Cisco CCNP Enterprise 350-401 Questions & Answers

• Question 561:

  What is the purpose of a data modeling language?

  A. to describe the structure and meaning of exchanged data

  B. to standardize the procedures that are executed when parsing sent and received data

  C. to establish a framework to process data by using an object-oriented programming approach

  D. to specify the rules for transcoding between text and binary data encodings

  Correct Answer: A

  Data models enable data to be easily structured, grouped, and replicated to represent information related to network devices, features, and solutions. https://developer.cisco.com/docs/nx-os/#!the-nature-of-data-models

• Question 562:

  Which Python library is used to work with YANG data models via NETCONF?

  A. Postman

  B. requests

  C. nccllent

  D. cURL

  Correct Answer: C

  Python files usually start with "from ncclient import manager"

• Question 563:

  What is the result of applying this access control list?

  ip access-list extended STATEFUL 10 permit tcp any any established 20 deny ip any any

  A. TCP traffic with the URG bit set is allowed

  B. TCP traffic with the SYN bit set is allowed

  C. TCP traffic with the ACK bit set is allowed

  D. TCP traffic with the DF bit set is allowed

  Correct Answer: C

  The established keyword is only applicable to TCP access list entries to match TCP segments that have the ACK and/or RST control bit set (regardless of the source and destination ports), which assumes that a TCP connection has already been established in one direction only. Let's see an example below:

  

  Suppose you only want to allow the hosts inside your company to telnet to an outside server but not vice versa, you can simply use an "established" access-list like this: access-list 100 permit tcp any any established access-list 101 permit tcp any any eq telnet ! interface S0/0 ip access-group 100 in ip access-group 101 out

• Question 564:

  How does Protocol Independent Multicast function?

  A. In sparse mode it establishes neighbor adjacencies and sends hello messages at 5-second intervals.

  B. It uses the multicast routing table to perform the multicast forwarding function.

  C. It uses unicast routing information to perform the multicast forwarding function.

  D. It uses broadcast routing information to perform the multicast forwarding function.

  Correct Answer: C

  Although PIM is called a multicast routing protocol, it actually uses the unicast routing table to perform the reverse path forwarding (RPF) check function instead of building up a completely independent multicast routing table. Unlike other routing protocols, PIM does not send and receive routing updates between routers.

  Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16/imc-pim-xe-16-book/imc-tech-oview.html

• Question 565:

  Where in Cisco DNA Center is documentation of each API call, organized by its functional area?

  A. Developer Toolkit

  B. platform management

  C. platform bundles

  D. Runtime Dashboard

  Correct Answer: A

  https://developer.cisco.com/docs/dna-center/#!api-quick-start/cisco-dna-center-platform-api-overview

• Question 566:

  Which TLV value must be added to Option 43 when DHCP is used to ensure that APs join the WLC?

  A. 0x77

  B. AAA

  C. 0xf1

  D. 642

  Correct Answer: C

  https://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/97066-dhcp-option-43-00.html

• Question 567:

  How does SSO work with HSRP to minimize network disruptions?

  A. It enables HSRP to elect another switch in the group as the active HSRP switch.

  B. It ensures fast failover in the case of link failure.

  C. It enables data forwarding along known routes following a switchover, white the routing protocol reconverges.

  D. It enables HSRP to failover to the standby RP on the same device.

  Correct Answer: D

  SSO HSRP alters the behavior of HSRP when a device with redundant Route Processors (RPs) is configured for stateful switchover (SSO) redundancy mode. When an RP is active and the other RP is standby, SSO enables the standby RP to take over if the active RP fails. The SSO HSRP feature enables the Cisco IOS HSRP subsystem software to detect that a standby RP is installed and the system is configured in SSO redundancy mode. Further, if the active RP fails, no change occurs to the HSRP group itself and traffic continues to be forwarded through the current active gateway device.

  Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_fhrp/configuration/15-s/fhp-15-sbook/ fhp-hsrp-sso.html

• Question 568:

  Refer to the exhibit Which configuration enables password checking on the console line, using only a password?

  

  A. router(config)# line con 0 router(config-line)# login

  B. router(config)# line con 0 router(config-line)# exec-timeout 0 0

  C. router(config)# line vty 0 4 router(config-line)# login

  D. router(config)# line con 0 router(config-line)# login local

  Correct Answer: A

• Question 569:

  An engineer is connected to a Cisco router through a Telnet session. Which command must be issued to view the logging messages from the current session as soon as they are generated by the router?

  A. logging buffer

  B. service timestamps log uptime

  C. logging host

  D. terminal monitor

  Correct Answer: D

• Question 570:

  In a Cisco StackWise Virtual environment, which planes are virtually combined in the common logical switch?

  A. management and data

  B. control and management

  C. control, and forwarding

  D. control and data

  Correct Answer: B

  Read the "StackWise Virtual architecture" from the link below:

  https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-9000/nb-06-cat-9k-stack-wp-cte-en.html