing policy language for, to enforce this traffic forwarding path?

• A. weight of 0 on the prefix coming from 192.168.0.2
• B. lower local preference on the prefix coming from 192.168.0.2
• C. higher local preference on the prefix coming from 192.168.0.1
• D. weight of 100 on the prefix coming from 192.168.0.1

Answer: C

NEW QUESTION 24
Which two statements about mapping multicast IP addresses to MAC addresses are true? (Choose two.)

• A. All mapped multicast MAC addresses begin with 0x0100.5E
• B. The router performs the mapping before it hands the packet off to a switch
• C. All multicast MAC addresses end with 0x0100.5E
• D. The mapping process may generate overlapping addresses, which can cause receivers to receive unwanted packets
• E. All destination MAC addresses begin with an octet of binary 1s

Answer: AD

NEW QUESTION 25
Which command is used to enable BIDIR-PIM under global configuration mode for Cisco IOS XE Sofware?

• A. ip pim bidir-enable
• B. ipv4 pim bidir-enable
• C. ip multicast-routing
• D. ip pim bidir

Answer: A

NEW QUESTION 26
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