Rooslan would like to make sure that only members of the Administrators group can restore System State data from a particular Windows Server 2003 system that contains a certificate autho
Trang 1Objective 5.1 Perform Server System Recovery 18-9
Which of the following statements about recovering the three damaged servers using Automated System Recovery is true?
A Once the hardware has been repaired, these servers cannot be recovered Special files, located on an ASR disk, are unique to the server being recovered If that disk
is lost, the corresponding ASR set for that server is rendered useless
B Once the hardware has been repaired, these servers can be recovered You should perform an ASR backup on one of the functional servers creating a new disk You can then use this ASR disk to perform the ASR process on the damaged servers
C Once the hardware has been repaired, these servers can be recovered You should run the Backup Utility on one of the functional servers and use it to restore the Asr.sif and Asrpnp.sif from the functional server’s ASR backup set to floppy disk You can then use this ASR disk to perform the ASR process on the servers that had suffered damage
D Once the hardware has been repaired, these servers can be recovered You should run the Backup Utility on one of the functional servers and use it to restore the Asr.sif and Asrpnp.sif from each of the damaged server’s ASR backup sets to floppy disks You can then use each formerly damaged server’s corresponding ASR disk during in the ASR process on that server
8 Rooslan would like to make sure that only members of the Administrators group can restore System State data from a particular Windows Server 2003 system that contains
a certificate authority database Which of the following ways correctly describes how this can be done without removing the right of the Backup Operators group to restore other backup sets?
A When starting the backup, ensure that the Allow Only The Owner And The Administrator Access To The Backup Data option, in the Backup Job Information dialog box, is selected
B From the Restore And Manage Media tab, select the media properties to which the System State data is being written Change the permissions so that only the Administrators group has access to this media
C Restoration of backup sets can always be done by members of the Administrators group as well as members of the Backup Operators group Access cannot be restricted to one group or the other
D Edit the local Group Policy object and change the Backup Files And Directories
Trang 2Objective 5.1 Answers
1 Correct Answers: A
A Correct: An authoritative restore means that Active Directory objects that had
originally been deleted from the Active Directory database will not be overwritten the next time the restored server replicates with other domain controllers in the domain If an authoritative restore is not used, the deleted items will simply be removed the next time the other domain controllers in the domain replicate
B Incorrect: Any Active Directory objects restored using a non-authoritative restore
that have since been deleted from the directory will be removed the next time the server replicates with other domain controllers in the domain
C Incorrect: Any Active Directory objects restored using a primary restore that
have since been deleted from the directory will be removed the next time the server replicates with other domain controllers in the domain
D Incorrect: There is no such method as a diligent restore
2 Correct Answers: E
A Incorrect: Starting the domain controller in Last Known Good Configuration will
not allow the Active Directory database to be restored in a way that the OU containing the senior management team’s account will be recoverable
B Incorrect: Starting the domain controller in Safe mode will not allow the Active
Directory database to be restored in a way that the OU containing the senior management team’s account will be recoverable
C Incorrect: The Active Directory database cannot be recovered from the Recovery
Console
D Incorrect: Starting the domain controller normally will not allow the Active
Directory database to be restored in a way that the OU containing the senior management team’s account will be recoverable
E Correct: Directory Services Restore mode is a special mode that can be used to
recover the Active Directory database From Directory Services Restore mode the administrator can choose whether to do an authoritative or non-authoritative restore of the Active Directory database
Trang 3Objective 5.1 Perform Server System Recovery 18-11
3 Correct Answers: D and E
A Incorrect: Although the data exists, none of the Web site settings will exist
These are stored in the System State data that has to be restored
B Incorrect: Because the Web site files are unaffected, using the Backup Utility will
not make any difference It will simply overwrite the files that are already stored
on the second disk drive with exact duplicates
C Incorrect: Because these servers are not domain controllers but are members of
the domain they will not have an Active Directory database, nor will the option exist to start them into Directory Services Restore mode
D Correct: The IIS metabase, which contains all the IIS settings, is backed up when
the System State data is backed up Although it can be restored from the network location, this will also work if the backup is copied to the local hard disk drive
E Correct: The IIS metabase, which contains all the IIS settings, is backed up when
the System State data is backed up So long as you are logged on to the server on which you are doing the restoration, you can use backup data stored on remote servers
4 Correct Answers: B, D, and E
A Incorrect: The certificate database can be restored using the Backup Utility
because the certificate database is also part of the System State data
B Correct: Without IIS working correctly and configured to support the CA, the cer
tificate services Web pages will fail to load When a CA is installed, the appropriate modifications are made to the IIS metabase
C Incorrect: No password is required to restore System State data Backups and
restorations can, however, be restricted to the Administrators group
D Correct: This is to provide a level of security so that an intruder who may have
acquired the backup tapes cannot use the backup data to create his or her version
of the same CA If the database has been backed up using the System State, no password is required to access this data
E Correct: Automated System Recovery stores the System State data and the certif
icate database is part of that data
Trang 45 Correct Answers: B
A Incorrect: The ASR disk cannot be used as a boot disk It contains information
about the system but does not contain the necessary files to start Windows Server
2003
B Correct: This is the correct method of performing Automated System Recovery
on a Windows Server 2003 system The disk created in Automated System Recovery is not a boot disk, it merely stores important system configuration files, such as the disk layout, which are needed at the beginning of the recovery process Other files are either copied from the installation media or from the ASR backup set
C Incorrect: Starting in Safe mode will not initiate the ASR process
D Incorrect: The ASR process cannot be initiated from Directory Services Restore
mode
E Incorrect: The recovery console cannot be used to initiate the ASR process
6 Correct Answers: C
A Incorrect: Automated System Recovery does not restore data, although it will
restore the IIS metabase and fix the files that are causing the system instability
B Incorrect: Automated System Recovery does not restore data, although it will
restore the IIS metabase and fix the files that are causing system instability
C Correct: The Automated System Recovery will restore the files that are causing
instability as well as the IIS metabase Because the backups are incremental, each incremental backup as well as the original full backup must be restored to reproduce all the missing files
D Incorrect: This will not fix the instability that is caused by files other than those
backed up by the System State Also any files that were backed up in Tuesday’s incremental backup will not be restored
E Incorrect: Although this will restore the metabase and all the Web site data, it
will do nothing about other files that are causing system instability
Trang 5Objective 5.1 Perform Server System Recovery 18-13
7 Correct Answers: D
A Incorrect: This is not true A new ASR disk can be generated from the corre
sponding ASR set on the DAT tapes for that server
B Incorrect: Each server was said to have a unique configuration, which means
that the information written to one server’s ASR disk will be different from that written to another server's ASR disk
C Incorrect: Although this process is almost correct, restoring Aas.sif and Asr
pnp.sif from the functional server’s ASR backup set, rather than those files from the damaged server’s ASR backup set, will mean that the ASR disk contains the wrong information to restore the damaged servers correctly
D Correct: When an ASR backup set is written the files that are written to the ASR
disk are also written to the ASR backup set stored on the backup media This means that even if the ASR disk is lost, it can be recovered from information stored
in the ASR backup set
8 Correct Answers: A
A Correct: This is the only method of limiting which users or groups can perform
a restoration of a particular backup set
B Incorrect: This functionality does not exist from the Restore And Manage Media
tab
C Incorrect: Access can be restricted to the Administrators group by following the
procedure outlined in answer A
D Incorrect: This will not change the right of the Backup Operators group to
restore backup sets, but will prevent them from backing up files and folders
E Incorrect: This will stop the Backup Operators group from restoring all data, not
just the System State data
Trang 6Objective 5.2
Manage Backup Procedures
When the System State data is backed up, the following items are written to the backup set: System’s Registry, COM+ Class Registration database, boot files, and system files that are protected by the Windows File Protection service Depending on which services have been installed on the Windows Server 2003 system, System State data can also include the Certificate Services database, Active Directory and the Sysvol folder on a domain controller, cluster service information on a cluster server and the IIS metabase
If an administrator wants to verify that a backup job has completed successfully, the verification must be configured before the backup job is run Verification of backup jobs cannot be done separately after the job has completed Verification checks that the files and folders that have been written to the backup match the files and folders that were backed up Although checking the backup logs can alert an administrator that an error has occurred, it will not inform the administrator if the backed-up file does not match the original unless verification has been enabled
Certain types of media such as tape drives, hard disks, and some forms of removable storage can hold backup sets Backup sets can also be written to network file shares Some media, such as CD-ROM writers, are not supported by the Windows Server 2003 Backup Utility
Trang 7Objective 5.2 Manage Backup Procedures 18-15
Objective 5.2 Questions
1 Rooslan is the systems administrator of a Windows Server 2003 system running Internet Information Services This server is used to issue digital certificates to third parties on the Internet These certificates enable subscribers to access specially restricted portions
of the Web site that are not available to other users that visit the site Rooslan wants the IIS configuration and the certificate database backed up once a week Rooslan also wants to make sure that once a week every file and folder in the C:\Inetpub folder is backed up Finally Rooslan wants any changes made to files or folders in this directory after the weekly backup to be backed up each day, but in a method that uses the smallest amount of space on the backup media Which of the following backups should Rooslan perform? (Select all that apply.)
A A full backup each day of the week
B A full backup once a week
C A full backup, including System State data, once a week
D A differential backup each day of the week
E An incremental backup each day of the week
2 Which of the following methods will allow automatic verification that a backup has successfully completed?
A When starting the backup job, click Advanced and select Verify Data After Backup
B Use the Backup Wizard to run a verification job
C From the Restore And Manage Media tab of the Backup Utility, select the ties backup that has been performed and then select Verify
Proper-D There is no way to verify that a job has successfully completed in the Windows Server 2003 Backup Utility
3 To which of the following devices can backups be written by the Windows Server 2003 Backup Utility? (Select all that apply.)
A CD-ROM burner
B Network share
Trang 84 You have been administering several Windows Server 2003 file servers Your department has recently purchased a file server that has significantly more storage capacity than any other server on your LAN You are in the process of moving several file shares off the other server and onto this new server As each file server contains unique NTFS permissions, you are using the Windows Server 2003 Backup And Restore utility to ensure that the permissions that were on the original files and folders are retained once they are moved to their new server host The backup sets are now located on one of the volumes of the new server Their locations are as follows:
E:\Fileshbak1.bkf E:\Fileshbak2.bkf E:\Fileshbak3.bkf You run the Windows Server 2003 Backup Utility You want to have each of the backup sets imported into the Backup Utility’s Restore And Manage Media tab so that you can restore all the files and folders to new directories on the new server Which of the following methods will enable you to do this?
A Double-click each of the files This will import them into the Restore And Manage Media tab
B Drag each of the backup files from Windows Explorer to the Restore And Manage Media tab of the Backup Utility
C On the Tools menu, from the Backup Wizard select Catalog A Backup File Browse to each file separately and then catalog them
D Media not created by the Backup Utility cannot be imported for restoration
Trang 9Objective 5.2 Manage Backup Procedures 18-17
Objective 5.2 Answers
1 Correct Answers: C and E
A Incorrect: This will not back up the IIS configuration or certificate database It
will also not use the smallest amount of space on the backup media
B Incorrect: This will not back up the IIS configuration or certificate database
C Correct: This will back up the IIS configuration and the certificate database as
well as perform the full backup required
D Incorrect: Differential backups use more space on the backup media than incre
mental backups do Differential backups store all information created or modified since the last full backup
E Correct: Incremental backups use the least amount of space They back up only
data that has been created or modified since the last incremental backup
C Incorrect: This option does not exist
D Incorrect: This is incorrect A job must be verified immediately after it has
completed by setting the Verify Data After Backup.option when running the backup job
3 Correct Answers: B and C
A Incorrect: CD-ROM burners are not recognized as devices to which backups can
be written by the Windows Server 2003 Backup Utility
B Correct: Backups can be written from the Windows Server 2003 Backup Utility to
network shares
C Correct: Tape drives are the traditional method of backing up data and as such
are recognized by the Windows Server 2003 Backup Utility
D Incorrect: CD-ROM and DVD-ROM burners are not recognized as devices to
Trang 104 Correct Answers: C
A Incorrect: Although this will open the Backup Utility, it will not automatically set
up the selected file for import or restoration
B Incorrect: This method will not work
C Correct: This is one method by which the contents of these files can be added to
the Restore And Manage Media tab
D Incorrect: This is not true The Catalog A Backup File command on the Tools
menu allows backup files to be imported to the utility
Trang 11Objective 5.3 Recover from Server Hardware Failure 18-19
of a hard disk drive
Mirrored volumes (RAID-1) are generally used for the boot/system volume of a Windows Server 2003 system This is in part because the boot/system volume cannot be configured to function within a software RAID-5 array by the Windows Server 2003 disk management utilities The server can be booted from either disk in a mirrored set and, once
a mirrored set is created, a new option is added to the operating system selection menu (boot.ini) at startup
RAID-5 volumes are generally used to store data and program files Requiring three or more disks, though never more than 32, a RAID-5 volume can continue to function after the loss of one of its component disk drives Performance will be reduced but the volume will still function At a later time, the administrator will be able to power off the server, install a replacement disk, and then regenerate the volume Once the volume is regenerated, original performance will be restored
Trang 12Objective 5.3 Questions
1 Rooslan is the systems administrator of a Windows Server 2003 system that has four Small Computer System Interface (SCSI) hard disk drives The server contains two volumes, each of which takes up an entire SCSI hard disk drive The first disk drive hosts the first volume, which contains the operating system and the program files The second disk drive hosts the second volume, which contains program data and several file shares Disk Mirroring has been configured within the Disk Management console The first volume is mirrored on the third disk and the second volume is mirrored on the fourth disk
The fourth disk fails Which of the following must Rooslan do to restore the fault tolerance on this server? (Select all that apply.)
A Rooslan must remove the mirror between the first and third disks before installing
to restore fault tolerance to the Windows Server 2003 system?
A Use the Windows Server 2003 installation media to launch a Recovery Console From the Recovery Console, remove the mirror Shut down the server and install the replacement disk Use the Windows Server 2003 installation media to launch the Recovery Console Use the Recovery Console to create a new mirror set
B Remove the failed hard disk drive and boot off the mirrored volume Run the Disk Management console and remove the mirror to the failed hard disk Shut down the system and install the replacement disk Boot the server from the mirrored volume Run the Disk Management console Initialize the newly installed disk and convert it to dynamic Create a mirrored pair between the original mirror and this new disk
Trang 13Objective 5.3 Recover from Server Hardware Failure 18-21
C Remove the failed disk Install the replacement disk Boot the server from the Windows Server 2003 installation media and select repair installation
D Remove the failed disk Install the replacement disk Start the server into Last Known Good Configuration Run the System Repair Wizard
3 Rooslan is the systems administrator of a Windows Server 2003 system that runs SQL Server 2000 The server has six SCSI hard disk drives attached The first two form a mirrored pair and host the volume that contains the operating system and the program files The other four SCSI disks are configured in RAID-5 and host a single volume that contains all the database data Currently, 40 percent of the volume is used One of the four disks in the RAID-5 volume fails Which of the following statements about this situation is true?
A The server will continue operating and no data has been lost
B The server will halt The server will be operational once the failed disk has been replaced
C Once the volume is reactivated the server will continue operating New data not be written to the RAID-5 volume, but current data can be read and backed up
can-D All data will be lost A striped set, rather than RAID-5, is required for fault tolerance
4 There are nine SCSI hard disk drives installed on a Windows Server 2003 system Disk 1 hosts the volume that contains the operating system Disks 2, 5, and 8 comprise a single RAID-5 volume Disks 3, 4, and 6 host a single RAID-5 volume Disk 1 is mirrored
by Disk 7 Disk 9 hosts a single volume
Which of the disks can fail at the same time but leave the server fully operational after
a restart?
A Disks 1, 2, and 5 fail at the same time
B Disks 6, 7, and 8 fail at the same time
C Disks 1, 7, and 8 fail at the same time
D Disks 1, 6, and 9 fail at the same time
E Disks 1, 2, and 3 fail at the same time
Trang 14Objective 5.3 Answers
1 Correct Answers: B and C
A Incorrect: Neither the first nor the third disk has failed, so breaking the mirror
will do nothing to restore fault tolerance, merely reduce the current level of fault tolerance
B Correct: Until this mirror is removed a new mirror cannot be created
C Correct: Doing this will restore fault tolerance by recreating the mirror set with a
new disk
D Incorrect: Breaking the mirror between the first and the third disks will not
improve fault tolerance It is the pairing of the second and fourth disks that is problematic
2 Correct Answers: B
A Incorrect: The Recovery Console cannot be used to remove or create mirrored
sets
B Correct: This is one way to restore the fault tolerance of this server Once a mir
rored volume is created the server can use the mirrored volume as it would the original
C Incorrect: This process will not restore the fault tolerance of the original setup
D Incorrect: This process will not restore the fault tolerance of the original setup
3 Correct Answers: A
A Correct: The server will keep operating and no data will be lost The read and
write performance will be worse than normal as parity information will need to be converted into readable data At some stage in the future the failed disk also must
be replaced
B Incorrect: The volume can be reactivated from within the Disk Management
console, hence this answer is incorrect
C Incorrect: Because only 40 percent of the volume was currently being used, data
can be written and read from the disk It will be done with degraded performance, however
D Incorrect: Striped sets are not fault tolerant, hence this answer is incorrect The
data will not be lost if one of the members of the RAID-5 volume fails
Trang 15Objective 5.3 Recover from Server Hardware Failure 18-23
4 Correct Answers: B and E
A Incorrect: Disk one is mirrored by Disk 7, so it is fault-tolerant However, Disk 2
is a member of the same RAID-5 volume as Disk 5 RAID-5 cannot recover from two disks failing at the same time
B Correct: Disk 6 is not in a RAID-5 set with Disk 7 or 8 Disk 7 is paired with Disk
1 and Disk 8 is not in a RAID-5 set with Disk 6 or Disk 7
C Incorrect: Disks 1 and 7 form a mirrored set of the system volume
D Incorrect: Disk 9 has no fault tolerance
E Correct: Disk 1 is paired with Disk 7, so it can fail Disk 2 is not in a RAID-5 vol
ume with Disk 3, so it can fail, and Disk 3 is not in a RAID-5 volume with Disk 2,
so it also can fail and the server will remain operational after a restart
Trang 16Objective 5.4
Restore Backup Data
The aim of any restoration procedure is to ensure that all the data that has been backed
up is restored correctly Unless a full backup is taken every day onto separate backup media, understanding which tapes to use in a backup and in what order to restore them becomes a complex task
Pivotal to understanding how to restore files is understanding how the different backup methods work A systems administrator should understand why all the tapes including the last full backup must be restored when incremental backups have been taken Similarly a system administrator must understand why only the last full and the most recent differential backup need to be restored when the differential method is used
Although systems administrators back up data fearing that the backups will be required for a complete server rebuild, the most likely time that restorations will occur will be when a user has lost or deleted a file Being able to quickly identify the backup set that contains the missing file saves an administrator time An administrator does not wish to restore a week’s worth of backup sets trying to locate a single file when going through one backup set would suffice
Trang 17Objective 5.4 Restore Backup Data 18-25
Objective 5.4 Questions
1 You are the systems administrator responsible for several Windows Server 2003 systems at a medium-sized industrial plant One of the servers is a file and print server The server comprises three disks, one of which hosts the volume containing the operating system The other two are configured as a striped set and host several file shares Backups are written to a DAT drive on the server and backup tapes are stored off site The backed-up data includes every file and folder on the striped volume hosting the file shares as well as the System State data The rest of the operating system volume is not backed up, though an Automated System Recovery set is generated once a month The backup regime is as follows:
2:00 A.M Sunday Full Backup and System State Data
2:00 A.M Monday through Saturday Incremental Backup and System State Data
On Thursday at 2:00 P.M., the second disk in the striped set suffers a failure You have
an identical replacement on site and are able to retrieve the last seven days of backup tapes, including the ASR set and disk, from the off-site location Which of the following
is required to restore the lost data?
A Remove the failed disk and replace it with the duplicate Use the Disk Management console to regenerate the striped volume
B Remove the failed disk and replace it with the duplicate Restart the server from the installation CD-ROM and insert the ASR disk to perform the ASR process
C Remove the failed disk and replace it with the duplicate Restore the System State data Use the Disk Management console to regenerate the striped volume
D Remove the failed disk and replace it with the duplicate Use the Disk Management console to recreate the striped volume across the original disk and the replacement Use the Backup Utility to restore the data to the striped volume from the backup sets made on Sunday and Thursday
E Remove the failed disk and replace it with the duplicate Use the Disk Management console to recreate the striped volume across the original disk and the replacement Use the Backup Utility to restore the data to the striped volume from the backup sets made on Sunday, Monday, Tuesday, Wednesday, and Thursday
Trang 182 You are the systems administrator responsible for managing four Windows Server 2003 file servers in a university’s department You receive a telephone call from the secretary
of the department head telling you that she has accidentally deleted an important file from the file server It was a research paper that the department head is presenting to
a symposium tomorrow and it is urgent that the file be recovered A differential backup
is performed every evening except for Friday at 10:00 P.M., when a full backup is formed Each day’s backup is written to a separate tape, which is labeled with the day the backup is performed Today is Thursday The secretary believes that she deleted the file yesterday morning The file was last modified Monday and was not accessed over the weekend Assuming that she is correct, which of the following backup tapes will contain a copy of the file? (Select all that apply.)
on in the last week The first was last modified Monday afternoon and the second has not been edited except for a minor change on Wednesday Which of the following statements about the backup tapes is correct? (Select all that apply.)
A The three files that have not been modified in the last week will be present only
on the Monday backup tape
B That all five files will be present on the Thursday backup tape
C That two of the five deleted spreadsheet files will be present on the Thursday backup tape
D Two of the five deleted spreadsheet files will be present on the Wednesday backup tape
E None of the five deleted spreadsheet files will be present on the Tuesday
Trang 19Objective 5.4 Restore Backup Data 18-27
4 Rooslan is responsible for the backups of a Windows Server 2003 system that hosts several Web sites These Web sites are full of content that is updated on a daily basis by individual site administrators All the Web site files are located on a separate disk and volume from the one that hosts the operating system and the program files A full backup, including System State data, is taken of the Web site to a network location every Tuesday at 3:00 A.M This backup takes approximately two hours to complete A differential backup is taken of the Web site to a network location every other morning
at 3:30 A.M and this takes approximately one-and-a-half hours to complete On Saturday at 4:30 A.M., the disk that hosts the volume storing the Web site data fails completely You receive a message on your pager and are in the server room by 5:30 A.M You have a replacement hard disk that has identical properties to the one that has failed You replace the failed disk and are about to begin the restoration process Which of the following backup sets will you use to restore the most complete version possible of the Web site data? (Select all that apply.)
A
B
C
D Friday’s backup set
E Saturday’s backup set
Trang 205 Rooslan is responsible for backing up the departmental intranet server This server runs IIS on Windows Server 2003 The server has a single physical disk that contains a single volume formatted with the NTFS file system A share has been created on the Wwwroot folder Only administrators and the member of staff responsible for maintaining the intranet server have access to this share The member of staff that maintains the intranet server pages has this share mapped as a separate drive by a login script Rooslan performs an ASR backup of the server on the first of each month Every Monday at 7 A.M., he performs a full backup of the Wwwroot folder and all its subfolders
as well as backing up the System State data On Tuesday, Wednesday, Thursday, and Friday at 8:00 A.M., he performs an incremental backup on the Wwwroot folder and all its subfolders No backups are performed over the weekend on this server All backups are written to DAT and are labeled with the day that the backup was taken Rooslan receives a visit at his cubicle after lunch on Thursday The member of staff responsible for maintaining the intranet server was infected this morning with a virus It has wiped out all the documents on her hard drive as well as all the files and folders in the mapped Wwwroot folder Rooslan goes down to the server room and locates the backup tapes from the last seven days Which of the backup tapes will he need to use
to create the most complete restoration of the Web site files? (Select all that apply.)
of the System State data, occurs every Sunday at 5 A.M Incremental backups occur on Monday, Wednesday, and Friday at 6 A.M Each tape is labeled with the day the backup it stores is taken One of the disks hosting the spanned volume fails early Friday afternoon Oksana replaces the disk and recreates the spanned volume Which of the following correctly describes the order in which Oksana should restore the backup tapes to the spanned volume?
A Sunday’s tape, followed by Friday’s tape
B Friday’s tape, followed by Sunday’s tape
Trang 21Objective 5.4 Restore Backup Data 18-29
C Sunday’s tape, followed by Monday’s, Wednesday’s, and Friday’s tapes
D Friday’s tape, followed by Wednesday’s, Monday’s, and finally Sunday’s tapes
E Sunday’s tape, followed by Monday’s and Friday’s tapes
7 Rooslan is the administrator responsible for managing a Windows Server 2003 system that is used to analyze experimental scientific data The server has four SCSI hard disk drives One hosts a single volume that holds the operating system and the data analysis program The other three SCSI hard disk drives are configured in a single volume stripe set The stripe set volume stores both the raw and processed data A full backup is taken of the stripe set volume once a day at 6:00 A.M Differential backups of the stripe set volume are taken every four hours, the first at 10:00 A.M., the second at 2:00 P.M., the third at 6:00 P.M., and the final at 10:00 P.M Five DATs are used for backup each day, one for each backup taken They are labeled with the day and time of the backup
At 7:08 P.M on Tuesday, one of the SCSI hard disk drives that comprise the stripe set volume fails Rooslan has replaced it by 7:30 P.M and has recreated a new stripe set volume He has access to the last 10 DATs used to take backups on this server Which
of the following represents the way that Rooslan should restore the data to the stripe set volume in the minimum amount of time?
A The Tuesday 6:00 A.M full backup, followed by the Tuesday 6:00 P.M differential backup
B Tuesday 6:00 P.M., followed by Tuesday 6:00 A.M
C Tuesday 6:00 P.M., followed by Tuesday 2:00 P.M., Tuesday 10:00 A.M., and finally Tuesday 6:00 A.M
D Tuesday 6:00 A.M., followed by Tuesday 10:00 A.M., then Tuesday 2:00 P.M., and finally Tuesday 6:00 P.M
E Tuesday 6:00 P.M only
Trang 228 Mick is the systems administrator of a Windows Server 2003 system that is used as a departmental file share at a local airport The server has two SCSI hard disks Each disk hosts a single volume The first volume hosts the operating system and program files The second volume hosts the file shares The server is backed up every day to an individual DAT, which is labeled with the day that the backup is taken The backup regime
is as follows:
Saturday 4:00 A.M full backup Sunday 4:00 A.M differential backup Monday 5:30 A.M incremental backup Tuesday 4:00 A.M differential backup Wednesday 5:30 A.M incremental backup Thursday 4:00 A.M differential backup Friday 5:40 A.M incremental backup The disk hosting the volume that contains the file shares fails at 1:34 P.M on Thursday Mick is able to replace the disk and recreate the volume within 30 minutes He has full access to the last 10 days of backup tapes Which of the following represents the order
of restoration that Mick should use to achieve the most complete restoration of the file shares?
E Saturday’s tape, followed by Monday’s tape, with Wednesday’s tape being restored
to the volume last
F Saturday’s tape, followed by Monday’s tape, then Wednesday’s tape, with Thursday’s tape being restored to the volume last
Trang 23Objective 5.4 Restore Backup Data 18-31
9 Laherty is the systems administrator of a Windows Server 2003 system running IIS hosting several Web sites The server has four SCSI hard disk drives installed The first SCSI hard disk drive hosts a single volume that contains the operating system and program files The other three SCSI hard disk drives are configured in RAID-5 and contain a single volume that hosts all the Web site data The RAID-5 volume is backed up every 24 hours to an individual DAT The backup schedule is as follows:
Friday 6:00 A.M full backup, including System State data
Saturday 6:00 A.M differential backup Sunday 6:00 A.M incremental backup Monday 6:00 A.M differential backup Tuesday 6:00 A.M incremental backup Wednesday 6:00 A.M differential backup Thursday 6:00 A.M incremental backup The following files are written or modified at the corresponding times:
FileA.htm Created Friday 1 P.M
FileB.htm Modified Saturday 2 P.M
FileC.htm Modified Sunday 10 A.M
FileD.htm Created Monday 9 A.M
FileE.htm Modified Tuesday 11 A.M
FileF.htm Modified Wednesday 4 P.M
On Thursday at 5:12 P.M., a virus on the network infects the Windows Server 2003 system and deletes all the content hosted on the RAID-5 volume Laherty disinfects the server and begins the restoration process He starts by restoring all files on the Friday backup, and then restores all files on the Saturday backup, followed by the Monday backup, Wednesday backup, and finally the Thursday backup When Laherty has finished this procedure, which restored files will be missing or not be of the latest version?
A FileA.htm
Trang 24Objective 5.4 Answers
1 Correct Answers: E
A Incorrect: Striped volumes are not striped volumes with parity, hence when one
of the set fails, all data on the volume is lost and must be restored from backup tape
B Incorrect: The ASR process recovers the system files; it does not recover data
Data must be backed up independently of the ASR process
C Incorrect: Striped volumes are not striped volumes with parity, hence when one
of the set fails, all data on the volume is lost and must be restored from backup tape The System State data will not be helpful in this case because all that was lost was file-share data
D Incorrect: This process would be correct if the Monday through Saturday
back-ups were differential, rather than incremental, backback-ups Any files altered after the
2 A.M Sunday backup finishes and after the 2 A.M Wednesday backup finishes would not be recovered
E Correct: This is the correct process Recreating the striped volume will mean that
it has no data on it Restoring the data from the backup tapes, being sure to use both the full backup and all the incremental backups will mean that as much information as possible will be salvaged
2 Correct Answers: A, D, and E
A Correct: Friday’s tape contains a full backup It will contain a copy of the file as
it existed last Friday at 10:00 P.M
B Incorrect: Because the file was not accessed on the weekend, it will not have
changed No change means that it will not be picked up by a differential backup
C Incorrect: Because the file was not accessed on the weekend, it will not have
changed No change means that it will not be picked up by a differential backup
D Correct: The file was changed on Monday, hence it will be written to Monday’s
tape Because this is a differential backup, the archive bit will not be set
E Correct: Although the file was changed on Monday, the archive bit will not have
been set by a differential backup This means that Tuesday’s tape will also contain
a copy of the file
F Incorrect: The file was deleted on Wednesday, so it will not be present on the
Wednesday backup tape
Trang 25Objective 5.4 Restore Backup Data 18-33
3 Correct Answers: A and C
A Correct: All five files will be present on the Monday backup tape; however, two
of those files will not be in their most recent form as they have been edited later
in the week
B Incorrect: Only the two files that have been modified this week will be present
on the Thursday backup tape
C Correct: Because the Thursday backup tape is generated at 2 A.M., these files
will be present They were deleted on Thursday evening The minor change on Wednesday afternoon means that the first time that the second file will be backed
up after the change is on Thursday morning
D Incorrect: The spreadsheet that was only modified on Wednesday afternoon will
not be present on the Wednesday backup tape because that differential backup was taken at 2 A.M Wednesday
E Incorrect: The spreadsheet that was modified Monday afternoon will be present
on the Tuesday backup tape
4 Correct Answers: A and D
A Correct: This backup set contains the System State data, which in turn contains
the IIS metabase, as well as all the files on the Web sites as of Tuesday morning
B Incorrect: Wednesday’s backup set is not needed because all the files that it con
tains will be included in Friday’s backup set This backup set would be required, however, if the backup type were incremental, not differential
C Incorrect: Thursday’s backup set is not needed because all the files that it con
tains will be included in Friday’s backup set This backup set would be required, however, if the backup type were incremental, not differential
D Correct: This will contain all the files that were modified between the full backup
taken on Tuesday morning and the beginning of the Friday backup All files modified during the day on Friday will be lost as the Saturday backup would not have had time to complete before the hard disk drive failed
E Incorrect: This backup set will not have completed and will be unable to be
restored because the backup file that holds the set on the server will not have been fully written at the time the crash occurred