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Cisco CCNP Data Center 642-996 Exam

Vendor：Cisco

Exam Code: 642-996

Exam Name: Designing Cisco Data Center Unified Fabric (DCUFD)



QUESTION 1

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

Correct Answer: C

QUESTION 2

What documents are not typically an output that is deliverable from the design phase?

A. high-level design

B. site requirements specification

C. troubleshooting procedures

D. migration plan

Correct Answer: C

QUESTION 3

What is the most common design requirement when creating a data center solution?

A. high availability with disaster recovery

B. multicore CPU servers

C. traffic inspection for inbound traffic

D. virtualization of network resources

Correct Answer: A

QUESTION 4

What is a typical output of the design planning phase that characterizes an existing data center?

A. a high-level conceptual architecture proposal

B. a gap analysis

C. a verification plan

D. reactive fault detection and correction

Correct Answer: B

QUESTION 5



Which two characteristics are associated with the core layer of a Data Center Unified Fabric

network? (Choose two.)

A. no packet manipulation

B. QoS - policing

C. voice, data, and wireless convergence

D. scalable routing protocols like OSPF

E. Layer 2 default gateway redundancy

F. QoS - classification and queuing

Correct Answer: AD

QUESTION 6

Which three characteristics are associated with the aggregation layer of a Data Center Unified

Fabric network? (Choose three.)


B. QoS - policing



E. provides default gateway redundancy


G. routing manipulation and filtering

H. aggregates end users

Correct Answer: BEG

QUESTION 7

Which three characteristics are associated with the access layer of a Data Center Unified Fabric

network? (Choose three.)


B. QoS - policing



E. provides default gateway redundancy


G. routing manipulation and filtering

H. aggregates end users

Correct Answer: CFH



QUESTION 8

Which protocols are Cisco recommended for connecting the main data center to a remote data

center?

A. LISP

B. OTV

C. FabricPath

D. vPC

Correct Answer: B

QUESTION 9

When migrating an existing data center network to a unified fabric network, which transitions

should you expect to see?

A. IOS to Nexus networking equipment

B. physical to virtual machines

C. Fibre Chanel to FCoE

D. iSCSI to NAS

Correct Answer: C

QUESTION 10

Which three protocols are effective in minimizing the use of STP in the data center design?

(Choose three.)

A. FCoE

B. vPC

C. vDC

D. FabricPath

E. 802.1ad

F. STP

Correct Answer: ABD

QUESTION 11

In a medium size Data Center, which three routing protocols would you use? (Choose Three.)



A. EIGRP

B. ISIS

C. OSPF

D. RIPv2

E. HSRP

Correct Answer: ABC

QUESTION 12

Layer 2 forwarding of multicast traffic with vPC is based on which modified protocol?

A. CGMP

B. PIM SS

C. Auto-RP

D. IGMP snooping

E. Destination-based trees

Correct Answer: D

QUESTION 13

Which protocol is required in order for FabricPath to support switches or hosts that dual-attach

through classical Ethernet?

A. VDC

B. vPC

C. LISP

D. OTV

E. VSS

F. TRILL

Correct Answer: B

QUESTION 14

In a geographically diverse data center environment, which high-availability feature allows data

centers to simultaneously serve the same content to all sites?

A. HSRP

B. VRRP

C. SLB

D. GSLB

E. FCoE



Correct Answer: D

QUESTION 15

Given the requirements, which Cisco Nexus product is Cisco recommended?

A rich feature set that makes it well suited to top-of-rack, middle-of-row, or end-of-row access-

layer applications.

Data center racks with standards-based 1 and 10 Gigabit Ethernet and FCoE features, and virtual

machine awareness features that allow IT departments to consolidate networks.

A combination of high port density, lossless Ethernet, wire-speed performance, and extremely

low latency that makes the switch family well suited to meet the growing demand for 10 Gigabit

Ethernet.

A. 1000v

B. 1010

C. 2000

D. 3000

E. 4000

F. 5500

Correct Answer: F

QUESTION 16

Which three control plane operations are used by vPC? (Choose three.)

A. ARP cache

B. MAC address learning

C. CGMP snooping

D. LACP

E. BPDUs

Correct Answer: ABE

QUESTION 17

In the data center architecture, which layer performs load balancing between data centers?

A. Core layer

B. Access layer



C. Aggregation layer

D. Collapse core

Correct Answer: A

QUESTION 18

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

Correct Answer: A

QUESTION 19

When designing a data center environment with ECMP and IP routing between the data center

network segments, which design would be the most suitable?

A. Layer 3 data center core

B. Layer 3 data center core with Layer 2 extension

C. Layer 2 data center core

D. Layer 2 data center core with Layer 3 extension

Correct Answer: A

QUESTION 20

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.



Correct Answer: C

QUESTION 21

When designing a collapsed core data center, which two technologies are used to virtualize the

core and aggregation layers? (Choose two.)

A. FCoE

B. LISP

C. HSRP

D. VDC

E. VRF

Correct Answer: DE

QUESTION 22

The classical aggregation layer design does not provide isolation on the control plane and on the

data plane. What is the solution to this problem?

A. STP

B. VDC

C. Cisco ISO ISSU

D. HSRP

Correct Answer: B

QUESTION 23

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

Correct Answer: A

QUESTION 24

Your customer is designing a new data center and would like the aggregation layer to be able to

route and have Layer 3 capability. What Cisco platform will meet this requirement?



A. Cisco Nexus 1000v

B. Cisco Nexus 5596 without Layer 3 daughter card

C. Cisco MDS 9506 chassis with supervisor engine

D. Cisco Nexus 7010 switch with Enterprise Services Package

Correct Answer: D

QUESTION 25

Which technology provides additional scalability and simplification of an Ethernet network,

providing more efficient forwarding and eliminating the need for the Spanning Tree Protocol?

A. OTV

B. vPC

C. PVST+

D. FabricPath

Correct Answer: D

QUESTION 26

Which technology provides the ability to use all links in a LAN topology by providing an active-

active path to the upstream switch?

A. STP

B. vPC

C. PVST+

D. RSTP

Correct Answer: B

QUESTION 27

Classical aggregation layer designs do not provide isolation of the control and data planes. What

provides a solution to this limitation?

A. STP

B. VDC

C. ISSU

D. HSRP

Correct Answer: B



QUESTION 28

What introduces unique implications into the overall Data Center aggregation layer design?

(Choose Three.)

A. High-speed switching fabric with a high forwarding rate

B. Over-subscription values

C. Service Modules

D. IP routing

E. WAN

F. Internet Edge

Correct Answer: ABC

QUESTION 29

What are the benefits of an Adapter FEX?

A. requires fewer adapters, cables, network ports, and network devices

B. provides the ability to VMware VMotion across data centers

C. reduces complexity in the data center

D. works with the IEEE 802.1RB standard

Correct Answer: A

QUESTION 30

Spanning Tree Protocol runs at which functional layer of the data center?

A. core layer

B. access layer

C. application layer

D. network layer

Correct Answer: B

QUESTION 31

Which of the following is true with respect to Cisco Adapter FEX?

A. Cisco Adapter FEX extends the Cisco FEX technology into a traditional rack server’s MoR

design.

B. An EoR design is not permitted with Cisco Adapter FEX.

C. Cisco Adapter FEX extends VDCs across multiple Cisco Nexus switches.

D. A ToR design is not permitted with Cisco Adapter FEX.



Correct Answer: A

QUESTION 32

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

Correct Answer: ABC

QUESTION 33

What is one required component to run FCoE?

A. iSCSI gateway

B. Fibre Channel adapter

C. HBA

D. Converged network adaptors

Correct Answer: D

QUESTION 34

Access layer switches are located as which type of design to provide network connectivity to

servers that are installed in rack?

A. ToR design

B. MoR design

C. EoR design

D. ILR

Correct Answer: A

QUESTION 35

Which two technologies can overcome the link blocking feature that STP implements to ensure a

loop-free topology? (Choose two.)

A. vPC



B. ISSU

C. MEC

D. NX-OS HA

E. GLBP

Correct Answer: AC

QUESTION 36

Your customer would like to run FCoE in the access layer. Which fabric extender should the

customer utilize in its design?

A. Cisco Nexus 2148T

B. Cisco Nexus 2224TP

C. Cisco Nexus 2248TP-F

D. Cisco Nexus 2232PP

Correct Answer: D

QUESTION 37

Which Cisco Nexus switch offers possibilities for implementation of the virtual switching layer in

VMware?

A. Cisco Nexus 5596 Switch

B. Cisco Nexus 7010 Switch

C. Cisco Nexus 1000v Switch

D. Cisco Nexus 2248 FEX

Correct Answer: C

QUESTION 38

Which item represents a method of increasing storage utilization efficiency?

A. thin provisioning

B. thick provisioning

C. transparent provisioning

D. hold-back provisioning

E. weighted provisioning

Correct Answer: A



QUESTION 39

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

A. NFS v4

B. HyperTransport

C. AoE

D. FCoE

E. CIFS

F. iSCSI

Correct Answer: F

QUESTION 40

What is required to allow for FCoE multihop prior to the ratification of FC-BB-6?

A. VN to VF encapsulation

B. FIP snooping

C. FCoE proxy

D. Fibre Channel bridging at FC-2

E. VE to VE tunneling

Correct Answer: B

QUESTION 41

What is required to be configured in VMware vCenter to allow a VM direct access to a Fibre

Channel LUN?

A. DirectPath I/O

B. VM-FEX

C. Adapter FEX

D. Raw Device Mapping

E. Solid State Drive

Correct Answer: D

QUESTION 42

After a recent acquisition, you have been asked to merge two SANs into one. Which SAN topology

is Cisco recommended?

A. Core-Edge



B. Edge-Core-Edge

C. Core Access

D. Collapsed Core

E. Collapsed Core-Edge

Correct Answer: B

QUESTION 43

Which two Cisco MDS 9500 line cards support SME? (Choose two.)

A. Cisco MDS 9000 Family Storage Services Module

B. Cisco MDS 9000 Family Multiprotocol Services Module

C. Cisco MDS 9000 Family 8-Gbps Advanced Fibre Channel Switching Module

D. Cisco MDS 9000 Family IP Storage Services Module

E. Cisco MDS 9000 Family Storage Processor Node

F. Cisco MDS 9000 Family Multiservices Module

Correct Answer: BF

QUESTION 44

Your customer has asked you to recommend a data center storage design that includes Multihop

FCoE for 400 database servers running on Cisco UCS C460M2 Rack Servers with Cisco UCS VIC

1225. Which of these server connectivity options is Cisco recommended for scalability and cost-

effectiveness?

A. Server > Cisco Nexus 5548UP > Cisco Nexus 7018 > CISCO MDS 9500

B. Server > Cisco Nexus 3548 > Cisco Nexus 7018 > CISCO MDS 9500

C. Server > Cisco Nexus 2232PP > Cisco Nexus 7018 > CISCO MDS 9500

D. Server > Cisco Nexus 4001i > Cisco Nexus 7018 > CISCO MDS 9500

Correct Answer: C

QUESTION 45

Which two features require configuration on a Cisco Nexus 7000 Series data center switch to

combat ARP cache poisoning attacks? (Choose two.)

A. Port Security

B. MAC ACL

C. TrustSec

D. DAI

E. DHCP Snooping

F. ARP Guard



Correct Answer: DE

QUESTION 46

A customer is interested in endpoint security at the access layer, which option is Cisco

recommended?

A. ACLs

B. DAI

C. TrustSec

D. stateful inspection

E. UDLD

Correct Answer: C

QUESTION 47

Which software runs on a device that is connected to a TrustSec-enabled port?

A. Initiator

B. Authenticator

C. Supplicant

D. Requester

E. Authentication Proxy

Correct Answer: C

QUESTION 48

Which two items represent attacks that are mitigated by CoPP? (Choose two.)

A. ARP cache poisoning

B. data plane DoS

C. ping flooding

D. Diffie Hellman

E. smurf attack

F. ping of death

Correct Answer: CE

QUESTION 49



Which command sequence represents a correct process to establish OSPF peer authentication

credentials?

A. N7010-C2(config)# key chain OSPF

N7010-C2(config-keychain)# key 0

N7010-C2(config-keychain-key)# key-string

B. N7010-C2(config)# key-chain 0

N7010-C2(config-key-chain)# key-name OSPF

N7010-C2(config-key-chain-key)# key-string

C. N7010-C2(config)# key ring OSPF

N7010-C2(config-keyring)# key 0

N7010-C2(config-keyring-key)# key-string

D. N7010-C2(config)# key-ring 0

N7010-C2(config-key-ring)# key-name OSPF

N7010-C2(config-key-ring-key)# key-string

Correct Answer: A

QUESTION 50

Assume that a Cisco Nexus 7018 is running with dual Supervisor 2 modules. Which two items are

available management access methods to reach the CLI? (Choose two.)

A. CMP

B. serial console

C. SSH

D. SNMP

E. CIM

F. XML API

Correct Answer: BC

QUESTION 51

What is one of the benefits within a Cisco Data Center Network Manager (DCNM)?

A. supports software upgrade and downgrade on the Nexus 1000

B. supports graphical management of FabricPath on the Nexus 7000

C. supports VDC management on the Nexus 5000

D. supports configuration backup and restore on the Nexus 1000



Correct Answer: B

QUESTION 52

What is one example that is true concerning network management for the data center?

A. The Network Analysis Module is best deployed in the core for highest visibility.

B. It utilizes flexible NetFlow for enhanced network anomaly and security detection.

C. NetFlow support is available on most IOS and Nexus products, excluding the Nexus 1000v.

D. NetFlow Data Export is best positioned on the Nexus 5500 at the access or aggregation

layers.

Correct Answer: B

QUESTION 53

Which tool, previously known as Cisco Fabric Manager, would you use in a data center to help

manage unified fabrics with SAN connectivity?

A. Cisco ANM

B. Flexible NetFlow

C. Cisco Prime LMS

D. Cisco Prime DCNM for LAN

E. Cisco Prime DCNM for SAN

F. Cisco VNMC

Correct Answer: E

QUESTION 54

Which tool provides centralized device and security policy management for Cisco VSG?

A. Cisco ANM

B. Flexible NetFlow

C. Cisco Prime LMS



F. Cisco VNMC

Correct Answer: F

QUESTION 55

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


Correct Answer: A

QUESTION 56

Which tool is used to manage NX-OS devices and features like vDC and vPC?

A. Cisco ANM

B. Flexible NetFlow

C. Cisco Prime LMS



F. Cisco VNMC

Correct Answer: D

QUESTION 57

Which two Nexus 7000 licenses are required to manage FabricPath from Cisco Data Center

Network Manager (DCNM)? (Choose two.)

A. Nexus 7000 Enhanced Layer 2 License

B. Nexus 7000 Transport Services License

C. Cisco DCNM for SAN Advanced Edition for Nexus 7000

D. Nexus 7000 LAN Enterprise License

E. Cisco DCNM for Nexus 7000

F. Nexus 7000 Scalable Feature License

Correct Answer: AE

QUESTION 58

What is one example of a business requirement that drives the design of a newly installed data

center?

A. power

B. cooling

C. resource utilization and provisioning

D. global availability



Correct Answer: D

QUESTION 59

Which technologies will be found in a data center that is designed for Cisco equipment?

A. NPV

B. NPIV

C. VSAN

D. FCoE

Correct Answer: C

QUESTION 60

From a data center design perspective, which of the following is true in regard to network

management tools like Cisco Data Center Network Manager (DCNM) and CiscoWorks LAN

Management Solution (LMS)?

A. Cisco DCNM is positioned to manage non-Nexus OS gear like the Catalyst 6500 Series,

Catalyst 6500 Series FWSM, and Cisco UCS.

B. Platform-specific, advanced data center features should be managed by Cisco DCNM and

provided to CiscoWorks LMS.

C. CiscoWorks LMS should be used to manage the LAN network, while Cisco DCNM will manage

the SAN network.

D. Cisco DCNM should be used to manage everything except the aggregation service layer.

Correct Answer: B

QUESTION 61

The architectural components of the infrastructure are the access layer, the aggregation layer,

and the core layer. What is the principal advantage of this model?

A. no advantages to this model

B. hierarchical structure and its modularity

C. cost of ownership

D. return on investment

Correct Answer: B

QUESTION 62



Your customer is designing a new data center and would like the aggregation layer to be able to

route and have Layer 3 capability. What Cisco platform will meet this requirement?

A. Cisco Nexus 1000v - no advantages to this model.

B. Cisco Nexus 5596 without Layer 3 daughter card.

C. Cisco MDS 9506 chassis with supervisor engine.

D. Cisco Nexus 7010 switch with Enterprise Services Package.

Correct Answer: D

QUESTION 63

Which technology provides additional scalability and simplification of an Ethernet network,

providing more efficient forwarding and eliminating the need for the STP?

A. OTV

B. vPC

C. PVST+

D. FabricPath

Correct Answer: D

QUESTION 64

Which technology provides the ability to use all links in a LAN topology by providing an active-

active path to the upstream switch?

A. STP

B. vPC

C. PVST+

D. RSTP

Correct Answer: B

QUESTION 65

Cisco VM-FEX technology extends Cisco Fabric Extender technology to the virtual machine that

eliminates which one of the following?

A. The dedicated interface on the parent switch is eliminated.

B. The software-based switch in the hypervisor is eliminated.

C. All virtual machine traffic is eliminated.



D. The need for a physical switch is eliminated.

Correct Answer: B

QUESTION 66

Which access layer technology will provide redundancy if there is a link failure on a server link?

A. VDC

B. MPLS

C. vPC

D. Cisco OTV

Correct Answer: C

QUESTION 67

What is a required component to run FCoE?

A. iSCSI gateway

B. Fibre Channel adapter

C. HBA

D. Cisco Network Assistant

Correct Answer: D

QUESTION 68

Which design will reduce cable count and maintain all cables within a rack?

A. Top-of-Rack design

B. Middle-of-Row design

C. End-of-Row design

D. End-of-Rack design

Correct Answer: A

QUESTION 69


A. Cisco Adapter FEX is only supported on vSwitch.

B. Cisco Adapter FEX enables the server adapter to be logically partitioned into multiple vNICs.

C. Cisco Adapter FEX does not provide architectural flexibility.



D. Cisco Adapter FEX increases the number of cables in the data center.

Correct Answer: B

QUESTION 70

What is the principal advantage of various layers in the architecture of data center infrastructure?

A. no advantages to this model

B. hierarchical structure and its modularity

C. cost of ownership

D. return on investment

Correct Answer: B

QUESTION 71

The classical access layer has its limitations due to high rate in which of the following?

A. oversubscription

B. jitter

C. cost

D. 10 Gigabit Ethernet links

Correct Answer: A

QUESTION 72

Cisco VM-FEX technology extends Cisco Fabric Extender technology to the virtual machine that

eliminates which of the following?

A. The dedicated interface on the parent switch is eliminated.

B. The software-based switch in the hypervisor is eliminated.

C. All virtual machine traffic is eliminated.

D. The need for a physical switch is eliminated.

Correct Answer: B

QUESTION 73

Which access layer technology will provide redundancy if there is a link failure on a server link?

A. VDC

B. MPLS

C. vPC



D. OTV

Correct Answer: C

QUESTION 74

Which physical data center design will reduce cabling and keep all of the cables within a rack?

A. ToR design

B. MoR design

C. EoR design

D. ILR design

Correct Answer: A

QUESTION 75


A. Cisco Adapter FEX extends the Cisco FEX technology into a traditional rack server’s MoR

design.

B. An EoR design is not permitted with Cisco Adapter FEX.

C. Cisco Adapter FEX extends VDCs across multiple Cisco Nexus switches.

D. A ToR design is not permitted with Cisco Adapter FEX.

Correct Answer: A

QUESTION 76


A. Cisco Adapter FEX is only supported on vSwitch.

B. Cisco Adapter FEX enables the server adapter to be logically partitioned into multiple vNICs.

C. Cisco Adapter FEX does not provide architectural flexibility.

D. Cisco Adapter FEX increases the number of cables in the data center.

Correct Answer: B



QUESTION 77

Which Cisco Nexus product operates inside the VMware ESX hypervisor, and supports the Cisco

VM-FEX server virtualization technology?

A. 1000v

B. 1010

C. 2000

D. 5500

E. 7000

Correct Answer: A

QUESTION 78

Refer to the exhibit. Customer would like to utilize Cisco Nexus7000 series switches as converged

Ethernet aggregation and SAN core switch in their new data center design. The switch can be

connected to a Cisco MDS 9500 Series switch in a three-tier edge-core-edge SAN design as shown

in the exhibit. Which technology makes this type of design possible?

A. FC forwarding

B. Multi-hop FCoE



C. iSCSI gateway to increase network bandwidth

D. vPC+

E. NAS gateway at the aggregation layer

Correct Answer: B

QUESTION 79



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.

Correct Answer: A

QUESTION 80



Which item represents a hardware requirement on the Cisco MDS 9500 Series Director to achieve

Fibre Channel connectivity with the Cisco Nexus 7000 Series data center switch? (Choose one.)

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