Cisco 400-007 Cisco Certified Design Expert Online Training
Cisco 400-007 Online Training
The questions for 400-007 were last updated at Oct 18,2025.
- Exam Code: 400-007
- Exam Name: Cisco Certified Design Expert
- Certification Provider: Cisco
- Latest update: Oct 18,2025
As network designer, which option is your main concern with regards to virtualizing multiple network zones into a single hardware device?
- A . Fate sharing
- B . CPU resource allocation
- C . Congestion control
- D . Security
- E . Bandwidth allocation
A Service Provider is designing a solution for a managed CE service to a number of local customers using a single CE platform and wants to have logical separation on the CE platform using Virtual Routing and Forwarding (VRF) based on IP address ranges or packet length.
Which is the most scalable solution to provide this type of VRF Selection process on the CE edge device?
- A . Static Routes for Route Leaking
- B . Policy Based Routing
- C . OSPF per VRF Instance
- D . Multi-Protocol BGP
Company XYZ wants to improve the security design of their network to include protection from reconnaissance and DoS attacks on their sub interfaces destined toward next hop routers.
Which technology can be used to prevent these types of attacks?
- A . MPP
- B . CPPr
- C . CoPP
- D . DPP
Company XYZ has a multicast domain that spans across multiple autonomous systems. The company wants to choose a technology that provides simplified and controlled approach to interconnecting the multicast domains.
Which technology is the best fit for this purpose?
- A . MSDP
- B . PIM SSM
- C . MPLS
- D . PIM sparse mode
An existing wireless network was designed to support data traffic only. You must now install context.
Aware services for location tracking changes must be applied to the existing wireless network to increase the location accuracy? (Chose two)
- A . Add access points along the perimeter of the coverage area.
- B . Increase the access point density to create an average inter-access point distance of less than 40 feet or 12.2 meters
- C . Use directional antennas to provide more cell overlapping
- D . Install additional access points in monitor mode where the co-channel interference would otherwise be affected
- E . Fine tune the radio configuration of the access point to have a higher average transmission power to achieve better coverage
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 . uses policy-based forwarding of real-time traffic with less complexity
- D . unifies the WAN backbone
- E . manages failures through backup links
Which design benefit of bridge assurance is true?
- A . It supposes a spanning-tee topology change upon connecting and disconnecting a station on a port
- B . It prevents switched traffic from traversing suboptimal paths on the network.
- C . It allows small, unmanaged switches to be plugged into ports of access switches without the risk of switch loops.
- D . It prevents switch loops caused by unidirectional point-to-point link condition on Rapid PVST + and MST
How must the queue sizes be designed to ensure that an application functions correctly?
- A . Each individual device queuing delay in the chain must be less than or equal to the application required delay.
- B . The queuing delay on every device in the chain must be exactly the same to the application required delay.
- C . The default queue sizes are good for any deployment as it compensates the serialization delay.
- D . The sum of the queuing delay of all devices plus serialization delay in the chain must be less than or equal to the application required delay.
An enterprise that runs numerous proprietary applications has major issues with its on-premises server estate hardware, to the point where business-critical functions are compromised. The enterprise accelerates plans to migrate services to the cloud.
Which cloud service should be used if the enterprise wants to avoid hardware issues yet have control of its applications and operating system?
- A . SaaS
- B . PaaS
- C . laaS
- D . hybrid cloud
As a network designer you need to support an enterprise with hundreds of remote sites connected over a single WAN network that carries different types of traffic, including VoIP, video, and data applications which of following design considerations will not impact design decision?
- A . Focus on the solution instead of the problem, which helps to reduce downtime duration
- B . The location of the data collection
- C . What direction the data or flows should be metered
- D . Identify traffic types and top talkers over this link