300-510 by Cisco Actual Free Exam Questions And Answers [UPDATED 2025]
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Cisco 300-510 exam is an important certification for IT professionals who want to demonstrate their expertise in implementing advanced routing solutions in a service provider network. 300-510 exam is designed to test the skills required to deploy, configure, manage, and troubleshoot complex routing technologies and protocols in a service provider environment. Successful candidates will be able to demonstrate their knowledge of advanced routing technologies such as BGP, OSPF, IS-IS, and MPLS, as well as their ability to implement solutions that meet the needs of service provider customers.
Passing the Cisco 300-510 certification exam is a significant achievement that can help IT professionals advance their careers in the service provider industry. Implementing Cisco Service Provider Advanced Routing Solutions certification demonstrates a high level of expertise and proficiency in implementing advanced routing solutions, which is highly valued by employers in this industry. It can also open up new career opportunities and increase earning potential.
Prerequisites for Final Exam
The individuals concerned will already have awareness and skills involving how to execute and operate Cisco core technologies for the networks that are targeted at the Service Providers. They should also have a deep comprehension of the 300-510 subject matter so gaining the requisite knowledge takes deliberate learning that makes use of recommended courses as well as revision or study guides. Potential candidates should also be aware of the registration process for the official test. Thus, they should have a Pearson VUE account before they can do the final registration, which includes selecting the number of the evaluation they intend to do.
NEW QUESTION # 140
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. Option B
- B. Option D
- C. Option C
- D. Option A
Answer: C
NEW QUESTION # 141
Refer to the exhibit.
Refer to the exhibit. A network engineer configured three new PE routers to expand the network. The new routers run in the IS-IS routing protocol and reside in the data center in the same exchange as the existing routers. However, the network is now experiencing suboptimal routing. The Layer 2 configuration and VLANs are configured correctly to provide segregation between networks, but the Level 1 routes are not being converted to Level 2 routes. Which action resolves the issue?
- A. On Router 2. summarize internal routes between areas.
- B. On Router 2, redistribute the routes into IGP.
- C. On Router 1, redistribute the routes into IGP.
- D. On Router 1, summarize internal routes between areas.
Answer: A
NEW QUESTION # 142
Refer to the exhibit
An engineer is configuring service traffic from router R1 to R6 as shown. Which additional configuration must the engineer implement so that the LDP and SR domains will participate and interwork with each other?
- A. Router2(config)# segment-routing
Router2(config-sr)# sr mapping-server
Router2(config-sr-ms)# ldp-sid-map
Router2(config-sr-ms-map)# address-family ipv4
Router2(config-sr-ms-map-af)# 10.1.1.1/32 500 range 50 - B. Router2(config)# segment-routing
Router2(config-sr)# ldp mapping-server
Router2(config-sr-ms)# prefix-sid-map
Router2(config-sr-ms-map)# address-family ipv4
Router2(config-sr-ms-map-af)# 2.2.2.2/32 500 range 40 - C. Router2(config)# segment-routing
Router2(config-sr)# ldp mapping-server
Router2(config-sr-ms)# prefix-sid-map
Router2(config-sr-ms-map)#
Router2(config-sr-ms-map-af)# 2.2.2.2/32 500 range 4 - D. Router2(config)# segment-routing
Router2(config-sr)# mapping-server
Router2(config-sr-ms)# prefix-sid-map
Router2(config-sr-ms-map)# address-family ipv4
Router2(config-sr-ms-map-af)# 10.1.1.1/32 500 range 50
Answer: D
NEW QUESTION # 143
Refer to the exhibit. A network engineer configured three new PE routers to expand the network.
The new routers run the IS-IS routing protocol and reside in the data center in the same exchange as the existing routers. However, the network is now experiencing suboptimal routing.
The Layer 2 configuration and VLANs are configured correctly to provide segregation between networks, but the Level 1 routes are not being converted to Level 2 routes. Which action resolves the issue?
- A. On Router 2, redistribute the routes into IGP.
- B. On Router 1, redistribute the routes into IGP.
- C. On Router 2, summarize internal routes between areas.
- D. On Router 1, summarize internal routes between areas.
Answer: C
NEW QUESTION # 144
Refer to the exhibit.
An engineer has successfully fixed BGP peering issue. R1 has an established eBGP peering with R2 and R3. Which mechanism should the engineer apply in order to steer the traffic correctly?
- A. The IGP metric can be manipulated on R1 to allow traffic to be load balanced between R2 and R3.
- B. The weight attribute can be applied on R2 to influence AS 65513 to use AS 65515 as the primary path.
- C. The MED attribute can be applied on R2 to influence R1 to use it as the primary path.
- D. The local preference attribute can be applied on R3 to influence AS 65513 to use AS 65515 as the secondary path.
Answer: A
NEW QUESTION # 145
Refer to the exhibit.
Which effect of this configuration is true?
- A. It sets the hold timer to 30 seconds and the keepalive timer to 240 seconds
- B. It sets the hold timer to 30 milliseconds and the keepalive timer to 240 milliseconds
- C. It sets the keepalive timer to 30 seconds and the hold timer to 240 seconds.
- D. It sets the keepalive timer to 30 milliseconds and the hold timer to 240 milliseconds
Answer: C
NEW QUESTION # 146 
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 # 147
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. Confirm that IS-IS is running with metric-style narrow.
- B. Configure BGP between CE and PE routers.
- 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: D
NEW QUESTION # 148
Refer to the exhibit.
A network operator is troubleshooting TE tunnels and discovers that the soft preemption is not working as desired. Where should the soft preemption be applied to solve the issue?
- A. on the tail-end device for tunnel-te1 192.168.0.7
- B. explicitly for tunnel-te 1 under the Cisco MPLS TE configuration mode after the timeout setting
- C. Under the interface Loopback0 necessary for this deployment type.
- D. under the tunnel-te1 interface on PE1
Answer: D
NEW QUESTION # 149
Refer to the exhibit.
Refer to the exhibit. An engineer working for a private telecommunication company with an employee id: 4233:46:364 notices that the customer network going through AS30-AS65001-AS65000 is experiencing packet drops when it accesses an application at 172.16.20.1/32 In the DC cloud. The BGP link between AS20 and AS30 is inaccessible because of a fiber cut. Routers RL, RN, and RZ are configured with confederation identifier 10. Which action resolves this Issue?
- A. Option B
- B. Option D
- C. Option A
- D. Option C
Answer: C
NEW QUESTION # 150
How does the SRv6 IS-IS Flexible Algorithm function on the data plane?
- A. It uses the TE metric in its path calculations to optimize the cumulative TE metric.
- B. It automatically delivers traffic to the destination over an engineered path computed by the IGP.
- C. It applies path computation algorithms to learn the topology and compute a pair of disjoint LSPs.
- D. It uses the IGP metric in its path calculations to optimize reachability.
Answer: B
NEW QUESTION # 151
Which two statements about route reflectors are true? (Choose two.)
- A. Routes received from nonclient peers are reflected to route reflector cluster as well as OSPF peers.
- B. Routes received from nonclient peers are reflected to route reflector clients as well as nonclient peers.
- C. If a router received an iBGP route with the originator-ID attribute set to its own router ID, the route is discarded.
- D. If a route reflector receives a route with a cluster-list attribute containing a different cluster ID, the route is discarded.
- E. Routes received from a route reflector client is reflected to other clients and nonclient peers.
Answer: C,E
Explanation:
Explanation/Reference: http://www.networkers-online.com/blog/2009/02/bgp-route-reflector-basics/
NEW QUESTION # 152
Compare different features between OSPFv2 and OSPFv3. Drag and drop the descriptions of OSPF from the left onto the correct OSPF versions on the right.
Answer:
Explanation:
NEW QUESTION # 153 
Refer to the exhibit. An engineer is troubleshooting an issue with traffic steering using the color-only automated steering mechanism. BGP is failing to automatically steer traffic into an SR policy with the given color of a route, regardless of the next hop. The layer 2 configuration is correct, and the physical connection between the devices is working normally. Whch additional command sequence must the engineer add to correct the issue?
- A. Option B
- B. Option D
- C. Option A
- D. Option C
Answer: B
NEW QUESTION # 154
Refer to the exhibit.
A customer reports that Host-1 is failing to receive streaming traffic from the IPTV source. The engineer has confirmed that hosts on router R2 are receiving traffic normally and that Host-1 is correctly sending subscription messages to join the IPTV stream. Which action must the engineer take to correct the problem?
- A. Remove IP PIM SSM and IGMP from interface GigaEthernet 1/0/1 on R3 and configure under global configuration
- B. Remove IP PIM SSM from the global configuration on R3 and configure it under the GigabitEthernet 1/0/1 interface
- C. Configure IP PIM SSM and IGMP version 2 under interface GigatxtEthernet 1/0/1 on R3
- D. Configure IGMP version 3 under interface GigabitEthernet 1/(V1 on R3
Answer: D
NEW QUESTION # 155 
Refer to the exhibit. An engineer working for a private telecommunication company with an employee id:
4233:46:364 notices that the customer network going through AS30-AS65001-AS65000 is experiencing packet drops when it accesses an application at 172.16.20.1/32 In the DC cloud. The BGP link between AS20 and AS30 is inaccessible because of a fiber cut. Routers RL, RN, and RZ are configured with confederation identifier 10. Which action resolves this Issue?
- A. Option B
- B. Option D
- C. Option A
- D. Option C
Answer: C
NEW QUESTION # 156
Refer to the exhibit. Routers R1 and R2 reside in AS 65530, which is multihomed to the Internet.
A network engineer expects devices in the AS to use R2 to access the Internet, but they are using R1 as the exit point from the AS. Which action corrects the problem?
- A. Configure the route map with a local preference of 200 or higher.
- B. Change the route map direction in the neighbor statement to out.
- C. Remove the neighbor statements from the address family configuration and activate the neighbor globally on R1.
- D. Add a sequence number to the route map to remove the implicit deny.
Answer: B
Explanation:
https://community.cisco.com/t5/networking-blogs/bgp-as-path-prepending-configuration/ba- p/3819334
NEW QUESTION # 157
Refer to the exhibit.
Why is neighbor 10.1.5.5 stuck in "2WAY" state?
- A. OSPF parameters (Area ID or hello interval) are mismatched between R2 and 10.1.5.5
- B. It is an expected behavior when OSPF network type is broadcast
- C. OSPF authentication has failed between R2 and 10.1.5.5
- D. Router ID 10.1.5.5 is not reachable from R2
Answer: B
NEW QUESTION # 158
After an engineer configures BGP in R1, it starts receiving this message
*Jun 29 13:30:50.122: %BGP-5-ADJCHANGE: neighbor 192.168.10.1 Down User reset Jun 29 13:30:52.341: %BGP-3-NOTIFICATION: sent to neighbor 192.168.10.1 2/6 (unacceptable hold time)
0 bytes
Which action makes the peering come back up again?
- A. Set up a hold-down timer higher.
- B. Set up a hello timer higher.
- C. Set up a minimum hold-down timer higher.
- D. Make a soft reset to the peer.
Answer: A
NEW QUESTION # 159
Which two functions are supported for BGP extension MP-BGP for IP multicasting? (Choose two.)
- A. A network can support incongruent unicast and multicast topologies.
- B. MP-BGP is useful when a link dedicated to multicast and unicast traffic is desired.
- C. A network can support congruent unicast and multicast topologies.
- D. MP-BGP is an enhanced BGP that carries routing information for multiple network layer protocols and IP multicast routes.
- E. MP-BGP carries single sets of routes for unicast routing and multicast routing.
Answer: A,D
NEW QUESTION # 160
Refer to the exhibit.
A customer reports that Host-1 is failing to receive streaming traffic from the IPTV source. The engineer has confirmed that hosts on router R2 are receiving traffic normally and that Host-1 is correctly sending subscription messages to join the IPTV stream. Which action must the engineer take to correct the problem?
- A. Remove IP PIM SSM and IGMP from interface GigaEthernet 1/0/1 on R3 and configure under global configuration
- B. Remove IP PIM SSM from the global configuration on R3 and configure it under the GigabitEthernet 1
/0/1 interface - C. Configure IP PIM SSM and IGMP version 2 under interface GigatxtEthernet 1/0/1 on R3
- D. Configure IGMP version 3 under interface GigabitEthernet 1/(V1 on R3
Answer: D
NEW QUESTION # 161
Which expression, when used with the as-path-set command, matches the AS path attribute of the route?
- A. ios-regex
- B. Length
- C. neighbor-is
- D. dfa-regtex
Answer: A
NEW QUESTION # 162
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