Refer to the exhibit.
 
Excessive routes are flooding from network 150.0.0.0 into AS100. Internet traffic between AS400 and AS300 is working normally. No route controlling mechanism is applied on incoming and outgoing traffic. Which configuration resolves the issue?

A.

B.

C.

D.

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

A. Each ISP must configure MSDP to connect its individual multicast administrative domain to the domains at other ISPs.

B. Each ISP must dedicate a single router to handle multicast traffic between providers.

C. Each ISP must replace its RP assignment with a global RP.

D. Each ISP must configure its network to use PIM-DM.

E. Each ISP must support intradomain multicast routing.

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-В. 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 10.1.1.0/24R2(config)# interface fastethernet 0/0R2(config-if)# ip router isis 100R2(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 32R2(config)# interface fastethernet 0/0R2(config-if)# ip router isis 122R2(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 0/0R1(config-if)# ip router isis 100R1(config-if)# router isis 100 -R1(config-router)# distribute-list gateway List2 inR (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 0.0.0.63R2(config)# access-list 101 deny ip any 0.0.0.0 0.0.0.0R2(config)# interface fastethernet 0/0R2(config-if)# ip router isis 121R2(config-if)# router isis 121 -R2(config-router)# distribute-list 101 in

Refer to the exhibit. Company A established BGP sessions with several ISPs. A network engineer at the company must filter out all traffic except for routes that transit AS 152. The engineer configured the filtering policy "permit _152$_(_[0-9])" on R1, but after applying the configuration, the engineer notices that other routes are still visible. Which action resolves the issue?

A. Add a second filtering policy in the format ip access-list 1 permit ^152_([0-9]+).

B. Add a second filtering policy in the format ip prefix-list 1 permit ^152^.

C. Change the filtering policy to ip explicit-path 1 permit $152^.

D. Change the filtering policy to ip as-path access-list 1 permit _152_.

What is the difference between RPL and route-maps?

A. Unlike RPL, route-maps are supported with IPv4 address families only.

B. Unlike route-maps, only RPL supports extcommunity sets to group extended communities.

C. Unlike route-maps, only RPL is designed for bulk configuration of multiple devices.

D. Unlike RPL, route-maps are designed for BGP protocol only.

Refer to the exhibit. A network engineer just replaced five routers on this OSPF network. When the routing protocol is brought up, R5 cannot reach routes that originate on R1. The engineer verified that all connected links have established neighbor relationships. R5 reaches routes originating on R3 and R4. Which action resolves the issue?

A. Configure each link to be point-to-point.

B. Configure an OSPF virtual link to bridge Area 0 on routers R3 and R4.

C. Configure automatic neighbor discovery on R1 and R5.

D. Configure OSPF to have a contiguous Area 0.

Refer to the exhibit. A network engineer is configuring router R3 to handle multicast streams, but Host-2 cannot send subscription messages to the IPTV source. Which configuration must the engineer apply to router R3 so it passes the IPTV stream to Host-2?

A. R3# configure terminal -R3(config)# no ip pim ssm defaultR3(config)# interface gigabitethernet 1/0/0R3(config-if)# ip pim sparse-modeR3(config-if)# ip igmp version 3R3(config-if)# ip pim ssm defaultR3(config)# interface gigabitethernet 1/0/1R3(config-if)# ip pim sparse-modeR3(config-if)# ip igmp version 3R3(config-if)# ip pim ssm default

B. R3# configure terminal -R3(config)# ip multicast-routingR3(config)# interface gigabitethernet 1/0/0R3(config-if)# ip pim sparse-modeR3(config-if)# ip igmp version 3R3(config)# interface gigabitethernet 1/0/1R3(config-if)# ip pim sparse-modeR3(config-if)# ip igmp version 3R3(config-if)# ip pim ssm default

C. R3(config)# interface gigabitethernet 1/0/0R3(config-if)# ip pim sparse-modeR3(config-if)# ip igmp version 3R3(config)# interface gigabitethernet 1/0/1R3(config-if)# ip pim sparse-modeR3(config-if)# ip igmp version 3

D. R3(config)# interface gigabitethernet 1/0/0R3(config-if)# ip pim sparse-modeR3(config)# interface gigabitethernet 1/0/1R3(config-if)# ip pim sparse-modeR3(config-if)# ip igmp version 3

An engineer is working to implement segment routing protocol on the customer’s core network. Which step should the engineer take before the segment routing is enabled and is running with BGP?

A. Segment routing must be configured with EIGRP

B. Segment routing must be configured with ISIS

C. MPLS must be configured

D. Explicit-null must be configured for all neighbors

DRAG DROP -
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.)
Select and Place:
 

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

A. A dynamic IPv6 address must be configured

B. A dynamic IPv4 address must be configured

C. A static IPv4 address must be configured

D. A static IPv6 address must be configured

E. Each tunnel endpoint must support IPv4 and IPv6

F. Cisco Express Forwarding must be enabled

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

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

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

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

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

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

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

Refer to the exhibit.
 
A network consultant is updating the company’s MPLS solution and configuring several new PE devices to enable full communication among PE devices connected to the network. The updates must ensure the redundancy and scalability of the network. The egress LSR is configured with mpls ldp explicit-null. While configuring the given PE router to be adjacent to the egress LSR, the consultant notices that MPLS forwarding is not working in the network. Which action resolves the issue?

A. Open TCP and UDP ports 179.

B. Configure Cisco Express Forwarding on all routers in the MPLS network.

C. Configure MVRF on all routers in the MPLS network.

D. Open TCP and UDP ports 464.

Refer to the exhibit.
 
Routers R1 and R2 reside in AS 65530, which is multihomed to the Internet. A network engineer expects devices in the AS to use R2 to access the Internet, but they are using R1 as the exit point from the AS. Which action corrects the problem?

A. Add a sequence number to the route map to remove the implicit deny.

B. Change the route map direction in the neighbor statement to out.

C. Configure the route map with a local preference of 200 or higher.

D. Remove the neighbor statements from the address family configuration and activate the neighbor globally on R1.

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?
A.
 
B.
 
C.
 
D.
 

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

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

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

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

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

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

A. R5

B. R3

C. R4

D. R2

What is one of the purposes of a default Multicast Distribution Tree?

A. to handle high-bandwidth source streams

B. to define the RP for PIM sparse mode and the different leafs

C. to offload traffic from data MDT

D. to support control traffic between different VRFs

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

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

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. Remove summarization configuration on R5 and configure it on R4

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

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

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

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. Router 1 receives only one best path from neighbor 192.168.1.1

B. Router 1 sends only one best path to neighbor 192.168.1.1

C. Router 1 sends up to three paths to neighbor 192.168.1.1 for all routes

D. Router 1 sends and receives multiple best paths from neighbor 192.168.1.1

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. Configure the command as-override on R1.

B. Configure the command allowas-in on R2.

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

D. Configure the command as-override on R2.

Refer to the exhibit. While troubleshooting a networking issue, an engineer identified a suboptimal communication issue on route reflector RR2. In the current environment:
•	Router A is a non-route-reflector client for RR1 and RR2.
•	Routers D and E are directly connected iBGP peers.
•	Router F is not an iBGP peer of routers D and E.
Which action resolves the issue?

A. Remove the route-reflector configuration on router RR2.

B. Disable BGP client-to-client reflection on router RR2.

C. Enable next-hop-self for BGP peering on router D.

D. Enable next-hop-self for BGP peering on router C.

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

B. Configure BGP between CE and PE routers.

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

D. Verify the MPLS LSPs.

What is a characteristic of a segment routing mapping server?

A. It serves multiple VRFs.

B. It applies SID mappings from one IGP instance to another IGP instance.

C. It must be placed in the core of the network.

D. It must have an IGP adjacency.

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

A. Make a soft reset to the peer

B. Set up a hello timer higher

C. Set up a hold-down timer higher

D. Set up a minimum hold-down timer higher

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. The routing policies affect BGP-related routes only.

B. If you make edits to an existing routing policy without pasting the full policy into the CLI, the previous policy is overwritten.

C. You can change an existing routing policy by editing individual statements.

D. The routing policies are implemented in a sequential manner.

E. The routing policies are implemented using route maps.

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

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

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

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

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

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. 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.

Refer to the exhibit. OSPF is an interior routing protocol on the network. Routers R4 and R6 are in area 0, and all tunnels are in area 2. R4 is connected to R6 with a 1 Gbps link and with 100 Mbps links to the rest of the LAN. After the most recent maintenance window, a network engineer noticed that R4 is using a suboptimal route toward 10.173.12.10 instead of the route via R6. Which action must the network engineer take to correct reachability toward 10.173.12.10/24?

A. Configure auto-cost reference-bandwidth 1000 under the global OSPF configuration on R4.

B. Configure ip ospf cost 120 under the Gi0/0 interface on R4.

C. Configure ip ospf 2 area 0 under tunnel 3 on both R6 and R5.

D. Configure ip ospf 0 area 0 under tunnel 2 on both R4 and R5.

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. Redistribute the CE1 OSPF routes in the PE1 VRF.

B. Redistribute the CE2 OSPF routes in the PE2 VRF.

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

D. Advertise the VPNv4 routes of the hub in CE1.

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. LFIB

B. LIB

C. RIB

D. FIB

Refer to the exhibit.
 
An engineer is configuring service traffic from router R1 to R6 as shown. Which additional configuration must the engineer implement so that the LDP and SR domains will participate and interwork with each other?

A. Router2(config)# segment-routingRouter2(config-sr)# ldp mapping-serverRouter2(config-sr-ms)# prefix-sid-mapRouter2(config-sr-ms-map)#Router2(config-sr-ms-map-af)# 2.2.2.2/32 500 range 4

B. Router2(config)# segment-routingRouter2(config-sr)# sr mapping-serverRouter2(config-sr-ms)# ldp-sid-mapRouter2(config-sr-ms-map)# address-family ipv4Router2(config-sr-ms-map-af)# 10.1.1.1/32 500 range 50

C. Router2(config)# segment-routingRouter2(config-sr)# mapping-serverRouter2(config-sr-ms)# prefix-sid-mapRouter2(config-sr-ms-map)# address-family ipv4Router2(config-sr-ms-map-af)# 10.1.1.1/32 500 range 50

D. Router2(config)# segment-routingRouter2(config-sr)# ldp mapping-serverRouter2(config-sr-ms)# prefix-sid-mapRouter2(config-sr-ms-map)# address-family ipv4Router2(config-sr-ms-map-af)# 2.2.2.2/32 500 range 40

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

B. Router 2 uses router 3 as the next hop for 192.168.0.0/24

C. Router 2 uses router 1 as the next hop for 192.168.0.0/24

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

Refer to the exhibit.
 
R3 is:
•	failing to accept multicast RP information from Domain-A
•	advertising MSDP SA messages to R1 and R4
•	receiving SA messages only from R4
Which command must the engineer implement to resolve the issue?

A. R3# ip msdp sa-filter in 192.168.3.1

B. R3# no ip msap sa-filter in 192.168.1.1

C. R3# no ip msdp peer 192.168.1.1

D. R3# ip msdp sa-filter out 192.168.1.1

Refer to the exhibit. The green policy is designed with low delay, and the pink policy is designed with low cost. What is the next hop for node A on its way to node D, with the objective of achieving a low delay?

A. 192.168.1.2

B. 192.168.3.2

C. 192.168.3.6

D. 192.168.1.6

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 R3 is 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. The BGP session does not come up between R1 and R2 and between R1 and R3.

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

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

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

DRAG DROP
-
Drag and drop the characteristics from the left onto the corresponding routing protocols on the right.
 

Which difference must an engineer consider when implementing inter-domain and intra-domain multicast routing on the network?

A. Intra-domain routing is dependent on the RP router within the same SP network, but inter-domain routing reduces the dependency on the other SP network.

B. Intra-domain routing allows the service provider to control incoming and outgoing multicast data streams on its network, but inter-domain routing limits the service provider’s control.

C. Inter-domain routing supports policy routing to connect different multicast domains using PIM-SM, but intra-domain routing supports policy routing using PIM-SM only within a single domain.

D. Intra-domain routing uses the PIM and MBGP protocols for multicast routing, but inter-domain routing must use PIM-SSM or MSDP.

Refer to the exhibit. A network engineer must correct the security policy on the EDGE_R router, which is connected to two Tier 1 ISPs. After another engineer added ip as-path access-list 11 permit 11 to EDGE_R, some routes from AS 11 and AS 4832 started to appear in the routing information base (RIB). Traffic control via Community options is disabled on both ISPs.
How should the network engineer update the router configuration on EDGE_R so that only routes for AS 11 are permitted?

A. Configure ip as-path distribution-list 11 deny *[0-9]+$.

B. Configure ip as-path access-list 11 deny_4832$.

C. Configure ip as-path access-list 11 permit_11_.

D. Configure ip as-path prefix-list 11 permit_11$.

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 two actions fix the issue? (Choose two.)

A. Change MD5 to HMAC-SHA1-12

B. Change MD5 to HMAC-ESP

C. Change MD5 to SHA-1

D. Change MD5 to HMAC-MD5

E. Remove the send and accept lifetime under key 1

Refer to the exhibit.
 
When implementing SRv6, which SID does R2 propagate into area 0 for the prefix 2001:DB8:1:1/128?

A. 120

B. 230

C. 110

D. 10

Refer to the exhibit.
 
 
The service provider operations team was alerted that hub site traffic from BGP AS 65101 to AS 65201 uses a non-primary path via the R5-R6 link. IBGP peering between R1 and R2 is up, and no fiber failure has been reported on the R2-R3 link. The team determined that the traffic flow between 10.10.10.1 and 192.168.30.1 is not considering the R1-R2-R3-R4 path.
Which action resolves this issue?

A. Add metric 5 with BGP neighbor 10.10.10.6 on R5 for receiving routes.

B. Change the metric attribute to 20 with neighbor 10.10.10.5 on R1.

C. Set the local-preference to the default value with BGP neighbor 10.10.10.3 on R2 for receiving routes.

D. Change the local-preference attribute to 50 with neighbor 10.10.10.5 on R1.

Refer to the exhibit. IS-IS is the IGP for the network, where routers R1, R2, R3, and R4 are Level 1 routers in Area 12 and routers R5 and R6 are Level 2 routers in area 16. According to the network design, router R1 must send traffic to R6 using R4 as its next hop. To meet the requirement, a network engineer configured route filtering on R2 to prevent the route to R6 from being advertised from R2. However, R1 is still using R2 as the next hop. Which action must the engineer take to resolve the issue?

A. Move all routers into the same IS-IS area.

B. Disable wide area metrics and use only cost to perform the route manipulation.

C. Manipulate link costs to provide the desired routing through R4.

D. Configure routers R5 and R6 as Level 1/2 routers.

Refer to the exhibit. Routers R2, R3, R4, and R5 all reside in the same area, with R1 in a different area. R3 is overutilized, and the engineer wants to reduce its CPU load. The engineer configured router R4 to summarize routes that it receives from R5, but R3 is still receiving all of the R5 routes. Which action resolves the issue?

A. Configure the summary routes on R5.

B. Configure R4 as a Level 1-Level 2 router.

C. Configure R2 as a Level 1 router.

D. Configure R3 in a new area.

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

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

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

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

Refer to the exhibit. Which statement about this configuration is true?

A. Router 1 sends and receives multiple best paths from neighbor 192.168.1.1

B. Router 1 sends up to two paths to neighbor 192.168.1.1 for all routes

C. Router 1 receives up to two paths from neighbor 192.168.1.1 for all routes in the same AS

D. Router 1 receives only the best path from neighbor 192.168.1.1

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.

Refer to the exhibit. An engineer at a large ISP is troubleshooting suboptimal routing on a customer’s IS-IS network with multiple Level 1-2 routers. The network consists of numerous routers that are configured for MPLS. When IS-IS picks the closest Level 1-2 router to exit the area, suboptimal routing occurs in Area 8 and Area 10. The other IGP protocols are running correctly, and the IS-IS adjacency between routers is established. Which action resolves the issue?

A. Redistribute Level 2 prefixes into Level 1 on router 2.

B. Disable advertisement of the default route on router 2.

C. Configure each interface as either Level 1 or Level 2 circuit type on router 1.

D. Configure the router as DIS for each of the interfaces on router 1.

Refer to the exhibit. A network engineer applied configuration on R1 to summarize all ISIS routes, but R2 is still receiving specific routes from R1. The engineer has confirmed that both routers are configured with the correct summarization configuration, but R1 is not sending the correct summary routes. Which configuration must be applied to router R1 to summarize routes within Level 1?

A. R1(config-router)#no summary-address 1.0.0.0 255.0.0.0 level-1

B. R1(config-router)#summary-address 1.0.0.0 255.0.0.0 level-2

C. R1(config-router)#summary-address 1.0.0.0 255.0.0.0 level-1-2

D. R1(config-router)#summary-address 1.0.0.0 255.0.0.0 level-1