Cisco 350-401 Online Practice Questions and Exam Preparation

Cisco 350-401 Online Questions & Answers

• Question 1291:

  Which two components are required for MPLS Layer 3 VPN configuration? (Choose two)

  A. Use MP-BGP for customer routes.
  B. Use LDP for customer routes.
  C. Use a unique RD per customer VRF.
  D. Use pseudowire for Layer 2 routes
  E. Use OSPF between PE and CE
  A. Use MP-BGP for customer routes.
  C. Use a unique RD per customer VRF.

• Question 1292:

  Refer to the exhibit.

  

  R1 has a BGP neighborship with a directly connected router on interface Gi0/0.

  Which command set is applied between the iterations of show ip bgp 2.2.2.2?

  A. R1(config)#router bgp 65001 R1(config-router)#neighbor 192.168.50.2 shutdown
  B. R1(config)#router bgp 65002 R1(config-router)#neighbor 192.168.50.2 shutdown
  C. R1(config)#no ip route 192.168.50.2 255.255.255.255 Gi0/0
  D. R1(config)#ip route 2.2.2.2 255.255.255.255 192.168.50.2
  D. R1(config)#ip route 2.2.2.2 255.255.255.255 192.168.50.2

• Question 1293:

  Which AP mode allows administrators to generate pcap files to use for troubleshooting?

  A. Sniffer
  B. Local
  C. H-REAP
  D. Monitor
  A. Sniffer

• Question 1294:

  SIMULATION

  Guidelines

  This is a lab item in which tasks will be performed on virtual devices.

  1. Refer to the Tasks tab to view the tasks for this lab item.

  2. Refer to the Topology tab to access the device console(s) and perform the tasks.

  3. Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.

  4. All necessary preconfigurations have been applied.

  5. Do not change the enable password or hostname for any device.

  6. Save your configurations to NVRAM before moving to the next item.

  7. Click Next at the bottom of the screen to submit this lab and move to the next question.

  8. When Next is clicked, the lab closes and cannot be reopened.

  

  OSPF is partially configured. Complete the OSPF configurations to achieve these goals:

  1. Configure OSPF on router R1 according to the topology so that all networks are advertised. Do not use the network statement under the "router ospf" configuration section to accomplish this task.

  2. Configure a single command on the ABR routers to ensure only one summary route is advertised to area 0.

  A. See the solution below in Explanation.
  B. Place Holder
  C. Place Holder
  D. Place Holder
  A. See the solution below in Explanation.

  ---

  Explanation

  R1

  conf t

  router ospf 10

  router-id 10.0.0.1

  exit

  interface lo0

  ip ospf 10 area 0

  exit

  interface e0/0

  ip ospf 10 area 0

  exit

  interface e0/1

  ip ospf 10 area 0

  end

  wr

  R2

  conf t

  router ospf 10

  area 10 range 10.1.0.0 255.255.0.0

  end

  wr

  R3

  conf t

  router ospf 10

  area 20 range 10.2.0.0 255.255.0.0

  end

  wr

• Question 1295:

  Which protocol does Cisco SD-WAN use to protect control plane communication?

  A. STUN
  B. OMP
  C. IPsec
  D. DTLS
  D. DTLS

• Question 1296:

  In OSPF, which LSA type is responsible for pointing to the ASBR router?

  A. type 1
  B. type 2
  C. type 3
  D. type 4
  D. type 4

  ---

  Explanation

  Summary ASBR LSA (Type 4) ?Generated by the ABR to describe an ASBR to routers in other areas so that routers in other areas know how to get to external routes through that ASBR. For example, suppose R8 is redistributing external route (EIGRP, RIP...) to R3. This makes R3 an Autonomous System Boundary Router (ASBR). When R2 (which is an ABR) receives this LSA Type 1 update, R2 will create LSA Type 4 and flood into Area 0 to inform them how to reach R3.

  When R5 receives this LSA it also floods into Area 2.

  In the above example, the only ASBR belongs to area 1 so the two ABRs (R2 & R5) send LSA Type 4 to area 0 & area 2 (not vice versa). This is an indication of the existence of the ASBR in area 1.

  Note:

  + Type 4 LSAs contain the router ID of the ASBR.

  + There are no LSA Type 4 injected into Area 1 because every router inside area 1 knows how to reach R3. R3 only uses LSA Type 1 to inform R2 about R8 and inform R2 that R3 is an ASBR.

• Question 1297:

  Which JSON script is properly formatted?

  

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

• Question 1298:

  Refer to the exhibit.

  

  Link1 is a copper connection and Link2 is a fiber connection. The fiber port must be the primary port for all forwarding. The output of the show spanning-tree command on SW2 shows that the fiber port is blocked by spanning tree. An engineer enters the spanning-tree port-priority 32 command on G0/1 on SW2, but the port remains blocked.

  Which command should be entered on the ports that are connected to Link2 to resolve the issue?

  A. Enter spanning-tree port-priority 32 on SW1.
  B. Enter spanning-tree port-priority 224 on SW1.
  C. Enter spanning-tree port-priority 4 on SW2.
  D. Enter spanning-tree port-priority 64 on SW2.
  A. Enter spanning-tree port-priority 32 on SW1.

  ---

  Explanation

  SW1 needs to block one of its ports to SW2 to avoid a bridging loop between the two switches. Unfortunately, it blocked the fiber port Link2. But how does SW2 select its blocked port? Well, the answer is based on the BPDUs it receives from SW1. answer 'Enter spanning-tree port-priority 32 on SW1' BPDU is superior than another if it has:

  1. answer 'Enter spanning-tree port-priority 32 on SW1' lower Root Bridge ID 2. answer 'Enter spanning-tree port-priority 32 on SW1' lower path cost to the Root

  3. answer 'Enter spanning-tree port-priority 32 on SW1' lower Sending Bridge ID 4. answer 'Enter spanning-tree port-priority 32 on SW1' lower Sending Port ID These four parameters are examined in order. In this specific case, all the BPDUs sent by SW1 have the same Root Bridge ID, the same path cost to the Root and the same Sending Bridge ID. The only parameter left to select the best one is the Sending Port ID (Port ID = port priority + port index). And the port index of Gi0/0 is lower than the port index of Gi0/1 so Link 1 has been chosen as the primary link.

  Therefore we must change the port priority to change the primary link. The lower numerical value of port priority, the higher priority that port has. In other words, we must change the port-priority on Gi0/1 of SW1 (not on Gi0/1 of SW2) to a lower value than that of Gi0/0.

• Question 1299:

  Refer to the exhibit.

  

  Which command must be applied to R2 for an OSPF neighborship to form?

  A. network 20.1.1.2.0.0.0.0 area 0
  B. network 20.1.1.2 255.255.0.0. area 0
  C. network 20.1.1.2.0.0.255.255 area 0
  D. network 20.1.1.2 255.255.255 area 0
  A. network 20.1.1.2.0.0.0.0 area 0

  ---

  Explanation

  The network 20.0.0.0 0.0.0.255 area 0 command on R2 did not cover the IP address of Fa1/1 interface of R2 so OSPF did not run on this interface. Therefore we have to use the command network 20.1.1.2 0.0.255.255 area 0 to turn on OSPF

  on this interface.

  Note: The command network 20.1.1.2 0.0.255.255 area 0 can be used too so this answer is also correct but answer C is the best answer here. The network 0.0.0.0 255.255.255.255 area 0 command on R1 will run OSPF on all active

• Question 1300:

  Refer to the exhibit.

  

  The traceroute fails from R1 to R3.

  What is the cause of the failure?

  A. The loopback on R3 Is in a shutdown stale.
  B. An ACL applied Inbound on loopback0 of R2 Is dropping the traffic.
  C. An ACL applied Inbound on fa0/1 of R3 is dropping the traffic.
  D. Redistribution of connected routes into OSPF is not configured.
  C. An ACL applied Inbound on fa0/1 of R3 is dropping the traffic.

  ---

  Explanation

  We see in the traceroute result the packet could reach 10.99.69.5 (on R2) but it could not go any further so we can deduce an ACL on R3 was blocking it.

  Note: Record option displays the address(es) of the hops (up to nine) the packet goes through.