Excelling in the Cisco 300-510 SPRI Exam Made Easy

Question #1

In a PIM-SM environment, which mechanism determines the traffic that a receiver receives?

A. he receiver explicitly requests its desired traffic from the RP on the shared tree

B. he receiver explicitly requests traffic from a single source, which responds by forwarding all traffic

C. he RP on the shared tree floods traffic out of all PIM configured interfaces

D. he receiver explicitly requests traffic from each desired source, which responds by sending all traffic

View answer

Correct Answer: A

Question #2

Refer to the exhibit.A network operator is working to filter routes from being advertised that are covered underan 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?

A. onfigure the summary-only keyword on the aggregate command

B. et each specific route in the AGGRO policy to drop instead of suppress-route

C. ilter the routes on the receiving router

D. et each specific route in the AGGRO policy to remove instead of suppress-route

View answer

Correct Answer: A

Question #3

DRAG DROP (Drag and Drop is not supported)An engineer is troubleshooting end-to-end customer traffic across an MPLS VPN service provider network. Which tasks should the engineer use to solve the routing issues? Drag and drop the table types from the left onto the most useful troubleshooting tasks/router types on the right. (Not all options are used.)

A. erify that multicast has been disabled globally

B. erify that PIM-DM is configured on the source interface

C. erify that both source interfaces are reachable from both peers

D. erify that the two MSDP peers allow asymmetric routing

View answer

Correct Answer: A

Question #4

A network engineer is troubleshooting OSPF multiarea. Which Cisco IOS XR feature should the engineer use in order to streamline OSPF issue?

A. ierarchical CLI

B. R support for topology management

C. outing process enabled by default on all interfaces

D. how ip ospf topology command

View answer

Correct Answer: A

Question #5

Refer to the exhibit. A network engineer has divided AS into confederations. Due to repeated ASN, when the 10.0 0.0/8 prefix from R1 arrives to R2, BGP automatically rejects it. What should the engineer do to fix the problem so that BGP allows that prefix on R2?

A. onfigure the command as-override on R1

B. onfigure the command allowas-in on R2

C. onfigure the command allowas-in on all the PE routers

D. onfigure the command as-override on R2

View answer

Correct Answer: B

Question #6

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

A. lients in that cluster must have full mesh connectivity between eBGP peers

B. o client-to-client reflection must be enabled

C. lients in that cluster must have full mesh connectivity between iBGP peers

D. o client-to-client must be disabled

View answer

Correct Answer: C

Question #7

DRAG DROP (Drag and Drop is not supported)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.

A. ee Explanation section for answer

View answer

Correct Answer: A

Question #8

While configuring Cisco NSF awareness, a network engineer enters the bgp graceful-restart command after the BGP session is established in a router that runs IOS XE Software. Graceful restart capabilities are not exchanged. Which two actions should be taken? (Choose two.)

A. S-IS and OSPF use area packets, but only IS-IS uses sequence number packets

B. S-IS and OSPF use link-state update packets, but only OSPF uses link-state ACK packets

C. S-IS and OSPF use Hello packets, but only OSPF uses DBD packets

D. S-IS and OSPF use link-state update packets, but only IS-IS uses DBD packets

View answer

Correct Answer: AD

Question #9

Refer to the exhibit.Why is neighbor 10.1.5.5 stuck in “2WAY” state?

A. outer ID 10

B. SPF authentication has failed between R2 and 10

C. t is an expected behavior when OSPF network type is broadcast

D. SPF parameters (Area ID or hello interval) are mismatched between R2 and 10

View answer

Correct Answer: C

Question #10

Refer to the exhibit.Router 1 is connected to router 2 on interface TenGigE0/1. Which interface provides the alternate path to 172.16.200.9/32 when the link between router 1 and router 2 goes down?

A. enGigE0/1 interface provides the alternate path

B. backup path must be statically installed

C. enGigE0/2 interface provides the alternate path

D. primary path must be manually installed

View answer

Correct Answer: C

Question #11

Refer to the exhibit. While applying the configurations on two routers, an engineer notices that OSPF adjacency between them remains down. Through the ping test, the engineer confirmed that both the routers have Layer 3 reachability between them. Which action should the engineer take to make the adjacencies to full?

A. nable OSPF just inside the router OSPF process, not in the interfaces of any router

B. elete the area 0 authentication message-digest command from the OSPF process in R1

C. nter the command ip ospf authentication in R2 interface

D. elete the area 0 authentication message-digest command from the OSPF process in R2

View answer

Correct Answer: C

Question #12

What can be used to determine a path from the head-end to a tail-end router when implementing SR-TE with a head-end, with little information on the network topology?

A. raffic controller

B. ath computation engine

C. ail-end router

D. NMP server

View answer

Correct Answer: B

Question #13

What is used by SR-TE to steer traffic through the network?

A. hortest path calculated by IGP

B. ynamic rules

C. ath policy

D. xplicit maps

View answer

Correct Answer: C

Question #14

Which statement about enabling segment routing for IGPs is true?

A. egment routing must first be enabled under then routing process and then globally

B. egment routing must first be enabled globally and then under the routing process

C. egment routing can be enabled only under the routing process

D. egment routing can be enabled only globally

View answer

Correct Answer: B

Question #15

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

A. he MED attribute can be applied on R2 to influence R1 to use it as the primary path

B. he local preference attribute can be applied on R3 to influence AS 65513 to use AS 65515 as the secondary path

C. he weight attribute can be applied on R2 to influence AS 65513 to use AS 65515 as the primary path

D. he IGP metric can be manipulated on R1 to allow traffic to be load balanced between R2 and R3

View answer

Correct Answer: D

Question #16

Which two statements about mapping multicast IP addresses to MAC addresses are true? (Choose two.)

A. onfigure OSPFv3

B. nable CDP

C. isable IGMP

D. onfigure IGMPv3

View answer

Correct Answer: AD

Question #17

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?

A. eight of 0 on the prefix coming from 192

B. ower local preference on the prefix coming from 192

C. igher local preference on the prefix coming from 192

D. eight of 100 on the prefix coming from 192

View answer

Correct Answer: A

Question #18

Refer to the exhibit.Which attribute can router 1 alter so that only other iBGP peers prefer to use 192.168.4.2 as the next hop for route 192.168.3.0/24?

A. ED

B. ocal preference

C. rigin

D. eight

View answer

Correct Answer: B

Question #19

Which difference should be considered when intradomain or interdomain multicast routing is implemented?

A. nterdomain multicast routing relies on PIM-DM, and intradomain multicast routing relies on PIM-SM

B. nterdomain multicast routing uses BIDR-PIM to establish neighbor relationships between AS, and intradomain multicast routing uses MSDP

C. network uses intradomain multicast routing without interdomain routing, but networks that use interdomain multicast routing must also apply intradomain routing

D. nterdomain multicast routing requires an IS-IS or OSPF neighbor relationship between the domains, but intradomain multicast routing requires only BGP

View answer

Correct Answer: C

Question #20

Which difference must an engineer consider when choosing whether to implement OSPF or IS-IS as the routing protocol on the network?

A. he OSPF DR election process is deterministic, and the IS-IS DS election process is not deterministic

B. o support fast convergence, OSPF uses the LSA arrival timer and IS-IS uses the PRC-interval timer

C. S-IS supports ordinary, stub, totally-stub, and NSSA areas, but OSPF supports only stub areas

D. S-IS links are associated with either a Level 1 area or a Level 2 area at one time, but OSPF links are associated with multiple areas at one time

View answer

Correct Answer: B

Question #21

Refer to the exhibit. An engineer is addressing an IS-IS design issue which is running within the topology. Alllinks are running on FastEthernet, except the link between R5 and R4, which is Gigabit Ethernet. Which statement about the design is true?

A. 4 prefer to reach R5 using R1 as the next hop

B. ll links have equal cost if the default metric is used

C. 5 prefers to use R4 as the next hop for all routes

D. 1 prefer to use R5 as the next hop to reach R4

View answer

Correct Answer: B

Question #22

Which cost is the default when redistributing routes from BGP to OSPF?

A. 0

B.

C. nfinite

D. utomatic

View answer

Correct Answer: B

Question #23

Which feature is used in multicast routing to prevent loops?

A. TP

B. nverse ARP

C. PF

D. plit horizon

View answer

Correct Answer: C

Question #24

Refer to the exhibit.P1 and PE3 Cisco IOS XR routers are directly connected and have this configuration applied. The BGP session is not coming up. Assume that there is no IP reachability problem and both routers can open tcp port 179 to each other. Which action fixes the issue?

A. hange HMAC-MD5 to HMAC-SHA1-20

B. onfigure the send and accept lifetime under key 1

C. hange HMAC-MD5 to MD5

D. hange HMAC-MD5 to HMAC-SHA1-12

View answer

Correct Answer: B

Question #25

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?

A. he same interface cannot be advertised in two different IS-IS instances

B. he IS-IS “ISP” and “ISP2” instances are unrelated and unable to intercommunicate

C. he configured IS-IS NSEL value is not allowing the routing systems to establish a neighborship

D. he interface mode ip router is-is command was not included in the script

View answer

Correct Answer: A

Question #26

DRAG DROP (Drag and Drop is not supported)Drag and drop the attributes for the BGP route selection on the left into the correct order on the right. Not all options are used.

A. ee Explanation section for answer

View answer

Correct Answer: A

Question #27

Refer to the exhibit.Customer traffic from the branch site to the hub is experiencing packet drops. The engineer verified that:•Customer traffic from the hub is able to reach the branch site.•The connection between PE1 and PE2 is working normally.•Routers P1 and P2 are able to ping devices on the hub site.Which action resolves the issue?

A. edistribute the CE1 OSPF routes in the PE1 VRF

B. edistribute the CE2 OSPF routes in the PE2 VRF

C. dvertise the VPNv4 routes of the branch site in CE2

D. dvertise the VPNv4 routes of the hub in CE1

View answer

Correct Answer: D

Question #28

Refer to the exhibit.How are packets directed through the data plane when SRv6 is implemented?

A. n ordered list of segments is encoded in a routing extension header

B. he MPLS data plane is used to push labels onto IGP routes

C. stack of labels represents an ordered list of segments

D. he packet is encapsulated with a header and trailer encoding the ordered list of segments

View answer

Correct Answer: A

Question #29

What are three requirements for a static IPv6-in-IPv4 tunnel? (Choose three.)

A. onfigure interface Serial1/0 on Router1 as a point-to-point interface

B. onfigure the two routers with different process IDs

C. witch the DR and BDR roles between the two routers

D. onfigure the two routers with different hello and dead timer values

View answer

Correct Answer: BDE

Question #30

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

A. t sets the keepalive timer to 30 seconds and the hold timer to 240 seconds

B. t sets the keepalive timer to 30 milliseconds and the hold timer to 240 milliseconds

C. t sets the hold timer to 30 milliseconds and the keepalive timer to 240 milliseconds

D. t sets the hold timer to 30 seconds and the keepalive timer to 240 seconds

View answer

Correct Answer: A

Question #31

For which reason can two devices fail to establish an OSPF neighbor relationship?

A. he two devices have different process IDs

B. he two devices have different network types

C. he two devices have different router IDs

D. he two devices have the same area ID

View answer

Correct Answer: B

Question #32

After an engineer configures BGP in R1, it starts receiving this message:Which action makes the peering come back up again?

A. ake a soft reset to the peer

B. et up a hello timer higher

C. et up a hold-down timer higher

D. et up a minimum hold-down timer higher

View answer

Correct Answer: D

Question #33

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?

A. lace the routes affected by asymmetric routing in a VRF

B. emove the asymmetric routing and use spanning tree to manage link usage

C. dd a static mroute for routes that are failing

D. onfigure the routers to use PIM-DM instead of PIM-SM

View answer

Correct Answer: C

Question #34

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?

A. outer 2 receives a Type 5 LSAs from router 1 for its connected subnets

B. outer 2 uses router 3 as the next hop for 192

C. outer 2 uses router 1 as the next hop for 192

D. outer 2 receives a Type 7 LSAs from router 3 for its connected subnets

View answer

Correct Answer: C

Question #35

Refer to the exhibit.Router 1 is a core ABR in a Cisco Unified MPLS environment. All of the router 1 BGPpeers are established, but traffic between customers is failing. Which BGP configuration must be added to the configuration?

A. t must be configured for graceful restart

B. t must be configured with a route reflector

C. t must be configured with send labels

D. t must be configured with PIC edge

View answer

Correct Answer: C

Question #36

Refer to the exhibit. An engineer working for a private telecommunication company with an employee id: 1234:09:567 implemented this configuration on Router1, what is the effect of it?

A. outer 1 receives only one best path from neighbor 192

B. outer 1 sends only one best path to neighbor 192

C. outer 1 sends up to three paths to neighbor 192

D. outer 1 sends and receives multiple best paths from neighbor 192

View answer

Correct Answer: D

Question #37

Which command is used to enable BIDIR-PIM under global configuration mode for Cisco IOS XE Sofware?

A. p pim bidir-enable

B. pv4 pim bidir-enable

C. p multicast-routing

D. p pim bidir

View answer

Correct Answer: A

Question #38

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?

A. emove IP PIM SSM and IGMP from interface GigabitEthernet 1/0/1 on R3 and configure under global configuration

B. onfigure IGMP version 3 under interface GigabitEthernet 1/0/1 on R3

C. onfigure IP PIM SSM and IGMP version 2 under interface GigabitEthernet 1/0/1 on R3

D. emove IP PIM SSM from the global configuration on R3 and configure it under the GigabitEthernet 1/0/1 interface

View answer

Correct Answer: B

Question #39

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

A. o support a larger number of eBGP peer sessions

B. o increase the number of routes that can be redistributed between the running IGP and BGP

C. o reduce the number of eBGP routes that must be shared between autonomous systems

D. o reduce the number of iBGP peering sessions

View answer

Correct Answer: D

Question #40

Which two conditions must be met before separate ISPs can provide interdomain multicast routing? (Choose two.)

A. FIB

B. IB

C. IB

D. IB

View answer

Correct Answer: AE

Question #41

Refer to the exhibit.Router 1 has attempted to establish a Cisco MPLS TE tunnel to router 2, but the tunnel has failed. Which statement about this configuration is true?

A. outer 1 must define an explicit path to router 2

B. outer 1 and router 2 must define the RSVP bandwidth reserved on the physical interfaces

C. outer 2 must have a tunnel interface created with router 1 as the destination

D. outer 1 must have Cisco MPLS TE enabled on interface gigabitethernet0/1

View answer

Correct Answer: D

Question #42

Which task is performed when troubleshooting LDP?

A. xecute the ping utility to generate information about the MAC addresses used along the path

B. erify that MPLS is disabled globally and enabled on the necessary interfaces in a per-interface basis

C. xecute the traceroute utility to generate information about the labels used along the path

D. erify that Cisco Express Forwarding has been disabled on the network

View answer

Correct Answer: C

Question #43

Refer to the exhibit.A network engineer configured routers R1 and R5 to run in IS-IS Level 1 mode and router R6 to run in IS-IS Level 2 mode. All other routers are running as Level 1 / Level 2 routers. An engineer expects traffic from R1 to R6 to pass via R2, but IS-IS routing has calculated the best path via R4. Which action corrects the problem?

A. onfigure all routers as Level 1 routers

B. emove the link metric for the link from router R1 to router R2

C. hange the link metric for the link from router R1 to router R2 to 1

D. onfigure all routers as Level 1 / Level 2 routers

View answer

Correct Answer: C

Question #44

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. outes that have passed through AS 65517 have the local preference set to 150

B. outes that have originated through AS 65517 have the local preference set to 150

C. outes directly attached to AS 65517 have the local preference set to 150

D. outes that have passed through AS 65517 have the local preference set to 150 and the traffic is denied

View answer

Correct Answer: A

Question #45

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. nly the administratively scoped range is permitted

B. nly ASM is permitted

C. nly the default SSM range is permitted

D. nly GLOP is permitted

View answer

Correct Answer: C

Question #46

You have configured routing policies on a Cisco IOS XR device with routing policy language. Which two statements about the routing policies are true? (Choose two.)

A. outer 1 sends and receives multiple best paths from neighbor 192

B. outer 1 sends up to two paths to neighbor 192

C. outer 1 receives up to two paths from neighbor 192

D. outer 1 receives only the best path from neighbor 192

View answer

Correct Answer: CD

Question #47

Refer to the exhibit.After configuring IS-IS on routers R1 and R2, an engineer notices that only the loopback interface at 2000:1::1 /96 is known to router R2. Which change must be made so that only Loopback2 is advertised from R1 to R2?

A. onfigure the router isis area1 command under the Loopback0 interface on R1

B. emove the advertise passive-only command under the IS-IS address family ipv6 configuration

C. emove the ipv6 router isis area1 command under the Loopback2 interface on R1

D. emove the passive-interface Loopback0 command under the router isis area1 configuration

View answer

Correct Answer: C

Question #48

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. onfigure all router interfaces to be process-switched by increasing the query interval

B. emove ip igmp join-group command on all unnecessary interfaces

C. emove unnecessary members from the IGMP group

D. onfigure ip igmp static-group command on all interfaces

View answer

Correct Answer: B

Question #49

Refer to the exhibit.Which router does R1 install as an alternate next hop when trying to reach R3 if LFA is enabled?

A. 5

B. 3

C. 4

D. 2

View answer

Correct Answer: D

Question #50

Refer to the exhibit. An administrator is troubleshooting Internet access issues on a customer’s network. After applying this ISIS configuration to R1, the administrator notices that it fails to redistribute the default route into IS-IS. After checking the connectivity between the ISIS router and the ISP router the engineer confirmed there is Layer 3 connectivity between them. Which action should be taken to correct the problem?

A. onfigure R1 as a Layer 1 router

B. dd the default-information originate command to the configuration

C. onfigure the default route under any routing protocol other than IS-IS

D. ssociate the default route with a VRF

View answer

Correct Answer: B

Question #51

A network operator working for a telecommunication company with an employee id: 4074:92:707 is planning to implement the Nonstop Forwarding (NSR) feature on the customer’s core network. After getting the configuration ready for NSR. on which router should the operator implement NSR changes?

A. n the CE router

B. n the ASBR router

C. n the ABR router

D. n the PE router

View answer

Correct Answer: D

Question #52

What are two features of dual-stack? (Choose two.)

A. xecute the lp bgp-community new-format command in Router1

B. emove the lp bgp-community new-format command in Router1

C. dvertise the route to Router2 as standard community

D. dvertise the route to Router2 as extended community

View answer

Correct Answer: AB

Question #53

An engineer is troubleshooting a connectivity issue across the MPLS network and is verifying the forwarding behavior of packets. Which table does the engineer look at to verify the forwarding behavior of an IP packet as it enters the MPLS network at the ingress LSR?

A. ee Explanation section for answer

View answer

Correct Answer: A

Question #54

Which output from the show isis interface command helps an engineer troubleshoot an IS-IS adjacency problem on a Cisco IOS-XR platform?

A. etric

B. riority

C. ircuit type

D. ello interval

View answer

Correct Answer: C

Question #55

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?

A. he two routers cannot authenticate with one another

B. he two routers have the same area ID

C. he two routers have the same network ID

D. he two routers have different IS-types

View answer

Correct Answer: C

Question #56

Refer to the exhibits. All links inside the network are configured at a default cost of one inside the fully converged OSPF domain. Given the configuration from XR1, which interface does traffic from XR1 that is destined to the loopback interface of XR6 select for the exiting interface?

A. nterface GigabitEthernet 0/0

B. nterface GigabitEthernet 0/1

C. nterface GigabitEthernet 0/0

D. nterface GigabitEthernet 0/1

View answer

Correct Answer: C

Question #57

Refer to the exhibit. CE1 and CE2 cannot communicate through the service provider BGP peering is established between PE1 and PE2. IS-IS is the only routing protocol running in the service provider core. What step can be done to troubleshoot the issue?

A. witch the IGPs running in the core from IS-IS to OSPF to support a Cisco MPLS TE tunnel from PE1 to PE2

B. onfigure BGP between CE and PE routers

C. onfirm that IS-IS is running with metric-style narrow

D. erify the MPLS LSPs

View answer

Correct Answer: D

Question #58

Refer to the exhibit.Router 1 has established an SR-TE tunnel with router 2. Which statement describes this configuration?

A. outer 1 has a list of labels used to explicitly lay out a path to router 2

B. outer 1 and router 2 have a bidirectional tunnel set up with dynamic path selection

C. outer 1 is the head-end tunnel and has dynamically chosen a path to router 2

D. outer 2 is the head-end tunnel and has explicitly set a path to router 1

View answer

Correct Answer: C

Question #59

For which reason can two BGP peers fail to establish a neighbor relationship?

A. heir BGP send-community strings are misconfigured

B. heir BGP timers are mismatched

C. heir remote-as numbers are misconfigured

D. hey are both activated under an IPv4 address family

View answer

Correct Answer: C

Question #60

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?

A. outer 1 must have the keyword subnets included in the redistribution command for all EIGRP routes to be redistributed

B. outer 1 must remove the AS number 1 from the redistribution command for all EIGRP routes to be redistributed

C. outer 1 must have the keyword ospf-metric included in the redistribution command for all EIGRP routes to be redistributed

D. outer 1 must have the keyword metric-type 1 included in the redistribution command for all EIGRP routes to be redistributed

View answer

Correct Answer: A

Question #61

Refer to the exhibit. A network engineer applied configuration on R5 to summarize all OSPF routes, but R4 is still receiving specific routes from R5. The engineer has confirmed that both R5 and R4 routers are configured with correct summarization configuration, but R5 is not sending the summary routes. What action must the engineer take to fix the problem?

A. emove summarization configuration on R5 and configure it on R4

B. lear link-state database on both R4 and R5 routers for summarization to work

C. onfigure a sham link between R4 and R5 to support summarization within Area 2

D. ove R4 and R5 in separate areas as now they maintain the same link-state database

View answer

Correct Answer: D

Question #62

Refer to the exhibit.Which tree does multicast traffic follow?

A. hared tree

B. DT default

C. ource tree

D. DT voice

View answer

Correct Answer: B

Question #63

What is the purpose of a BGP confederation?

A. t reduces the number of iBGP peers and increases stability

B. t improves service by increasing the number of simultaneous iBGP peering sessions

C. t redirects traffic away from route reflectors, which reduces their operating load

D. t limits the number of routes a device receives from its peers, which reduces CPU load

View answer

Correct Answer: A

Question #64

Which statement about BFD on Cisco IOS XR Software is true?

A. isco IOS XR router must use LDP to route back to the Cisco IOS router to establish the peer relationship

B. isco IOS XR Software does not support BFD multihop for IPv4

C. isco IOS XR router must use dynamic routing or a static route back to the Cisco IOS router to establish the peer relationship

D. FD is not compatible between Cisco IOS XR and Cisco IOS Software

View answer

Correct Answer: C

Question #65

Refer to the exhibit. While configuring router 2 with all the default values, a network engineer cannot see any route received in router 1. How should the engineer solve the issue?

A. odify the IP address or mask of the interface to a valid one

B. et up a priority different than 0 in the interface

C. odify the router ID to be the interface IP on the serial

D. et the network type in S1/0 to point-to-point

View answer

Correct Answer: A

Question #66

Refer to the exhibit. The extension header of the IPv6 header is ignored when which value is equal to zero?

A. egments Left

B. dr Ext Len

C. outing Type

D. ext Header

View answer

Correct Answer: A

Question #67

Refer to the exhibit.R1 is directly connected to R2 and R3. R1 is in BGP AS 123, R2 is in BGP AS 2, and R3is in BGP AS 3. Assume that there is no connectivity issue between R1, R2 and R1, R3. Which result between BGP peers R1, R2 and R1, R3 is true?

A. he BGP session does not come up between R1 and R2 and between R1 and R3

B. he BGP session comes up between R1 and R2 and between R1 and R3

C. he BGP session comes up between R1 and R3, but not between R1 and R2

D. he BGP session comes up between R1 and R2, but not between R1 and R3

View answer

Correct Answer: B

Question #68

Refer to the exhibit. Routers RA and RB are IS-IS peers configured for NSF, but router RC is an IS-IS peer without NSF capability. If RA undergoes processor switchover, what is the effect on the network environment?

A. f RC is operating without the Cisco configuration option, only 2 routers tear down their peering relationships and re-establish peering

B. ll peer relationships remain up, but the link-state database is rebuilt on each device

C. f RC is operating without the Cisco configuration option, all three routers tear down their peering relationships and re-establish peering

D. ll peer relationships remain up and the link-state database is unchanged

View answer

Correct Answer: B

Question #69

Refer to the exhibit.An engineer working on a client’s network is trying to solve the BGP community issue on R1 and R2 routers. After displaying the BGP entries, the engineer notices that both routers still have different outputs. Which action must the engineer perform to any of the routers to correct the problem and get the same output?

A. vailability

B. calability

C. ecurity

D. utomatability

View answer

Correct Answer: A

Question #70

Refer to the exhibit. Which LSA type is indicated by this router output?

A. ype 3 LSA

B. ype 4 LSA

C. ype 1 LSA

D. ype 2 LSA

View answer

Correct Answer: C

Question #71

Refer to the exhibit. A network operator is configuring BGP PIC on CE1 on already established neighborships with PE1 and PE2 inside the fully converged MPLS network. Which element needs to be implemented to make this feature function effectively?

A. idirectional Forwarding Detection must be applied to the upstream facing BGP interfaces

B. he operator must ensure that all prefixes have the same next-hop from PE1 and PE2 for BGP PIC

C. reserved BGP community of 1:10 must be used to denote the PIC feature set to the routing protocol

D. GP import/export policies must be applied on all devices for the routes needing BGP for PIC

View answer

Correct Answer: A

Question #72

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

A. ommit the configuration

B. oll back the configuration

C. erge the configuration

D. ave the running configuration

View answer

Correct Answer: A

Question #73

Refer to the exhibit.A network engineer implemented this segment routing configuration. Which statement about the output is true?

A. his range conflicts with the segment routing local block range

B. he device must be reloaded for these ranges to be allocated and used

C. he default segment routing global block range is being used on this device

D. nondefault segment routing global block range is being used on this device

View answer

Correct Answer: D

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