もし君の予算がちょっと不自由で、おまけに質の良いCiscoの642-997 関連日本語版問題集試験トレーニング資料を購入したいなら、ShikenPASSのCiscoの642-997 関連日本語版問題集試験トレーニング資料を選択したほうが良いです。それは値段が安くて、正確性も高くて、わかりやすいです。いろいろな受験生に通用します。あなたはShikenPASSの学習教材を購入した後、私たちは一年間で無料更新サービスを提供することができます。
何事でもはじめが一番難しいです。642-997 関連日本語版問題集試験への復習に悩んでいますか？弊社の提供するソフトを買うのはあなたの必要の第一歩です。弊社の保証がある問題集を入手して、試験に合格するチャンスが大きくなります。疑問がありましたら、ShikenPASSで無料のデモをダウンロードしてやってみることができます。
試験番号：642-997試験科目：「Implementing Cisco Data Center Unified Fabric (DCUFI)」
一年間無料で問題集をアップデートするサービスを提供いたします
最近更新時間：2017-07-23
問題と解答：全152問 642-997 入門知識
NO.1 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. The Cisco NX-OS upgrade fails as a result of the mismatch between EPLDs and NX-OS versions.
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. Any new hardware or software feature that depends on the updated EPLD image is disabled until
upgraded.
Answer: D
642-997 科目
NO.2 Which statement about RBAC user roles on a Cisco Nexus switch is true?
A. The predefined roles can only be changed by the network administrator (superuser).
B. The default SAN administrator role restricts configuration to Fibre Channel interfaces.
C. On a Cisco Nexus 7000 Series Switch, roles are shared between VDCs.
D. If you belong to multiple roles, you can execute only the commands that are permitted by both
roles (logical AND).
E. Access to a command takes priority over being denied access to a command.
Answer: E
642-997 解説
Explanation:
If you belong to multiple roles, you can execute a combination of all the commands permitted by
these roles. Access to a command takes priority over being denied access to a command. For
example, suppose a user has RoleA, which denied access to the configuration commands. However,
the users also have RoleB, which has access to the configuration commands. In this case, the users
have access to the configuration commands.
Reference:
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/configuration/guid
e/cli/CLIConfigurationGuide/sec_rbac.html
Topic 3, Manage the Unified Fabric in a Cisco Data Center Architecture
NO.3 Which two items are services that are provided by Cisco Fabric Services? (Choose two.)
A. Kerberos proxy distribution
B. device alias distribution
C. RSA key pair distribution
D. VLAN database distribution
E. DPVM configuration distribution
Answer: B,E
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
NO.4 Which function does the graceful restart feature allow a Cisco Nexus 7000 Series router to
perform?
A. Maintain a management connection throughout a router restart.
B. Initialize a standby supervisor transparently when one is present.
C. Remain in the data forwarding path through a process restart.
D. Perform a rapid route convergence.
Answer: C
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
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