Cisco 300-410 Online Practice Questions and Exam Preparation

Cisco 300-410 Online Questions & Answers

• Question 191:

  Refer to the exhibit.

  

  R1 lost its directly connected EIGRP peer 172.16.33.2 (SW1). Which configuration resolves the issue?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  A. Option A

  ---

  https://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routing-protocol-eigrp/82110-eigrp-authentication.html

• Question 192:

  Refer to the exhibit.

  

  R1 is not forming adjacency on a point-to-point interface. Which action resolves the issue?

  A. The area numbers must be configured the same on each router.
  B. The area types must be configured the same on each router.
  C. The no-summary command must be included in the area configuration on R2.
  D. The no-summary command must be included in the area configuration on R1.
  B. The area types must be configured the same on each router.

• Question 193:

  Refer to the exhibit.

  

  A network engineer is troubleshooting a failed link between R2 and R3. No traffic loss is reported from router R5 to HQ. Which command fixes the separated backbone?

  A. R3(config-router)#area 21 virtual-link 192.168.125.5
  B. R2(config-router)#area 21 virtual-link 192.168.125.5
  C. R3(config-router)#no area 21 stub
  D. R2(config-router)#no area 21 stub
  C. R3(config-router)#no area 21 stub

  ---

  The error log is printed prior configuring the virtual link and the stub area. The log actually confirms the fact that r2 tried to establish a virtual link with r3. The 192.168.125.5 is the source IP of the packet that triggered the error and belongs to R2. it is not necessarily the same as the Router ID. Anyway, if the virtual link endpoints are in the stub area, then connectivity between the two routers could be lost. To allow a virtual link to exist through a stub area you should use "virtual-link stub".

• Question 194:

  Refer to the exhibit.

  

  AS 111 mut not be used as a transit AS, but ISP-1 is getting ISP-2 routes from AS 111. Which configuration stops Customer AS from being used as a transit path on ISP-1?

  A. ip as-path access-list 1 permit ^$
  B. ip as-path access-list 1 permit_111_
  C. ip as-path access-list 1 permit."
  D. ip as-path access-list 1 permit ^111$
  D. ip as-path access-list 1 permit ^111$

  ---

  The correct configuration to prevent Customer AS 111 from being used as a transit path on ISP-1 is option D: ip as-path access-list 1 permit ^111$.

  This configuration creates an access-list named "1" that permits only AS paths that consist of only AS 111. The "^" character matches the beginning of the AS path, the "$" character matches the end of the AS path, and the digits "111" match the AS number. Any other AS path, including those that pass through AS 111, will not match this access-list.

• Question 195:

  Refer to the exhibits. A company with autonomous system number AS65401 has obtained IP address block 209.165.200.224/27 from ARIN. The company needed more IP addresses and was assigned block 209.165.202.128/27 from ISP2.

  

  An engineer in ISP1 reports that they are receiving ISP2 routes from AS65401. Which configuration on R1 resolves the issue?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  A. Option A

  ---

  https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/23675-27.html

• Question 196:

  You have enabled RIPng on one of the interfaces of a router with the basic configuration. You have assigned an address to that interface using the ipv6 address command.

  Which of the following statements should appear in the output of the show running-config command executed on the router? (Choose all that apply.)

  A. ipv6 unicast-routing
  B. ipv6 enable
  C. ipv6 rip enable
  D. ipv6 router rip
  E. ipv6 unnumbered
  F. ipv6 prefix-list
  A. ipv6 unicast-routing
  C. ipv6 rip enable

  ---

  The ipv6 unicast-routing and ipv6 rip enable statements should appear in the output of the show running-config command.

  The ipv6 unicast-routing command is one of the basic IPv6 commands that needs to be executed on any router for IPv6 processing. This command is executed in the global configuration mode to allow IPv6 packet forwarding on the router.

  When it has been executed the ipv6 unicast-routing statement will appear in the output of the show run command.

  The ipv6 rip enable command allows you to enable RIPng on a router interface. You should execute this command to create a RIPng routing process. When it has been executed the ipv6 rip enable statement will appear in the output of the show run command.

  The ipv6 router rip command allows you to work with RIPng routing process by entering the router configuration mode for RIPng. It will only appear if modifications have been made to the RIPng routing process, which is not mentioned in this case.

  The commands to configure a router with RIPng is as follows:

  rtrA(config)# ipv6 unicast-routing

  rtrA(config)# interface Fa0/1

  rtrA(config-if)# ipv6 rip rip process enable

  rtrA(config-if)# ipv6 address 2001:1:1:1::1/64

  Important note: in the command set above, the command that enables the RIP process on interface Fa0/1 is executed before the command assigning the IPv6 address. The order of execution of those two commands does not matter. However, if a configuration file is copied and pasted into a router, then the order in which the statements appear does matter.

  For example, if the partial configuration below were pasted into a router, the IPv6 RIP process 56 would not be enabled on Fa0/0:

  ip unicast routing

  interface Fa0/0

  ipv6 rip 56 enable

  ipv6 address 2001:1:1:1::1/64

  The system would reject the ipv6 rip 56 enable command because an IPv6 address is not yet present. If the commands were reversed in the file, the system would accept the ipv6 rip 56 enable command.

  In the scenario, the ipv6 enable command does not appear in the show running-config output. This command enables IPv6 routing on a router interface that has not been assigned an IPv6 address. In this case, an IPv6 address is explicitly assigned to the router interface by using the ipv6 address command. Therefore, the ipv6 enable command is not required.

  The ipv6 unnumbered interface type command does not appear in the show running-config output. This command will allow you to enable IPv6 without assigning an IPv6 address to a router interface.

  Objective:

  Layer 3 Technologies

  Sub-Objective:

  Describe RIPng

  References:

  Cisco IPv6 Implementation Guide, Release 15.2MandT > Implementing RIP for IPv6 > How to Implement RIP for IPv6 > Enabling the IPv6 RIP Process Cisco IPv6 Implementation Guide, Release 15.2MandT > Implementing RIP for IPv6 > Configuration Examples for IPv6 RIP > Examples: IPv6 RIP Configuration Cisco IOS IPv6 Command Reference > ipv6 ospf dead-interval through ipv6 split-horizon eigrp > ipv6 rip enable Cisco IOS IPv6 Command Reference > ipv6 ospf dead-interval through ipv6 split-horizon

  eigrp > ipv6 router rip Cisco > Cisco IOS IPv6 Command Reference > ipv6 prefix-list Cisco IOS IPv6 Command Reference > ipv6 summary-address through mpls ldp router-id > ipv6 unnumbered

• Question 197:

  You have two routers connected to each other that are both running the EIGRP protocol. The routers have built a neighbor relationship and are exchanging routing information. You execute the following command on the EIGRP process on Router 1:

  router1(config)# router eigrp 100 router1(config-router)# passive-interface

  What will be the effect of this command?

  A. Only routing advertisements from Router 1 to Router 2 will be prevented.
  B. Only router advertisements to and from Router 1 will be prevented.
  C. All hellos and routing updates will be prevented, and the neighbor relationship between Router 1 and Router 2 will be broken.
  D. Hellos will be prevented, but routing updates will continue to be sent out.
  C. All hellos and routing updates will be prevented, and the neighbor relationship between Router 1 and Router 2 will be broken.

  ---

  The effect of the passive-interface command is dependent on the routing protocol. With RIP, the command prevents the sending of route updates, but does not prevent the reception of route updates. With EIGRP, the passive-interface command prevents both the sending and receiving of route updates, and also the sending of hellos. Without hello packets, the routers are unable to maintain the neighbor relationship, upon which all communications including route updates depend.

  If the intent was to preventing routing updates from Router 1 to Router 2 while still allowing updates from Router 2 to Router 1, the routing updates must be filtered out and denied on Router 1 with a distribute list, as shown in the following command set:

  router1(config)access-list 101 deny any

  router1(config)#router eigrp 100

  router1(config-router)distribute-list 101 out

  Objective:

  Layer 3 Technologies

  Sub-Objective:

  Troubleshoot passive interfaces

  References:

  Cisco IOS Master Command List, Release 12.4T > p through r > passive-interface Cisco > Home > Support > Technology Support > IP > IP Routing > Design > Design Technotes > Filtering Routing Updates on Distance Vector IP Routing Protocols

• Question 198:

  Refer to the exhibit.

  

  After a security audit, the administrator implemented an ACL in the route reflector. The RR became unreachable from any router in the network. Which two actions resolve the issue? (Choose two.)

  A. Enable the ND proxy feature on the default gateway.
  B. Configure a link-local address on the Ethernet0/1 interface.
  C. Permit ICMPv6 neighbor discovery traffic in the ACL.
  D. Remove the ACL entry 80.
  E. Change the next hop of the default route to the link-local address of the default gateway.
  C. Permit ICMPv6 neighbor discovery traffic in the ACL.
  D. Remove the ACL entry 80.

  ---

• Question 199:

  

  Refer to the exhibit. An engineer configured summarization for the R1 loopback addresses, but it failed. Which action permits the successful advertisement of the R1 loopback addresses?

  A. Configure EIGRP 100 with a network statement for Loopback0 and then redistribute the static route for Loopback50.
  B. Configure EIGRP 100 with a network statement for Loopback0 and redistribute the connected route for Loopback50.
  C. Configure EIGRP 100 with a network statement for Loopback0 and remove the leak map for Loopback50.
  D. Configure a 100.1.1.1 permit statement in the prefix list LOOPBACK50 and redistribute the connected route for Loopback50.
  B. Configure EIGRP 100 with a network statement for Loopback0 and redistribute the connected route for Loopback50.

• Question 200:

  Refer to the exhibit.

  

  An organization is installing a new L3 MPLS link to establish DMVPN Phase 2 tunnels between the hub and two spoke routers. Which additional configuration should the engineer implement on each device to achieve optimal routing between the spokes?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  B. Option B

  ---

  There is no need for tunnel destination and we need gre multipoint tunnel mode The OSPF priority of hub must be higher than the priority of spokes. A good source: https://networklessons.com/cisco/ccie-routing-switching/dmvpn-phase-2-basic-configuration https://networklessons.com/cisco/ccie-routing-switching/dmvpn-phase-2-ospf-routing