Free Cisco 300-510 Exam Questions

Become Cisco Certified with updated 300-510 exam questions and correct answers

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Total 271 Questions | Updated On: Mar 19, 2026

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Question 1

Refer to the exhibit.

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. VoIP 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?

A : nfigure the ip ospf I area O command under Serial 1/1 interfaces on R2 and R3 to avoid routing loops

B : ange the OSPF router ID on either router so that the router IDs are unique.

C : nfigure the summary-address 10.10.0.0 255.255.240.0 command on R3 to optimize OSPF communication

D : nfigure the BGP routing protocol between R2 and R3 to control route propagation.

Answer: C

Question 2

Refer to the exhibit.The four routers in this network have formed adjacencies. Router R2 is an IS-IS level 1-2 router that connects to other areas, and the attach bit is set in the R2 level 1 LSP advertisements to R1. According to the network design, R2 should push level 2 routes from its routing table to the R1 routing table. However, R1 installed a default route in its routing table. Which action resolves this problem?

A : Use The is-type level-1-2 backdoor command lo unset the attach bit on R1 and use a prefix List to filter prefixes from R2

B : Set the attach bit on R1and use a prefix list to filter prefixes from R2.

C : Use the is-type level-1-2 backdoor command to unset the attach bit on R2 and configure a distribute-list to redistribute prefixes to R1

D : Configure R2 as a level 1 router and use a prefix list to filter prefixes to R1.

Answer: C

Question 3

Refer to the exhibit. A network engineer must correct the security policy on the EDGE_R router, which is connected to two Tier 1 ISPs. After another engineer added ip as-path access-list 11 permit 11 to EDGE_R, some routes from AS 11 and AS 4832 started to appear in the routing information base (RIB). Traffic control via Community options is disabled on both ISPs. How should the network engineer update the router configuration on EDGE_R so that only routes for AS 11 are permitted?

A : Configure ip as-path prefix-list 11 permit _11$.

B : Configure ip as-path access-list 11 permit _11_.

C : Configure ip as-path distribution-list 11 deny A[0-9]+S.

D : Configure ip as-path access-list 11 deny 4832$.

Answer: D

Question 4

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?

A : same interface cannot be advertised in two different IS-IS instances

B : IS-IS ''ISP'' and ''ISP2'' instances are unrelated and unable to intercommunicate

C : configured IS-IS NSEL value is not allowing the routing systems to establish a neighborship

D : interface mode ip router is-is command was not included in the script

Answer: A

Question 5

Refer to the exhibit.OSPF is running in the core of a company. Router RA is running EIGRP. After the company acquired an additional office, an engineering team connected the two networks from router RA to router R1. OSPF and EIGRP have been mutually redistributed on R1. but the team cannot view the routes on R3. Which action must the team take to resolve the issue?

A : Create a virtual link between R1 and R2.

B : Configure the routers in Area 2 to be in Area 0.

C : Disable stub routing in Area 1.

D : Redistribute connected routes on R3.

Answer: C

Page: 1 / 55

Total 271 Questions | Updated On: Mar 19, 2026

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