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642-997 模擬問題集 & 300-085 試験関連赤本

 

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試験番号:642-997問題集
試験科目:Implementing Cisco Data Center Unified Fabric (DCUFI)
最近更新時間:2017-02-28
問題と解答:全125問 642-997 模擬問題集
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試験番号:300-085問題集
試験科目:Implementing Cisco Collaboration Application v1.0
最近更新時間:2017-02-28
問題と解答:全133問 300-085 試験関連赤本
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NO.1 On a Cisco Nexus7000 switches what is true regarding Cisco FabricPath requirements?
A. Ensure that you have installed the Enhanced Layer 3 license and that you have installed an M
Series module
B. Ensure that you have installed the Enhanced Layer 2 license and that you have installed an M
Series module
C. Ensure that you have installed the Enhanced Layer 2 license and that you have installed an F Series
module
D. Ensure that you have installed the Scalable Feature License license and that you have installed an F
Series module
Answer: C

642-997 攻略   
Explanation:
FabricPath switching has the following prerequisites:
You should have a working knowledge of Classical Ethernet Layer 2 functioning.
You must install the FabricPath feature set on the default and nondefault VDC before you
enable FabricPath on the switch. See Configuring Feature Set for FabricPath for
information on installing the FabricPath feature set.
You are logged onto the device.
Ensure that you have installed the Enhanced Layer 2 license.
set of system resources. You can use the switchto vdc command with a VDC number.
You are working on the F Series module.
Reference:
http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nxos/fabricpath/configuration/guid
e/fp_switching.html

NO.2 What is the Overlay Transport Virtualization site VLAN used for?
A. to detect devices at the site that are not capable of OTV
B. to allow the join interfaces at different sites to communicate
C. to allow multiple site AEDs to communicate with each other
D. to detect other OTV edge devices in the site
Answer: D
Explanation:
The edge device performs OTV functions: it receives the Layer 2 traffic for all VLANs that need to be
extended to remote locations and dynamically encapsulates the Ethernet frames into IP packets that
are then sent across the transport infrastructure. It is expected that at least two OTV edge devices
are deployed at each data center site to improve the resiliency.
Reference:
http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/DCI/whitepaper/DC
I3_OTV_Intro/DCI_1.html
Topic 6, Implementing Network Virtualization in Cisco Data Center Environment

NO.3 Which function does the graceful restart feature allow a Cisco Nexus 7000 Series router to
perform?
A. Initialize a standby supervisor transparently when one is present.
B. Perform a rapid route convergence.
C. Remain in the data forwarding path through a process restart.
D. Maintain a management connection throughout a router restart.
Answer: C

642-997 ダウンロード   642-997 知識   
Explanation:
Graceful Restart and Non Stop Routing both allow for the forwarding of data packets to continue
along known routes while the routing protocol information is being restored (in the case of Graceful
Restart) or refreshed (in the case of Non Stop Routing) following a processor switchover. When
Graceful Restart is used, peer networking devices are informed, via protocol extensions prior to the
event, of the SSO capable routers ability to perform graceful restart. The peer device must have the
ability to understand this messaging. When a switchover occurs, the peer will continue to forward to
the switching over router as instructed by the GR process for each particular protocol, even though in
most cases the peering relationship needs to be rebuilt. Essentially, the peer router will give the
switching over router a "grace" period to re-establish the neighbor relationship, while continuing to
forward to the routes from that peer.
Reference: http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-
software/highavailability/solution_overview_c22-487228.html

NO.4 Which two items are services that are provided by Cisco Fabric Services? (Choose two.)
A. DPVM configuration distribution
B. Kerberos proxy distribution
C. device alias distribution
D. RSA key pair distribution
E. VLAN database distribution
Answer: A,C

642-997 試験番号   
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 and
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nxos/san_switching/configuration/
guide/b_Cisco_Nexus_7000_NXOS_SAN_Switching_Configuration_Guide/Cisco_Nexus_7000_NXOS_
SAN_Switching_Configuration_Guide_chapter4.html#concept_2B83E16506C845B39BDF96F9CAFFAE
C3