Cisco 300-415 Online Practice Questions and Exam Preparation

Cisco 300-415 Online Questions & Answers

• Question 191:

  Refer to the exhibit.

  

  The SD-WAN network is configured with a default full-mesh topology. The network engineer wants the Rome WAN Edge to use the MPLS TLOC as the preferred TLOC when handling Telnet traffic, as long as the MPLS link has the following characteristics:

  Loss: 5% Latency: 100 ms Jitter: 100 ms

  Which configuration must the network engineer use to create a list that classifies the MPLS link characteristics?

  

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

  ---

  Configuration Analysis: The configurations provided in the images must be evaluated to determine which option correctly classifies the MPLS link based on the given criteria of loss, latency, and jitter. Preferred TLOC Configuration: The network engineer needs to configure the SD-WAN policy to prefer the MPLS transport for Telnet traffic, ensuring the link characteristics match the specified thresholds.

  References:

  Cisco SD-WAN Policy Configuration Guide

  Cisco SD-WAN Transport and TLOC Configuration Guide

• Question 192:

  DRAG DROP

  Drag and drop the policies from the left onto the correct policy types on the right.

  Select and Place:

  

  

• Question 193:

  An engineer must create a QoS policy by creating a class map and assigning it to the LLQ queue on a WAN Edge router.

  Which configuration accomplishes the task?

  

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

  ---

• Question 194:

  DRAG DROP

  Drag and drop the actions from the left into the correct sequence on the right to create a data policy to direct traffic to the Internet exit.

  Select and Place:

  

  

  ---

  Reference: https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/policies/vedge/policies-book/vEdge-as-NAT-device.html

• Question 195:

  Which protocol is configured on tunnels by default to detect loss, latency, jitter, and path failures in Cisco SD-WAN?

  A. TLS
  B. BFD
  C. OMP
  D. BGP
  B. BFD

  ---

  An Application-Aware Routing (App-route) policy allows the SD-WAN fabric to monitor the quality of network paths in real-time and do SLA-driven routing across the best available transports. App-route policies rely on BFD to detect performance issues such as packet loss, latency, and jitter on the overlay tunnels.

• Question 196:

  Refer to the exhibit.

  

  The ge0/0 interface connects to a 30-MB link. A network administrator wants to always have 10 MB available for high priority traffic. When lower-priority traffic busts exceed 20 MB. Traffic should be redirected to the second WAN interface ge0/1. Which set of configurations accomplishes this task?

  

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

  ---

  https://www.cisco.com/c/dam/en/us/td/docs/routers/sdwan/configuration/config-18-4.pdf#page=546

• Question 197:

  Which configuration step is taken on vManage after WAN Edge list is uploaded to support the on-boarding process before the device comes online?

  A. Verify the device certificate
  B. Enable the ZTP process
  C. Set the device as valid
  D. Send the list to controllers
  C. Set the device as valid

  ---

  https://www.cisco.com/c/dam/en/us/td/docs/solutions/CVD/SDWAN/sd-wan-wan-edge-onboarding-deploy-guide-2020jan.pdf

• Question 198:

  Which plane builds and maintains the network topology and makes decisions on traffic flows?

  A. data
  B. orchestration
  C. management
  D. control
  D. control

  ---

  In Cisco SD-WAN, the plane responsible for building and maintaining the network topology and making decisions on traffic flows is the Control Plane. The Control Plane in Cisco SD-WAN is managed by the vSmart controllers, which are responsible for orchestrating network policies, maintaining the network topology, and making intelligent routing decisions.

• Question 199:

  An engineer is configuring a centralized policy to influence network route advertisement. Which controller delivers this policy to the fabric?

  A. vSmart
  B. vManage
  C. WAN Edge
  D. vBond
  A. vSmart

• Question 200:

  Which attributes are configured to uniquely identify and represent a TLOC route?

  A. system IP address, link color, and encapsulation
  B. origin, originator, and preference
  C. site ID, tag, and VPN
  D. firewall, IPS, and application optimization
  A. system IP address, link color, and encapsulation

  ---

  TLOC routes are the logical tunnel termination points on the vEdge routers that connect into a transport network. A TLOC route is uniquely identified and represented by a three-tuple, consisting of system IP address, link color, and encapsulation (Generic Routing Encapsulation [GRE] or IPSec). In addition to system IP address, color, and encapsulation, TLOC routes also carry attributes such as TLOC private and public IP addresses, carrier, preference, site ID, tag, and weight. For a TLOC to be considered in an active state on a particular vEdge, an active BFD session must be associated with that vEdge TLOC.

  https://www.cisco.com/c/dam/en/us/td/docs/solutions/CVD/SDWAN/CVD-SD-WAN-Design-2018OCT.pdf