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Review Questions
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The following questions are designed to test your understanding of this chapter’s material. For more
information on how to get additional questions, please see
www.lammle.com/ccna
.
You can find the answers to these questions in Appendix B, “Answers to Review Questions.”
1. Which of the following is a conge stion-avoidance mechanism?
1. LMI
2. WRED
3. QPM
4. QoS
2. Which of the following are true regarding StackWise? (Choose two.)
1. A StackWise interconnect cable is used to connect the switches to create a bidirectional, closed-
loop path.
2. A StackWise interconnect cable is used to connect the switches to create a unidirectional, closed-
loop path.
3. StackWise can connect up to nine individual switches joined in a single logical switching unit.
4. StackWise can connect up to nine individual switches joined into multiple logical switching units and
managed by one IP address.
3. Which of the following is the best definition of cloud computing?
1. UCS data center
2. Computing model with all your data at the service provider
3. On-demand computing model
4. Computing model with all your data in your local data cen ter
4. Which three features are properties and one-way requirements for voice traffic? (Choose three.)
1. Bursty voice traffic.
2. Smooth voice traffic.
3. Latency should be below 400 ms.
4. Latency should be below 150 ms.
5. Bandwidth is roughly between 30 and 128 kbps.
6. Bandwidth is roughly between 0.5 and 20 Mbps.
5. On which SDN architecture layer does Cisco APIC-EM reside?
1. Data
2. Control
3. Presentation
4. Application
6. In which cloud service model is the customer responsible for managing the operating system, software,
platforms, and applications?
1. IaaS
2. SaaS
3. PaaS
4. APIC-EM
7. Which statement about QoS trust boundaries or domains is true?
1. The trust boundary is always a router.
2. PCs, printers, and tablets are usually part of a trusted domain.
3. An IP phone is a common trust boundary.
4. Routing will not work unless the service provider and the enterprise network are one single trust
domain.
8. Which statement about IWAN is correct?
1. The IWAN allows transport-independent connectivity.
2. The IWAN allows only static routing.
3. The IWAN does not provide application visibility because only encrypted traffic is transported.
4. The IWAN needs special encrypting devices to provide an acceptable security level.
9. Which advanced classification tool can be used to classify data applications?
1. NBAR
2. MPLS
3. APIC-EM
4. ToS
10. The DSCP field constitutes how many bits in the IP header?
1. 3 bits
2. 4 bits
3. 6 bits
4. 8 bits
11. Between which two planes are SDN southbound interfaces used?
1. Control
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2. Data
3. Routing
4. Application
12. Which option is a layer 2 QoS marking?
1. EXP
2. QoS group
3. DSCP
4. CoS
13. You are starting to use SDN in your network. What does this mean?
1. You no longer have to work anymore, but you’ll get paid more.
2. You’ll need to upgrade all your applications.
3. You’ll need to get rid of all Cisco switches.
4. You now have more time to react faster when you receive a new business requirement.
14. Which QoS mechanism will drop traffic if a session uses more than the allotted bandwidth?
1. Congestion management
2. Shaping
3. Policing
4. Marking
15. Which three layers are part of the SDN architecture? (Choose three.)
1. Network
2. Data Link
3. Control
4. Data
5. Transport
6. Application
16. Which of the following is NOT true about APIC-EM ACL analysis?
1. Fast comparison of ACLs between devices to visualize difference and identify misconfigurations
2. Inspection, interrogation, and analysis of network access control policies
3. Ability to provide layer 4 to layer 7 deep-packet inspection
4. Ability to trace application-specific paths between end devices to quickly identify ACLs and other
problem areas
17. Which two of the following are not part of APIC-EM?
1. Southbound APIs are used for communication between the controllers and network devices.
2. Northbound APIs are used for communication between the controllers and network devices.
3. OnePK is Cisco proprietary.
4. The control plane is responsible for the forwarding of frames or packets.
18. When stacking switches, which is true? (Choose two.)
1. The stack is managed as multiple objects and has a single management IP address.
2. The stack is managed as a single object and has a single management IP address.
3. The master switch is chosen when you configure the first switch’s master algorithm to on.
4. The master switch is elected from one of the stack member switches.
19. Which of the following services provides the operating system and the network?
1. IaaS
2. PaaS
3. SaaS
4. None of the above
20. Which of the following services provides the required software, the operating system, and the network?
1. IaaS
2. PaaS
3. SaaS
4. None of the above
21. Which of the following is NOT a benefit of cloud computing for a cloud user?
1. On-demand, self-service resource provisioning
2. Centralized appearance of resources
3. Local backups
4. Highly available, horizontally scaled application architectures
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