Free Cisco 300-510 Practice Exam Questions and Answers 2026

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Total 271 Questions | Updated On: Apr 01, 2026

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Question 1

Refer to the exhibit. Mid-sized company Z connected two branch offices via a multicast-enabled ISP using the BGP routing protocol. PIM was implemented to support multicast streaming between the branches via MSDP Client A cannot connect to the multicast stream source of company Z. The network engineer ran a debug on the edge of the network as shown. Which action resolves the issue?

A : Implement MBGP and enable a multicast address family on R2

B : Configure the PIM protocol on the Serial 1/1 interface and enable Auto-RP

C : Deploy BSR on routers R1 and R2 and enable multicast on both LAN segments.

D : Enable the BGP routing protocol and advertise the 10 10.10.0/24 subnet on R1.

Answer: C

Question 2

Refer to the exhibit.

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?

A :

B :

C :

D :

Answer: D

Question 3

Which two BGP route reflector attributes should be implemented to prevent routing loops? (Choose two)

A : CLUSTER_ID

B : ORIGINATOR_ID

C : CLUSTER_LIST

D : COMMUNITY

E : AS_PATH

Answer: B,C

Question 4

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 : Switch the IGPs running in the core from IS-IS to OSPF to support a Cisco MPLS TE tunnel from PE1 to PE2.

B : Configure BGP between CE and PE routers.

C : Confirm that IS-IS is running with metric-style narrow.

D : Verify the MPLS LSPs

Answer: D

Question 5

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?

A : Configure all routers as Level 1 routers.

B : Remove the link metric for the link from router R1 to router R2.

C : Change the link metric for the link from router R1 to router R2 to 1.

D : Configure all routers as Level 1 / Level 2 routers.

Answer: C

Page: 1 / 55

Total 271 Questions | Updated On: Apr 01, 2026

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