Cisco CCNP Enterprise 300-410 Questions & Answers

• Question 191:

  Refer to the exhibit.

  

  R2 can reach Loopback222, but R1, SW1, and PC1 cannot communicate with 172.16.222.254. R1 and R2 configurations are shown here:

  

  Which EIGRP configuration command resolves the issue?

  A. R1(config-router)# redistribute static

  B. R2(config-router)# redistribute static

  C. R1(config-router)# network 172.16.222.254 0.0.0.0

  D. R1(config-router)# network 172.16.222.254 255.255.255.255

  Correct Answer: B

• Question 192:

  Refer to the exhibit.

  

  An engineer implements uRPF to increase security and stop incoming spoofed IP packets. Same asymmetrically routed packets are also blocked after the configuration. Which command resolves the issue?

  A. ip verify unicast source reachable-via any

  B. ip verify unicast source reachable-via rx

  C. ip verify unicast reverse-path

  D. ip verify unicast reverse-path any

  Correct Answer: A

• Question 193:

  Which two NLRI attributes are used by an MPLS Layer 3 VPN network to exchange VPNv4 routes between MPLS routers via MP-BGP?

  A. VPNv4 Prefix

  B. Next Hop

  C. Extended-Community

  D. IPv4 Prefix

  E. RT

  Correct Answer: BD

  https://networklessons.com/mpls/mpls-layer-3-vpn-explained

• Question 194:

  Refer to the exhibit.

  

  An engineer observes that every time the ICMP packet is lost at a polling interval, track 1 goes down, which causes unnecessary disruption and instability in the network. The engineer does not want the traffic to be rerouted if the loss of ICMP packets is negligible. If the packet loss is persistent for a longer duration, the track must go down and the traffic must be rerouted. Which action resolves the issue?

  A. Change the IP SLA schedule to run only at certain intervals.

  B. Increase the timeout value from 1000 to 1500.

  C. Define a delay timer under track 1.

  D. Increase the threshold value from 1000 to 1500.

  Correct Answer: C

  https://community.cisco.com/t5/switching/delay-down-timer-frequency-timer-interaction-with-ip-sla-during/td-p/2808130

• Question 195:

  Refer to the exhibit.

  

  An engineer is troubleshooting a prefix advertisement issue from R3, which is not directly connected to R1.

  Which configuration resolves the issue?

  A. R2(config)#router bgp 64512 R2(config-router)#neighbor 192.168.20.10 next-hop-self

  B. R1(config)#router bgp 64512 R1(config-router)#neighbor 192.168.10.20 next-hop-self

  C. R1(config)#router bgp 64512 R1(config-router)#neighbor 192.168.20.20 next-hop-self

  D. R2(config)#router bgp 64512 R2(config-router)#neighbor 192.168.10.20 next-hop-self

  Correct Answer: A

• Question 196:

  Refer to the exhibit.

  

  Which action resolves the issue?

  A. Establish connectivity between the NTP server and the switch.

  B. Configure the local time on the SW1 device.

  C. Configure the local time on Cisco DNA Center.

  D. Establish connectivity between the NTP server and Cisco DNA Center.

  Correct Answer: A

• Question 197:

  Refer to the exhibit.

  

  A network engineer troubleshooting a packet drop problem for the host 172.16.100.5 notices that only one link is used and installed on the routing table, which saturates the bandwidth. Which action must the engineer take to resolve the high bandwidth utilization problem and share the traffic toward this host between the two available links?

  A. Disable the eigrp split horizon loop protection mechanism.

  B. Set the eigrp variance equal to 3 to install a second route with a metric not larger than 3 times of the best metric.

  C. Change the EIGRP delay metric to meet the feasibility condition.

  D. Set the eigrp variance equal to 4 to install a second route with a metric not larger than 4 times of the best metric.

  Correct Answer: C

  From the output of the "show ip eigrp topology ..." command, we notice network 172.16.100.5/32 was learned via two routes:

  +

  From 10.4.1.5 with FD = 409600 and AD = 128256

  +

  From 10.3.1.6 with FD = 435200 and AD = 409600

  To use both paths (called unequal cost load balancing) with EIGRP, the second path must satisfy the feasibility condition. The feasibility condition states that, the Advertised Distance (AD) of a route must be lower than the feasible distance of

  the current successor route.

  In this case, the second path did not satisfy the feasible condition as its AD (409600) is equal to the FD of the best path -> Therefore we cannot configure load balancing with "variance" command.

• Question 198:

  Refer to the exhibit.

  

  EIGRP peering was lost.

  Which configuration resolves the issue?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: D

• Question 199:

  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

  Correct Answer: 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

• Question 200:

  Refer to the exhibit.

  

  An engineer must configure the hub router to add new offices in the same infrastructure without performing any further configurations at the hub router. Which tunnel mode configuration on the hub router meets this requirement?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: B