Free Practice Questions for the Cisco CCNP Service Provider 300-510 Exam (2026 Updated)

What is a feature of SRGB label values?

Refer to the exhibit.

A service provider is running IS-IS in the core, and all routers use the default IS-IS configuration and reside in the same area. All routers maintain a different 6 bytes for the system ID. but the attached bits in the NET are the same. After an engineer added router R6 to the network. R3 and R5 began to experience CPU processing issues. Which action must the engineer take to resolve the issue?

Refer to the exhibit.

The extension header of the IPv6 header is ignored when which value is equal to zero?

Refer to the exhibit.

The network is situated at different locations on the customer site. The customer runs a mission-critical application behind CE2. which is connected over a 10 link to the local network of the customer After recent configuration changes to the P and PE routers, an LSP failure has occurred, causing connectivity issues. CE1 is unable to which the CE2 internal IP address Which action resolves this issue?

network engineer must implement a segment routing policy rule that specifies that SIDs are bounded manually. The policy will be used for traffic steering based on incoming label ..with the binding SIDs, adjacency SIDs, and BGP peering SIDs. All labels will be in the local segment with the range from 40000 to 50000. How must the engineer implement … label allocation?

Refer to the exhibit.

Routers R1 and R2 are RFC 5036-based MPLS-enabled core routers MPLS IP is enabled globally on both routers OSPF with area 0 configuration is used as an interior routing protocol between the routers After new services were enabled on the MPLS network, LDP connectivity failed on R1 TCP/UDP port 711 is confirmed to be open Which two actions must the engineer take to correct the problem? (Choose two.)

Refer io the exhibit.

While applying the configurations on two routers an engineer notices that OSPF adjacency Between them remains down Through the ping test the engineer confirmed that both me routers have Layer 3 reachability between them Which action should me engineer take to make the adjacencies to full?

Refer to the exhibits.

A network operator is troubleshooting packet loss seen from the R1 loopback interface to the R2 loopback interface over the core network. The operator is attempting to identify the next leg in the path from PE1. Which interface and label path should the operator investigate next?

Refer to the exhibit.

A network operator must inject a Level 1 route from XR2 (10.16.16.0/24) into the ISIS

topology. Which configuration allows the injection in a way that XR3 and XR1 have a valid and working route for 10.16.16.0/24?

Level 3 switch SW1 is part of an EIGRP enabled network located at the edge of an area. Cisco Express Forwarding and SSO are enabled on the router. A network engineer must minimize the downtime of data-transmit services in the network. HSRP group 2 has already been configured with standby preempt delay minimum 2 and standby timers 140. Which additional action must the engineer take on SW1 to suppress routing flaps for 2 minutes?

Refer to me exhibit.

A network engineer sets up a multihoming eBGP topology where multiple Autonomous Systems connect to ASN 64501. The engineer wants to block all the routers coming from ASN 64502. but allow all the others. For that purpose, the following AS Pam prefix 1st s being used:

What must be fixed to achieve this result?

Which expression, when used with the as-path-set command, matches the AS path attribute of the route?

What is used by SR-TE to steer traffic through the network?

Refer to the exhibit.

A network engineer has divided AS into confederations. Due to repeated ASN, when the 10.0 0.0/8 prefix from R1 arrives to R2, BGP automatically rejects it. What should the engineer do to fix the problem so that BGP allows that prefix on R2?

Which attribute is used to instruct the router that packets must be processed by an ASA that is associated with the segment?

What is a feature of SR-PCE?

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?

Which BGP well-known attributes are preserved between peers with a BGP confederation?

In a PIM-SM environment, which mechanism determines the traffic that a receiver receives?

While configuring Cisco NSF awareness, a network engineer enters the bgp graceful-restart command after the BGP session is established in a router that runs IOS XE Software. Graceful restart capabilities are not exchanged. Which two actions should be taken ? (Choose two.)

Refer to the exhibit. An engineer working for a private telecommunication company with an employee id 4115 46 881 is enabling a segment routing solution with these requirements.

A service provider is using the default range for prefix SID.

PE1 must allocate the first SID from the default range for the loopback address

PE1 and PE2 loopback SID allocation should have a minimum difference of 500.

Which configuration must be implemented to meet the requirements?

Which requirement must be met while using parameter with conditional matching in routing policy definition?

Refer to the exhibit The engineering team noticed route disruptions when DSL subscriber 172.16.20.10 goes offline. In this service provider environment:

The OSPF backbone area is configured to advertise loopback prefixes

The PE routers are running BGP-IPv4 address family in a BGP-free core topology.

The DSL subscriber IP subnet 172.16.20.10/32 is redistributed in BGP on PE1

Which configuration on PE1 resolves the issue?

Refer to the exhibit After recent configuration changes to a customer ' s network, a network engineer notices that R2 cannot communicate with R3 Both FastEthemet interfaces on R2 and R3 are up and configured with the correct IP addresses MD5 password configured en R2 and R3 match with no issues What is the minimum change the engineer must make to enable R2 and R3 to commu nicate and fix the problem?

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

Refer to the exhibit.

Which effect of this configuration is true?

Refer to the exhibit.

ISP_1 uses eBGP for connection to all clients LDP with OSPF and IS-IS is used in the ISP_1 network Client_A and Client_B are in the same VRF_VoD. After oftware upgrade on all routers on the ISP_1 network, Client_A has lost the connection to Client_C. A network engineer must troubleshoot the connection from R1 to R4 via M. After initial checks, the engineer confirmed that all routes are installed correctly. Which two tasks must the engineer perform to correct the problem? (Choose two.)

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. V oIP 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?

What is a restriction of 6PE?

See the solution below in Explanation.

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.)

Refer to the exhibit.

ISP_A in AS 635 has four BGP neighbors connected one-by-one, starting from AS 12 R1 has been configured with bgp deterministic-med and bgp additional-paths install to influence egress traffic After a recent reload of R10, all traffic was automatically re-routed via AS 87 A network engineer must correct the traffic flow and route the traffic via AS 101 Which configuration must the engineer apply to R1 to correct the problem without affecting the second BGP attribute?

Which difference must an engineer consider when choosing whether to implement OSPF or IS-IS as the routing protocol on the network?

Refer to the exhibit Reuters R2. R3, R4 and R5 all reside in the same area, with R1 in a different area R3 is overutilized and the engineer wants to reduce its CPU load The engineer configured router R4 to summarize routes that it receives from R5. but R3 is still receiving all of the R5 routes. Which action resolves the issue?

Refer to the exhibit.

Which tree does multicast traffic follow?

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

Refer to the exhibit.

Router 1 has attempted to establish a Cisco MPLS TE tunnel to router 2, but the tunnel

has failed. Which statement about this configuration is true?

Refer to the exhibit.

An administrator is troubleshooting Internet access issues on a customer’s network. After applying this ISIS configuration to R1, the administrator notices that it fails to redistribute the default route into IS-IS. After checking the connectivity between the ISIS router and the ISP router the engineer confirmed there is Layer 3 connectivity between them Which action should be taken to correct the problem?

Refer to the exhibit.

An engineer is addressing an IS-IS design issue which is running within the topology. All

links are running on FastEthernet, except the link between R5 and R4, which is Gigabit Ethernet. Which statement about the design is true?

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

Which type of policy does an IPv6 ISATAP tunnel support?

Refer to the exhibit.

A network operator is working to deploy a Unified BGP design and allow it to be available only in selected markets and services in the future. The label allocation is not functioning as desired. Which action will fix the issue?

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?

Refer to the exhibit.

A network engineer configured routers R1 and R5 to run in IS-IS Level 1 mode and router R6 to run in IS-IS Level 2 mode. All other routers are running as Level 1 / Level 2 routers. An engineer expects traffic from R1 to R6 to pass via R2, but IS-IS routing has calculated the best path via R4. Which action corrects the problem?

Refer to the exhibit.

After you applied these configurations to routers R1 and R2, the two devices could not

form a neighbor relationship. Which reason for the problem is the most likely?

Which feature is used in multicast routing to prevent loops?

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?

Refer to the exhibit. The Cisco router has a single uplink to the upstream network, which is critical to the business. The router is configured for traffic steering with the Autoroute mechanism configured to steer all OSPF and IS-IS prefixes over non-shortest paths and divert traffic for those prefixes to the SR-TE policy. However, the Autoroute Announce functionality for all prefixes is not working. Which additional command set must the engineer configure on the router to correct this issue?

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?

Refer to the exhibit.

Router 1. Router 2. and Router 3 are co-located in an onsite data center of an office, but Router 4. Router 5. and Router 6 are installed in another data center ' eral miles away. A network engineer is troubleshooting an RSVP-TE issue on the network. On most of the devices, the engineer can move all LSPs away from a selected dace and take it down for maintenance without interrupting traffic. However, when an interface on Router 3 is taken down, traffic on the network is disrupted. What must the engineer enable to resolve the issue on Router 3?

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 connecti on between the devices is working normally. Whch additional command sequence must the engineer add to correct the issue?

What is one of the purposes of a default Multicast Distribution Tree?

Refer to the exhibit.

VPN users that are connected to PE routers are facing network issues. Traffic that originates from CE1 drops before reaching CE2. An engineer finds no outgoing traffic statistics on PE1 and PE2 routers toward CE devices and finds that the PE1 router is running the older software image. Which action must be implemented to resolve the issues?

Refer to the exhibit.

OSPF is running in the network, which spans multiple areas as shown, and all OSPF neighbors are established. Hosts that reside on the LAN on R1 are trying to reach a server connected to R5, but R1 cannot reach the R5 routes. The server must maintain a TCP connection with the hosts. Which action must the engineer take to resolve the issue?

Refer to the exhibit. After a recent network implementation project, customer A is performing stress testing to verify network redundancy at the branch office connected to R4. When the link from R2 is shut öown as shown, the SLA tracking object fails and the cost of the link between R2 and R4 increases to 100. However, a traceroute operation from a PC in the Branch office shows t hat traffic to HQ is still routed via R2. Which solution corrects the problem and optimizes traffic flow via R3 without creating operational overhead?

Refer to the exhibit Networks 172.16.31.0/24 and 172 16 30.0/24 are advertised in area 34. and network 172.22 10.0/24 is advertised in area 0. A recent security review discovered that users connected to routers R1 and R2 have been making unauthorized access to an application running on network 172 16 31 0/24 An engineer determined that routers R1 and R2 are receiving updates for network 17 16 31 0/24 Which action resolves the issue?

Refer to the exhibit.

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

Refer to the exhibit.

An engineer at a large ISP is troubleshooting suboptimal routing on a customer ' s IS-IS network with multiple Level 1-2 routers. The network consists of numerous routers that are configured for MPLS. When IS-IS picks the closest Level 1-2 router to exit the area, suboptimal routing occurs in Area 8 and Area 10. The other IGP protocols are running correctly, and the IS-IS adjacency between routers is established. Which action resolves the issue?

Refer to the exhibit A network engineer configured the redistribute connected subnets route-map filtering command on R1 to redistribute connected interfaces to the OSPF process The engineer also wants to filter out IP address 10 0 1 0/24. but the prefix still appears in the routing tables of the other routers on the network. Which action corrects the problem?

Refer to the exhibit.

IS-IS is the routing protocol on the network. After the team noticed excessive CPU usage on all routers, particularly routers R2 and R6, they configured route summarization on all routers. However, a network engineer noticed that summary routes and more specific routes are present in the routing table on R1. Which action must the team take so that R1 receives only the summary routes?

Refer to the exhibit. A network engineer is configuring router R3 to handle multicast streams, but Host-2 cannot send subscriptions messages to the IPTV source. Which configuration must the engineer apply to router R3 so it passes the IPTV stream to Host-2?

Refer to the exhibit.

Which task must you perform on interface g1/0/0 to complete the SSM implementation?

Which statement about enabling segment routing for IGPs is true?

Refer to the exhibit.

The service provider provides IPv6 connectivity to large enterprise customers with offices spanning several geographic regions SRv6 is running in the service provider core The service provider just signed a contract with a new customer that is still running IPv4 The new customer needs connectivity between its two sites connected via CE1 and CE2 and the internet Which action must the service provider s network-engineering team take to provide connectivity across the SRv6 data plane?

Refer to the exhibit.

Customer traffic from the branch site to the hub is experiencing packet drops. The engineer verified that:

Customer traffic from the hub is able to reach the branch site.

The connection between PE1 and PE2 is working normally.

Routers P1 and P2 are able to ping devices on the hub site.

Which action resolves the issue?

Refer to the exhibit.

A network operator must stop 10.33.33.33/32 from being redistributed into Level 1 router

XR1. Which configuration meets this need?

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

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?

Refer to the exhibit. Excessive routes are flooding from network 150.0.0.0 into AS100. Internet traffic between AS400 and AS300 is working normally. No route controlling mechanism is applied on incoming and outgoing traffic Which configuration resolves the issue?

Which keyword is used with the match route-type command to redistribute the external BGP and IGP routes using route map?

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?

What is the difference between basic IS-IS and OSPF packet types?

Refer to the exhibit. Unified MPLS is implemented on this network to provide end-to-end services A network engineer noticed that R3 is failing to receive labels from R1 However, R2 is receiving labels from R1 R3 can ping R1 normally Which action resolves the issue?

Which two routing protocols have extensions capable of running SRv6? (Choose two.)

Refer to the exhibit.

After these configurations were applied to routers R1 and R2. the two devices cannot form a neighbor relationship What is the reason tor the problem?

Refer to the exhibit.

An engineer is troubleshooting an OSPF issue. Router 1 has a neighbor relationship with

router 2. Only router 1 classful EIGRP routes can be seen on router 2. In order for all EIGRP routes to be redistributed correctly, which action should be taken?

A network consultant is troubleshooting IS-IS instances to identify why a routing domains is having communication problems between the two instances. Which description of the possible cause of issues in the routing domain is true?