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  5. Implementing Cisco Enterprise Advanced Routing and Services (300-410 ENARSI) Questions and Answers

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Viewing page 9 out of 13 pages
Viewing questions 121-135 out of questions
Questions # 121:

What are two functions of MPLS Layer 3 VPNs? (Choose two.)

Options:
A.

LDP and BGP can be used for Pseudowire signaling.

B.

It is used for transparent point-to-multipoint connectivity between Ethernet links/sites.

C.

BGP is used for signaling customer VPNv4 routes between PE nodes.

D.

A packet with node segment ID is forwarded along with shortest path to destination.

E.

Customer traffic is encapsulated in a VPN label when it is forwarded in MPLS network.

Expert Solution
Questions # 122:

What does the PE router convert the Ipv4 prefix to within an MPLS VPN?

Options:
A.

VPN-IPv4 prefix combined with the 64-bit route distinguisher

B.

48-bit route combining the IP and PE router-id

C.

prefix that combines the ASN, PE router-id, and IP prefix

D.

eBGP path association between the PE and CE sessions

Expert Solution
Questions # 123:

What are two functions of IPv6 Source Guard? (Choose two.)

Options:
A.

It uses the populated binding table for allowing legitimate traffic.

B.

It works independent from IPv6 neighbor discovery.

C.

It denies traffic from unknown sources or unallocated addresses.

D.

It denies traffic by inspecting neighbor discovery packets for specific pattern.

E.

It blocks certain traffic by inspecting DHCP packets for specific sources.

Expert Solution
Questions # 124:

An engineer configured access list NON-CISCO in a policy to influence routes

Question # 124

What are the two effects of this route map configuration? (Choose two.)

Options:
A.

Packets are not evaluated by sequence 10.

B.

Packets are evaluated by sequence 10.

C.

Packets are forwarded to the default gateway.

D.

Packets are forwarded using normal route lookup.

E.

Packets are dropped by the access list.

Expert Solution
Questions # 125:

Question # 125

Refer to the exhibit. R1 and R2 cannot establish an EIGRP adjacency. Which action establishes EIGRP adjacency?

Options:
A.

Remove the current autonomous system number on one of the routers and change to a different value.

B.

Remove the passive-interface command from the R2 configuration so that it matches the R1 configuration.

C.

Add the no auto-summary command to the R2 configuration so that it matches the R1 configuration.

D.

Add the passive-interface command to the R1 configuration so that it matches the R2 configuration.

Expert Solution
Questions # 126:

Refer to the exhibit.

Question # 126

The network administrator configured redistribution on an ASBR to reach to all WAN networks but failed Which action resolves the issue?

Options:
A.

The route map must have the keyword prefix-list to evaluate the prefix list entries

B.

The OSPF process must have a metric when redistributing prefixes from EIGRP.

C.

The route map EIGRP- > OSPF must have the 10.0.106.0/24 entry to exist in one of the three prefix lists to pass

D.

EIGRP must redistribute the 10.0.106.0/24 route instead of using the network statement

Expert Solution
Questions # 127:

Refer to Exhibit.

Question # 127

Traffic from the branch network should route through HQ R1 unless the path is unavailable. An engineer tests this functionality by shutting down interface on the BRANCH router toward HQ_R1 router but 192.168.20.0/24 is no longer reachable from the branch router. Which set of configurations resolves the issue?

Options:
A.

HQ_R1(config)# ip sla responderHQ_R1(config)# ip sla responder icmp-echo 172.16.35.2

B.

BRANCH(config)# ip sla 1BRANCH(config-ip-sla)# icmp-echo 172.16.35.1

C.

HQ_R2(config)# ip sla responderHQ_R2(config)# ip sla responder icmp-echo 172.16.35.5

D.

BRANCH(config)# ip sla 1BRANCH(config-ip-sla)# icmp-echo 172.16.35.2

Expert Solution
Questions # 128:

Refer to Exhibit.

Question # 128

A network administrator added one router in the Cisco DNA Center and checked its discovery and health from the Network Health Dashboard. The network administrator observed that the router is still showing up as unmonitored. What must be configured on the router to mount it in the Cisco DNA Center?

Options:
A.

Configure router with NetFlow data

B.

Configure router with the telemetry data

C.

Configure router with routing to reach Cisco DNA Center

D.

Configure router with SNMPv2c or SNMPv3 traps

Expert Solution
Questions # 129:

Refer to the exhibit.

Question # 129

When monitoring an IPv6 access list, an engineer notices that the ACL does not have any hits and is causing unnecessary traffic to pass through the interface Which command must be configured to resolve the issue?

Options:
A.

access-class INTERNET in

B.

ipv6 traffic-filter INTERNET in

C.

ipv6 access-class INTERNET in

D.

ip access-group INTERNET in

Expert Solution
Questions # 130:

Refer to the exhibit.

Question # 130

AS65510 iBGP is configured for directly connected neighbors. R4 cannot ping or traceroute network 192 168.100.0/24 Which action resolves this issue?

Options:
A.

Configure R4 as a route reflector server and configure R1 as a route reflector client

B.

Configure R1 as a route reflector server and configure R2 and R3 as route reflector clients

C.

Configure R4 as a route reflector server and configure R2 and R3 as route reflector clients.

D.

Configure R1 as a route reflector server and configure R4 as a route reflector client

Expert Solution
Questions # 131:

Question # 131

Refer to the exhibit. The OSPF neighbor relationship is not coming up What must be configured to restore OSPF neighbor adjacency?

Options:
A.

OSPF on the remote router

B.

matching hello timers

C.

use router ID

D.

matching MTU values

Expert Solution
Questions # 132:

Refer to the exhibits.

Question # 132

When DMVPN is configured, which configuration allows spoke-to-spoke communication using loopback as a tunnel source?

Options:
A.

Configure crypto isakmp key cisco address 0.0.0.0 on the hub.

B.

Configure crypto isakmp key Cisco address 200.1.0.0 255.255.0.0 on the hub.

C.

Configure crypto isakmp key cisco address 200.1.0.0 255.255.0.0 on the spokes.

D.

Configure crypto isakmp key cisco address 0.0.0.0 on the spokes.

Expert Solution
Questions # 133:

An engineer configured Reverse Path Forwarding on an interface and noticed that the routes are dropped when a route lookup fails on that interface for a prefix that is available in the routing table Which interface configuration resolves the issue?

Options:
A.

ip verify unicast source reachable-via rx

B.

ip verify unicast source reachable-via any

C.

ip verify unicast source reachable-via allow-default

D.

ip verify unicast source reachable-via 12-src

Expert Solution
Questions # 134:

Refer to the exhibit.

Question # 134

A user cannot SSH to the router. What action must be taken to resolve this issue?

Options:
A.

Configure transport input ssh

B.

Configure transport output ssh

C.

Configure ip ssh version 2

D.

Configure ip ssh source-interface loopback0

Expert Solution
Questions # 135:

Refer to exhibit.

Question # 135

Routing protocols are mutually redistributed on R3 and R1. Users report intermittent connectivity to services hosted on the 10.1.1.0/24 prefix. Significant routing update changes are noticed on R3 when the show ip route profile

command is run. How must the services be stabilized?

Options:
A.

The issue with using BGP must be resolved by using another protocol and redistributing it into EIGRP on R3

B.

The routing loop must be fixed by reducing the admin distance of iBGP from 200 to 100 on R3

C.

The routing loop must be fixed by reducing the admin distance of OSPF from 110 to 80 on R3

D.

The issue with using iBGP must be fixed by running eBGP between R3 and R4

Expert Solution
Viewing page 9 out of 13 pages
Viewing questions 121-135 out of questions