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Designing Cisco Data Center Unified Fabric (DCUFD) Certification Exam

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November 21, 2024Last update

Cisco 642-996 Free Practice Questions

Q1. Which innovation in the Cisco NX-OS Software brings an entirely new Layer 2 data plane

by encapsulating the frames entering the device with a header that consists of a routable

source and destination address?

A.OTV

B.MPLS

C.Routing

D.RSTP

E.LISP

Answer: A

Q2. Your client is a large financial institution that is subject to security regulations. They have asked you for the highest level of traffic separation natively available on the Cisco Nexus 5500.   Which answer is correct?

A.VRF

B.VLAN

C.Subnet

D.Port Profile

Answer: B

Q3. Which Cisco Nexus product operates inside the VMware ESX hypervisor, and supports the Cisco VM-FEX server virtualization technology?

A.1010

B.2000

C.5500

D.7000

Answer: A

Q4. Which three characteristics are associated with the aggregation layer of a Data Center Unified Fabric network? (Choose three.)

A.no packet manipulation

B.QoS—policing

C.voice, data, and wireless convergence

D.scalable routing protocols like OSPF

E.provides default gateway redundancy

F.QoS—classification and queuing

G.routing manipulation and filtering

H.aggregates end users

Answer: BEG

Q5. Which two options are business requirements that drive the data center design? (Choose two.)

A.Increase virtual machine-to-host ratio.

B.Reduce power consumption.

C.Reduce latency within the network.

D.Migrate to FCoE.

E.Reduce operation expenditure.

F.Increase network throughput.

Answer: BE

Q6. Which tool is a part of the Cisco ACE product family and is a critical component for cloud

computing architectures?

A.Cisco ANM

B.Flexible NetFlow

C.Cisco Prime LMS

D.Cisco Prime DCNM for LAN

Answer: A

Q7. What is one example of typical business requirements that are driving the design of installed base data centers?

A.IT reorganization

B.virtualization

C.greater collaboration

D.physical space

Answer: C

Q8. What design will effect traffic flows in the Data Center Core layer?

A.The domain needed to extend a VLAN from one switch to another is determined at the core layer

B.With a 3 layer (Access, Aggregation, Core) design the Layer 2 domain must be configured across the Core for VLAN extension to occur

C.Extending Layer 2 through a core causes path blocking by STP and has the risk of uncontrollable broadcast issues related to extending Layer 2 domains, and therefore should be avoided

D.Server-to-server traffic typically travels between aggregation modules by way of the core, while backup and replication traffic remains within the aggregation module

Answer: C

Q9. Which three options are benefits of Small Computer System Interface? (Choose three.)

A.SCSI transport protocol that operates over TCP

B.Suitable for data center applications

C.Requires stateful gateway

D.Applicable for smaller environments (small and medium-sized businesses [SMBs])

E.Requires stateless gateway

F.SCSI transport protocol that operates over UDP

Answer: ACD

Q10. Which item uses TCP as a block I/O transport?

A.NFS v4

B.HyperTransport

C.AoE

D.FCoE

E.CIFS

F.iSCSI

Answer: F

Q11. A client's Cisco network support team has concerns that the security policy may not be correctly enforced within the vNetwork Distributed Switches that form the virtual network edge. What is the Cisco recommended solution to alleviate these concerns?

A.Direct all logs from vCenter to the network support teams TACACS+ server.

B.Deploy Cisco Nexus 1000v.

C.Create a vCenter admin account for the network support team.

D.Run VMware update manager to apply all security updates.

E.Replace the Distributed vSwitches with Standard vSwitches.

Answer: B

Q12. Your customer is designing a new data center with FCoE. Which three appropriate platforms are capable of meeting this requirement? (Choose three.)

A.Cisco Nexus 5596 switch with FCoE license

B.Cisco Nexus 7010 switch with FCoE license

C.Cisco Fabric Extender with FCoE support

D.Cisco 2948 switch with FCoE license

E.Cisco Catalyst 6509 switch with FCoE blade

Answer: ABC

Q13. The classical access layer has its limitations due to a high value in which of the following items?

A.oversubscription

B.jitter

C.cost

D.10 Gigabit Ethernet links

Answer: A

Q14. Which item represents a hardware requirement on the Cisco Nexus 7000 to terminate FCoE hosts? (Choose one.)

A.F1 Series 10Gb Ethernet module

B.M2 Series 10Gb Ethernet module

C.X1 Series 10Gb Unified Fabric module

D.C2 Series 10Gb Service module

Answer: A

Q15. What is the maximum number of vCPU and memory supported by a Cisco UCS B200 M3 blade server? (Choose two.)

A.16 vCPU

B.24 vCPU

C.384 GB memory

D.768 GB memory

Answer: BD

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