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400-007 Official Practice Test Help You Pass the 400-007 Exam Easily

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Cisco Certified Design Expert (CCDE) certification is one of the most prestigious certifications in the networking industry. It is recognized as a mark of excellence in network design and is highly valued by employers. The CCDE certification is designed for experienced network professionals who have a deep understanding of network technologies and are capable of designing and implementing complex network solutions. Passing the Cisco 400-007 Exam is an important step towards achieving the CCDE certification and advancing your career in the networking industry.

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Certification 400-007 Questions - 400-007 Reliable Dumps Questions

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Cisco 400-007 Certification Exam covers a wide range of topics related to network design. 400-007 exam tests the knowledge of the candidates in areas such as network topology design, network optimization, network security, and network virtualization. 400-007 exam also tests the ability of the candidates to design solutions that meet the business requirements of organizations.

Cisco 400-007 certification exam is an essential step for IT professionals who want to enhance their skills and knowledge in network design. It is a challenging exam that requires a deep understanding of network design principles, methodologies, and best practices. Passing the exam and earning the CCDE certification is a significant achievement that can open up new career opportunities and help IT professionals stand out in a competitive job market.

Cisco Certified Design Expert (CCDE v3.0) Written Exam Sample Questions (Q309-Q314):

NEW QUESTION # 309
Refer to the exhibit.

As part of a redesign project, you must predict multicast behavior. What happens to the multicast traffic received on the shared tree (*,G), if it is received on the LHR interface indicated?

A. It is switched given that no RPF check is performed
B. It is dropped due to an unsuccessful RPF check against the multicast source
C. It is switched due to a successful RPF check against the routing table
D. It is dropped due to an unsuccessful RPF check against the multicast receiver.

Answer: C

Explanation:
In PIM Sparse Mode, when the Last-Hop Router (LHR) receives multicast traffic on the shared tree (*,G), it performs an RPF check based on the RP address, not the multicast source address. In the diagram:
* The LHR has IGP cost 10 towards the RP.
* The shared tree (*,G) uses RP as the RPF target.
* Since multicast traffic on (*,G) arrives on the interface toward RP (correct RPF interface), the RPF check succeeds.
Therefore, the multicast traffic is successfully switched toward the receivers.
This behavior is fully aligned with CCDE v3.1 multicast design principles, which emphasize clear understanding of RPF behavior both on shared trees (*,G) and source trees (S,G).
Why other options are incorrect:
* A: The RPF check is not performed against the source in (*,G); it uses RP.
* B: RPF checks are always performed, even on (*,G).
* D: RPF is unrelated to the receiver address.

NEW QUESTION # 310
Which action must be taken before new VoIP systems are implemented on a network to ensure that the network is ready to handle the traffic?

A. low bandwidth
B. security
C scalability
C. high latency

Answer: A

NEW QUESTION # 311
Which protocol does an SD-Access wireless Access Point use for its fabric data plane?

A. CAPWAP
B. VXLAN
C. MPLS
D. GRE
E. LISP

Answer: B

Explanation:
In Cisco SD-Access architecture, fabric-enabled wireless APs connect to the network usingCAPWAPfor control, but their data plane is integrated into thefabric overlayusingVXLAN (Virtual Extensible LAN).
* VXLANis the data plane encapsulation used between fabric nodes, including wireless APs that are part of the SD-Access fabric.
* WhileCAPWAP (E)remains in use for management and control communication between the AP and wireless LAN controller (WLC), actual user traffic is encapsulated in VXLAN for fabric forwarding.
This separation of control and data plane ensures seamless mobility, segmentation, and policy enforcement within the SD-Access fabric.

NEW QUESTION # 312
Drag and drop the optical technology design characteristics on the left to the correct optical technologies on the right. Not all options are used

Answer:

Explanation:

NEW QUESTION # 313
Which two application requirements are mandatory for traffic to receive proper treatment when placed in the priority queue? (Choose two.)

A. Tolerance to packet loss
B. Small transactions (HTTP-like behavior)
C. Intolerance to jitter
D. WRED drop treatment
E. TCP-based application

Answer: C,E

Explanation:
The priority queue (strict priority queue) is intended for real-time, delay-sensitive traffic like voice and certain video, which have:
* D. Intolerance to jitter: Real-time traffic requires consistent latency.
* E. TCP-based application: Many real-time video streams and some financial trading apps use TCP but still require minimal jitter and latency.
CCDE v3.1 emphasizes that strict priority queue should only be used for traffic highly sensitive to delay and jitter to avoid starving other queues.
Why other options are incorrect:
* A: HTTP-like small transactions are delay-tolerant.
* B: WRED (Weighted Random Early Detection) is used for congestion avoidance, not prioritization.
* C: Priority queue is specifically for traffic intolerant to loss and jitter.
-

NEW QUESTION # 314
......

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