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2016 NEW Cisco 642-996: Designing
Cisco Data Center Unified Fabric
(DCUFD) Exam Questions and Answers
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QUESTION 81
Instructions:
- THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
- To access the multiple-choice questions, click on the numbered boxes
on the left of the top panel.
- There are two multiple-choice questions with this task. Be sure to
answer all four questions before selecting the Next button.
Scenario:
Use your knowledge of Cisco VM-FEX to answer the questions associated with the VM-FEX
topologies.
Which three items represent features of VM-FEX with Cisco Nexus 5500? (Choose three)
A.
B.
C.
D.
E.
F.

Software packet switching
Hardware packet switching
802.1 Q
VN-Tag (802.1 Qbh)
Feature rich
Higher performance

Answer: BDF
QUESTION 82
Instructions:
- THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
- To access the multiple-choice questions, click on the numbered boxes
on the left of the top panel.

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- There are two multiple-choice questions with this task. Be sure to
answer all four questions before selecting the Next button.
Scenario:
Use your knowledge of Cisco VM-FEX to answer the questions associated with the VM-FEX
topologies.
Which three items represent features of VM-FEX with Cisco Nexus 1000V? (Choose three)
A.
B.
C.
D.
E.
F.

Software packet switching
Hardware packet switching
802.1 Q
VN-Tag (802.1 Qbh)
Feature rich
High performance

Answer: ACE
QUESTION 83
Instructions:
- THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
- To access the multiple-choice questions, click on the numbered boxes
on the left of the top panel.
- There are two multiple-choice questions with this task. Be sure to
answer all four questions before selecting the Next button.
Scenario:
Based on your knowledge of Cisco port channeling technologies, use the topology to answer
questions about the features of Cisco VSS and vPC.
Which three items represent features of Cisco Virtual Switching System? (Choose three)
A.
B.
C.
D.
E.
F.

Single control plane
Dual control planes
VSS appears as one switch to downstream switches
VSS appears as two switches to downstream switch
Etherchannel protocols include Static, LACP
channel protocols include Static, PAgP, PAgP+, LACP

Answer: ACF
QUESTION 84
Instructions:
- THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
- To access the multiple-choice questions, click on the numbered boxes
on the left of the top panel.
- There are two multiple-choice questions with this task. Be sure to
answer all four questions before selecting the Next button.
Scenario:
Based on your knowledge of Cisco port channeling technologies, use the topology to answer
questions about the features of Cisco VSS and vPC.
Which three items represent features of Cisco Virtual Port Channels? (Choose three)

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A.
B.
C.
D.
E.
F.

Single control plane
Dual control planes
vPCappears as one switch to downstream switches
vPCappears as two switches to downstream switch
Etherchannel protocols include Static, LACP
channel protocols include Static, PAgP, PAgP+, LACP

Answer: BCE
QUESTION 85
Instructions:
- THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
- To access the multiple-choice questions, click on the numbered boxes
on the left of the top panel.
- There are two multiple-choice questions with this task. Be sure to
answer all four questions before selecting the Next button.
Scenario:
Based on the topology drawing, demonstrate your understanding of the 3-layer Data Center
design method.
Select two items that represent features of the Access layer in the Data Center 3-layer design.
(Choose two)
A.
B.
C.
D.
E.

High-speed Layer 3 switching
First-Hop Routing Protocols
Demarcation point between static and dynamic routing protocols
QoS Marking
802.1X

Answer: DE
QUESTION 86
Instructions:
- THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
- To access the multiple-choice questions, click on the numbered boxes
on the left of the top panel.
- There are two multiple-choice questions with this task. Be sure to
answer all four questions before selecting the Next button.
Scenario:
Based on the topology drawing, demonstrate your understanding of the 3-layer Data Center
design method.
Select two items that represent features of the Aggregation layer in the Data Center 3-layer
design. (Choose two)
A.
B.
C.
D.
E.

High-speed Layer 3 switching
First-Hop Routing Protocols
Demarcation point between static and dynamic routing protocols
QoS Marking
Q 802.1X

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VCE Dumps

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Answer: BC
QUESTION 87
What are two benefits that result from deploying a top-of-rack access layer design? (Choose two.)
A.
B.
C.
D.

increased fault tolerance
improved server density
simpler logical topology
improved power distribution

Answer: CD
QUESTION 88
Which two statements best describe the advantages concerning Layer 2 path selection when
deploying VDCs in the aggregation layer? (Choose two.)
A.
B.
C.
D.

MEC provides Layer 2 load balancing.
VDCs reduce the size of Layer 2 failure domains.
The VSL aids in Layer 2 load balancing during failures.
vPC provides Layer 2 load balancing and loop management without use of STP.

Answer: BD
QUESTION 89
Your customer plans to deploy FWSM and IDSM modules in the aggregation layer. Which design
should you avoid?
A.
B.
C.
D.
E.

Layer 3
InfiniBand
Layer 2 loop-free
Layer 2 hub spoke
Layer 2 looped triangle

Answer: A
QUESTION 90
Which hardware-based security feature mitigates DDoS attacks against the Cisco Nexus switch
itself?
A.
B.
C.
D.

ACLs
CoPP
IP Source Guard
IP sanity checks

Answer: B

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