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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

A network engineer needs to verify IP SLA operations on an interface that shows on indication of

excessive traffic.

Which command should the engineer use to complete this action?

A.

show frequency

B.

show track

C.

show reachability

D.

show threshold

Drag and Drop the IPv6 First-Hop Security features from the left onto the definitions on the right.

Refer to the exhibit.

An engineer is monitoring reachability of the configured default routes to ISP1 and ISP2. The default route from ISP1 is preferred if available. How is this issue resolved?

A.

Use the icmp-echo command to track both default routes

B.

Use the same AD for both default routes

C.

Start IP SLA by matching numbers for track and ip sla commands

D.

Start IP SLA by defining frequency and scheduling it

What is a role of route distinguishers in an MPLS network?

A.

Route distinguishers define which prefixes are imported and exported on the edge router

B.

Route distinguishers allow multiple instances of a routing table to coexist within the edge router.

C.

Route distinguishers are used for label bindings.

D.

Route distinguishers make a unique VPNv4 address across the MPLS network

Which option is the best for protecting CPU utilization on a device?

A.

fragmentation

B.

COPP

C.

ICMP redirects

D.

ICMP unreachable messages

Which protocol does MPLS use to support traffic engineering?

A.

Tag Distribution Protocol (TDP)

B.

Resource Reservation Protocol (RSVP)

C.

Border Gateway Protocol (BGP)

D.

Label Distribution Protocol (LDP)

Users were moved from the local DHCP server to the remote corporate DHCP server. After the move,

none of the users were able to use the network.

Which two issues will prevent this setup from working properly? (Choose two)

A.

Auto-QoS is blocking DHCP traffic.

B.

The DHCP server IP address configuration is missing locally

C.

802.1X is blocking DHCP traffic

D.

The broadcast domain is too large for proper DHCP propagation

E.

The route to the new DHCP server is missing

Exhibit:

BGP is flapping after the Copp policy is applied. What are the two solutions to fix the issue?

(Choose two)

A.

Configure BGP in the COPP-CRITICAL-7600 ACL

B.

Configure a higher value for CIR under the default class to allow more packets during peak traffic

C.

Configure a higher value for CIR under the class COPP-CRITICAL-7600

D.

Configure a three-color policer instead of two-color policer under class COPP-CRITICAL-7600

E.

Configure IP CEF to CoPP policy and BGP to work

What is a prerequisite for configuring BFD?

A.

Jumbo frame support must be configured on the router that is using BFD.

B.

All routers in the path between two BFD endpoints must have BFD enabled.

C.

Cisco Express Forwarding must be enabled on all participating BFD endpoints.

D.

To use BFD with BGP, the timers 3 9 command must first be configured in the BGP routing process.

Which command is used to check IP SLA when an interface is suspected to receive lots of traffic with options?

A.

show track

B.

show threshold

C.

show timer

D.

show delay

Refer to the exhibit.

An engineer is trying to redistribute OSPF to BGP, but not all of the routes are

redistributed. What is the reason for this issue?

A.

By default, only internal routes and external type 1 routes are redistributed into BGP

B.

Only classful networks are redistributed from OSPF to BGP

C.

BGP convergence is slow, so the route will eventually be present in the BGP table

D.

By default, only internal OSPF routes are redistributed into BGP

Refer to the exhibit.

In which circumstance does the BGP neighbor remain in the idle condition?

A.

if prefixes are not received from the BGP peer

B.

if prefixes reach the maximum limit

C.

if a prefix list is applied on the inbound direction

D.

if prefixes exceed the maximum limit

Refer to the exhibit.

An engineer is trying to configure local authentication on the console line, but the device is trying to authenticate using TACACS+. Which action produces the desired configuration?

A.

Add the aaa authentication login default none command to the global configuration.

B.

Replace the capital “C” with a lowercase “c” in the aaa authentication login Console local command.

C.

Add the aaa authentication login default group tacacs+ local-case command to the globalconfiguration.

D.

Add the login authentication Console command to the line configuration

Refer to the exhibit.

An IP SLA was configured on router R1 that allows the default route to be modified in the event that Fa0/0 loses reachability with the router R3 Fa0/0 interface. The route has changed to flow through

router R2. Which debug command is used to troubleshoot this issue?

A.

debug ip flow

B.

debug ip sla error

C.

debug ip routing

D.

debug ip packet

Refer to the exhibit.

An engineer configures a static route on a router, but when the engineer checks the route

to the destination, a different next hop is chosen. What is the reason for this?

A.

Dynamic routing protocols always have priority over static routes.

B.

The metric of the OSPF route is lower than the metric of the static route.

C.

The configured AD for the static route is higher than the AD of OSPF.

D.

The syntax of the static route is not valid, so the route is not considered.

Refer the exhibit.

Which action resolves intermittent connectivity observed with the SNMP trap

packets?

A.

Decrease the committed burst Size of the mgmt class map

B.

Increase the CIR of the mgmt class map

C.

Add a new class map to match TCP traffic

D.

Add one new entry in the ACL 120 to permit the UDP port 161

Which two protocols can cause TCP starvation? (Choose two)

A.

TFTP

B.

SNMP

C.

SMTP

D.

HTTPS

E.

FTP

Which statement about IPv6 ND inspection is true?

A.

It learns and secures bindings for stateless autoconfiguration addresses in Layer 3 neighbor tables.

B.

It learns and secures bindings for stateless autoconfiguration addresses in Layer 2 neighbor tables.

C.

It learns and secures bindings for stateful autoconfiguration addresses in Layer 3 neighbor tables.

D.

It learns and secures bindings for stateful autoconfiguration addresses in Layer 2 neighbor tables.

Which label operations are performed by a label edge router?

A.

SWAP and POP

B.

SWAP and PUSH

C.

PUSH and PHP

D.

PUSH and POP

Which command displays the IP routing table information that is associated with VRF-Lite?

A.

show ip vrf

B.

show ip route vrf

C.

show run vrf

D.

show ip protocols vrf

Which command allows traffic to load-balance in an MPLS Layer 3 VPN configuration?

A.

multi-paths eibgp 2

B.

maximum-paths 2

C.

Maximum-paths ibgp 2

D.

multi-paths 2

When provisioning a device in Cisco DNA Center, the engineer sees the error message “Cannot select the device. Not compatible with template”.

What is the reason for the error?

A.

The template has an incorrect configuration.

B.

The software version of the template is different from the software version of the device.

C.

The changes to the template were not committed.

D.

The tag that was used to filter the templates does not match the device tag.

Refer to the exhibit.

An administrator noticed that after a change was made on R1, the timestamps on the system logs did not match the clock. What is the reason for this error?

A.

An authentication error with the NTP server results in an incorrect timestamp.

B.

The keyword localtime is not defined on the timestamp service command.

C.

The NTP server is in a different time zone.

D.

The system clock is set incorrectly to summer-time hours.

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

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

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.

Drag and drop the MPLS VPN device types from the left onto the definitions on the right.

Refer to the exhibit.

To provide reachability to network 10.1.1.0 /24 from R5, the network administrator redistributes EIGRP into OSPF on R3 but notices that R4 is now taking a ........... path through R5 to reach 10.1.1.0/24 network. Which action fixes the issue while keeping the reachability from R5 to 10.1.1.0/24 network?

A.

Change the administrative distance of the external EIGRP to 90.

B.

Apply the outbound distribution list on R5 toward R4 in OSPF.

C.

Change the administrative distance of OSPF to 200 on R5.

D.

Redistribute OSPF into EIGRP on R4

Refer to the exhibit.

Which action resolves the failed authentication attempt to the router?

A.

Configure aaa authorization login command on line vty 0 4

B.

Configure aaa authorization login command on line console 0

C.

Configure aaa authorization console global command

D.

Configure aaa authorization console command on line vty 0 4

Refer to the exhibit. The administrator configured route advertisement to a remote low resources router to use only the default route to reach any network but failed. Which action resolves this issue?

A.

Change the direction of the distribute-list command from out to in.

B.

Remove the line with the sequence number 5 from the prefix list.

C.

Remove the prefix keyword from the distribute-list command.

D.

Remove the line with the sequence number 10 from the prefix list.

Exhibit:

Which action resolves the authentication problem?

A.

Configure the user name on the TACACS+ server

B.

Configure the UDP port 1812 to be allowed on the TACACS+ server

C.

Configure the TCP port 49 to be reachable by the router

D.

Configure the same password between the TACACS+ server and router.

Refer to the exhibit.

The network administrator must mutually redistribute routes at the Chicago router to the LA and NewYork routers. The configuration of the Chicago router is this:

After the configuration, the LA router receives all the NewYork routes, but NewYork router does not receive any LA routes. Which set of configurations fixes the problem on the Chicago router?

A)

B)

C)

D)

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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