EMC Proven 專業認證計劃歡迎您加入不斷壯大的存儲專家的行列。 認證和學習路徑緊密結合﹐確保您接受的培訓將為妳在認證考試中拿到滿意的分數。 認證學習路徑是基於角色的﹐並確保您獲得適合您的工作角色的培訓。EMC Proven 專業計劃分為三個級別﹐區分認證專家的知識和技能﹐作為他們提高專業技能的方向。 每個級別的獲得都必須通過相應的監考考試。

認證編號: EMC Technology Foundations-Backup and Recovery

考題數目: 195 Q&A

最新更新: 2009-08-18

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EMC(電磁兼容性)的全稱是Electro Magnetic Compatibility， 其定義為“設備和系統在其電磁環境中能正常工作且不對環境中任何事物構成不能承受的電磁騷擾的能力” 該定義包含兩個方面的意思，首先，該設備應能在壹定的電磁環境下正常工作， 即該設備應具備壹定的電磁抗擾度(EMS)； 其次，該設備自身產生的電磁騷擾不能對其他電子產品產生過大的影響，即電磁騷擾(EMI)。

歐共體政府規定，從1996年1月1起，所有電氣電子產品必須通過EMC認證，加貼CE標誌後才能在歐共體市場上銷售。此舉在世界上引起廣泛影響，各國政府紛紛采取措施，對電氣電子產品的RMC性能實行強制性管理。國際上比較有影響的，例如歐盟89/336/EEC指令（即EMC指令）、美國聯邦法典 CFR 47/FCC Rules等都對電磁兼容認證提出了明確的要求。

從能量傳播的途徑劃分：圍繞這兩個方面的要求，從電磁能量傳出設備和傳入設備的途徑來進一步劃分，又有傳導干擾和輻射干擾兩個方面，傳導干擾是指干擾能量沿著電纜以電流的形式傳播，輻射干擾是指干擾能量以電磁波的形式傳播。因此，對設備的電磁兼容要求可以分為：傳導發射、輻射發射、傳導敏感度（抗擾度）、輻射敏感度（抗擾度）。

按照干擾特性劃分：干擾信號的波形有不同的種類，電磁場也有不同的種類，干擾註入的方式也有不同的種類，按照這些不同進一步劃分就得到了全部的要求項目。靜電放電試驗是一類特殊的試驗，它對設備的干擾途徑可以是傳導性的，也可以是輻射性的，取決於靜電放電發生的部位和試驗的方法。

Which NetWorker command can be used to find out the dates that a specific save set has been backed up?
A.mminfo
B.mmls
C.nsrinfo
D.nsrls
Answer: A

You are designing a backup schedule for a file system that changes frequently.Which NetWorker weekly backup schedule results in the fastest recovery?
A.Full incr incr incr incr incr incr
B.Full 1 2 3 4 5 6
C.Full 4 7 4 7 4 7
D.Full 8 8 8 8 8 8
Answer: D

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EMC 包含兩方面的要求所有電器電子動力商品都有EMC 現象的產生和考量，商品大至火車、飛機及發電機，小至電腦、燈座及電池玩具等等。而EMC 規範即對此類產品制定限制值，以防止產生太多電磁干擾(EMI)去影響其他產品的正常運作，同時也要求產品要具備防電磁干擾(EMS)的能力。產品必須不妨礙健康、不危及環境及消費者，才可以在市場上流通。在某個歐盟國家合法上市的產品，也可在其他會員國銷售。

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Disk Library and Backup to Disk Technologies(E22-315 Exam)屬於EMC Certification認證考試中的一門，如果需要取得EMC Certification證書，您可能還需要參加其他相關考試，詳情可訪問EMC Certification認證專題，在那裡，你將看到所有EMC Certification認證相關考試科目。

1. Which NetWorker command can be used to find out the dates that a specific save set has been backed up?
A.mminfo
B.mmls
C.nsrinfo
D.nsrls
Answer:A

2. You are designing a backup schedule for a file system that changes frequently.
Which NetWorker weekly backup schedule results in the fastest recovery?
A.Full incr incr incr incr incr incr
B.Full 1 2 3 4 5 6
C.Full 4 7 4 7 4 7
D.Full 8 8 8 8 8 8
Answer:D

3. Which NetWorker server daemon is responsible for starting other server and storage node daemons?
A.nsrd
B.nsrjobd
C.nsrmmdbd
D.nsrmmgd
Answer:A

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An existing Celerra Customer utilizes its Data Movers with its UNIX NFS environment.  It currently updates the password and group files nightly on the Data Movers. They would like to add a new group of Windows’ users to the Data Movers. Which architecture should be proposed?
A. Use the Usermapper for the Windows’ users
B. Use Usermapper with a VDM for the Windows’ users
C. Use the NTMigrate tools to create files and merge them into existing password and group files
D. Use Usermapper for the Windows users and groups, dump the database and merge the files nightly
Answer:C

A customer has an NS704G/DMX with production file systems mounted on server_2. The standy Data Mover is server_3, and server_4 and 5 are unused. There are currently 96 mirrored hyper volumes presented with BCVs. Currently 50% of Celerra volumes are in use. Which solution would best minimize the impact of backups on production data servers.
A. Configure NDMP 3 way backup with tape drives connected to an unused Data Mover
B. Take a TimeFinder/FS snap, mount it to an unused Data Mover, and backup the snap
C. Take a SnapSure checkpoint, mount it to an unused Data Mover, and backup the checkpoint
D. Use fs_copy incrementals to create a separate copy of the file system, mount the file system to an unused Data Mover, and back up the copy
Answer:B

Legato Cert E20-590(Backup and Recovery Specialist Exam)考題由我們的資深IT認證講師和Legato Cert產品專家精心打造，包括了當前最新的真實E20-590考題，全部附有正確答案。所有購買KillTest E20-590 題庫的客戶都將得到60天的免費升級服務，保證了客戶的一次通過率。KillTest IT認證題庫網助您一次通過Legato Cert E20-590考試。

Backup and Recovery Specialist Exam(E20-590 Exam)屬於Legato Cert認證考試中的一門，如果需要取得Legato Cert證書，您可能還需要參加其他相關考試，詳情可訪問Legato Cert認證專題，在那裡，你將看到所有Legato Cert認證相關考試科目。

1.Which NetWorker command can be used to find out the dates that a specific save set has been backed up?
A.mminfo
B.mmls
C.nsrinfo
D.nsrls
Answer: A

2.You are designing a backup schedule for a file system that changes frequently.
Which NetWorker weekly backup schedule results in the fastest recovery?
A.Full incr incr incr incr incr incr
B.Full 1 2 3 4 5 6
C.Full 4 7 4 7 4 7
D.Full 8 8 8 8 8 8
Answer: D

3.Which NetWorker server daemon is responsible for starting other server and storage node daemons?
A.nsrd
B.nsrjobd
C.nsrmmdbd
D.nsrmmgd
Answer: A

4.You want to make sure that only NetWorker Server S1 can back up client C1′s data. What do you need to do?
A.Add C1 to /nsr/res file on the NetWorker Server S1
B.Add C1 to /nsr/res/clients file on the NetWorker Server S1
C.Add S1 to /nsr/res/permissions on the client machine C1
D.Add S1 to /nsr/res/servers file on the client machine C1
Answer: D

Technology Foundations E20-593(Backup & Recovery Implementation Exam)考題由我們的資深IT認證講師和Technology Foundations產品專家精心打造，包括了當前最新的真實E20-593考題，全部附有正確答案。所有購買KillTest E20-593 題庫的客戶都將得到60天的免費升級服務，保證了客戶的一次通過率。KillTest IT認證題庫網助您一次通過Technology Foundations E20-593考試。