Cisco CCNP Enterprise 300-410 Questions & Answers

• Question 781:

  Refer to the exhibit.

  

  A router is receiving BGP routing updates from multiple neighbors for routes in AS 690.

  What is the reason that the router still sends traffic that is destined to AS 690 to a neighbor other than 10.222.1.1?

  A. The local preference value in another neighbor statement is higher than 250.

  B. The local preference value should be set to the same value as the weight in the route map.

  C. The route map is applied in the wrong direction.

  D. The weight value in another neighbor statement is higher than 200.

  Correct Answer: C

  Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/configuration/xe-3se/3850/irg-xe-3se-3850-book/irg-prefix-filter.html

• Question 782:

  A network administrator recently redistributed RIP routes into an OSPF domain. However, the administrator wants to configure the network so that instead of 32 external type-5 LSAs flooding into the OSPF network, there is only one.

  

  What must the administrator do to accomplish this?

  A. Configure summarization on R1 with area 1 range 172.16.32.0 255.255.224.0

  B. Configure summarization on R1 with summary-address 172.16.32.0 255.255.224.0

  C. Configure area 1 as a stub area with area 1 stub

  D. Configure area 1 as a NSSA area with area 1 stub nssa

  Correct Answer: B

  In many cases, the router doesn't even need specific routes to each and every subnet (for example, 172.16.1.0/24).

  It would be just as happy if it knew how to get to the major network (for example, 172.16.0.0/16) and let another router take it from there. In our telephone network example, the local telephone switch should only need to know to route a phone

  call to the switch for the called area code. Similarly, a router's ability to take a group of subnetworks and summarize them as one network (in other words, one advertisement) is called route summarization. Besides reducing the number of

  routing entries that a router must keep track of, route summarization can also help protect an external router from making multiple changes to its routing table due to instability within a particular subnet.

  For example, let's say that we were working on a router that connected to 172.16.2.0/24. As we were working on the router, we rebooted it several times. If we were not summarizing our routes, an external router would see each time

  172.16.2.0/24 went away and came back. Each time, it would have to modify its own routing table. However, if our external router were receiving only a summary route (i.e., 172.16.0.0/16), then it wouldn't have to be concerned with our work

  on one particular subnet. This is especially a problem for EIGRP, which can create stuck in active (SIA) routes that can lead to a network melt-down.

  Summarization Example We have the following networks that we want to advertise as a single summary route:

  * 172.16.100.0/24 * 172.16.101.0/24 * 172.16.102.0/24 * 172.16.103.0/24 * 172.16.104.0/24 * 172.16.105.0/24 * 172.16.106.0/24

• Question 783:

  A network engineer is configuring a DHCP server to support a specialized application. Which additional DHCP feature must be enabled to support the delivery of various additional parameters to DHCP clients?

  A. modules

  B. vendor extensions

  C. options

  D. Scopes

  Correct Answer: C

• Question 784:

  Which technology uses the many-to-one method of mapping IP addresses?

  A. static NAT

  B. dynamic NAT

  C. NAT-PT

  D. PAT

  Correct Answer: D

• Question 785:

  Refer to the exhibit.

  

  All interfaces on each router are participating in the EIGRP 100 process. Interface Loopback 2 on HQR2 is currently in shutdown mode. An engineer issues the eigrp stub command on router BR1. Which statements about the query messages sent from router HQ-R2 for a route to reach the 12.12.12.12/32 network is true?

  A. Router HQ-R2 sends a query message to the feasible successor for a route to 12.12.12.12/32 network.

  B. BR1 receives query messages from HQ-R2 for a route to 12.12.12.12/32 network

  C. Router HQ-R1 receives query messages from HQ-R2 for a route to 12.12.12.12/32 network.

  D. Router HQ-R1 and BR1 receives query messages from HQ-R2 for a route to 12.12.12/32 network.

  Correct Answer: C

• Question 786:

  Which command enables NAT-PT on an IPv6 interface?

  A. IPv6 nat-pt enable

  B. ipv6 nat

  C. ipv6 nat-pt

  D. ipv6 nat enable

  Correct Answer: B

• Question 787:

  Refer to the exhibit.

  

  Which address would successfully summarize only the networks seen?

  A. 192.168.0.0/24

  B. 192.168.8.0/20

  C. 192.168.8.0/21

  D. 192.168.12.0/20

  E. 192.168.16.0/21

  F. These networks cannot be summarized

  Correct Answer: C

• Question 788:

  Which next hop is going to be used for 172.17.1.0/24 ?

  

  A. 10.0.0.1

  B. 192.168.1.2

  C. 10.0.0.2

  D. 192.168.3.2

  Correct Answer: A

• Question 789:

  Refer to the exhibit. A network engineer executes the show ipv6 ospf database command and is presented with the output that is shown. Which flooding scope is referenced in the link-state type?

  

  A. link-local

  B. area

  C. As (OSPF domain)

  D. reserved

  Correct Answer: B

• Question 790:

  Refer to the exhibit. Which option describes why the EIGRP neighbors of this router are not learning routes that are received from OSPF?

  

  A. The subnet defined in OSPF is not part of area 0.

  B. Default metrics are not configured under EIGRP.

  C. There is no overlap in the subnets advertised.

  D. The routing protocols do not have the same AS number.

  Correct Answer: B