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300-410 Cisco Implementing Cisco Enterprise Advanced Routing and Services (300-410 ENARSI) Free Practice Exam Questions (2026 Updated)

Prepare effectively for your Cisco 300-410 Implementing Cisco Enterprise Advanced Routing and Services (300-410 ENARSI) certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2026, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 642 questions

Which 0S1 model is used to insert an MPLS label?

A.

between Layer 5 and Layer 6

B.

between Layer 1 and Layer 2

C.

between Layer 3 and Layer 4

D.

between Layer 2 and Layer 3

What is a MPLS PHP label operation?

A.

Downstream node signals to remove the label.

B.

It improves P router performance by not performing multiple label lookup.

C.

It uses implicit-NULL for traffic congestion from source to destination forwarding

D.

PE removes the outer label before sending to the P router.

An engineer received a ticket about a router that has reloaded. The monitoring system graphs show different traffic patterns between logical and physical interfaces when the router is rebooted. Which action resolves the issue?

A.

Configure the snmp ifindex persist command globally.

B.

Clear the logical interfaces with snmp ifindex clear command

C.

Configure the snmp ifindex persist command on the physical interfaces.

D.

Trigger a new snmpwalk from the monitoring system to synchronize interface OlDs

Refer to the exhibit.

R1 is configured with IP SLA to check the availability of the server behind R6 but it kept failing. Which configuration resolves the issue?

A.

R6(config)# ip sla responder

B.

R6(config)# ip sla responder udp-echo ip address 10.10.10.1 port 5000

C.

R6(config)# ip access-list extended DDOSR6(config ext-nac)# 5 permit icmp host 10.66 66.66 host 10.10.10.1

D.

R6(config)# ip access-list extended DDOSR6(confg ext-nac)# 5 permit icmp host 10.10.10.1 host 10.66.66.66

Refer to the exhibit.

TCP traffic should be reaching host 10.10.10.10/24 via R2. Which action resolves the issue?

A.

TCP traffic will reach the destination via R2 without any changes

B.

Add a permit 20 statement in the route map to allow TCP traffic

C.

Allow TCP in the access list with no changes to the route map

D.

Set IP next-hop to 10.10.12.2 under the route-map permit 10 to allow TCP traffic.

Which IPv6 first hop security feature controls the traffic necessary for proper discovery of neighbor device operation and performance?

A.

RA Throttling

B.

Source or Destination Guard

C.

ND Multicast Suppression

D.

IPv6 Snooping

An engineer must establish a connection between two CE routers for two customers with overlapping IP addresses Customer_a is connected to interfaces Gig0/0, and Customer_b is connected to interfaces Gig0/1. Routers CE1 and CE2 are configured as follows:

Drag and drop the code snippets from the right onto the boxes in the configuration to establish the needed connection. Snippets may be used more than once.

Refer to the exhibit R1 cannot establish a neighbor relationship with R2 Which action resolves the issue " ?

A.

Configure the mtu Ignore command on the Interfaces of R1 and R2

B.

Configure the ip ospf network point-to-point command on the interfaces of R1 and R2

C.

Configure the ip ospf network broadcast command on the interfaces of R1 and R2

D.

Configure the neighbor 2.2.2.2 command on R1 under the OSPF process

The network administrator is tasked to configure R1 to authenticate telnet connections based on Cisco ISE using RADIUS. ISE has been configured with an IP address of 192.168.1.5 and with a network device pointing towards R1 (192.168.1.1) with a shared secret password of Cisco123. If ISE is down, the administrator should be able to connect using the local database with a username and password combination of admin/cisco123.

The administrator has configured the following on R1:

ISE has gone down. The Network Administrator is not able to Telnet to R1 when ISE went down. Which two configuration changes will fix the issue? (Choose two.)

A.

Option A

B.

Option B

C.

Option C

D.

Option D

E.

Option E

Refer to the exhibit.

An engineer configures two ASBRs 10 4 17.6 and 10 4 15 5 in an OSPF network to redistribute routes from EIGRP However, both ASBRs show the EIGRP routes as equal costs even though the next-hop router 10 4 17 6 is closer to R1 How should the network traffic to the EIGRP prefixes be sent via 10 4.17.6?

A.

The administrative distance should be raised to 120 from the ASBR 10.4.15 5.

B.

The redistributed prefixes should be advertised as Type 1

C.

The ASBR 10 4 17 6 should assign a tag to match and assign a lower metnc on R1

D.

The administrative distance should be raised to 120 from the ASBR 104.17.6

E.

The admitstrative distance should be raised to 120 from the ASBR 104 15.5.

F.

The redistributed prefixes should be advertised as Type 1.

G.

The ASBR 10 4 17 6 should assign a tag to match and assign a tower metnc on R1

Refer to the exhibit. The services at branch B are down. An engineer notices mal rouler A and router B are not exchanging any routes Which configuration resolves the issue on router B?

A)

B)

C)

D)

A.

Option A

B.

Option B

C.

Option C

D.

Option D

:588

Refer to the exhibit. An engineer must filter prefixes that originate from AS65412. but it is not working correctty. Which configuration must the engineer apply to R1 to resolve the issue?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

:581

The network administrator deployed the Binding Table Recovery feature. Which two devices recover the missing binding table entries? (Choose two.)

A.

DHCP client

B.

DHCP server

C.

destination host

D.

source host

E.

DHCP relay agent

What must be configured by the network engineer to circumvent AS_PATH prevention mechanism in IP/VPN Hub and Spoke deployment scenarios?

A.

Use allows in and as-override at all Pes.

B.

Use allowas in and as-override at the PE-Hub.

C.

Use Allowas-in the PE_Hub

D.

Use as-override at the PE_Hub

Which IPv6 feature enables a device to reject traffic when it is originated from an address that is not stored in the device binding table?

A.

IPv6 Snooping

B.

IPv6 Source Guard

C.

IPv6 DAD Proxy

D.

IPv6 RA Guard

Refer to the exhibit.

A network engineer receives a fault ticket about traffic drops from BANK SITE to BANK

Users can reach BANK SITE Y from router RA as a source.

Routers RB and RD are acting as route reflectors.

Which configuration resolves the issue?

A.

RC(config)#router bgp 65201RC(config-router)#neighbor 10.10.10.4 route-reflector-client

B.

RF(config)#router bgp 65201RF(config-router)#neighbor 10.10.10.6 route-reflector-client

C.

RC(config)#router bgp 65201RC(config-router)#neighbor 10.10.10.2 route-reflector-client

D.

RB(config)router bgp 65201RB(config-router)#neighbor 10.10.10.3 route-reflector-client

Drag and drop the ICMPv6 neighbor discovery messages from the left onto the correct packet types on the right.

Refer to the exhibit. ISP 1 and ISP 2 directly connect to the internet. A customer is tracking both ISP links to achieve redundancy but cannot see the Cisco IOS IP SLA tracking output on the router console. Which command is missing from the IP SLA configuration?

A.

start-time 00:00

B.

start-time now

C.

start-time 0

D.

start-time immediately

A network administrator is trying to access a branch router using TACACS+ username and password credentials, but the administrator cannot log in to the router because the WAN connectivity is down. The branch router has following AAA configuration:

Which command will resolve this problem when WAN connectivity is down?

A.

aaa authentication login default group tacacs+ local

B.

aaa authentication login default group tacacs+ enable

C.

aaa authentication login default group tacacs+ console

D.

aaa authentication login console group tacacs+ enable

Which mechanism provides traffic segmentation within a DMVPN network?

A.

RSVP

B.

BGP

C.

MPLS

D.

iPsec

Refer to the exhibit.

A NOC team receives a ticket that data traffic from RA to RF is not forwarded when the link between the RC-RE path goes down. All routers learn loopback IP through the IGP protocol. Which configuration resolves?

A.

RD(config)#router bgp B5201RD(config-router)# neighbor 10.10.10.2 update-source loopback 0

B.

RD(config-router)# neighbor bgp 65101RB(config-router)# neighbor 10.10.10.3 ebgp-multihop 3

C.

RB(config)# router bgp 65101RB(config)#neighbor 10.10.10.3 update-source loopback 0

D.

RD(config)# router bgp 65201RDI(config-router)# neighbor 10.10.10.2 ebgp-multihop 3

Refer to the exhibit.

R1 is configured with uRPF, and ping to R1 is failing from a source present in the R1 routing table via the GigatxtEthernet 0/0 interface. Which action resolves the issue?

A.

Remove the access list from the interface GigabrtEthernet 0/0

B.

Modify the uRPF mode from strict to loose

C.

Enable Cisco Express Forwarding to ensure that uRPF is functioning correctly

D.

Add a floating static route to the source on R1 to the GigabitEthernet 0/1 interface

Refer to the exhibit.

A network engineer applied a filter for LSA traffic on OSPFv3 interarea routes on the area 5 ABR to protect advertising the internal routes of area 5 to the business partner network. All other areas should receive the area 5 internal routes. After the respective route filtering configuration is applied on the ABR, area 5 routes are not visible on any of the areas. How must the filter list be applied on the ABR to resolve this issue?

A.

in the “in” direction for area 5 on router R1

B.

in the “out” direction for area 5 on router R1

C.

in the “in” direction for area 20 on router R2

D.

in the “out” direction for area 20 on router R2

Refer to the exhibit. An administrator must upload the packages conf Me to an FTP server. However, the FTP server rejected anonymous service and required users to authenticate What are the two ways to resolve the issue? (Choose two.)

A.

Use is ftp username and ip ftp password configuration commands to specify valid FTP server credentials.

B.

Use the copy flash:packages.conf scp: command instead and enter the FTP server credentials when prompted.

C.

Enter the FTP server credentials directly In the FTP URL using the ftp://username:passwordQ192.0.2.40/ syntax .

D.

Create a user on the rooter matching the username and password on the FTP server and log in before attempting the copy

E.

Use the copy flash-packages conf ftp: command instead and enter the FTP server credent-ais when prompted.

An engineer creates a Cisco DNA Center cluster with three nodes, but all the services are running on one host node. Which action resolves this issue?

A.

Restore the link on the switch interface that is connected to a cluster link on the Cisco DNA Center

B.

Click the master host node with all the services and select services to be moved to other hosts

C.

Enable service distribution from the Systems 360 page.

D.

Click system updates, and upgrade to the latest version of Cisco DNA Center.

Which two components are required for MPLS Layer 3 VPN configuration? (Choose two)

A.

Use pseudowire for Layer 2 routes

B.

Use MP-BGP for customer routes

C.

Use OSPF between PE and CE

D.

Use a unique RD per customer VRF

E.

Use LDP for customer routes

Refer to the exhibit. A network engineer receives a report that Spoke 1 users can perform bank transactions with the server located at the Center site, but Spoke 2 users cannot. Which action resolves the issue?

A.

Configure the Spoke 2 users IP on the router B OSPF domain

B.

Configure encapsulation dot1q 78 on the router C interface.

C.

Configure IPv6 on the routers B and C interfaces

D.

Configure OSPFv2 on the routers B and C interfaces

Refer to the exhibit.

An engineer is trying to connect to a device with SSH but cannot connect. The engineer connects by using the console and finds the displayed output when troubleshooting. Which command must be used in configuration mode to enable SSH on the device?

A.

no ip ssh disable

B.

ip ssh enable

C.

ip ssh version 2

D.

crypto key generate rsa

Which protocol is used in a DMVPN network to map physical IP addresses to logical IP addresses?

A.

BGP

B.

LLDP

C.

EIGRP

D.

NHRP

Refer to the exhibit.

Which interface configuration must be configured on the spoke A router to enable a dynamic DMVPN tunnel with the spoke B router?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Total 642 questions
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