Free Cisco 300-410 ENARSI Practice Questions 2026 Part2

Question #1

What is LDP used for in an LSR?

A. to allow for a system-wide exchange of labels across MPLS network

B. to create a label across the PE routers for end-to-end path assignment

C. to communicate the routes known for a specific interface

D. to create a database of label bindings that allow for hop-by-hop forwarding

View answer

Correct Answer: D

Question #2

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 #3

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 #4

Refer to the exhibit. An engineer is trying to block the route to 192.168.2.2 from the routing table by using the configuration that is shown. The route is still presentin the routing table as an OSPF route.Which action blocks the route?

A. Use an extended access list instead of a standard access list

B. Change sequence 10 in the route-map command from permit to deny

C. Use a prefix list instead of an access list in the route map

D. Add this statement to the route map: route-map RM-OSPF-DL deny 20

View answer

Correct Answer: B

Question #5

Refer to the exhibit. An engineer has configured policy-based routing and applied the configuration to the correct interface. How is the configuration applied to the traffic that matches the access list?

A. It is forwarded using the routing table lookup

B. It is sent to 209

C. It is dropped

D. It is sent to 209

View answer

Correct Answer: D

Question #6

Refer to the exhibit.When the FastEthernet0/1 goes down, the route to 172.29.0.0/16 via 192.168.253.2 is not installed in the RIB. Which action resolves the issue?

A. Configure feasible distance greater than the reported distance

B. Configure feasible distance greater than the successor's feasible distance

C. Configure reported distance greater than the successor's feasible distance

D. Configure reported distance greater than the feasible distance

View answer

Correct Answer: A

Question #7

Refer to the exhibits. Phase-3 tunnels cannot be established between spoke-to-spoke in DMVPN. Which two commands are missing? (Choose two.)

A. The ipnhrp redirect command is missing on the spoke routers

B. The ipnhrp shortcut command is missing on the spoke routers

C. The ipnhrp redirect command is missing on the hub router

D. The ipnhrp shortcut command is missing on the hub router

E. The ipnhrp map command is missing on the hub router

View answer

Correct Answer: BC

Question #8

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

View answer

Correct Answer: D

Question #9

Refer to the exhibit.Refer to the exhibit. An enterprise user reports an access issue with IPv6 content on the Internet. The user can access IPv4 content that is at the data center. Which action resolves the issue with IPv6 content?

A. Change Area 11 to Area 0 between routers B and C

B. Add a static route for 2001: db8:0:6::1/64 on router B RIB

C. Advertise the 2001:db8: e::e/64 route on the router D OSPF process

D. Enable default information to originate in IPv6 AF on router B

View answer

Correct Answer: D

Question #10

The following access lists are applied to an interface connecting two OSPF routers:

A. the DR on the link will begin updating

B. the OSPF adjacency will go down

C. the last deny statement will fail to log traffic

D. the list will only permit IPv6 neighbor advertisements

View answer

Correct Answer: B

Question #11

An engineer needs dynamic routing between two routers and is unable to establish OSPF adjacency. The output of the show ipospf neighbor command shows that the neighbor state is EXSTART/EXCHANGE.Which action should be taken to resolve this issue?

A. match the passwords

B. match the hello timers

C. match the MTUs

D. match the network types

View answer

Correct Answer: C

Question #12

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 #13

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

A. fragmentation

B. COPP

C. ICMP redirects

D. ICMP unreachable messages

View answer

Correct Answer: B

Question #14

Refer to the exhibit. The Los Angeles and New York routers are receiving routers from Chicago but not from each other.Which configuration fixes the issue?

A. interface Tunnel1noip split-horizon eigrp 111

B. interface Tunnel1ip next-hop-self eigrp 111

C. interface Tunnel1tunnel mode ipsec ipv4

D. interface Tunnel1tunnel protection ipsec profile IPSec-PROFILE

View answer

Correct Answer: A

Question #15

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

View answer

Correct Answer: D

Question #16

Refer to the exhibit. An engineer is trying to generate a summary route in OSPF for network 10.0.0.0/8, but the summary route does not show up in the routingtable.Why is the summary route missing?

A. The summary-address command is used only for summarizing prefixes between areas

B. The summary route is visible only in the OSPF database, not in the routing table

C. There is no route for a subnet inside 10

D. The summary route is not visible on this router, but it is visible on other OSPF routers in the same area

View answer

Correct Answer: C

Question #17

How does an MPLS Layer 3 VPN differentiate the IP address space used between each VPN?

A. by RD

B. by address family

C. by MP-BGP

D. byRT

View answer

Correct Answer: A

Question #18

R1 and R2 are configured as eBGP neighbors. R1 is in AS100 and R2 is in AS200. R2 is advertising these networks to R1:172.16.16.0/20172.16.3.0/24172.16.4.0/24192.168.1.0/24192.168.2.0/24172.16.0.0/16The network administrator on R1 must improve convergence by blocking all subnets of 172.16.0.0/16 major network with a mask lower than 23 from coming in.Which set of configurations accomplishes the task on R1?

A. ip prefix-list PL-1 deny 172

B. ip prefix-list PL-1 deny 172

C. ip prefix-list PL-1 deny 172

D. access-list 1 deny 172

View answer

Correct Answer: A

Question #19

Refer to the exhibit.AS65510 iBGP is configured for directly connected neighbors. R4 cannot ping or traceroute network 192.168.100.0/24.Which action resolves this issue?

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

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

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

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

View answer

Correct Answer: D

Question #20

Refer to the exhibit.Users in the branch network of 2001db804/64 report that they cannot access the Internet. Which command is issued in IPv6 router EIGRP 100 configuration mode to solve this issue?

A. Issue the eigrp stub command on R1

B. Issue the no neighbor stub command on R2

C. Issue the eigrp command on R2

D. Issue the no eigrp stub command on R1

View answer

Correct Answer: D

Question #21

Refer to the exhibit.Which set of commands restore reachability to loopback0?

A. interface loopback0ip address 4

B. interface loopback0ip address 4

C. interface loopback0ip address 4

D. interface loopback0ip address 4

View answer

Correct Answer: A

Question #22

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

A. The route map EIGRP->OSPF must have the 10

B. EIGRP must redistribute the 10

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

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

View answer

Correct Answer: D

Question #23

Refer to the exhibit. An engineer configured SNMP Communities on UserSW2 switch, but the SNMP server cannot upload modified configurations to the switch. Which configuration resolves this issue?

A. nmp-server community CiscoUs3r RW 11

B. nmp-server community Ciscowruser RW 11

C. nmp-server group NETADMIN v3 priv read NETVIEW write NETADMIN access 22

D. nmp-server group NETVIEW v2c priv read NETVIEW access 11

View answer

Correct Answer: B

Question #24

What is an advantage of using BFD?

A. It detects local link failure at layer 1 and updates the routing table

B. It detects local link failure at layer 3 and updates the routing protocols

C. It has sub-second failure detection for layer 1 and layer 3 problems

D. It has sub-second failure detection for layer 1 and layer 2 problems

View answer

Correct Answer: D

Question #25

Which feature is used by LDP in the forwarding path within the MPLS cloud?

A. AIP forwarding

B. BTTL

C. CTDP

D. DLSP

View answer

Correct Answer: D

Question #26

R2 has a locally originated prefix 192.168.130.0/24 and has these configurationsWhat is the result when the route - map OUT command is applied toward an eBGP neighbor R1 (1.1.1.1) by using the neighbor 1.1.1.1 route - map OUT out command?

A. R1 sees 192

B. R1 does not accept any routes other than 192

C. R1 does not forward traffic that is destined for 192

D. Network 192

View answer

Correct Answer: A

Question #27

Refer to the exhibit. An administrator configured a Cisco router for TACACS authentication, but the router is using the local enable password instead. Which action resolves the issue?

A. onfigure the aaa authentication login default group admin local if-authenticated command instead

B. onfigure the aaa authentication login admin group tacacs+ local enable none command instead

C. onfigure the aaa authentication login admin group tacacs+ local if-authenticated command instead

D. onfigure the aaa authentication login admin group admin local enable command instead

View answer

Correct Answer: D

Question #28

Which of the following is true regarding IPsec Pre-fragmentation (Look-Ahead Fragmentation)? (Choose two.)

A. perates in tunnel mode only

B. perates in transport mode only

C. s used to help in the overall IPsec throughput since the end host is able to avoid packet reassembly after packet decryption

D. s not dependent on the MTU of the physical interface used for IPsec

E. oes not support Path MTU Discovery

View answer

Correct Answer: AC

Question #29

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

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

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

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

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

E. LDP and BGP can be used for Pseudowire signaling

View answer

Correct Answer: CD

Question #30

Refer to the exhibit. The network administrator configured the branch router for IPv6 on the E 0/0 interface. The neighboring router is fully configured to meet requirements, but the neighbor relationship is not coming up.Which action fixes the problem on the branch router to bring the IPv6 neighbors up?

A. Disable OSPF for IPv4 using the no ospfv3 4 area 0 ipv4 command under the E 0/0 interface

B. Enable the IPv4 address family under the router ospfv3 4 process by using the address-family ipv4 unicast command

C. Disable IPv6 on the E 0/0 interface using the no ipv6 enable command

D. Enable the IPv4 address family under the E 0/0 interface by using the address-family ipv4 unicast command

View answer

Correct Answer: B

Question #31

Refer to the exhibit.A network engineer must establish communication between three different customer sites with these requirements:Site-A: must be restricted to access to any users at Site-B or Site-C.Site-B and Site-C must be able to communicate between sites and share routes using OSPF.Which configuration meets the requirements?

A. Option A

B. Option B

C. Option C

D. Option D

View answer

Correct Answer: C

Question #32

Which statement about route distinguishers in an MPLS network is true?

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

B. Route distinguishers are used for label bindings

C. Route distinguishers make a unique VPNv4 address across the MPLS network

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

View answer

Correct Answer: C

Question #33

Consider the partial output of the show ip route eigrp command:

A. 172

B. 172

C. 15

D. 15

E. 0

View answer

Correct Answer: BCE

Question #34

R2 has a locally originated prefix 192.168.130.0/24 and has these configurations:What is the result when the route-map OUT command is applied toward an eBGP neighbor R1 (1.1.1.1) by using the neighbor 1.1.1.1 route-map OUT outcommand?

A. R1 sees 192

B. R1 does not accept any routes other than 192

C. R1 does not forward traffic that is destined for 192

D. Network 192

View answer

Correct Answer: A

Question #35

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 #36

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 #37

Which IGPs are supported by the MPLS LDP autoconfiguration feature?

A. ISIS and RIPv2

B. RIPv2 and OSPF

C. OSPF and EIGRP

D. OSPF and ISIS

View answer

Correct Answer: D

Question #38

What are two functions of LDP? (Choose two.)

A. It advertises labels per Forwarding Equivalence Class

B. It uses Forwarding Equivalence Class

C. It is defined in RFC 3038 and 3039

D. It requires MPLS Traffic Engineering

E. It must use Resource Reservation Protocol

View answer

Correct Answer: AB

Question #39

Which configuration enabled the VRF that is labeled “Inet” on FastEthernet0/0?

A. R1(config)# ipvrfInetR1(config-vrf)#ipvrf FastEthernet0/0

B. R1(config)#ipvrfInet FastEthernet0/0

C. R1(config)# ipvrfInetR1(config-vrf)#interface FastEthernet0/0R1(config-if)#ipvrf forwarding Inet

D. R1(config)#router ospf 1 vrfInetR1(config-router)#ipvrf forwarding FastEthernet0/0

View answer

Correct Answer: C

Question #40

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 #41

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. Issue the eigrp stub command on R1

B. Issue the no eigrp stub command on R1

C. Issue the eigrp stub command on R2

D. Issue the no eigrp stub command on R2

View answer

Correct Answer: B

Question #42

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 #43

What is a prerequisite for configuring BFD?

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

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

C. isco Express Forwarding must be enabled on all participating BFD endpoints

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

View answer

Correct Answer: C

Question #44

R2 has a locally originated prefix 192.168.130.0/24 and has these configurations:What is the result when the route-map OUT command is applied toward an eBGP neighbor R1 (1.1.1.1) by using the neighbor 1.1.1.1 route-map OUT out command?

A. R1 sees 192

B. R1 does not accept any routes other than 192

C. R1 does not forward traffic that is destined for 192

D. Network 192

View answer

Correct Answer: A

Question #45

Refer to the exhibit.Which configuration configures a policy on R1 to forward any traffic that is sourced from the 192.168.130.0/24 network to R2?

A. Option A

B. Option B

C. Option C

D. Option D

View answer

Correct Answer: D

Question #46

How does an MPLS Layer 3 VPN differentiate the IP address space used between each VPN?

A. by RT

B. by address family

C. by RD

D. by MP-BGP

View answer

Correct Answer: C

Question #47

Refer to the exhibit.A network administrator configured mutual redistribution on R1 and R2 routers, which caused instability in the network.Which action resolves the issue?

A. Set a tag in the route map when redistributing EIGRP into OSPF on R1, and match the same tag on R2 to deny when redistributing OSPF into EIGRP

B. Set a tag in the route map when redistributing EIGRP into OSPF on R1, and match the same tag on R2 to allow when redistributing OSPF into EIGRP

C. Apply a prefix list of EIGRP network routes in OSPF domain on R1 to propagate back into the EIGRP routing domain

D. Advertise summary routes of EIGRP to OSPF and deny specific EIGRP routes when redistributing into OSPF

View answer

Correct Answer: A

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