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Question 1:
DRAG DROP
Drag and drop the characteristics from the left onto the configuration protocols they describe on the right.
Select and Place:
Correct Answer:
Question 2:
Which design element should an engineer consider when multicast is included in a Cisco SD-Access architecture?
A. PIM SSM must run in the underlay.
B. Multicast clients reside in the underlay, and the multicast source is outside the fabric or in the overlay.
C. Rendezvous points must be used in a PIM SSM deployment.
D. Multicast traffic is transported in the overlay and the EID space for wired and wireless clients.
Correct Answer: D
Multicast traffic is transported in the overlay, in the EID space, for both wired and wireless clients https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2018/pdf/BRKEWN-2020.pdf https://www.cisco.com/c/dam/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/deploy-guide/cisco-dna-center-sd-access-wl-dg.pdf
Question 3:
An architect is creating a migration strategy for a large organization in which the choice made by the application between IPv6 and IPv4 is based on the DNS request. Which migration strategy does the architect choose?
A. AFT for public web presence
B. host-initiated tunnels
C. dual stack
D. site-to-site IPv6 over IPv4 tunnels
Correct Answer: C
Question 4:
An organization plans to deploy multicast across two different autonomous systems. Their solution must allow RPs to:
1.
discover active sources outside their domain
2.
use the underlying routing information for connectivity with other RPs
3.
announce sources joining the group
Which solution supports these requirements?
A. SSM
B. MSDP
C. PIM-DM
D. PIM-SM
Correct Answer: B
Question 5:
An existing network solution is using BFD in echo mode. Several of the network devices are experiencing high CPU utilization which an engineer has determined is related to the BFD feature. Which solution should the engineer leverage to reduce the CPU load?
A. Implement slow timers between peers with low CPU resources.
B. Implement BED asynchronous mode between peers with low CPU resources.
C. Enable BFD multi-hop on the devices with low CPU resources.
D. Utilize carrier delay on all routers in the network.
Correct Answer: A
Question 6:
An engineer must design a multicast network for a financial application. Most of the multicast sources also receive multicast traffic (many-to-many deployment model). To better scale routing tables, the design must not use source trees. Which multicast protocol satisfies these requirements?
A. PIM-SSM
B. PIM-SM
C. MSDP
D. BIDIR-PIM
Correct Answer: D
Bidir-PIM is designed to be used for many-to-many applications within individual PIM domains. Multicast groups in bidirectional PIM mode can scale to an arbitrary number of sources without incurring overhead due to the number of sources.
Question 7:
Which two functions are provided by the Cisco SD-WAN orchestration plane? (Choose two.)
A. centralized provisioning
B. primary authentication point
C. NAT traversal facilitation
D. Zero Touch Provisioning
E. troubleshooting and monitoring
Correct Answer: BC
Question 8:
An engineer is designing an enterprise campus network. The LAN infrastructure consists of switches from multiple vendors, and Spanning Tree must be used as a Layer 2 loop prevention mechanism. All configured VLANs must be grouped in two SIP instances.
Which standards-based Spanning Tree technology supports this design solution?
A. MSTP
B. RSTP
C. Rapid PVST
D. STP
Correct Answer: A
Question 9:
A company uses cloud-based applications for voice and video calls, file sharing, content sharing, and messaging. During business hours, these applications randomly become slow and unresponsive. However, other applications work smoothly with the current applied QoS polices. Which solution must the company choose to resolve the issue?
A. Identify the applications with NBAR2 and allocate the required bandwidth accordingly.
B. Identify the port used by each application and apply a minimum bandwidth guarantee.
C. Identify the applications and reserve the required bandwidth on the perimeter routers.
D. Identify the application ports, create groupings, and rate-limit the required bandwidth.
Correct Answer: A
Explanation: using NBAR to identify application and bandwidth usage, then adjust existing QoS polices would be a more simple option. Of course, B is still ok if the network admin know all traffic and bandwidth consumption by other tools, say netflow. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_nbar/configuration/15-mt/qos-nbar- 15-mt-book/nbar-protocl-discvry.html#GUID-ED1AEDA1-AE69-45C3-A77E- 2AF881CA9C36 https://www.cisco.com/c/en/us/products/ios-nx-os-software/network-based-application- recognition-nbar/index.html
Question 10:
How is sub-second failure of a transport link detected in a Cisco SD-WAN network?
A. Hellos are sent between the WAN Edge routers and the vSmart controller.
B. BFD runs on the IPsec tunnels between WAN Edge routers.
C. BGP is used between WAN Edge routers and the vSmart controller.
D. Link state change messages are sent between vSmart controllers.
Correct Answer: B
Question 11:
In a cisco SD-Access brownfield deployment scenario, which configuration deployment must be taken with Cisco DNA center?
A. Subnet stretching
B. LAN automation
C. Automated UNDERLAY
D. Manual underlay
Correct Answer: B
Question 12:
What is the role of a control-plane node in a Cisco SD-Access architecture?
A. fabric device that connects wired endpoints to the SD-Access fabric
B. map system that manages endpoint to device relationships
C. fabric device that connects APs and wireless endpoints to the SD-Access fabric
D. map system that manages External Layer 3 networks
Correct Answer: B
Reference: https://netaavi.com/my-blog-1/f/overview-of-sda-fabric-solution
Question 13:
Which two steps can be taken to improve convergence in an OSPF network? (Choose two.)
A. Use Bidirectional Forwarding Detection
B. Merge all the areas into one backbone area
C. Tune OSPF parameters
D. Make all non-backbone areas stub areas
E. Span the same IP network across multiple areas.
Correct Answer: AC
Question 14:
Which type of rendezvous point deployment is standards-based and support dynamic RP discovery?
A. Auto-RP
B. Anycast-RP
C. bootstrap router
D. static RP
Correct Answer: C
Question 15:
What is the purpose of a control plane node in a Cisco SD-Access network fabric?
A. to maintain the endpoint database and mapping between endpoints and edge nodes
B. to detect endpoints in the fabric and inform the host tracking database of EID-to-fabric-edge node bindings
C. to identify and authenticate endpoints within the network fabric
D. to act as the network gateway between the network fabric and outside networks
Correct Answer: A
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html
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