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单选题A customer wants to create backups at a remotely located datacenter.  Price and performance are of primary importance， so backup to disks at the remote location is selected instead of tape.  The remote location is 1 KM （0.6 Miles） away from the data ce

题目
单选题
A customer wants to create backups at a remotely located datacenter.  Price and performance are of primary importance， so backup to disks at the remote location is selected instead of tape.  The remote location is 1 KM （0.6 Miles） away from the data center.  NAS is the solution being considered.  Which of the following is the benefit of this solution？（）
A

NAS runs on 2Gb fibre， which will provide better performance.

B

NAS uses WAN infrastructure， which can easily span the 1 KM gap.

C

NAS requires fibre storage， which allows dual paths for redundancy.

D

NAS requires iSCSI routers and offers better growth environment.

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相似问题和答案

第1题：

Which of the following devices would be installed if an administrator wants to control a group of servers from a remote location？（）

  • A、 VLAN
  • B、 KVM
  • C、 IP KVM
  • D、 RAID

正确答案:C

第2题：

A user wants to be able to receive help from a coworker that is located outside the company’s local office. Which of the following MUST be enabled to allow the user to watch and interact with the coworker simultaneously?（）

  • A、Remote Desktop
  • B、Telnet
  • C、Computer Management
  • D、Remote Assistance

正确答案:D

第3题：

You perform a backup using the following BACKUP command:RMAN> BACKUP AS COMPRESSED BACKUPSET DATABASE;Which statement is true of this command?()

A. A different procedure is required to restore a database from compressed backups

B. The AS COMPRESSED clause of the BACKUP command provided by RMAN is used to create compressed backup sets and image copies.

C. Using this command to create backups minimizes the bandwidth consumed

D. Using this command to create backups improves the performance of the backup process


参考答案：C

第4题：

A customer requires off-site storage for 500 GB per night in backup tapes. The backup site is 560kilometers （350 miles） away. The customer does not require the backup site to run the applicationin the event of failure at the main site. What is the least expensive strategy for the data center toimplement？（）

  • A、make online image backups
  • B、install Global Mirror at the backup site
  • C、ship nightly backup tapes to the remote site
  • D、install Tivoli Storage Manager （TSM） and a tape drive at the backup site

正确答案:C

第5题：

A customer wants to create backups at a remotely located datacenter.  Price and performance are of primary importance， so backup to disks at the remote location is selected instead of tape.  The remote location is 1 KM （0.6 Miles） away from the data center.  NAS is the solution being considered.  Which of the following is the benefit of this solution？（）

  • A、NAS runs on 2Gb fibre， which will provide better performance.
  • B、NAS uses WAN infrastructure， which can easily span the 1 KM gap.
  • C、NAS requires fibre storage， which allows dual paths for redundancy.
  • D、NAS requires iSCSI routers and offers better growth environment.

正确答案:B

第6题：

You are evaluating the use of pass-through disks for the database servers. You need to recommend a backup solution for the database servers that meets the following requirements： - Minimizes costs. - Provides for the recovery of the databases if a hardware failure occurs. What should you include in the recommendation？（）

  • A、Create full backups of the Hyper-V host by using Windows Server Backup
  • B、Create snapshots of the VMs from Hyper-V Manager
  • C、Create full backups of the Hyper-V host by using Microsoft System Center Data Protection Manager
  • D、Create full backups of the VMs by using Windows Server Backup from within the VMs

正确答案:D

第7题：

A company wants a solution to consolidate their storage using the DS4000 series and implement a disaster recovery solution across two data centers linked by fibre to duplicate the production environment.The customer requires a solution with the least amount of system administration.  Which configuration would provide the best solution？（）

  • A、Implement one DS4400 at each location connected to the fibre link and use Remote Volume Mirror （RVM）.
  • B、Implement a DS4400 at each location using FlashCopy option and use host based replication to synchronize the sites.
  • C、Implement a switched fabric using redundant SAN switches with a DS4300 using RVM option at each location.
  • D、Implement a switched fabric using SAN switches connected via ISL with a DS4300 using RVM option at each location.

正确答案:D

第8题：

You are the administrator of a SQL Server 2000 computer. The server contains your company's order processing database. Two-hundred operators take orders by telephone 24 hours a day. Threehundred data entry personnel enter data from orders received by mail.

To ensure that order data will not be lost, your company's disaster recovery policy requires that backups be written to tape. Copies of these tapes must be stored at an off-site company location. Orders must be entered into the database before they can be filled. If the server fails, you must be able to recover the order data as quickly as possible.

You need to create a backup strategy that meets the company requirements and minimizes server workload. Which two actions should you take? (Each correct answer represents part of the solution. Choose two.)

A．Perform. a combination of full database and filegroup backups.

B．Perform. a combination of full database and file backups.

C．Perform. a combination of full database, differential, and transaction log backups.

D．Back up the data to a local tape drive.

E．Back up the data to a network share, and then use enterprise backup software to write the disk backups to tape.


正确答案：CE
解析：Explanation:
C: Most OLTP backup schemes include a full database, differential, and transaction log backups

E: In order to recover the data as quickly as possibly we backup the data to network share, and then backup that share to tape. This minimizes the impact of the backup process on the SQL Server computer.

Note 1: SQL Server 2000 provides three database recovery models. These are the Simple recovery model, the Full Recovery Model and the Bulk-Logged Recovery model. Simple Recovery requires the least administration. In the Simple Recovery model, data is recoverable only to the last full database or differential backup. Transaction log backups are not used, and consequently, minimal transaction log space is required.

This Recovery Model is not an appropriate choice for production systems where loss of recent changes is unacceptable. Full Recovery and Bulk-Logged Recovery models provide the greatest protection for data. These models rely on the transaction log to provide full recoverability and to prevent work loss in the broadest range of failure scenarios.

The Full Recovery model provides the most flexibility for recovering databases to an earlier point in time. The Bulk-Logged model provides higher performance and lower log space consumption for certain large-scale operations. It does this at the expense of some flexibility of pointin- time recovery. In this scenario we would want to implement the Full Recovery model as this Recovery model provides complete protection against media failure and provides the ability to recover the database to the point of failure or to a specific point in time.

To guarantee this degree of recoverability, all operations are fully logged. The backup strategy for full recovery consists of database backups, differential backups, which are optional, and transaction log backups. The differential backups are optional but have less of an effect on the system while they run, as they are smaller than full database backups.

This is because a differential backup creates a copy of all the pages in a database modified after the last database backup. A transaction log backup makes a copy only of the log file and backs up the changes made to the database after the last full or differential database backup. A log file backup cannot be used by itself to restore a database. A log file is used after a database restore to recover the database to the point of the original failure. The full database, differential, and transaction log backups can be written to a hard disk or other disk storage media such as a tape drive.

Disk backup devices can be defined on a local disk of a server or on a remote disk on a shared network resource. Tape backup devices are used in the same way as disk devices, with the exception that the tape device must be connected physically to the computer running an instance of SQL Server. SQL Server 2000 thus does not support backing up to remote tape devices.

Note 2, file backup, filegroup backup: SQL Server 2000 supports backing up or restoring individual files or filegroups within a database. This is a complex backup and the restore process that is usually reserved for large databases with high availability requirements. If the time available for backups is not long enough to support backing up the full database, subsets of the database can be backed up at different times. If a disk holding database files or filegroups fails, the site can restore just the lost files or filegroups. This allows for a quicker recovery because only the damaged files or filegroups are restored in the first step, not the entire database.

Incorrect Answers:
A: An OLTP server requires transaction log backups in order to be able to recover up to the point of failure.

B: An OLTP server requires transaction log backups in order to be able to recover up to the point of failure.

D: Backing up to a local tape device would minimize cost but it would compared to a backup to a network it would decrease performance of the server more, and it would take more time to recover.

第9题：

A customer with an IBM Power System running AIX is using an IBM System Storage DS8100 inLocation A, and an IBM System Storage DS5100 in Location B. The distance between Location Aand Location B is 25 kilometers. The customer wants a redundant copy of the data inLocation Bfor disaster recovery. Which of the following solutions will best satisfy this requirement?（）

  • A、install FlashCopy on the DS8100 
  • B、install SAN Volume Controllers with FlashCopy
  • C、install SAN Volume Controllers with Metro Mirror 
  • D、install Global Mirror on the DS8100 and Enhanced Remote Mirror on the DS5100 

正确答案:C

第10题：

A customer has one IBM System Storage DS8300 in their main data center with one IBM DS6800 at their Disaster Recovery （DR） site. They are using the Remote Mirror and Copy （RMC） feature between the sites. They utilize Tivoli Storage Manager for backups. They would like to replace a Microsoft Windows server at the main site with a server at the DR site with a minimal amount of downtime.  Which method will achieve their goals（）

  • A、locate the Tivoli Storage Manager data set for the server at the DR site， do a full backup， recover the data to the DS6800， and make the data availableto the server
  • B、create RMC relationships for all of the data on the server to the DS6800， shut down the server， and make the data available to the new server
  • C、shut down the server，create RMC relationships for all of the data on the server to the DS6800， and make the data available to the new server
  • D、recover the TSM backups to the DS6800 at the remote site， and make the data available to the new server

正确答案:B

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