300-510 Online Practice Questions and Verified Answers

Question 1 Single choice

Refer to the exhibit.

After troubleshooting BGP traffic steering issue, which action did the network operator take to achieve the correct effect of this configuration?

A
Routes that have passed through AS 65517 have the local preference set to 150.
B
Routes that have originated through AS 65517 have the local preference set to 150.
C
Routes directly attached to AS 65517 have the local preference set to 150.
D
Routes that have passed through AS 65517 have the local preference set to 150 and the traffic is denied.

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Correct answer: A

Question 2 Single choice

The ISP_A network is configured with PIMv2 in sparse mode. The engineering team at ISP_A must implement multicast support following RFC 5059 in the network. The RP priority will be 0, and the solution must require limited supervision from the operations team.

Which action must the team take to meet the requirements?

A
Implement Auto-RP on the candidate RP and the mapping agent only.
B
Implement Static RP across all routers in the network.
C
Implement Bootstrap Router in the network core.
D
Implement Anycast-RP on edge routers only.

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Correct answer: C

Question 3 Single choice

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

A
neighbor-is
B
dfa-regtex
C
ios-regex
D
Length

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Correct answer: C

Question 4 Single choice

A network engineer recently deployed a wireless network for users at a new office to join video conferences wirelessly. The existing network consists of routers that are configured for EIGRP and BGP, which are located at several data centers in different physical locations. The engineer configured PIM-SSM within a single domain from a single source. However, during the testing phase, the video conference failed to work for any of the users. The IPs are reachable and firewalls in the network are configured correctly to allow the traffic.

Which action resolves the issue?

A
Configure PIM sparse mode to replace PIM-SSM.
B
Configure PIM dense mode to replace PIM-SSM.
C
Configure the devices to send join messages toward a multicast SPT.
D
Configure PIM dense mode with multidomain multicast.

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Correct answer: C

Question 5 Single choice

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.

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Correct answer: C

Question 6 Single choice

Refer to the exhibit.

An engineer applied the configuration on R1 to prevent network 192.168.1.0/24 from being propagated outside of area 5. After the change, users have reported they are not able to access any of the application servers that were working before. While checking the routing table of the peer router, the engineer notices R1 stopped propagating any routes outside area 5.

Which action must be taken to fix the problem?

A
Change the prefix-list action to permit and add an explicit deny statement for network 192.168.1.0/24
B
Add a permit statement for 0.0.0.0/0 le 32 to the end of the prefix-list to override the implicit deny
C
Reconfigure the filter-list statement to apply in the inbound direction
D
Configure an additional filter-list on R1 for inbound traffic to allow external routes into area 5

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Correct answer: B

Question 7 Single choice

What is a requirement of PIM-SM?

A
It requires Cisco Express Forwarding to be enabled.
B
It must be enabled on loopback interfaces only
C
It requires OSPF to be configured on the network.
D
It must use an RP

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Correct answer: D

Question 8 Single choice

Refer to the exhibit.

Customer A and customer B are connecting through a service provider network with these requirements.

R1 acts as the mapping server to connect 10 0 0.0/30 and 172.16.0.0/30 networks.
R1 and R2 are using nondefault SRG8 range to allocate SID.
R2 ads as the mapping client for transient traffic originating from customer A.

Which configuration meets the requirements?

A
Remove allocation of prefix SlDs for 10.0.0.0/30 and 172.16.0.0/30 on R1.
B
Configure segment-routing prefix-sid-map advertise-local on R1
C
Allocate prefix SIDs for 10.0.0.0-30 and 172.16 0.0/30 subnets on R2
D
Configure segment-routing prefix-sid-map advertise-local on R2.

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Correct answer: B

Question 9 Single choice

Refer to the exhibit.

After creating dynamic neighbors for the range specified, the network administrator with an employee ID: 4698:80:283 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.

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Correct answer: C

Question 10 Drag & drop

DRAG DROP

Compare different features between OSPFv2 and OSPFv3. Drag and drop the descriptions of OSPF from the left onto the correct OSPF versions on the right.

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