Cisco CCNP Enterprise 300-415 Questions & Answers

• Question 191:

  How many subnets are necessary in Azure VNet for a WAN Edge device to function in the cloud deployment?

  A. CSR is the WAN Edge device that is supported in the Microsoft cloud. The Microsoft underlay cloud fabric performs the management function.

  B. There must be three subnets in VNet: management, public, and services.

  C. One public subnet is required in VNet. The Microsoft underlay cloud fabric performs all of the routing functions for WAN Edge.

  D. Public and services subnets are required in VNet. The Microsoft underlay cloud fabric performs the management function.

  Correct Answer: D

  In an Azure cloud deployment of a WAN Edge device (like a Cisco CSR), you typically need at least two subnets within your Azure Virtual Network (VNet): one for public-facing traffic (public subnet) and another for internal services (services subnet). The Microsoft Azure cloud fabric handles the underlying management functions, so you don't need a separate management subnet. This configuration allows you to separate public-facing traffic from internal services and manage the WAN Edge device effectively.

• Question 192:

  Which two sets of identifiers does OMP carry when it advertises TLOC routes between WAN Edge routers? (Choose two.)

  A. TLOC public and private address, carrier, and preference

  B. source and destination IP address, MAC, and site ID

  C. system IP address, link color, and encapsulation

  D. VPN ID, local site network, and BGP next-hop IP address

  E. TLOC public and private address, tunnel ID, and performance

  Correct Answer: AC

  The identifiers that OMP carry when advertising TLOC routes to WAN Edge devices are:

  1.

  System IP address of the OMP speaker that originates the OMP route

  2.

  Color to identify the link type

  3.

  Encapsulation type on the transport tunnel

  Origin (Source of the route, such as BGP, OSPF, connected, and static, and the metric associated with the original route).

  Originator (OMP identifier of the originator of the route, which is the IP address from which the route was learned).

  Preference (Degree of preference for an OMP route. A higher preference value is more preferred).

  Service (Network service associated with the OMP route).

  Site ID (Identifier of a site within the Cisco SD-WAN overlay network domain to which the OMP route belongs).

• Question 193:

  Refer to the exhibit.

  

  The Cisco SD-WAN network is configured with a default full-mesh topology. An engineer wants Paris WAN Edge to use the Internet HOC as the preferred TLOC for MSN Messenger and AOL Messenger traffic. Which policy achieves this goal?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C

• Question 194:

  Refer to the exhibit.

  

  The Cisco SD-WAN is deployed using the default topology. The engineer wants to configure a service insertion policy such that all data traffic between Rome to Paris is forwarded through the NGFW located in London. Which configuration fulfills this requirement, assuming that the Service VPN ID is 1?

  

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C

• Question 195:

  An engineer must configure two branch WAN Edge devices where an Internet connection is available and the controllers are in the headquarters. The requirement is to have IPsec VPN tunnels established between the same colors. Which configuration meets the requirement on both WAN Edge devices?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: B

• Question 196:

  Refer to the exhibit.

  

  An engineer configured OMP with an overlay-as of 10666. What is the AS-PATH for prefix 104.104.104.104/32 on R100?

  A. 100 10666

  B. 100 20 104

  C. 100 10666 20 104

  D. 100 10666 104

  Correct Answer: D

• Question 197:

  How is an event monitored and reported for an individual device in the overlay network at site ID:S4300T6E43F36?

  A. The device sends event notifications to vManage.

  B. The device sends notifications to vSmart that sends them to vManage.

  C. The device sends a critical alarm of events to vManage.

  D. The device sends a critical alarm to vSmart that sends it to vManage.

  Correct Answer: A

• Question 198:

  Which table is used by the vSmart controller to maintain service routes of the WAN Edge routers in the hub and local branches?

  A. RIB

  B. FIB

  C. OMP

  D. TLOC

  Correct Answer: C

  On Cisco SD-WAN Controllers and edge routers, OMP advertises to its peers the routes and services that it has learned from its local site, along with their corresponding transport location mappings, which are called Transport Locations (TLOCs). These routes are called OMP routes, to distinguish them from standard IP routes. It is through OMP routes that the Cisco SD-WAN Controllers learn the network topology and the available services.

• Question 199:

  Refer to the exhibit.

  

  A customer wants to implement primary and secondary Cisco SD-WAN overlay routing for prefixes that are advertised for both data centers. The east data center (TLOC 101.101.101.101) is primary for east sites, and the west data center (TLOC 100.100.100.100) is primary for west sites. Which configuration change achieves this objective?

  

  Preference 400 is prefered over 200

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A

• Question 200:

  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

  Correct Answer: B

  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.