Question 1

What is the purpose of a BGP confederation?

Accepted Answer

A)  It reduces the number of iBGP peers and increases stability 
B)  It improves service by increasing the number of simultaneous iBGP peering sessions 
C)  It redirects traffic away from route reflectors, which reduces their operating load 
D)  It limits the number of routes a device receives from its peers, which reduces CPU load 
A)  It reduces the number of iBGP peers and increases stability 
B)  It improves service by increasing the number of simultaneous iBGP peering sessions 
C)  It redirects traffic away from route reflectors, which reduces their operating load 
D)  It limits the number of routes a device receives from its peers, which reduces CPU load

Question 2

After you change the IP address on an IOS XR router, you cannot ping the new address. Which step did you forget to complete?

Accepted Answer

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

Question 3

You have configured MSDP peering between two autonomous systems that pass traffic between two sites, but the peering has failed to come up. Which task do you perform to begin troubleshooting the problem?

Accepted Answer

A)  Verify that multicast has been disabled globally 
B)  Verify that PIM-DM is configured on the source interface 
C)  Verify that both source interfaces are reachable from both peers 
D)  Verify that the two MSDP peers allow asymmetric routing 
A)  Verify that multicast has been disabled globally 
B)  Verify that PIM-DM is configured on the source interface 
C)  Verify that both source interfaces are reachable from both peers 
D)  Verify that the two MSDP peers allow asymmetric routing

Question 4

Which feature is used in multicast routing to prevent loops?

Accepted Answer

A)  STP 
B)  inverse ARP 
C)  RPF 
D)  split horizon 
A)  STP 
B)  inverse ARP 
C)  RPF 
D)  split horizon

Question 5

Refer to the exhibit. CE1 is the gateway router into the provider network via PE1. A network operator must inject a default route into OSPF area 0. All devices inside area 0 must be able to reach PE1. Which configuration achieves this goal?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 6

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?

Accepted Answer

A)  The two routers cannot authenticate with one another. 
B)  The two routers have the same area ID. 
C)  The two routers have the same network ID. 
D)  The two routers have different IS-types. 
A)  The two routers cannot authenticate with one another. 
B)  The two routers have the same area ID. 
C)  The two routers have the same network ID. 
D)  The two routers have different IS-types.

Question 7

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

Accepted Answer

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

Question 8

Refer to the exhibit. An engineer is troubleshooting an OSPF issue. Router 1 has a neighbor relationship with router 2. Only router 1 classful EIGRP routes can be seen on router 2. In order for all EIGRP routes to be redistributed correctly, which action should be taken?

Accepted Answer

A)  Router 1 must have the keyword subnets included in the redistribution command for all EIGRP routes to be redistributed. Router 1 must have the keyword subnets included in the redistribution command for all EIGRP routes to be redistributed. 
B)  Router 1 must remove the AS number 1 from the redistribution command for all EIGRP routes to be redistributed. 
C)  Router 1 must have the keyword ospf-metric included in the redistribution command for all EIGRP routes to be redistributed. ospf-metric 
D)  Router 1 must have the keyword metric-type 1 included in the redistribution command for all EIGRP routes to be redistributed. metric-type 1 included in the redistribution command for all EIGRP routes to be redistributed. 
A)  Router 1 must have the keyword subnets included in the redistribution command for all EIGRP routes to be redistributed. Router 1 must have the keyword subnets included in the redistribution command for all EIGRP routes to be redistributed. 
B)  Router 1 must remove the AS number 1 from the redistribution command for all EIGRP routes to be redistributed. 
C)  Router 1 must have the keyword ospf-metric included in the redistribution command for all EIGRP routes to be redistributed. ospf-metric 
D)  Router 1 must have the keyword metric-type 1 included in the redistribution command for all EIGRP routes to be redistributed. metric-type 1 included in the redistribution command for all EIGRP routes to be redistributed.

Question 9

Refer to the exhibit. All routers on this network have been configured with PIM-SM, and R1 is the rendezvous point. However, when asymmetric routing is implemented to modify link usage, the network begins to drop certain multicast traffic. Which action corrects the problem?

Accepted Answer

A)  Place the routes affected by asymmetric routing in a VRF 
B)  Remove the asymmetric routing and use spanning tree to manage link usage 
C)  Add a static mroute for routes that are failing 
D)  Configure the routers to use PIM-DM instead of PIM-SM 
A)  Place the routes affected by asymmetric routing in a VRF 
B)  Remove the asymmetric routing and use spanning tree to manage link usage 
C)  Add a static mroute for routes that are failing 
D)  Configure the routers to use PIM-DM instead of PIM-SM

Question 10

Refer to the exhibit. Which effect of this configuration is true?

Accepted Answer

A)  It sets the keepalive timer to 30 seconds and the hold timer to 240 seconds. 
B)  It sets the keepalive timer to 30 milliseconds and the hold timer to 240 milliseconds 
C)  It sets the hold timer to 30 milliseconds and the keepalive timer to 240 milliseconds 
D)  It sets the hold timer to 30 seconds and the keepalive timer to 240 seconds 
A)  It sets the keepalive timer to 30 seconds and the hold timer to 240 seconds. 
B)  It sets the keepalive timer to 30 milliseconds and the hold timer to 240 milliseconds 
C)  It sets the hold timer to 30 milliseconds and the keepalive timer to 240 milliseconds 
D)  It sets the hold timer to 30 seconds and the keepalive timer to 240 seconds

Question 11

Refer to the exhibit. An engineer has configured all routers in the environment to run IS-IS Level 1 and Level 2 routing. The engineer wants traffic from R1 to R5 to pass via R2, but IS-IS routing has calculated the best path via R4. Which action corrects the problem?

Accepted Answer

A)  Set the link metric on R2 for the links from router R2 to routers R3 and R4 to 30 or more 
B)  Set the link metric for the link from router R1 to router R4 to 30 or more 
C)  Configure routers R1, R4, and R5 for Level 2 routing only 
D)  Configure routers R1, R2, and R5 for Level 1 routing only 
A)  Set the link metric on R2 for the links from router R2 to routers R3 and R4 to 30 or more 
B)  Set the link metric for the link from router R1 to router R4 to 30 or more 
C)  Configure routers R1, R4, and R5 for Level 2 routing only 
D)  Configure routers R1, R2, and R5 for Level 1 routing only

Question 12

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?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 13

Refer to the exhibit. Routers within the cluster are not receiving the desired prefixes. What must be done to fix the issue?

Accepted Answer

A)  Clients in that cluster must have full mesh connectivity between eBGP peers 
B)  No client-to-client reflection must be enabled 
C)  Clients in that cluster must have full mesh connectivity between iBGP peers 
D)  No client-to-client must be disabled 
A)  Clients in that cluster must have full mesh connectivity between eBGP peers 
B)  No client-to-client reflection must be enabled 
C)  Clients in that cluster must have full mesh connectivity between iBGP peers 
D)  No client-to-client must be disabled

Question 14

Refer to the exhibit. A customer reports that Host-1 is failing to receive streaming traffic from the IPTV source. The engineer has confirmed that hosts on router R2 are receiving traffic normally and that Host-1 is correctly sending subscription messages to join the IPTV stream. Which action must the engineer take to correct the problem?

Accepted Answer

A)  Remove IP PIM SSM and IGMP from interface GigabitEthernet 1/0/1 on R3 and configure under global configuration 
B)  Configure IGMP version 3 under interface GigabitEthernet 1/0/1 on R3 
C)  Configure IP PIM SSM and IGMP version 2 under interface GigabitEthernet 1/0/1 on R3 
D)  Remove IP PIM SSM from the global configuration on R3 and configure it under the GigabitEthernet 1/0/1 interface 
A)  Remove IP PIM SSM and IGMP from interface GigabitEthernet 1/0/1 on R3 and configure under global configuration 
B)  Configure IGMP version 3 under interface GigabitEthernet 1/0/1 on R3 
C)  Configure IP PIM SSM and IGMP version 2 under interface GigabitEthernet 1/0/1 on R3 
D)  Remove IP PIM SSM from the global configuration on R3 and configure it under the GigabitEthernet 1/0/1 interface

Exam 14: Implementing Cisco Service Provider Advanced Routing Solutions (SPRI)

What is the purpose of a BGP confederation?

After you change the IP address on an IOS XR router, you cannot ping the new address. Which step did you forget to complete?

You have configured MSDP peering between two autonomous systems that pass traffic between two sites, but the peering has failed to come up. Which task do you perform to begin troubleshooting the problem?

Which feature is used in multicast routing to prevent loops?

Refer to the exhibit. CE1 is the gateway router into the provider network via PE1. A network operator must inject a default route into OSPF area 0. All devices inside area 0 must be able to reach PE1. Which configuration achieves this goal?

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?

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

Refer to the exhibit. An engineer is troubleshooting an OSPF issue. Router 1 has a neighbor relationship with router 2. Only router 1 classful EIGRP routes can be seen on router 2. In order for all EIGRP routes to be redistributed correctly, which action should be taken?

Refer to the exhibit. All routers on this network have been configured with PIM-SM, and R1 is the rendezvous point. However, when asymmetric routing is implemented to modify link usage, the network begins to drop certain multicast traffic. Which action corrects the problem?

Refer to the exhibit. Which effect of this configuration is true?

Refer to the exhibit. An engineer has configured all routers in the environment to run IS-IS Level 1 and Level 2 routing. The engineer wants traffic from R1 to R5 to pass via R2, but IS-IS routing has calculated the best path via R4. Which action corrects the problem?

Refer to the exhibit. Routers within the cluster are not receiving the desired prefixes. What must be done to fix the issue?

Supporting Cisco Data Center System Devices (DCTECH)

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