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Cisco 400-007 exam is designed to assess the knowledge and skills of network architects, senior network engineers, and other IT professionals who are involved in network design. 400-007 exam covers a wide range of topics, including network infrastructure, security, and services. It also tests candidates on their ability to identify and solve complex network design issues.

Cisco 400-007 Exam is a certification exam for network designers who wish to validate their skills and knowledge in designing complex and large-scale networks. It is also known as the Cisco Certified Design Expert (CCDE v3.0) Written exam. 400-007 exam is designed to test the candidate's skills in designing, analyzing, and optimizing complex network infrastructures.

Cisco Certified Design Expert (CCDE v3.0) Written Exam Sample Questions (Q47-Q52):

NEW QUESTION # 47
The controller has a global view of the network, and it can easily ensure that the network is in a consistent and optimal configuration. Which two statements describe a centralized SDN control path? (Choose two.)

A. Scaling of the centralized controller cluster is challenging for services like DHCP and load-balancing.
B. The centralized controller can support all southbound APIs, which allows for easy integration with legacy equipment.
C. It is highly-available by design with no single-point-of-failure risks present.
D. Integrating smart NIC capabilities on the local host level is made easier through REST APIs.
E. It significantly improves the latency when performing reactive handling of PACKET_IN events.

Answer: A,E

Explanation:
* A (Scaling challenges for services):Centralized SDN controllers may experience scalability challenges for distributed services like DHCP and load balancing since these often require real-time responsiveness and distributed service locality.
* D (Latency in reactive handling):Centralized controllers may introduce additional latency during reactive PACKET_IN event handling as control decisions traverse the control plane before forwarding happens.
Other options explained:
* B: Centralized controllers still present failure domain risks; high-availability must be explicitly designed.
* C: Smart NICs operate primarily at the host level, often independently of centralized SDN controllers.
* E: Legacy equipment often lacks support for many SDN southbound APIs.

NEW QUESTION # 48
SD-WAN can be used to provide secure connectivity to remote offices, branch offices, campus networks, data centers, and the cloud over any type of IP-based underlay transport network. Which two statements describe SD WAN solutions? (Choose two.)

A. Improved operational efficiencies result In cost savings.
B. SD-WAN networks are inherently protected against slow performance.
C. Solutions allow for variations of commodity and specialized switching hardware.
D. Solutions include centralized orchestration, control, and zero-touch provisioning.
E. Control and data forwarding planes are kept separate.

Answer: D,E

NEW QUESTION # 49
Refer to the exhibit.

ACME Mining has four data centers in Santiago. Cape Town. Mumbai, and Beijing, full-mesh connected via a 400 Mb/s EVP-LAN They want to deploy a new mission-critical application with these requirements:
* cluster heartbeat 2 Mb/s continuous (250 KB/s)
* cluster heartbeat one-way maximum latency 100 ms
These are the current ping tests results between the four data centers:

Which hosting data center pair can host the new application?

A. Cape Town and Mumbai
B. Cape Town and Beijing
C. Santiago and Beijing
D. Santiago and Mumbai
E. Santiago and Cape Town
F. Mumbai and Beijing

Answer: A

NEW QUESTION # 50
Two routers R1 and R2 are directly connected through an Ethernet link Both routers are running OSPF. OSPF has been registered with BFD and BFD is running in asynchronous mode with the echo function enabled Which two actions occur that are related to the echo function? (Choose two)

A. BFD echo packets are sent from forwarding engines along the Layer 2 path to perform detection
B. DUMPS BFD sessions at either end actively participate in the forwarding of echo packets
C. BFD control packets are sent at a higher pace because the echo function is enabled
D. BFD control packets are sent at a slower pace because the echo function is enabled
E. Only BFD control packets are sent from forwarding engines along the Layer 2 path to perform detection

Answer: A,D

NEW QUESTION # 51
QUESTION 69 Refer to the exhibit. AJI links are P2P Layer 3. A high availability application is synchronizing data between host A and host B. To increase chance of delivery the same data is sent twice from host A on two different NICs toward the two NICs on host B.

Which solution must be deployed in the network to ensure that any failure in the network does not trigger data loss on host B?

A. BFD
B. IP Fast Reroute
C. EIGRP with feasible successors
D. Static routes

Answer: C

NEW QUESTION # 52
......

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William Harris William Harris

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