Cisco - 400-007 - Unparalleled Reliable Cisco Certified Design Expert (CCDE) Written Exam Test Book

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Cisco 400-007 Exam Syllabus Topics:

Section	Weight	Objectives
Service Design	15%	- Incorporate automation and network programmability 1. Infrastructure as Code tool adoption 2. Data parsing structures using JSON and XML formats - Design infrastructure and network virtualization 1. MPLS architecture implementations such as LDP and Segment Routing 2. Cloud integration models including hybrid and multi-cloud environments
Security Design	15%	- Design secure infrastructure controls 1. Network virtualization security and microsegmentation 2. Layer 2 and Layer 3 security defense mechanisms - Design secure perimeter and edge boundaries 1. Enterprise cryptography architectures and VPN frameworks 2. Firewall and Intrusion Prevention System deployment modes
Network Design	30%	- Design Service Provider and Enterprise WAN architectures 1. Software-Defined WAN design implementations 2. Data center interconnect solutions 3. WAN transport technologies including MPLS, Layer 3 VPN, and Metro Ethernet - Design resilient and scalable campus architectures 1. Layer 2 and Layer 3 boundary definitions 2. High availability techniques and fast convergence mechanisms
Business Strategy Design	15%	- Assess business goals and drivers 1. Analyze company financial metrics and drivers like CAPEX, OPEX, and ROI 2. Determine regulatory and compliance constraints 3. Evaluate risk management and business continuity strategies - Evaluate project management methodologies impact 1. Waterfall framework implementation constraints 2. Agile framework and iterative lifecycle alignment
Control, Data, Management Plane and Operational Design	25%	- Design control plane routing architectures 1. IPv4 and IPv6 dual-stack infrastructure transitions 2. Unicast routing protocols including OSPF, EIGRP, IS-IS, and BGP 3. Multicast routing designs and protocol options - Design data plane transport and management plane strategies 1. End-to-end Quality of Service policies 2. Network visibility, telemetry, and logging infrastructures

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Cisco Certified Design Expert (CCDE) Written Exam Sample Questions (Q188-Q193):

NEW QUESTION # 188
Which type of interface are OpenFlow and OpFlex?

A. eastbound interface
B. northbound interface
C. cloud-bound interface
D. southbound interface

Answer: D

NEW QUESTION # 189
Company XYZ has designed their network to run GRE over IPsec on their Internet-based VPN to connect two sites. Which IPsec tunneling feature can they enable to optimize the data flow while ensuring that the headers contain no duplicate IP addresses?

A. Transport Mode in IPsec Phase I
B. Transport Mode in IPsec Phase II
C. Tunnel Mode in IPsec Phase II
D. Tunnel Mode in IPsec Phase I

Answer: B

Explanation:
B (Transport Mode in IPsec Phase II):When GRE is running over IPsec,IPsec Transport Modeis often preferred. In Transport Mode, only the payload (GRE encapsulated packet) is encrypted and authenticated, while the original IP header remains untouched. This eliminates redundant IP headers, avoiding duplicate addressing and reducing overhead - optimizing bandwidth efficiency across the Internet VPN.
GRE provides the tunneling function, while IPsec in Transport Mode secures the GRE-encapsulated traffic.
Transport Mode is negotiated duringIPsec Phase II (Quick Mode), where actual data protection parameters are established.
Other options explained:
A:Phase I is for establishing secure channels, not for data encapsulation.
C:Tunnel Mode would encapsulate the entire packet (including GRE header), adding unnecessary additional IP headers in this GRE over IPsec design.
D:Tunnel Mode does not apply at Phase I - Phase I is only for IKE negotiation.

NEW QUESTION # 190
Which two features are advantages of SD-WAN compared to MPLS-based connectivity? (Choose two.)

A. uses FEC constructs for traffic forwarding, thereby improving efficiency
B. separates infrastructure and policy
C. unifies the WAN backbone
D. manages failures through backup links
E. uses policy-based forwarding of real-time traffic with less complexity

Answer: C,E

NEW QUESTION # 191
An external edge router provides connectivity from a service provider to an enterprise Which two Internet edge best practices meet compliance regulations'? (Choose two )

A. Implement filtering to control traffic that is sourced from the infrastructure IP space.
B. Use login banners and interface access lists to restrict administrative access to the system
C. Implement EBGP to advertise all owned IP blocks.
D. Send logs to a centralized logging collection server.
E. Enable and use only secure protocols.

Answer: B,E

NEW QUESTION # 192
You are designing the routing design for two merging companies that have overlapping IP address space. Which of these must you consider when developing the routing and NAT design?

A. Global to local NAT translation is done after policy-based routing.
B. Local to global NAT translation is done after routing
C. Global to local NAT translation is done before routing.
D. Local to global NAT translation is done before policy-based routing

Answer: C

NEW QUESTION # 193
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