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Cisco 300-510 Practice Test - Questions Answers
Question list
List of questions
Related questions
Question 1
Refer to the exhibit.
Which tree does multicast traffic follow?
shared tree
MDT default
source tree
MDT voice
Question 2
Refer to the exhibit.
After you applied these configurations to routers R1 and R2, the two devices could not form a neighbor relationship. Which reason for the problem is the most likely?
The two routers cannot authenticate with one another.
The two routers have the same area ID.
The two routers have the same network ID.
The two routers have different IS-types.
Explanation:
For those asking about the password, area authentication doesn't prevent neighboring to come up because it is carried only in LSP, CSNP and PSNP messages and not in IIH messages.
https://www.cisco.com/c/en/us/support/docs/ip/integrated-intermediate-system-to-intermediatesystem-is-is/13792-isis-authent.html
Question 3
Refer to the exhibit.
Which effect of this configuration is true?
It sets the keepalive timer to 30 seconds and the hold timer to 240 seconds.
It sets the keepalive timer to 30 milliseconds and the hold timer to 240 milliseconds
It sets the hold timer to 30 milliseconds and the keepalive timer to 240 milliseconds
It sets the hold timer to 30 seconds and the keepalive timer to 240 seconds
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/command/irg-crbook/bgps1.html#wp1552800140
Question 4
Refer to the exhibit.
A network operator is working to filter routes from being advertised that are covered under an aggregate announcement. The receiving router of the aggregate announcement block is still getting some of the more specific routes plus the aggregate. Which configuration change ensures that only the aggregate is announced now and in the future if other networks are to be added?
Configure the summary-only keyword on the aggregate command
Set each specific route in the AGGRO policy to drop instead of suppress-route
Filter the routes on the receiving router
Set each specific route in the AGGRO policy to remove instead of suppress-route
Question 5
Refer to the exhibit.
A network operator is getting the route for 10.11.11 0/24 from two upstream providers on #XR3. The network operator must configure #XR3 to force the 10.11.11.0/24 prefix to route via next hop of 10.0.0.9 as primary when available. Which of these can the operator use the routing policy language for, to enforce this traffic forwarding path?
weight of 0 on the prefix coming from 192.168.0.2
lower local preference on the prefix coming from 192.168.0.2
higher local preference on the prefix coming from 192.168.0.1
weight of 100 on the prefix coming from 192.168.0.1
Explanation:
Because Weight is the first attribute in path selection algorithm and is 0 for eBGP routes by default. If we set it to 0, router will continue from weight to the bottom, and when comparing neighbor router IDs it will find 192.168.0.1 less than 192.168.0.2 and st path will be selected as the best
Question 6
Refer to the exhibit.
After troubleshooting an OSPF adjacency issue, routers 1, 2, and 3 have formed OSPF neighbor relationships. Which statement about the configuration is true?
Router 2 receives a Type 5 LSAs from router 1 for its connected subnets
Router 2 uses router 3 as the next hop for 192.168.0.0/24
Router 2 uses router 1 as the next hop for 192.168.0.0/24
Router 2 receives a Type 7 LSAs from router 3 for its connected subnets
Explanation:
From IOS 15.1(2)S onwards, Cisco uses the OSPF path selection order is O > O IA > N1 > E1 > N2 > E2
https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/212608-ospfexternal-path-selection-external-t.html
Question 7
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?
The same interface cannot be advertised in two different IS-IS instances
The IS-IS “ISP” and “ISP2” instances are unrelated and unable to intercommunicate
The configured IS-IS NSEL value is not allowing the routing systems to establish a neighborship
The interface mode ip router is-is command was not included in the script
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_isis/configuration/xe-3s/irsxe-3s-book/irs-instance-vrf.html
Question 8
What is used by SR-TE to steer traffic through the network?
shortest path calculated by IGP
dynamic rules
path policy
explicit maps
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/segmentrouting/configuration/guide/b-seg-routing-cg-asr9k/b-seg-routing-cg-asr9k_chapter_0100.html
Question 9
For which reason can two devices fail to establish an OSPF neighbor relationship?
The two devices have different process IDs
The two devices have different network types
The two devices have different router IDs
The two devices have the same area ID
Explanation:
Reference: https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/13699-29.html
Question 10
Refer to the exhibit.
Which LSA type is indicated by this router output?
type 3 LSA
type 4 LSA
type 1 LSA
type 2 LSA
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