Cisco Certified Design Expert (CCDE) Written practice questions

1. Question 1 of 25

   Select 2

   Which two types of planning approaches are used to develop business-driven network designs and to facilitate the design decisions? (Choose two.)

   • Astrategic planning approach
   • Bbusiness optimization approach
   • Ctactical planning approach
   • Dmodular approach
   • Ecost optimization approach

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   Correct answer: A, C

   How others answered

   • AC100%

2. Question 2 of 25

   An architect receives a business requirement from a CTO that states the RTO and RPO for a new system should be as close as possible to zero. Which replication method and data center technology should be used?

   • Asynchronous replication over geographically dispersed dual data centers via MPLS
   • Bsynchronous replication over dual data centers via Metro Ethernet
   • Casynchronous replication over geographically dispersed dual data centers via CWDM
   • Dasynchronous replication over dual data centers via DWDM

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   Correct answer: B

   How others answered

   • B85%
   • A15%

3. Question 3 of 25

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   What are two primary design constraints when a robust infrastructure solution is created? (Choose two.)

   • Acomponent availability
   • Bmonitoring capabilities
   • Cproject time frame
   • Dstaff experience
   • Etotal cost

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   Correct answer: C, E

   How others answered

   • CE69%
   • AE15%
   • AB8%
   • AC8%

   Only 69% agreed on this answer — treat it as contested rather than settled.

4. Question 4 of 25

   Select 2

   Company XYZ is planning to deploy primary and secondary (disaster recovery) data center sites. Each of these sites will have redundant SAN fabrics and data protection is expected between the data center sites. The sites are 100 miles (160 km) apart and target RPO/RTO are 3 hrs and 24 hrs, respectively. Which two considerations must Company XYZ bear in mind when deploying replication in their scenario? (Choose two.)

   • ATarget RPO/RTO requirements cannot be met due to the one-way delay introduced by the distance between sites.
   • BVSANs must be extended from the primary to the secondary site to improve performance and availability.
   • CVSANs must be routed between sites to isolate fault domains and increase overall availability.
   • DSynchronous data replication must be used to meet the business requirements.
   • EAsynchronous data replication should be used in this scenario to avoid performance impact in the primary site.

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   Correct answer: C, E

   How others answered

   • CE68%
   • BE18%
   • BD9%
   • DE5%

   Only 68% agreed on this answer — treat it as contested rather than settled.

5. Question 5 of 25

   

   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?

   • AMumbai and Beijing
   • BCape Town and Mumbai
   • CCape Town and Beijing
   • DSantiago and Mumbai
   • ESantiago and Beijing
   • FSantiago and Cape Town

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   Correct answer: B

   How others answered

   • B100%

6. Question 6 of 25

   

   Refer to the table. A customer investigates connectivity options for a DCI between two production data centers to aid a large-scale migration project. The solution must provide a single 10G connection between locations and be able to run its own varying QoS profiles without service provider interaction based on the migration stages. All connectivity methods are at 10 Gbps. Which transport technology costs the least if the connectivity is required for just one year?

   • ADWDM over dark fiber
   • BMetro Ethernet
   • CMPLS wires only
   • DCWDM over dark fiber

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   Correct answer: D

   How others answered

   • D100%

7. Question 7 of 25

   

   Refer to the table. A customer investigates connectivity options for a DCI between two production data centers. The solution must provide dual 10G connections between locations with no single points of failure for Day 1 operations. It must also include an option to scale for up to 20 resilient connections in the second year to accommodate isolated SAN over IP and isolated dedicated replication IP circuits. All connectivity methods are duplex 10 Gbps. Which transport technology costs the least over two years in this scenario?

   • ACWDM
   • BDWDM
   • CMPLS
   • DMetro Ethernet

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   Correct answer: B

   How others answered

   • B82%
   • D14%
   • A5%

8. Question 8 of 25

   Select 2

   What are two examples of business goals to be considered when a network design is built? (Choose two.)

   • Aintegrate endpoint posture
   • Bensure faster obsolescence
   • Cminimize operational costs
   • Dreduce complexity
   • Estandardize resiliency

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   Correct answer: C, D

   How others answered

   • CD88%
   • CE13%

9. Question 9 of 25

   

   Refer to the table. A customer investigates connectivity options for a DCI between two production data centers to aid a large-scale migration project. The migration is estimated to take 20 months to complete but might extend an additional 10 months if issues arise. All connectivity options meet the requirements to migrate workloads. Which transport technology provides the best ROI based on cost and flexibility?

   • ADWDM over dark fiber
   • BMPLS
   • CCWDM over dark fiber
   • DMetro Ethernet

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   Correct answer: D

   How others answered

   • D100%

10. Question 10 of 25

    SDWAN networks capitalize the usage of broadband Internet links over traditional MPLS links to offer more cost benefits to enterprise customers. However, due to the insecure nature of the public Internet, it is mandatory to use encryption of traffic between any two SDWAN edge devices installed behind NAT gateways. Which overlay method can provide optimal transport over unreliable underlay networks that are behind NAT gateways?

    • ADTLS
    • BTLS
    • CIPsec
    • DGRE

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    Correct answer: C

    How others answered

    • C58%
    • A42%

    Only 58% agreed on this answer — treat it as contested rather than settled.

11. Question 11 of 25

    Company XYZ wants to use the FCAPS ISO standard for network management design. The focus of the design should be to monitor and keep track of any performance issues by continuously collecting and analyzing statistical information to monitor, correct, and optimize any reduced responsiveness across the network. Which layer accomplishes this design requirement?

    • Asecurity management
    • Bperformance management
    • Caccounting management
    • Dfault management

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    Correct answer: B

    How others answered

    • B100%

12. Question 12 of 25

    Company XYZ has implemented policy-based routing in their network. Which potential problem must be kept in mind about network reconvergence and PBR?

    • AIt can limit network scalability.
    • BIt can create microloops during reconvergence.
    • CIt reduces convergence time.
    • DIt increases convergence time.

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    Correct answer: B

    How others answered

    • B89%
    • A11%

13. Question 13 of 25

    Select 2

    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.)

    • AControl and data forwarding planes are kept separate.
    • BSolutions allow for variations of commodity and specialized switching hardware.
    • CSD-WAN networks are inherently protected against slow performance.
    • DSolutions include centralized orchestration, control, and zero-touch provisioning.
    • EImproved operational efficiencies result in cost savings.

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    Correct answer: A, D

    How others answered

    • AD57%
    • DE43%

    Only 57% agreed on this answer — treat it as contested rather than settled.

14. Question 14 of 25

    Company XYZ is in the process of identifying which transport mechanism(s) to use as their WAN technology. Their main two requirements are: * a technology that could offer DPI, SLA, secure tunnels, privacy, QoS, scalability, reliability, and ease of management * a technology that is cost-effective Which WAN technology(ies) should be included in the design of company XYZ?

    • ABoth technologies should be used. Each should be used to back up the other one; where the primary links are MPLS, the Internet should be used as a backup link with IPsec (and vice versa).
    • BMPLS meets all these requirements and it is more reliable than using the Internet. It is widely used with clearly defined best practices and an industry standard.
    • CSoftware-defined WAN should be the preferred choice because it complements both technologies, covers all the required features, and it is the most cost- effective solution.
    • DInternet should be the preferred option because it is cost effective and supports BFD, IP SLA, and IPsec for secure transport over the public Internet.

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    Correct answer: C

    How others answered

    • C100%

15. Question 15 of 25

    The Company XYZ network is experiencing attacks against their router. Which type of Control Plane Protection must be used on the router to protect all control plane IP traffic that is destined directly for one of the router interfaces?

    • AControl Plane Protection transit subinterface
    • BControl Plane Protection host subinterface
    • CControl Plane Protection CEF-exception subinterface
    • DControl Plane Protection main interface

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    Correct answer: B

    How others answered

    • B100%

16. Question 16 of 25

    

    Refer to the diagram. Which solution must be used to send traffic from the foreign wireless LAN controller to the anchor wireless LAN controller?

    • ASend packets without encapsulation to the anchor controller over the routed network.
    • BEncapsulate packets into an EoIP tunnel and send them to the anchor controller.
    • CSend packets from the foreign controller to the anchor controller via Layer 3 MPLS VPN or VRF-Lite.
    • DSend packets from the foreign controller to the anchor controller via IPinIP or IPsec tunnel.

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    Correct answer: B

    How others answered

    • B100%

17. Question 17 of 25

    An architect designs a multi-controller network architecture with these requirements: * Achieve fast failover to control traffic when controllers fail. * Yield a short distance and high resiliency in the connection between the switches and the controller. * Reduce connectivity loss and enable smart recovery to improve the SDN survivability. * Improve connectivity by adding path diversity and capacity awareness for controllers. Which control plane component of the multi-controller must be built to meet the requirements?

    • Acontrol node reliability
    • Bcontrol path reliability
    • Ccontroller state consistency
    • Dcontroller clustering

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    Correct answer: B

    How others answered

    • B100%

18. Question 18 of 25

    Select 2

    Which two impacts of adding the IP event dampening feature to a network design are true? (Choose two.)

    • AIt switches traffic immediately after a link failure
    • BIt improves overall network stability
    • CIt speeds up link failure detection
    • DIt protects against routing loops
    • EIt reduces the utilization of system processing resources

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    Correct answer: B, E

    How others answered

    • BE83%
    • B17%

19. Question 19 of 25

    Select 2

    Which two control plane policer designs must be considered to achieve high availability? (Choose two.)

    • AControl plane policers are really needed only on externally facing devices.
    • BControl plane policers can cause the network management systems to create false alarms.
    • CControl plane policers require that adequate protocols overhead are factored in to allow protocol convergence.
    • DControl plane policers must be processed before a forwarding decision is made.
    • EControl plane policers are enforced in hardware to protect the software path, but they are hardware platform-dependent in terms of classification ability.

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    Correct answer: C, E

    How others answered

    • CE69%
    • DE23%
    • BC8%

    Only 69% agreed on this answer — treat it as contested rather than settled.

20. Question 20 of 25

    A small organization of 20 employees is looking to deliver a network design service for modernizing customer networks to support advanced solutions. * Project scope and weekly progress should be visualized by the management. * Always consider feedback and make changes accordingly during the project. * Should consider flexibility to change scope at the point of time. Which project methodology meets the requirements and have the least impact on the outcome?

    • ALEAN
    • BSix-Sigma
    • CScrum
    • DKanban

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    Correct answer: D

    How others answered

    • D59%
    • C41%

    Only 59% agreed on this answer — treat it as contested rather than settled.

21. Question 21 of 25

    Select 2

    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.)

    • AChoose a high minimum data rate to reduce the duty cycle.
    • BMake use of the 5-GHz band to reduce the spectrum utilization on 2.4 GHz when dual-band clients are used.
    • CEnable 802.11n channel bonding on both 2.4 GHz and 5 GHz to increase the maximum aggregated cell throughput.
    • DIncrease the number of SSIDs to load-balance the client traffic.
    • EImplement a four-channel design on 2.4 GHz to increase the number of available channels.

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    Correct answer: A, B

    How others answered

    • AB100%

22. Question 22 of 25

    A healthcare customer requested that SNMP traps must be sent over the MPLS Layer 3 VPN service. Which protocol must be enabled?

    • Asyslog
    • BSNMPv3
    • CSNMPv2
    • Dsyslog TLS
    • ESSH

    Show answer

    Correct answer: B

    How others answered

    • B100%

23. Question 23 of 25

    Which management category is not part of FCAPS framework?

    • APerformance
    • BAuthentication
    • CSecurity
    • DFault-management
    • EConfiguration

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    Correct answer: B

    How others answered

    • B100%

24. Question 24 of 25

    A BGP route reflector in the network is taking longer than expected to converge 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?

    • ADecrease the size of the small buffers.
    • BIncrease the size of the large buffers.
    • CIncrease the keepalive timers for each BGP neighbor.
    • DIncrease the size of the hold queue.

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    Correct answer: D

    How others answered

    • D100%

25. Question 25 of 25

    Select 2

    Which two conditions must be met for EIGRP to maintain an alternate loop-free path to a remote network? (Choose two.)

    • AThe Reported Distance from a successor is higher than the local Feasible Distance.
    • BA feasible successor must be present.
    • CThe Reported Distance from a successor is lower than the local Feasible Distance.
    • DThe Feasible Distance from a successor is lower than the local Reported Distance.
    • EThe feasibility condition does not need to be met.

    Show answer

    Correct answer: B, C

    How others answered

    • BC100%

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400-007 practice, question 1 of 25