Free 300-510 Practice Test Questions 2026

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 A

B. Option B

C. Option C

D. Option D

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

A. origin and MED

B. originator and origin

C. next-hop and local-preference

D. next-hop and weight

Refer to the exhibit.

How are packets directed through the data plane when SRv6 is implemented?

A. An ordered list of segments is encoded in a routing extension header

B. The MPLS data plane is used to push labels onto IGP routes

C. A stack of labels represents an ordered list of segments

D. The packet is encapsulated with a header and trailer encoding the ordered list of segments

Refer to the exhibit.

Router 1 has established an SR-TE tunnel with router 2. Which statement describes this configuration?

A. Router 1 has a list of labels used to explicitly lay out a path to router 2.

B. Router 1 and router 2 have a bidirectional tunnel set up with dynamic path selection.

C. Router 1 is the head-end tunnel and has dynamically chosen a path to router 2.

D. Router 2 is the head-end tunnel and has explicitly set a path to router 1.

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. Option A

B. Option B

C. Option C

D. Option D

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

A. service SID with service instructions

B. node SID that identifies a specific network device

C. prefix SID that represents a specific route prefix

D. adjacency SID with unidirectional adjacency instructions

Refer to the exhibit. After creating dynamic neighbors for the range specified, the network administrator with an employee ID: 4690:88:374 cannot see all the BGP neighbors established. What is the issue?

A. The single activated neighbor cannot be within the listen range.

B. A list of neighbors belongs only to a defined ASN.

C. The peer groups must also be activated inside the address family.

D. The listen limit is smaller than the prefix defined in the listen range.

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 uses the IGP metric in its path calculations to optimize reachability.

C. It automatically delivers traffic to the destination over an engineered path computed by the IGP.

D. It applies path computation algorithms to learn the topology and compute a pair of disjoint LSPs.

The operator must leverage automated steering and coloring with the design. Which two elements from an SR Policy tuple are used for automated steering inside of the network?
(Choose two.)

A. endpoint

B. candidate labels

C. color

D. CM paths

E. headend

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 interface 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?

A. FRR

B. NSR

C. soft-preemption feature

D. soft-disperse feature

Refer to the exhibit.

Company A established BGP sessions with several ISPs. A network engineer at the company must filter out all traffic except for routes that transit AS 152. The engineer configured the filtering policy “permit _152S_(_[0.9])” on R1, but after applying the configuration, the engineer notices that other routes are still visible. Which action resolves the issue?

A. Option A

B. Option B

C. Option C

D. Option D

Refer to the exhibit.

EBGP peering is up between BGP AS 65101 and BGP AS 65201 The service provider expects traffic convergence within 300ms between the two autonomous systems but the network operations team sees that route and traffic convergence is too slow Which two actions improve the convergence time? (Choose two.)

A. Change the bfd multiplier value to 3 on routers RN and RM

B. Configure fall-over bfd under the BGP instance for BGP neighbors on RN

C. Configure bfd interval 50 min_rx 100 multiplier 6 on the connected interfaces on RN and RM

D. Configure bfd interval 50 min_rx 50 multiplier 6 on the connected interfaces on RL and RY

E. Change the bfd interval value to 100ms on routers RN and RM