[Free] Download New Updated (August 2016) Cisco 642-997 Real Exam 71-80

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QUESTION 71

Which FCoE component is responsible for the encapsulation and de-encapsulation of Fibre Channel frames in Ethernet?

 

A.

distributed FCF

B.

FCoE node

C.

FCoE logical endpoint

D.

Fibre Channel forwarder

E.

FCoE forwarder

 

Correct Answer: C


Explanation:

The FCoE Logical Endpoint (FCoE_LEP) is responsible for the encapsulation and deencapsulation functions of the FCoE traffic. FCoE_LEP has the standard Fibre Channel layers, starting with FC-2 and continuing up the Fibre Channel Protocol stack.

 

Reference: https://www.safaribooksonline.com/library/view/ccna-data-center/9780133860429/ch11lev3sec5.html

 

 

 

QUESTION 72

Which item represents the process that allows FCoE multihop using T11 standard FC-BB- 5?

 

A.

distributed FCF

B.

FIP proxy

C.

N Port proxy

D.

FIP snooping

 

Correct Answer: D

Explanation:

FIP snooping is used in multi-hop FCoE environments. FIP snooping is a frame inspection method that can be used by FIP snooping capable DCB devices to monitor FIP frames and apply policies based on the information in those frames. This allows for:

 

clip_image002Enhanced FCoE security (Prevents FCoE MAC spoofing.)

clip_image002[1]Creates FC point-to-point links within the Ethernet LAN

clip_image002[2]Allows auto-configuration of ACLs based on name server information read in the FIP frames

 

Reference: http://www.definethecloud.net/fcoe-initialization-protocol-fip-deep-dive/

 

 

QUESTION 73

Which statement describes what happens if a new EPLD version is released with a new Cisco NX-OS version for a Cisco Nexus switch, but these EPLDs are not upgraded at the same time that NX-OS is upgraded?

 

A.

Any new hardware or software feature that depends on the updated EPLD image is disabled until upgraded.

B.

Modules that use an updated EPLD image remain offline until the EPLD is upgraded.

C.

The EPLD image version mismatch is detected by the supervisor, which automatically initiates an upgrade.

D.

The Cisco NX-OS upgrade fails as a result of the mismatch between EPLDs and NX-OS versions.

 

Correct Answer: A

 

 

QUESTION 74

Which two items are services that are provided by Cisco Fabric Services? (Choose two.)

 

A.

device alias distribution

B.

VLAN database distribution

C.

Kerberos proxy distribution

D.

RSA key pair distribution

E.

DPVM configuration distribution

 

Correct Answer: AE

Explanation:

The device alias application uses the Cisco Fabric Services (CFS) infrastructure to enable efficient database management and distribution. Device aliases use the coordinated distribution mode and the fabric-wide distribution scope. DPVM can use CFS to distribute the database to all switches in the fabric. This allows devices to move anywhere and keep the same VSAN membership. You should enable CFS distribution on all switches in the fabric. Using the CFS infrastructure, each DPVM server learns the DPVM database from each of its neighboring switches during the ISL bring-up process. If you change the database locally, the DPVM server notifies its neighboring switches, and that database is updated by all switches in the fabric.

 

Reference:

http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/configuration/guide/cli/CLIConfigurationGuide/ddas.html

http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/san_switching/configuration/guide/b_Cisco_Nexus_7000_NX-OS_SAN_Switching_Configuration_Guide/Cisco_Nexus_7000_NX-OS_SAN_Switching_Configuration_Guide_chapter4.html#concept_2B83E16506C845B39 BDF96F9CAFFAEC3

 

 

QUESTION 75

During the design of a new Cisco Data Center Network, a customer asked when VM-FEX would be used with Cisco Nexus 1000V Switch. Which scenario is most appropriate?

 

A.

when a host must utilize a vSwitch and a distributed vSwitch

B.

when using Non-UCS Servers to provide virtualization services with Nexus FEX modules

C.

They are mutually exclusive of each other.

D.

when a Cisco UCS C-Series server requires Cisco Nexus 1000V Switch to provide VM connectivity

 

Correct Answer: C

 

 

QUESTION 76

Which three options are capabilities of the Cisco Nexus 7000 Series Switch? (Choose three.)

 

A.

All interface and supervisor modules are accessible from the front.

B.

All interface and supervisor modules are accessible from the rear.

C.

single power supply only

D.

multiple power supply option for redundancy

E.


up to 180.7 Tbps forwarding capacity with Fabric-2 modules with 10-slot switches

F.

up to 18.7 Tbps forwarding capacity with Fabric-2 modules with 18-slot switches

 

Correct Answer: ADF

 

 

QUESTION 77

Which command is used to associate EID-to-RLOC for a LISP site?

 

A.

#feature lisp

B.

#ipv6 lisp itr

C.

#ip lisp database-mapping

D.

#ip lisp itr map-resolver

 

Correct Answer: C

 

 

 

 

 

QUESTION 78

Which example creates an Embedded Event Manager policy allowing the CLI command to execute, and triggers an SNMP notification when a user enters configuration mode?

 

A.

clip_image004

B.

clip_image006

C.

clip_image008

D.

clip_image010

 

Correct Answer: A

 

 

QUESTION 79

Which two statements about SAN zoning on Cisco Nexus switches are true? (Choose two.)

 

A.

Unlike configured zones, default zone information is not distributed to the other switches in the fabric.

B.

Traffic can either be permitted or denied among members of the default zone. This information is not distributed to all switches. It must be configured in each switch.

C.

The settings for default zone configurations cannot be changed.

D.

To activate a zone set, you must copy the running configuration to the startup configuration after the zone set is configured.

E.

Soft zoning restrictions will not prevent a source device from accessing a device outside its zone, if the source knows the Fibre Channel ID of the destination.

F.

Hard zoning is enforced by the hardware on each FLOGI sent by an N Port.

 

Correct Answer: BE

Explanation:

Each member of a fabric (in effect a device attached to an Nx port) can belong to any zone. If a member is not part of any active zone, it is considered to be part of the default zone. Therefore, if no zone set is active in the fabric, all devices are considered to be in the default zone. Even though a member can belong to multiple zones, a member that is part of the default zone cannot be part of any other zone. The switch determines whether a port is a member of the default zone when the attached port comes up. Unlike configured zones, default zone information is not distributed to the other switches in the fabric Traffic can either be permitted or denied among members of the default zone. This information is not distributed to all switches; it must be configured in each switch.

 

Reference: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/5_2/configuration/guides/fabric/DCNM-SAN/fm_fabric/zone.html

 

 

QUESTION 80

Which three options of encryption are supported in PIM hello messages? (Choose three.)

 

A.

cleartext

B.

DES-SHA1

C.

DES-CBC3-SHA

D.

Cisco Type 7

E.

RC4-SHA

F.

3DES

 

Correct Answer: ADF

 

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