Cisco 300-510 Exam Dumps

Cisco 300-510 Sample Question Answers

Cisco 300-510 Sample Questions

Question # 1

An engineer is troubleshooting slow performance issues on a customer’s network after the last multicast configuration change was applied on it While checking the running configuration on the router the engineer notices there are many ip igmp join-group commands applied on several interfaces of the router which caused the high CPU utilization usage. What action must the engineer take to solve this issue? 

A. Configure ip igmp static-group command on all interfaces  
B. Remove ip igmp join-group command on all unnecessary interfaces  
C. Configure all router interfaces to be process-switched by increasing the query interval  
D. Remove unnecessary members from the IGMP group  

Answer: b

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Question # 2

Refer to the exhibit.   A network operators configuring BGP PIC on CE1 on already established neighborships with PE1ana PE2 inside the fully converged MPLS network Which element needs to be implemented to make this feature function effectively? 

A. Bidirectional Forwarding Detection must be applied to the upstream facing BGP interfaces. 
B. The operator must ensure that all prefixes have the same next-hop from PE1 and PE2 for BGP PICA reserved BGP
C. community of 1 10 must be used to denote the PIC feature set to the routing protocol  
D. BGP import export policies must be applied on all devices for the routes needing BGP for PIC 

Answer: A

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Question # 3

For which reason do you deploy BGP confederations within a BGP transit backbone? 

A. to support a larger number of eBGP peer sessions  
B. to increase the number of routes that can be redistributed between the running IGP and BGP 
C. to reduce the number of eBGP routes that must be shared between autonomous systems 
D. to reduce the number of iBGP peering sessions  

Answer: D

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Question # 4

Explanation: Some level of load balancing is achieved by default as BGP prefers shortest AS_PATH for certain prefix (Cisco BGP path selection algorithm - rule 4) . If 1-7 rules gives no preference for certain prefix then with rule 8. Prefer lowest IGP metric to BGP next hop we can force traffic to R2 or R3 influencing load distribution.

A. commit the configuration  
B. roll back the configuration  
C. merge the configuration  
D. save the running configuration  

Answer: A

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Question # 5

Refer to the exhibit.   An engineer has successfully fixed BGP peering issue. R1 has an established eBGP peering with R2 and R3. Which mechanism should the engineer apply in order to steer the traffic correctly? 

A. The MED attribute can be applied on R2 to influence R1 to use it as the primary path.  
B. The local preference attribute can be applied on R3 to influence AS 65513 to use AS 65515 as the secondary path.
C. The weight attribute can be applied on R2 to influence AS 65513 to use AS 65515 as the primary path.
D. The IGP metric can be manipulated on R1 to allow traffic to be load balanced between R2 and R3

Answer: D

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Question # 6

Refer to the exhibit.   Which two commands must the engineer configure for the company's PIM-PIM network to enable Auto-RP mappings to be sent over the FastEthernet0/0 interface without affecting normal operation? (Choose two) 

A. enable auto-rp listener  
B. enable sparse-dense mode  
C. enable sparse-mode  
D. enable Auto-RP announcements  
E. enable dense mode  

Answer: A,B

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Question # 7

Refer to the exhibit.   An engineer is troubleshooting IS-IS configuration between two areas. IS-IS Area-A network 30.1.1.0/24 is leaked into IS-IS Area-. R2 is failing to filter the route updates from network 10.1.1.0/24. Which configuration must the engineer apply to resolve the issue? 

A. R2(config)# ip prefix-list List2 seq 5 deny 10.1.1.0/24 R2(config)# interface fastethernet 0/0 R2(config-if)# ip router isis 100 R2(config-if)# router isis 100 R2(config-router)# distribute-list gateway List2 in
B. R2(config)# ip prefix-list List1 seq 3 deny 10.1.1.0/24R2(config)# ip prefix-list List1 seq 5 permit 30.1.1.0/24 ge 25 1eR2(config)# ip prefix-list List1 seq 10 permit 0.0.0.0/le 32 R2(config)# interface fastethernet 0/0 R2(config-if)# ip router isis 122 R2(config-if)# router isis 122 R2(config-router)# distribute-list prefix List1 in        
C. R1(config)# ip prefix-list List2 seq 5 deny 10.1.1.0/24R1(config)# interface fastethernet 0/0 R1(config-if)# ip router isis 100 R1(config-if)# router isis 100 R1(config-router)# distribute-list gateway List2 in R (config-if)# router isis 150 R1(config-router)# distribute-list route-map Map1 in        
D. R2(config)# access-list 101 deny ip any 10.1.1.0 0.0.0.127R2(config)# access-list 101 permit ip any 30.1.1.0 0.0.0.63 R2(config)# access-list 101 deny ip any 0.0.0.0 0.0.0.0 R2(config)# interface fastethernet 0/0 R2(config-if)# ip router isis 121 R2(config-if)# router isis 121 R2(config-router)# distribute-list 101 in         

Answer: C

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Question # 8

Refer to the exhibit.  A service provider technician is working on a multicast issue for a customer. While checking the multicast table, the technician notices that no flags are present for the (1.1.1.1, 239.1.1.1) entry, yet flags are present for the (1.1.1.1, 232.1.1.1) entry. Which factor might explain this issue?

A. Only the administratively scoped range is permitted  
B. Only ASM is permitted  
C. Only the default SSM range is permitted  
D. Only GLOP is permitted  

Answer: C

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Question # 9

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  

Answer: D

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Question # 10

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 are 5. Which action must be taken to fix the problem?

A. Configure an additional filter-list on R1 for inbound traffic to allow external router into area 5.
B. Reconfigure the filter-list statement to apply in the inbound direction  
C. Change the prefix-list action to permit and add an explicit deny statement for network 192.168.1.0/24 
D. Add a permit statement for 0.0.0.0/0 le 32 to the end of the prefix-list 10 override the implicit deny. 

Answer: D

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