Cisco CCNP Enterprise 350-401 Questions & Answers

• Question 341:

  What is a characteristic of Cisco DNA southbound APIs?

  A. implements monitoring by using the SOAP protocol

  B. enables orchestration and automation of network devices based on intent

  C. utilizes REST API

  D. simplifies management of network devices

  Correct Answer: B

  outhbound is primarily aimed at non-Cisco "thirdparty" devices!

  Northbound: Discovery and management of the network over REST API Southbound: SDK integration into the DNA Center via device packs to support multivendor environment Eastbound: Event / Notification Handler Westbound: Integration of reporting, analysis, service management

• Question 342:

  What is one difference between the RIB and the FIB?

  A. The RIB keeps all routing information received from peers, and the FIB keeps the minimum information necessary to make a forwarding decision.

  B. The RIB works at the data plane, and the FIB works at the control plane.

  C. The FIB contains routing prefixes, and the RIB contains the Layer 2 and Layer 3 information necessary to make a forwarding decision.

  D. The RIB is known as the CEF table, and the FIB is known as the routing table.

  Correct Answer: A

• Question 343:

  What is a characteristic of an AP operating in FlexConnect mode?

  A. All traffic traverses the WLC to ensure policy enforcement on client traffic.

  B. Forwarding for locally switched traffic continues when the AP loses connectivity to the WLC.

  C. APs connect in a mesh topology and elect a root AP

  D. FlexConnect enables an AP to connect to multiple WLCs.

  Correct Answer: B

• Question 344:

  What is the benefit of using TCAM for IP forwarding decisions versus using the CAM table?

  A. TCAM finds results based on binary, and CAM uses the longest match to find results

  B. TCAM processes lookups in a hardware CPU. and CAM relies on binary masks to find results.

  C. TCAM finds results based on masks, and CAM finds results basing on exact match.

  D. TCAM uses low cost hardware memory to store addresses, and CAM uses expensive hardware memory.

  Correct Answer: B

  The problem with CAM is that it can only do exact matches on ones and zeros (binary CAMs) https://community.cisco.com/t5/networking-knowledge-base/cam-content-addressable-memory-vs-tcam-ternary-content/ta-p/3107938 By implementing router prefix lookup in TCAM, we are moving process of Forwarding Information Base lookup from software to hardware. https://howdoesinternetwork.com/2015/tcam-memory

• Question 345:

  What is used to measure the total output energy of a Wi-Fi device?

  A. dBi

  B. EIRP

  C. mW D. dBm

  Correct Answer: C

  Output power is measured in mW (milliwatts). answer 'dBi' milliwatt is equal to one thousandth (10-3) of a watt.

• Question 346:

  A client with IP address 209.165.201.25 must access a web server on port 80 at 209.165.200.225. To allow this traffic, an engineer must add a statement to an access control list that is applied in the inbound direction on the port connecting

  to the web server.

  Which statement allows this traffic?

  A. permit tcp host 209 165 200 225 eq 80 host 209.165.201.25

  B. permit tcp host 209 165.201 25 host 209.165.200.225 eq 80

  C. permit tcp host 209.165.200 225 It 80 host 209.165.201.25

  D. permit tcp host 209.165.200.225 host 209.165.201.25 eq 80

  Correct Answer: A

• Question 347:

  A customer has two Cisco WLCs that manage separate APs throughout a building. Each WLC advertises the same SSID but terminates on different interfaces. Users report that they drop their connections and change IP addresses when roaming. Which action resolves this issue?

  A. Configure high availability.

  B. Enable fast roaming.

  C. Configure mobility groups.

  D. Enable client load balancing

  Correct Answer: C

  Mobility or roaming services enables a WLAN client to retain its association !!!seamlessly!!! while moving from one Access Point to another. Cisco WLAN controllers (WLC) can be organized into wireless mobility groups to support intercontroller roaming.

• Question 348:

  What is modularity in network design?

  A. ability to bundle several functions into a single layer of the network

  B. ability to create self-contained, repeatable sections of the network

  C. ability to self-heal the network to prevent service outages

  D. ability to scale and accommodate future needs of the network

  Correct Answer: D

  You can design a campus network in a logical manner, using a modular approach. In this approach, each layer of the hierarchical network model can be broken into basic functional units. These units, or modules, then can be sized appropriately and connected, while allowing for future scalability and expansion. https://www.ccexpert.us/root-bridge/modular-network-design.html

• Question 349:

  Which DNS record type is required to allow APs to discover a WLC by using DNS on IPv4?

  A. NS

  B. A

  C. SOA

  D. MX

  Correct Answer: B

  For AP discovery of WLC via DNS you need an `A-record' for cisco-lwapp-controller with the Mgmt IP of the WLC (not AP Mgr interface).

• Question 350:

  Refer to the exhibit.

  

  An engineer is using XML in an application to send information to a RESTCONF-enabled device. After sending the request, the engineer gets this response message and an HTTP response code of 400. What do these responses tell the engineer?

  A. The Accept header sent was application/xml

  B. POST was used instead of PUT to update

  C. The Content-Type header sent was application/xml.

  D. JSON body was used

  Correct Answer: A