Free 300-510 Practice Test Questions 2026

What is a restriction of 6PE?

A. It is implemented only over eBGP peers.

B. It is implemented only over iBGP peers.

C. It adds a value of ::FFFf:: on the IPv4 next hop address.

D. It cannot be implemented on VRFs.

Refer to the exhibit.

A network engineer must enable segment routing between the three autonomous systems with these requirements:

·OSPF link-state data for area 0 routers must be distributed to the controller via BGP LS.
·EPE must be enabled on the egress node in AS 100.
·Routers must advertise peer node SIDs to the controller R1 via BGP LS.

Which configuration must the engineer apply?

A. Option A

B. Option B

C. Option C

D. Option D

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 the subnet range with the network command under the IS-IS process.

B. Configure RI as a Level 1 device.

C. Redistribute both routes into the ISIS process.

D. Configure a summary route for Level 1-Level 2 devices.

E. Configure a summary route for Level 1 devices.

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 1, redistribute the routes into IGP.

B. On Router 1, summarize internal routes between areas.

C. On Router 2, redistribute the routes into IGP.

D. On Router 2. summarize internal routes between areas.

A network administrator working for a private service provider with an employee ID 4784 41 907 wants to configure timers for the BGP process on their Cisco IOS XE router Which configuration follows guideline timer recommendations and is a valid BGP timer deployment?

A. Option A

B. Option B

C. Option C

D. Option D

Refer to the exhibit.

A network engineer implemented this segment routing configuration. Which statement about the output is true?

A. This range conflicts with the segment routing local block range.

B. The device must be reloaded for these ranges to be allocated and used.

C. The default segment routing global block range is being used on this device.

D. A nondefault segment routing global block range is being used on this device.

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 MED attribute can be applied on R2 to influence R1 to use it as the primary path.

B. The local preference attribute can be applied on R3 to influence AS 65513 to use AS 65515 as the secondary path.

C. The weight attribute can be applied on R2 to influence AS 65513 to use AS 65515 as the primary path.

D. The IGP metric can be manipulated on R1 to allow traffic to be load balanced between R2 and R3.

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.)

A. Configure next-hop-self under the BGP configuration on R42.

B. Configure mpls label implicit-null under the global configuration on R31.

C. Configure next-hop-unchanged under the BGP configuration on R31.

D. Configure ip cef under the global configuration on R31.

E. Configure send-label under the BGP configuration on R42

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.

Which IPv6 prefix format defines the destination of a dynamic 6to4 tunnel?

A. 2001:db8::/32

B. 2002::/16

C. fe80::/10

D. ff00::/8

Refer to the exhibit.

An engineer is troubleshooting a network routing issue on this IS-IS network situated at the customer's regional hub. Router 2 that runs Cisco IOS XR Software cannot see the network 10.1.1.0/24 on router 1. The Layer 2 encapsulations are correct. The ARP connectivity for the Ethernet interface that runs IS-IS is working. Which action resolves the issue?

A. On router 1, remove the CISCOLIVE keyword after the Ip router Isis command under interface GigabitEthernet0/2.

B. Under the router isis command on router 1. change is-type level-1 to is-type level-2

C. On router 1. add the CISCOLIVE keyword after the Ip router isis command under interface GigabitEthernet0/3.

D. Under the router isis command on router 2. change is-type level-1 to is-type level-2

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 PEL

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.