Current 300-510 Exam Dumps [2025] Complete Cisco Exam Smoothly
300-510 Premium PDF & Test Engine Files with 291 Questions & Answers
Cisco 300-510 Exam Syllabus Topics:
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NEW QUESTION # 50
Refer to the exhibit.
All routers on this network have been configured with P1M-SM and R1 is the rendezvous point However, when asymmetric routing is implemented to modify link usage the network begins to drop certain multicast traffic Which action corrects the problem?
- A. Add a static Mroute for routes that are failing.
- B. Remove the asymmetric routing and use spanning tree to manage link usage.
- C. Place the routes affected by asymmetric routing in a VRF.
- D. Configure the routers to use PIM-DM instead of PIM-SM.
Answer: C
NEW QUESTION # 51 
Refer to the exhibit. A network engineer is investigating a report of packet drops in an application running on a server connected to PE2 The engineer determined that:
* The OSPF adjacency in area 0 is up. and it is learning the loopback addresses of all routers in area 0.
* Traffic from users connected to PE1 to the application is also passing normally.
* Packets from PE2 back to PE1 are being dropped
Which action resolves the issue?
- A. Option C
- B. Option B
- C. Option A
- D. Option D
Answer: A
NEW QUESTION # 52
Refer to the exhibit. CE1 and CE2 are iBGP neighbors in AS 65516. All traffic that exits AS 65516 must use the link from CE1 to PE1. CE1 is advertising a higher local preference to CE2, but traffic from CE2 still prefers the PE2 link. Which action corrects the problem?
- A. Configure CE1 to send routes to CE2 with a higher weight.
- B. Configure CE1 to send routes to CE2 with a higher MED.
- C. Add the next-hop self command to the CE1 neighbor statement for CE2.
- D. Add the lower local-preference value on PE2 towards CE2.
Answer: D
Explanation:
https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13753-25.html
NEW QUESTION # 53
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 two actions fix the issue? (Choose two.)
- A. Change MD5 to HMAC-SHA1-12
- B. Remove the send and accept lifetime under key 1
- C. Change MD5 to HMAC-ESP
- D. Change MD5 to SHA-1
- E. Change MD5 to HMAC-MD5
Answer: A,E
NEW QUESTION # 54
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 PE1 with a static route to 192.168.1.1.
- B. Create a targeted LDP session on PE2 to override the missing routing table entry on PE1.
- C. Configure PE2 to automatically select its own LDP router ID with 192.168.1.1.
- D. Enable LDP session protection on the link that P1 uses as the next hop to PE2.
Answer: A
NEW QUESTION # 55
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 # 56
Refer to the exhibit. After configuring IS-IS on routers R1 and R2, an engineer notices that only the loopback interface at 2000:1::1 /96 is known to router R2. Which change must be made so that only Loopback2 is advertised from R1 to R2?
- A. Configure the router isis area1 command under the Loopback0 interface on R1.
- B. Remove the advertise passive-only command under the IS-IS address family ipv6 configuration
- C. Remove the ipv6 router isis area1 command under the Loopback2 interface on R1.
- D. Remove the passive-interface Loopback0 command under the router isis area1 configuration.
Answer: C
NEW QUESTION # 57
Refer to the exhibit.
A network engineer applied configuration on R5 to summarize all OSPF routes, but R4 is still receiving specific routes from R5. The engineer has confirmed that both R5 and R4 routers are configured with correct summarization configuration but R5 Is not sending the summary routes What action must the engineer take to fix the problem?
- A. Move R4 and R5 in separate areas as now they maintain the same link-state database
- B. Configure a sham link between R4 and R5 to support summarization within Area 2
- C. Clear link-state database on both R4 and R5 routers for summarization to work
- D. Remove summarization configuration on R5 and configure it on R4
Answer: A
NEW QUESTION # 58
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. LIB
- B. RIB
- C. FIB
- D. LFIB
Answer: D
Explanation:
https://community.cisco.com/t5/image/serverpage/image-id/44142iC3B9032F415B1395?v=v2
NEW QUESTION # 59 
Refer to the exhibit. XR1 and XR2 are sending the prefix 10.11.11.0/24 to XR3. A configured policy on XR1 is incorrectly prepending AS path 11 11 12 12 onto this prefix. A network operator wants to add a policy onto XR3 that will not allow the falsely prepending prefix from being installed. Which policy configuration applied to the XR3 neighbor configuration for XR1 can accomplish this requirement without impact to other or future received routes?
- A.
- B.
- C.
- D.
Answer: D
Explanation:
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-1/routing/command/reference/ b_routing_cr41crs/b_routing_cr41crs_chapter_01000.html#wp3850885229
NEW QUESTION # 60
A network engineer is troubleshooting OSPF multiareA. Which Cisco IOS XR feature should the engineer use in order to streamline OSPF issue?
- A. routing process enabled by default on all interfaces
- B. show ip ospf topology command
- C. hierarchical CLI
- D. DR support for topology management
Answer: C
NEW QUESTION # 61
Refer to the exhibit.
Refer to the exhibit. Network connectivity between bank A and bank B has been lost Users at bank A and bank B are able to successfully reach their directly connected PE routers. All routers in OSPF area 0 are correctly advertising and learning routing updates. Which action resolves the issue?
- A. Configure router PI to advertise the IP prefix of PEI.
- B. Configure the P routers to redtstnbute BGP routes within OSPF area 0.
- C. Enable next-hop-self under the iBGP peering configuration on routers PEI and PE2
- D. Configure MPLS with an end-to-end label-switched path on each router.
Answer: D
NEW QUESTION # 62
Refer to the exhibit.
CE1 is the gateway router into the provider network via PE1. A network operator must inject a default route into OSPF area 0. All devices inside area 0 must be able to reach PE1. Which configuration achieves this goal?
- A. Option C
- B. Option B
- C. Option A
- D. Option D
Answer: A
NEW QUESTION # 63 
Refer to the exhibit The branch office in area 10 is connected to HQ via Frame Relay uplinks with bandwidth constraints After a recent implementation of QoS on the R2 and R3 networks the system has been logging % SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x224E321, alignment 0 messages To reduce traffic load and memory utilization on R2 and R3 the network engineer configured R1 to announce only one user subnet per location by issuing the summary address 192.168.0.0 255.255.248.0 command en R1 However, the engineer noticed that router R2 still has two routes and a summary address from HQ and R3 also has two routes from HQ Which two actions must the engineer take on R1 to fix the issue so that only one route is announced' (Choose two.)
- A. Configure a summary route for Level 1 devices.
- B. Configure a summary route for Level 1-Level 2 devices.
- C. Configure the subnet range with the network command under the IS-IS process.
- D. Configure RI as a Level 1 device.
- E. Redistribute both routes into the ISIS process.
Answer: A,B
NEW QUESTION # 64
Refer to the exhibit. R1 is sending data traffic to R6 using the same SRGB range as the other routers in the topology, but it is also using a non-default SRLB range. Which two configuration tasks must the engineer perform to enable normal SRGB and SRLB operations on this network? (Choose two.)
- A. Configure router R2 with adjacency SID 4002 to enable it to reach R4.
- B. Set the SRGB range to 1002 to 6005
- C. Set the default SRGB range to 16000 to 23999.
- D. Configure an adjacency SID from SRLB range 1002 to 6005.
- E. Configure router R1 with adjacency SID 1003 tcPegable it to reach R2.
Answer: C,D
NEW QUESTION # 65
Refer to the exhibit. Routers R1, R2, R3, and R4 have been configured to run OSPF, and router R5 is running EIGRP. Traffic from R1 to R5 is expected to pass via R4, but OSPF routing has calculated the best path R3. Which action corrects the problem?
- A. Configure R3 to use metric-type 1 with a higher metric than R4.
- B. Change the metric-type value on R3 to 2.
- C. Configure R1 with a static route to the R5 networks and set R5 as the next hop.
- D. Reconfigure R1 in Area 0.
Answer: B
NEW QUESTION # 66
Refer to the exhibit.
Routers RA and RB are IS-IS peers configured for NSF but router RC is an IS-IS peer without NSF capability If RA undergoes processor switchover what is the effect on the network environment?
- A. All peer relationships remain up, but the link-state database is rebuilt on each device
- B. All peer relationships remain up and the link-state database is unchanged
- C. If RC is operating without the Cisco configuration option only 2 routers tear down their peering relationships and re-establish peering
- D. If RC is operating without the Cisco configuration option all three routers tear down their peering relationships and re-establish peering
Answer: A
NEW QUESTION # 67
Refer to the exhibit.
CE1 and CE2 cannot communicate through the service provider BGP peering is established between PE1 and PE2. IS-IS is the only routing protocol running in the service provider core.
What
step can be done to troubleshoot the issue?
- A. Configure BGP between CE and PE routers.
- B. Confirm that IS-IS is running with metric-style narrow.
- C. Switch the IGPs running in the core from IS-IS to OSPF to support a Cisco MPLS TE tunnel from PE1 to PE2.
- D. Verify the MPLS LSPs.
Answer: B
NEW QUESTION # 68
Refer to the exhibit.
Refer to the exhibit. A network engineer is investigating a report of packet drops between the branch site and the central site.
The two sites are connected via OSPF and RSVP-TE tunnels.
Traffic from the central site to the branch site is passing normally.
Technicians at both sites successfully ping the loopback IP addresses on routers R1 and R2.
Which configuration corrects the packet-drop problem?
- A. Option B
- B. Option A
- C. Option D
- D. Option C
Answer: C
NEW QUESTION # 69
Refer to the exhibit. AJI four routers on the network reside in the same data center. The four routers are running IS-IS between them in Level 1 mode within an IPv4 network. After a network engineer installed several new servers connected to R4, users connected via R1 reported they could not connect to applications on the servers. The engineer has determined that R4 is receiving routes from R3 but it is failing to receive routes from R1. Which action must the engineer take to resolve the issue?
- A. Configure R2 only to be a Level 2 router
- B. Configure R2 and R3 to be Level 1/Level 2 routers
- C. Configure R3 only lo be a Level /Level 2 router
- D. Configure R1 and R4 to be Level 2 routers
Answer: B
NEW QUESTION # 70
Refer to the exhibit.
CE1 is the gateway router into the provider network via PE1. A network operator must inject a default route into OSPF area 0. All devices inside area 0 must be able to reach PE1. Which configuration achieves this goal?
- A. Option C
- B. Option B
- C. Option A
- D. Option D
Answer: A
NEW QUESTION # 71
Refer to the exhibit. R3 is:
- failing to accept multicast RP information from Domain-A
- advertising MSDP SA messages to R1 and R4
- receiving SA messages only from R4
R3 is:
Which command must the engineer implement to resolve the issue?
- A. R3# no ip msdp peer 192.168.1.1
- B. R3# no ip msap sa-filter in 192.168.1.1
- C. R3# ip msdp sa-filter in 192.168.3.1
- D. R3# ip msdp sa-filter out 192.168.1.1
Answer: C
Explanation:
https://allthingsnetworking.wordpress.com/2014/06/27/pim-msdp-sa-filter/
NEW QUESTION # 72
Refer to the exhibit.
R2
Answer:
Explanation:
Solution:-
R1
Int loopback0
Ip ospf 10 area 0
Int loopback10
Ip ospf network point-to-point
Int loopback20
Ip ospf network point-to-point
Int loopback30
Ip ospf network point-to-point
Router ospf 10
Area 1 range 172.16.100.0 255.255.252.0
Copy run start
Verification: -
NEW QUESTION # 73
......
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