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Free Cisco 300-410 ENARSI Practice Questions 2026 Part1

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Question #1
Refer to the exhibit. The R1 and R2 configurations are:
A. R2 ip route 10
B. R1 ip route 10
C. R2 ip route 10
D. R2 ip route 10
View answer
Correct Answer: BC

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Question #2
Which statement about MPLS LDP router ID is true?
A. he loopback with the highest IP address is selected as the router ID
B. f MPLS LDP router ID must match the IGP router ID
C. f not configured, the operational physical interface is chosen as the router ID even if a loopbackis configured
D. he force keyword changes the router ID to the specific address causing any impact
View answer
Correct Answer: A
Question #3
Refer to the exhibit. A router is receiving BGP routing updates from multiple neighbors for routes in AS 690.What is the reason that the router still sends traffic that is destined to AS 690 to a neighbor other than 10.222.1.1?
A. The local preference value in another neighbor statement is higher than 250
B. The local preference value should be set to the same value as the weight in the route map
C. The route map is applied in the wrong direction
D. The weight value in another neighbor statement is higher than 200
View answer
Correct Answer: D
Question #4
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
View answer
Correct Answer: C
Question #5
Which command displays the IP routing table information that is associated with VRF-Lite?
A. show ipvrf
B. show ip route vrf
C. show run vrf
D. show ip protocols vrf
View answer
Correct Answer: B
Question #6
Refer to the exhibit.Which action resolves the adjacency issue?
A. Configure the same autonomous system numbers
B. Match the hello interval timers
C. Match the authentication keys
D. Configure the same EIGRP process IDs
View answer
Correct Answer: A
Question #7
An engineer configured routing between multiple OSPF domains and introduced a routing loop that caused network instability. Which action resolves the problem?
A. Set a tag using the redistribute command toward a domain and deny inbound in the other domain by a matching tag
B. Set a tag using the redistribute command toward a different domain and deny the matching tag when exiting from that domain
C. Set a tag using the network command in a domain and use the route-map command to deny the matching tag when exiting toward a different domain
D. Set a tag using the network command in a domain and use the route-map command to deny the matching tag when entering into a different domain
View answer
Correct Answer: A
Question #8
An engineer configured a company's multiple area OSPF Head Office router and Site A Cisco routers with VRF lite. Each site router is connected to a PE router of an MPLS backbone:Head Office & Site Aipcefipvrfabcrd 101:101!interface FastEthernet0/0ipvrf forwarding abcip address 172.16.16.X 255.255.255.252!routerospf 1 vrfabclog-adjacency-changesnetwork 172.16.16.0 0.0.0.255 area 1After finishing both site router configurations, none of the LSA 3, 4, 5, and 7 are installed at Site A router. Which configuration resolves this issue?
A. configure capability vrf-lite on Site A and its connected PE router under router ospf 1 vrfabc
B. configure capability vrf-lite on both PE routers connected to Head Office and Site A routers under router ospf 1 vrfabc
C. configure capability vrf-lite on Head Office and its connected PE router under router ospf 1 abc
D. configure capability vrf-lite on Head Office and Site A routers under router ospf 1 vrfabc
View answer
Correct Answer: D
Question #9
What is LDP used for in an LSR?
A. o allow for a system-wide exchange of labels across MPLS network
B. o create a label across the PE routers for end-to-end path assignment
C. o communicate the routes known for a specific interface
D. o create a database of label bindings that allow for hop-by-hop forwarding
View answer
Correct Answer: D
Question #10
Refer to the exhibit. An engineer has configured R1 as EIGRP stub router. After the configuration, router R3 failed to reach to R2 loopback address.Which action advertises R2 loopback back into the R3 routing table?
A. Add a static route for R2 loopback address in R1 and redistribute it to advertise to R3
B. Use a leak map on R1 that matches the required prefix and apply it with the distribute list command toward R3
C. Use a leak map on R3 that matches the required prefix and apply it with the EIGRP stub feature
D. Add a static null route for R2 loopback address in R1 and redistribute it to advertise to R3
View answer
Correct Answer: A
Question #11
How are MPLS Layer 3 VPN services deployed?
A. The RD and RT values must match under the VRF
B. The import and export RT values under a VRF must always be the same
C. The label switch path must be available between the local and remote PE routers
D. The RD and RT values under a VRF must match on the remote PE router
View answer
Correct Answer: C
Question #12
A DMVPN single hub topology is using IPsec + mGRE with OSPF.What should be configured on the hub to ensure it will be the designated router?
A. route map to set the metrics of learned routes to 110
B. tunnel interface of the hub with ipnhrpospfdr
C. OSPF priority to 0
D. OSPF priority greater than 1
View answer
Correct Answer: D
Question #13
How are MPLS Layer 3 VPN services deployed?
A. The RD and RT values must match under the VRF
B. The import and export RT values under a VRF must always be the same
C. The label switch path must be available between the local and remote PE routers
D. The RD and RT values under a VRF must match on the remote PE router
View answer
Correct Answer: C
Question #14
Which mechanism must be chosen to optimize the reconvergence time for OSPF at company location 408817202 that is less CPU-intensive than reducing the hello and dead timers?
A. sso
B. BFD
C. Dead Peer Detection keepalives
D. OSPF demand circuit
View answer
Correct Answer: B
Question #15
Refer to the exhibit. A network engineer is troubleshooting a failed link between R2 and R3. Notraffic loss is reported from router R5 to HQ. Which command fixes the separated backbone?
A. 3(config-router)#no area 21 stub
B. 2(config-router)#area 21 virtual-link 192
C. 3(config-router)#area 21 virtual-link 192
D. 2(config-router)#no area 21 stub
View answer
Correct Answer: B
Question #16
IPv6 is enabled in the infrastructure to support customers with an IPv6 network over WAN and to connect the head office to branch offices in the local network. One of the customers is already running IPv6 and wants to enable IPv6 over the DMVPN network infrastructure between the headend and branch sites.Which configuration command must be applied to establish an mGRE IPv6 tunnel neighborship?
A. ipv6 nhrpholdtime 30
B. tunnel mode gre multipoint ipv6
C. ipv6 unicast-routing
D. tunnel protection mode ipv6
View answer
Correct Answer: B
Question #17
What is a characteristic of Layer 3 MPLS VPNs?
A. Traffic engineering capabilities provide QoS and SLAs
B. Traffic engineering supports multiple IGP instances
C. LSP signaling requires the use of unnumbered IP links for traffic engineering
D. Authentication is performed by using digital certificates or preshared keys
View answer
Correct Answer: A
Question #18
Which method changes the forwarding decision that a router makes without first changing the routing table or influencing the IP data plane?
A. nonbroadcastmultiaccess
B. packet switching
C. policy-based routing
D. forwarding information base
View answer
Correct Answer: C
Question #19
What does the PE router convert the IPv4 prefix to within an MPLS VPN?
A. eBGP path association between the PE and CE sessions
B. prefix that combines the ASN, PE router-id, and IP prefix
C. 48-bit route combining the IP and PE router-id
D. VPN-IPv4 prefix combined with the 64-bit route distinguisher
View answer
Correct Answer: D
Question #20
An engineer configured policy-based routing for a destination IP address that does not exist in the routing table.How is the packet treated through the policy for configuring the set ip default next-hop command?
A. Packets are not forwarded to the specific next hop
B. Packets are forwarded based on the routing table
C. Packets are forwarded based on a static route
D. Packets are forwarded to the specific next hop
View answer
Correct Answer: D
Question #21
Refer to the exhibit.AS111 is receiving its own routes from AS200 causing a loop in the network.Which configuration provides loop prevention?
A. routerbgp 111neighbor 195
B. routerbgp 111no neighbor 195
C. routerbgp 111neighbor 195
D. routerbgp 111neighbor 195
View answer
Correct Answer: B
Question #22
Refer to the exhibit. R1 is configured with IP SLA to check the availability of the server behind R6but it kept failing.Which configuration resolves the issue?
A. 6(config)# ip sla responder
B. 6(config)# ip access-list extended DDOSR6(config ext-nac)# 5 permit icmp host 10
C. 6(config)# ip sla responder udp-echo ip address 10
D. 6(config)# ip access-list extended DDOSR6(confg ext-nac)# 5 permit icmp host 10
View answer
Correct Answer: D
Question #23
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 forwarded using normal route lookup
B. Packets are forwarded to the default gateway
C. Packets are dropped by the access list
D. Packets are evaluated by sequence 10
E. Packets are not evaluated by sequence 10
View answer
Correct Answer: AD
Question #24
Which configuration adds an IPv4 interface to an OSPFv3 process in OSPFv3 address family configuration?
A. router ospfv3 1address-family ipv4
B. Router(config-router)#ospfv3 1 ipv4 area 0
C. Router(config-if)#ospfv3 1 ipv4 area 0
D. router ospfv3 1address-family ipv4 unicast
View answer
Correct Answer: C
Question #25
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
View answer
Correct Answer: C
Question #26
Which method changes the forwarding decision that a router makes without first changing the routing table or influencing the IP data plane?
A. onbroadcast multiaccess
B. acket switching
C. olicy-based routing
D. orwarding information base
View answer
Correct Answer: C
Question #27
Refer to the exhibit. A network administrator redistributed the default static route into OSPF toward all internal routers to reach to Internet.Which set of commands restores reachability to the Internet by internal routers?
A. router ospf 1redistribute static subnets
B. router ospf 1network 0
C. router ospf 1redistribute connected 0
D. router ospf 1default-information originate
View answer
Correct Answer: D
Question #28
Refer to the exhibit. After a security hardening was performed on a router, the administratorcannot access the command line of any remote device. Which action resolves the issue?
A. ove Telnet and SSH commands to a nonzero privilege level
B. emove the egress ACL blocking Telnet and SSH on the router interfaces
C. emove the transport output none command from the line con 0 section
D. odify the AAA policy to allow the user to run the Telnet and SSH commands
View answer
Correct Answer: B
Question #29
Refer to the exhibit. The R1 and R2 configurations are:The neighbor relationship is not coming up.Which two sets of configurations bring the neighbors up? (Choose two.)
A.
B.
C.
D.
E.
View answer
Correct Answer: DE
Question #30
Which two statements about VRF-Lite configurations are true? (Choose two.)
A. AThey support the exchange of MPLS labels
B. BDifferent customers can have overlapping IP addresses on different VPNs
C. CThey support a maximum of 512
D. DEach customer has its own dedicated TCAM resources
E. EEach customer has its own private routing table
F. FThey support IS-IS
View answer
Correct Answer: BE
Question #31
Refer to the exhibit.BGP and EIGRP are mutually redistributed on R3, and EIGRP and OSPF are mutually redistributed on R1. Users report packet loss and interruption of service to applications hosted on the 10.1.1.0/24 prefix. An engineer tested the link from R3 to R4 with no packet loss present but has noticed frequent routing changes on R3 when running the debug ip route command.Which action stabilizes the service?
A. Reduce frequent OSPF SPF calculations on R3 that cause a high CPU and packet loss on traffic traversing R3
B. Tag the 10
C. Place an OSPF distribute-list outbound on R3 to block the 10
D. Repeat the test from R4 using ICMP ping on the local 10
View answer
Correct Answer: B
Question #32
Refer to the exhibit. The Math and Science departments connect through the corporate IT router, but users in the Math department must not be able to reach the Science department and vice versa.Which configuration accomplishes this task?
A. vrf definition Scienceaddress-family ipv4!interface E 0/2ip address 192
B. vrf definition Scienceaddress-family ipv4!interface E 0/2vrf forwarding Scienceip address 192
C. vrf definition Scienceaddress-family ipv4!interface E 0/2ip address 192
D. vrf definition Science!interface E 0/2ip address 192
View answer
Correct Answer: B
Question #33
Which method changes the forwarding decision that a router makes without first changing the routing table or influencing the IP data plane?
A. nonbroadcast multiaccess
B. packet switching
C. policy - based routing
D. forwarding information base
View answer
Correct Answer: C
Question #34
Refer to the exhibit. The network administrator configured the network to connect two disjointed networks and all the connectivity is up except the virtual link, which causes area 250 to be unreachable.Which two configurations resolve this issue? (Choose two.)
A. R2routerospf 1no area 234 virtual-link 10
B. R2routerospf 1no area 234 virtual-link 10
C. R4routerospf 1no area 234 virtual-link 10
D. R2routerospf 1router-id 10
E. R4routerospf 1no area 234 virtual-link 10
View answer
Correct Answer: AE
Question #35
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. ynamic routing protocols always have priority over static routes
B. he metric of the OSPF route is lower than the metric of the static route
C. he configured AD for the static route is higher than the AD of OSPF
D. he syntax of the static route is not valid, so the route is not considered
View answer
Correct Answer: C
Question #36
An engineer is configuring a network and needs packets to be forwarded to an interface for any destination address that is not in the routing table.What should be configured to accomplish this task?
A. set ip next-hop
B. set ip default next-hop
C. set ip next-hop recursive
D. set ip next-hop verify-availability
View answer
Correct Answer: B
Question #37
Refer to the exhibit. Which interface configuration must be configured on the HUB router to enable MVPN with mGRE mode?
A. interface Tunnel0descriptionmGRE - DMVPN Tunnelip address 10
B. interface Tunnel0descriptionmGRE - DMVPN Tunnelip address 10
C. interface Tunnel0descriptionmGRE - DMVPN Tunnelip address 10
D. interface Tunnel0descriptionmGRE - DMVPN Tunnelip address 10
View answer
Correct Answer: C
Question #38
Refer to the exhibit. The neighbor relationship is not coming up.Which two configurations bring the adjacency up? (Choose two.)
A. LAinterface E 0/0ipospf authentication-key Cisco123
B. NYinterface E 0/0noipospf message-digest-key 1 md5 Cisco123ipospf authentication-key Cisco123
C. LAinterface E 0/0ipospf message-digest-key 1 md5 Cisco123
D. LArouterospf 1area 0 authentication message-digest
E. NYrouterospf 1area 0 authentication message-digest
View answer
Correct Answer: CD
Question #39
Refer to the exhibit. When monitoring an IPv6 access list, an engineer notices that the ACL doesnot have any hits and is causing unnecessary traffic to pass through the interface. Whichcommand must be configured to resolve the issue?
A. pv6 access-class INTERNET in
B. ccess-class INTERNET in
C. pv6 traffic-filter INTERNET in
D. p access-group INTERNET in
View answer
Correct Answer: C
Question #40
Which statement about MPLS LDP router ID is true?
A. If not configured, the operational physical interface is chosen as the router ID even if a loopback is configured
B. The loopback with the highest IP address is selected as the router ID
C. The MPLS LDP router ID must match the IGP router ID
D. The force keyword changes the router ID to the specified address without causing any impact
View answer
Correct Answer: B
Question #41
Refer to the exhibit. R2 has two paths to reach 192.168.13.0/24, but traffic is sent only through R3. Which action allows traffic to use both paths?
A. Configure the variance 4 command under the EIGRP process on R2
B. Configure the bandwidth 2000 command under interface FastEthernet0/0 on R2
C. Configure the delay 1 command under interface FastEthernet0/0 on R2
D. Configure the variance 2 command under the EIGRP process on R2
View answer
Correct Answer: A
Question #42
Refer to the exhibit. Which statement about R1 is true?
A. OSPF redistributes RIP routes only if they have a tag of one
B. RIP learned routes are distributed to OSPF with a tag value of one
C. R1 adds one to the metric for RIP learned routes before redistributing to OSPF
D. RIP routes are redistributed to OSPF without any changes
View answer
Correct Answer: B
Question #43
How is VPN routing information distributed in an MPLS network?
A. The top level of the customer data packet directs it to the correct CE device
B. It is established using VPN IPsec peers
C. It is controlled through the use of RD
D. It is controlled using of VPN target communities
View answer
Correct Answer: D
Question #44
Refer to the exhibits.All the serial links between R1, R2, and R3 have the same bandwidth. Users on the 192.168.1.0/24 network report slow response times while they access resources on network 192.168.3.0/24. When a traceroute is run on the path, it shows that the packet is getting forwarded via R2 to R3 although the link between R1 and R3 is still up.What must the network administrator do to fix the slowness?
A. Add a static route on R1 using the next hop of R3
B. Remove the static route on R1
C. Change the Administrative Distance of EIGRP to 5
D. Redistribute the R1 static route to EIGRP
View answer
Correct Answer: B
Question #45
Refer to the exhibits.Which configuration allows spoke-to-spoke communication using loopback as a tunnel source?
A. Configure crypto isakmp key cisco address 0
B. Configure crypto isakmp key cisco address 200
C. Configure crypto isakmp key cisco address 200
D. Configure crypto isakmp key cisco address 0
View answer
Correct Answer: D
Question #46
Refer to the exhibit. Users in the branch network of 2001:db8:0:4::/64 report that they cannot access the Internet.Which command is issued in IPv6 router EIGRP 100 configuration mode to solve this issue?
A. ssue the eigrp stub command on R1
B. ssue the no eigrp stub command on R1
C. ssue the eigrp stub command on R2
D. ssue the no eigrp stub command on R2
View answer
Correct Answer: B
Question #47
What is a characteristic of Layer 3 MPLS VPNs?
A. Traffic engineering capabilities provide QoS and SLAs
B. Traffic engineering supports multiple IGP instances
C. LSP signaling requires the use of unnumbered IP links for traffic engineering
D. Authentication is performed by using digital certificates or preshared keys
View answer
Correct Answer: A
Question #48
Refer to the exhibit. What is the result of applying this configuration?
A. The router can form BGP neighborships with any other device
B. The router cannot form BGP neighborships with any other device
C. The router cannot form BGP neighborships with any device that is matched by the access list named “BGP”
D. The router can form BGP neighborships with any device that is matched by the access list named “BGP”
View answer
Correct Answer: C
Question #49
The network administrator configured R1 for Control Plane Policing so that the inbound Telnet traffic is policed to 100 kbps. This policy must not apply to traffic coming in from 10.1.1.1/32 and 172.16.1.1/32. The administrator has configured this:
A. no access-list 101 access-list 101 deny tcp host 10
B. control-plane no service-policy input PM-CoPP ! interface Ethernet 0/0 service-policy input PM-CoPP
C. no access-list 101 access-list 101 deny tcp host 10
D. control-plane no service-policy input PM-CoPP service-policy input PM-CoPP
View answer
Correct Answer: A

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