Cisco 350-401 Online Practice Questions and Exam Preparation

Cisco 350-401 Online Questions & Answers

• Question 681:

  What are two characteristics of vManage APIs? (Choose two.)

  A. Southbound API is based on OMP and DTLS.
  B. Northbound API is RESTful, using JSON.
  C. Northbound API is based on RESTCONF and JSON.
  D. Southbound API is based on NETCONF and XML.
  E. Southbound API is based on RESTCONF and JSON.
  B. Northbound API is RESTful, using JSON.
  D. Southbound API is based on NETCONF and XML.

• Question 682:

  Which JSON script is properly formatted?

  

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

• Question 683:

  Which statement about multicast RPs is true?

  A. RPs are required only when using protocol independent multicast dense mode.
  B. RPs are required for protocol independent multicast sparse mode and dense mode.
  C. By default, the RP is needed periodically to maintain sessions with sources and receivers
  D. By default, the RP is needed only to start new sessions with sources and receivers.
  D. By default, the RP is needed only to start new sessions with sources and receivers.

  ---

  Explanation

  A rendezvous point (RP) is required only in networks running Protocol Independent Multicast sparse mode (PIM-SM).

  By default, the RP is needed only to start new sessions with sources and receivers. Reference: https://www.cisco.com/c/en/us/td/docs/ios/solutions_docs/ip_multicast/White_papers /rps.html For your information, in PIM-SM, only network segments with active receivers that have explicitly requested multicast data will be forwarded the traffic. This method of delivering multicast data is in contrast to the PIM dense mode (PIM-DM) model. In PIM-DM, multicast traffic is initially flooded to all segments of the network. Routers that have no downstream neighbors or directly connected receivers prune back the unwanted traffic.

  https://www.cisco.com/c/en/us/td/docs/ios/solutions_docs/ip_multicast/White_papers/rps.html

• Question 684:

  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.

  Topology

  

  Tasks

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

  1. Configure R3 and R20 so they do not participate in a DR/BDR election process in Area 20.

  2. Configure R10 so it is always the DR for Area 10. Do not change the router ID.

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

  ---

  Explanation

  R3

  Config t int e0/1 ip ospf priority 0

  R20

  Config t int e0/0 ip ospf priority 0

  R10

  Config t int e0/0 ip ospf priority 255

• Question 685:

  Refer to exhibit.

  

  What are two reasons for IP SLA tracking failure? (Choose two )

  A. The destination must be 172.30 30 2 for icmp-echo
  B. The threshold value is wrong
  C. A route back to the R1 LAN network is missing in R2
  D. The source-interface is configured incorrectly.
  E. The default route has the wrong next hop IP address
  C. A route back to the R1 LAN network is missing in R2
  D. The source-interface is configured incorrectly.

  ---

  Explanation

  Timeout (in milliseconds) sets the amount of time an IP SLAs operation waits for a response from its request packet. In other words, the timeout specifies how long the router should wait for a response to its ping before it is considered failed.Threshold (in milliseconds too) sets the upper threshold value for calculating network monitoring statistics created by an IP SLAs operation. Threshold is used to activate a response to IP SLA violation, e.g. send SNMP trap or start secondary SLA operation. In other words, the threshold value is only used to indicate over threshold events, which do not affect reachability but may be used to evaluate the proper settings for the timeout command.

  For reachability tracking, if the return code is OK or OverThreshold, reachability is up; if not OK, reachability is down.

  This tutorial can help you revise IP SLA tracking topic:

  http://www.firewall.cx/cisco-technical-knowledgebase/cisco-routers/813-cisco-router-ipslabasic.html

  Note: Maybe some of us will wonder why there are these two commands:

  R1(config)#ip route 0.0.0.0 0.0.0.0 172.20.20.2 track 10 R1(config)#no ip route 0.0.0.0 0.0.0.0 172.20.20.2 In fact the two commands:

  ip route 0.0.0.0 0.0.0.0 172.20.20.2 track 10 ip route 0.0.0.0 0.0.0.0 172.20.20.2 are different. These two static routes can co-exist in the routing table. Therefore if the tracking goes down, the first command will be removed but the second one still exists and the backup path is not preferred. So we have to remove the second one.

• Question 686:

  Which language defines the structure or modeling of data for NETCONF and RESTCONF?

  A. YAML
  B. YANG
  C. JSON
  D. XML
  B. YANG

• Question 687:

  DRAG DROP

  Drag and drop the characteristics from the left onto the corresponding switching architectures on the right.

  Select and Place:

  

  

• Question 688:

  What is the role of vSmart in a Cisco SD-WAN environment?

  A. to establish secure control plane connections
  B. to monitor, configure, and maintain SD-WAN devices
  C. to provide secure data plane connectivity over WAN links
  D. to perform initial authentication of devices
  A. to establish secure control plane connections

  ---

  Explanation

  https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/sdwan-xe-gs-book/system-overview.html

• Question 689:

  Refer to the exhibit.

  

  Which configuration must be applied to ensure that the preferred path for traffic from AS 65010 toward AS 65020 uses the R2 to R4 path?

  A. R4(config)# router bgp 65020R4(config-router)# bgp default local-preference 300R5(config)# router bgp 65020R5(config-router)# bgp default local-preference 200
  B. R2(config)# router bgp 65010R2(config-router)# bgp default local-preference 300R1(config)# router bgp 65010R1(config-router)# bgp default local-preference 200
  C. R2(config)# router bgp 65010R2(config-router)# bgp default local-preference 200R1(config)# router bgp 65010R1(config-router)# bgp default local-preference 300
  D. R4(config)# router bgp 65020R4(config-router)# bgp default local-preference 200R5(config)# router bgp 65020R5(config-router)# bgp default local-preference 300
  B. R2(config)# router bgp 65010R2(config-router)# bgp default local-preference 300R1(config)# router bgp 65010R1(config-router)# bgp default local-preference 200

• Question 690:

  DRAG DROP

  Drag and drop the descriptions of the VSS technology from the left to the right. Not all options are used.

  Select and Place: