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CCDE 400-007 Certification Pracatice Questions & Mock Tests, CCDE Written exam | SPOTO

Prepare for success in the CCDE 400-007 certification exam with SPOTO's comprehensive collection of practice questions and mock tests tailored for the CCDE Written exam. This exam, CCDE v3.0 Written (400-007), assesses your ability to gather and clarify network functional requirements, develop network designs aligned with functional specifications, create implementation plans, and articulate design decisions and their rationale effectively. It covers expert-level knowledge in areas such as business strategy design, control, data, and management plane design, network design, service design, and security design. Access our high-quality practice tests, exam dumps, and exam questions with answers to bolster your exam preparation. Utilize our exam simulator and sample questions for optimal readiness, ensuring your success in the CCDE Written exam.
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Question #1
Company XYZ is redesigning their QoS policy. Some of the applications used by the company are realtime applications. The QoS design must give these applications preference in terms of transmission. Which QoS strategy can be used to fulfill the requirement? A.weighted fair queuing B.weighted random early detection C.low-latency queuing D.first-in first-out
Company XYZ is redesigning their QoS policy. Some of the applications used by the company are realtime applications
View answer
Correct Answer: BD

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Question #2
Company XYZ has a hub-and-spoke topology over an SP-managed infrastructure. To measure traffic performance metrics, they implemented IP SLA senders on all spoke CE routers and an IP SLA responder on the hub CE router. What must they monitor to have visibility on the potential performance impact due to the constantly increasing number of spoke sites?
A. CPU and memory usage on the spoke routers
B. memory usage on the hub router C
View answer
Correct Answer: AE
Question #3
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
View answer
Correct Answer: B
Question #4
Which relationship between IBGP and the underlying physical topology is true?
A. iBGP full mesh requirement does not dictate any specific network topology
B. iBGP can worn only on a ring network topology with a link-state protocol like OSPF or IS-IS C
View answer
Correct Answer: B
Question #5
Traffic was equally balanced between Layer 3 links on core switches SW1 and SW2 before an introduction of the new video server in the network. This video server uses multicast to send video streams to hosts and now one of the links between core switches is over utilized Which design solution solves this issue?
A. Add more links between core switches
B. Aggregate links Layer 2 link aggregation
E. Filter IGMP joins on an over -utilized link
View answer
Correct Answer: C
Question #6
Which two actions ensure voice quality in a branch location with a low-speed, high-latency WAN connection? (Choose two.)
A. Increase WAN bandwidth
B. Increase memory branch switch
View answer
Correct Answer: C
Question #7
Which Interconnectivity method offers the fastest convergence in the event of a unidirectional issue between three Layer 3 switches connected together with routed links in the same rack in a data center?
A. Copper Ethernet connectivity with BFD enabled
B. Copper Ethernet connectivity with UDLD enabled C
View answer
Correct Answer: CD
Question #8
Which function is performed at the access layer of the three-layer hierarchical network design model?
A. fault isolation
B. QoS classification and marking boundary C
E. redundancy and load balancing
View answer
Correct Answer: CE
Question #9
Which two features control multicast traffic in a VLAN environment? (Choose two)
A. IGMP snooping
B. MLD snooping C
E. pruning
View answer
Correct Answer: AB
Question #10
A BGP route reflector in the network is taking longer than expected to coverage during large network changes. Troubleshooting shows that the router cannot handle all the TCP acknowledgements during route updates. Which action can be performed to tune the device performance?
A. Increase the size of the hold queue
B. Increase the size of the large buffers
View answer
Correct Answer: C
Question #11
Which two application requirements are mandatory tor traffic to receive proper treatment when placed in the priority queue? (Choose two.)
A. small transactions (HTTP-like behavior)
B. WRED drop treatment C
E. TCP-based application
View answer
Correct Answer: A
Question #12
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
View answer
Correct Answer: C
Question #13
You want to mitigate failures that are caused by STP loops that occur before UDLD detects the failure or that are caused by a device that is no longer sending BPDUs. Which mechanism do you use along with UDLD?
A. Root guard B
View answer
Correct Answer: A
Question #14
As part of workspace digitization, a large enterprise has migrated all their users to Desktop as a Sen/ice (DaaS), by hosting the backend system in their on-premises data center. Some of the branches have started to experience disconnections to the DaaS at periodic intervals, however, local users in the data center and head office do not experience this behavior. Which technology can be used to mitigate this issue?
A. tail drop
B. traffic shaping C
View answer
Correct Answer: C
Question #15
An enterprise network has two core routers that connect to 200 distribution routers and uses fullmesh IBGP peering between these routers as its routing method. The distribution routers are experiencing high CPU utilization due to the BGP process. Which design solution is the most cost effective? A.Implement route reflectors on the two core routers
B. Increase the memory on the core routers C
E. Increase bandwidth between the core routers
View answer
Correct Answer: B
Question #16
Which two data plane hardening techniques are true? (Choose two) A.warning banners
B. redundant AAA servers C
E. infrastructure ACLs
F. disable unused services G
View answer
Correct Answer: C
Question #17
A multicast network is sing Bidirectional PIM. Which two combined actions achieve high availability so that two RPs within the same network can act in a redundant manner? (Choose two)
A. Use two phantom RP addresses
B. Manipulate the administration distance of the unicast routes to the two RPs C
E. Use anycast RP based on MSDP peering between the two RPs
F. Control routing to the two RPs through a longest match prefix
View answer
Correct Answer: C
Question #18
Which purpose of a dynamically created tunnel interface on the design of IPv6 multicast services Is true?
A. first-hop router registration to the RP B
View answer
Correct Answer: AF
Question #19
You have been asked to design a high-density wireless network for a university campus. Which two principles would you apply in order to maximize the wireless network capacity? (Choose two.)
A. Implement a four-channel design on 2
B. Choose a high minimum data rate to reduce the duty cycle
E. Enable 802
View answer
Correct Answer: EF
Question #20
Which effect of using ingress filtering to prevent spoofed addresses on a network design is true?
A. It reduces the effectiveness of DDoS attacks when associated with DSCP remarking to Scavenger
B. It protects the network Infrastructure against spoofed DDoS attacks
View answer
Correct Answer: D
Question #21
Company XYZ has a new network based on IPv6. Some of the subnets that they are planning to use will be confidential and need an addressing scheme that confines them to the local campus network. Which type of IPv6 addresses can be used for these networks in the IPv6 addressing design?
A. local addresses
B. private addresses C
View answer
Correct Answer: D
Question #22
Which two conditions must be met for EIGRP to maintain an alternate loop-free path to a remote network? (Choose two.)
A. The Reported Distance from a successor is lower than the local Feasible Distance
B. The Reported Distance from a successor is higher than the local Feasible Distance
E. A feasible successor must be present
View answer
Correct Answer: AD
Question #23
How can EIGRP topologies be designed to converge as fast as possible in the event of a point-topoint link failure?
A. Limit the query domain by use of distribute lists
B. Build neighbor adjacencies in a triangulated fashion
E. Limit the query domain by use of default routes
View answer
Correct Answer: D
Question #24
The enterprise customer wants to stream one-way video from their head office to eight branch offices using multicast. Their current service provider provides a Layer3 VPN solution and manages the CE routers, but they do not currently support multicast. Which solution quickly allows this multicast traffic to go through while allowing for future scalability?
A. Enable a GRE tunnel between nodes CE1 and CE2
B. Enable a GRE tunnel between nodes C2 and C4 C
E. The service provider must provide a Draft Rosen solution to enable a GRE tunnel between nodes PE1 and PE2
View answer
Correct Answer: B
Question #25
Which two mechanisms avoid suboptimal routing in a network with dynamic mutual redistribution between multiple OSPFv2 and EIGRP boundaries? (Choose two.)
A. AD manipulation
B. matching OSPF external routes C
E. route filtering
F. matching EIGRP process ID
View answer
Correct Answer: D
Question #26
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. Mumbai and Beijing
B. Santiago and Cape Town C
E. Cape Town and Beijing
F. Santiago and Beijing
View answer
Correct Answer: D
Question #27
Company XYZ wants to secure the data plane of their network. Which two technologies can be included in the security design? (Choose two) A.DAI B.IP Source Guard C.BEEP D.CPPr E.MPP
Company XYZ wants to secure the data plane of their network. Which two technologies can be included in the security design? (Choose two) A
View answer
Correct Answer: AB
Question #28
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 dropped due to an unsuccessful RPF check against the multicast source
B. It is switched give that no RPF check is performed C
View answer
Correct Answer: B
Question #29
How many fully established neighbour relationships exist on an Ethernet with five routers running OSPF as network type broadcast? A.5 B.6 C.7 D.10
E. 20
View answer
Correct Answer: A

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