单选题As part of a Business Continuance project, a customer has established replication from 3 spokesto a DR hub with ProtecTIER 7610 appliances. Each of the 3 spokes is backing up 500 GB ofnominal data daily with an average deduplication ratio of 10:1. The 

题目
单选题
As part of a Business Continuance project, a customer has established replication from 3 spokesto a DR hub with ProtecTIER 7610 appliances. Each of the 3 spokes is backing up 500 GB ofnominal data daily with an average deduplication ratio of 10:1. The replication window is 12 hours.The data change rate is 15%. What is the approximate minimum required bandwidth for eachWAN connection?()
A

1.2MB/s

B

7.5MB/s

C

12MB/s

D

75MB/s

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相似问题和答案

第1题:

You are the administrator of a SQL Server 2000 computer. You want to set up snapshot replication on the server. The server will serve as Publisher and Distributor for a minimum of 40 Subscribers.

Currently, you want to publish 3GB of data, but the data is expected to grow over time. Subscribers will receive a new snapshot each month.

You want to minimize the workload on the Publisher/Distributor. Which two actions should you take to configure snapshot replication? (Each correct answer presents part of the solution. Choose two)

A.Store the snapshot in the default folder on the Publisher/Distributor.

B.Store the snapshot in an alternative folder on the Publisher/Distributor.

C.Store the snapshot in a shared folder on a file server.

D.Create pull subscriptions.

E.Create push subscriptions.


正确答案:CD
解析:Explanation:
C: In SQL Server 2000 it is possible to store snapshot files in a location other than or in addition to the default location. Alternate locations can be on another server, on a network share, or on removable media. Saving snapshot files in an alternate location can alleviate disk overhead on the Distributor.

However, Subscribers running earlier versions of SQL Server cannot use the alternate snapshot location. When specifying the snapshot location on a network share, it is recommended that that share folder be dedicated for snapshot storage and files. Subscribers that need to access the snapshot files will need Read permission to the snapshot location and appropriate folders. If the snapshot folder is not shared for the appropriate Subscribers, the replication agents cannot access the folder and the replication will fail.

D: With pull subscriptions the Subscriber requests data and updates that are made at the Publisher. Thus allows the user at the Subscriber to determine when the data changes are synchronized. With pull subscriptions the administration of the subscription takes place at the Subscriber.

A feature of pull subscriptions is that the Distribution Agent for snapshot and transactional publications and the Merge Agent for merge publications all run at the Subscriber. This can result in a reduction of the amount of processing overhead on the Distributor. However, if needed, the Distribution Agent or Merge Agent can be run at the Distributor to offload agent processing from the Subscriber.

Incorrect Answers:
A: The default location for snapshot replication files are specified in the Specify Snapshot Folder dialog box that appears in the Configure Publishing and Distribution Wizard and in the Create Publication Wizard. The default location is usually on the Distributor.

B: In SQL Server 2000 it is possible to store snapshot files in a location other than or in addition to the default location. Alternate locations can be on another server, on a network share, or on removable media. Saving snapshot files in an alternate location can alleviate disk overhead on the Distributor, particularly when it is located on another server, or a file server.

E: Push subscriptions are created at the Publisher. This places higher processor overhead at a Publisher using a local Distributor as the Distribution Agent for the snapshot publication runs at the Distributor.

第2题:

A manufacturing company is using ProtecTIER TS7610 appliances in a spoke and hubconfiguration. ProtecTIER’s TS7610 replication technology at the hub will perform the followingaction on the replicated data being received:()

  • A、compress the incoming data stream as it is received
  • B、store the alreadydeduplicated data stream unprocessed
  • C、compare the incoming data to previously replicated data and store only the byte-level changes
  • D、compare the incoming data to previously replicated data and store only the block-level changes

正确答案:C

第3题:

A variance envelope has been established on a project. The envelope goes from +-30% in R&a

A variance envelope has been established on a project. The envelope goes from +-30% in R&D to +-5% during manufacturing. The reason for the change in thickness of the envelope is because:

A . The management reserve has been used up.

B . The accuracy of the estimates in manufacturing are worse than the estimates in R & D.

C . Tighter controls are always needed as a project begins to wind down.

D . Of the personal desires of the project sponsor.

E . Of none of the above


正确答案:E

第4题:

A customer wants to install data deduplication and is currently backing up 100 MB of data per night and 300 MB of data per week. They require 100mb/sec of throughput to achieve this backup in their backup window. They have very limited rack space and can only offer 4U space in one of their existing racks. Which ProtecTIER product set best suits this customer?()

  • A、TS3500
  • B、TS7610
  • C、TS7650G
  • D、TS7650A

正确答案:C

第5题:

The customer would like to replicate their data from site A to site B. This distance is approximately325 meters between the sites. The customer has a DS5000 with 6 DS EXP5000 expansionshelves that hold approximately 40 TB of data. Which method of replication would be supported?()

  • A、HACMP-XD
  • B、SnapMirror
  • C、SyncMirror
  • D、Enhanced Remote Mirroring

正确答案:D

第6题:

A customer wants to install data deduplication and is currently backing up 100 MB of data per night and 300 MB of data per week. They require 100mb/sec of throughput to achieve this backup in their backup window. They have very limited rack space and can only offer 4U space in one of their existing racks.Which ProtecTIER product set best suits this customer?()

A.TS3500

B.TS7610

C.TS7650G

D.TS7650A


参考答案:C

第7题:

A customer has multiple applications on multiple open platforms in their current environment based on IBM System Storage DS8100. They plan to set up a business continuity solution that meets the objective of zero or little data loss for their business critical data. The customer has indicated that cost is a factor.  What should the storage specialist recommend()

  • A、a DS8700 in the Business Continuity site with a Metro Mirror license
  • B、a DS8700 with SAN Volume Controller in the Business Continuity site
  • C、a DS8700 in the Business Continuity site with Global Copy license
  • D、two new DS5300 servers (production and Business Continuity site) with a Global Copy license

正确答案:A

第8题:

A company has 100GB of data that needs to be automatically backed up daily, and needs to be stored for 20 years. Which of the following backup media is the BEST solution for archiving the server data?()

A. Tape

B. SAN

C. Flash

D. Optical


参考答案:A

第9题:

A company has 100GB of data that needs to be automatically backed up daily, and needs to be stored for 20 years.  Which of the following backup media is the BEST solution for archiving the server data?()

  • A、 Tape
  • B、 SAN
  • C、 Flash
  • D、 Optical

正确答案:A

第10题:

A customer is interested in obtaining an AIX solution from IBM.  They have two primary global requirements:   ? Availability (although HACMP is not required)   ? Low cost   Which of the following approaches should the pSeries technical specialist use to meet the customer’s requirements and ensure customer satisfaction?()

  • A、Design the least-cost solution to prevent the competition from winning the business.
  • B、Design a disaster recovery (DR) solution and convince the customer why DR is important to their business.
  • C、Use the HACMP specialist to design the solution and include HA SmoothStart services as part of the proposal.
  • D、Design a solution with redundant parts and explain to the customer the incremental cost associated with the redundancy.

正确答案:D

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