Veritas.Test4prep.VCS-255.v2017-01-02.by.barbara€¦ · Exam A QUESTION 1 Which three commands can be used to identify a failed disk managed by Veritas Volume Manager? (Select three.)

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VCS-255

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Exam A

QUESTION 1Which three commands can be used to identify a failed disk managed by Veritas Volume Manager? (Select three.)


A. vxerror

B. vxdisk

C. vxassist

D. vxprint

E. vxnotify

F. vxcheck

Correct Answer: BDESection: (none)Explanation

Explanation/Reference:

QUESTION 2Which command lists the disks in a disk group that contain a copy of the configuration database?

A. vxdg listdb diskgroup

B. vxdg listconfig diskgroup

C. vxdg listmeta diskgroup

D. vxdg list diskgroup

Correct Answer: DSection: (none)Explanation



QUESTION 3Which command is used to show the current I/O parameters of a Veritas file system?

A. vxprint

B. vxfstune

C. vxtunefs

D. vxprintfs

Correct Answer: CSection: (none)Explanation


QUESTION 4When does vxprint fail to display volume configuration after a system reboot?

A. When there are raw volumes beyond 1 TB

B. When there are file systems beyond 1 TB

C. When the install-db file exists

D. When the install-db file has been deleted



QUESTION 5Which methods enable you to resize both a volume and its mounted Veritas file system at the same time? (Choose two.)

A. vxresize

B. vxdisk resize

C. fsadm

D. VEA

E. vxassist


Correct Answer: ADSection: (none)Explanation


QUESTION 6Before creating a new disk group using VEA in a SAN environment, it is recommended that you_____.

A. Double-click the disk group icon

B. Perform a rescan operation to update the VEA view

C. Use the New Disk Group function in VEA by selecting Actions?>SAN?>New DiskGroup

D. Perform the refresh SAN Disk Group function under Tools

Correct Answer: BSection: (none)Explanation


QUESTION 7Which commands can you use to add the Disk_4 disk to the datadg disk group? (Choose two.)

A. vxdg -g datadg adddisk datadg02=Disk_4

B. vxdisk -g datadg adddisk datadg02=Disk_4

C. vxdg -g datadg newdg02=Disk_4

D. vxdisk -g datadg newdg02=Disk_4

E. vxdg -g datadg adddisk Disk_4

F. vxdisk -g datadg Disk_4

Correct Answer: AESection: (none)Explanation



QUESTION 8What is the recommended first step to upgrade Veritas File System (VxFS)?


A. reboot the machine to multi-user mode

B. reboot the machine to single-user mode

C. mount unmounted VxFS file systems

D. unmount mounted VxFS file systems



QUESTION 9Which command can be used to change the Volume Manager disk name of a disk?

A. vxdisk

B. vxedit

C. vxdiskadm

D. vxdg



QUESTION 10What is the result of executing the command vxdg -tC -n appldg import datadg?


A. The appldg disk group is renamed as datadg and forcibly imported to a new host.

B. The appldg disk group is temporarily imported using the new name datadg and import locks are cleared upon import.

C. The datadg disk group is temporarily imported using the new name appldg and import locks are cleared upon import.

D. The datadg disk group is forcibly imported under the new name appldg, unless import locks exist, in which case the import fails.



QUESTION 11What are the advantages of using a logical point-in-time copy (PITC)? (Choose two.)

A. The PITC is initially a complete copy of the primary data.

B. The PITC is available for use instantaneously.

C. Potentially, less storage space is required.

D. The storage space required is the same regardless of volume size.

E. The PITC can be split into a separate volume.

Correct Answer: BCSection: (none)Explanation


QUESTION 12Which vxassist parameter is used to set the size of the stripes in a stripe volume?

A. stripesize

B. stripecolsize

C. stripeunit

D. stsize

Correct Answer: CSection: (none)


Explanation


QUESTION 13What are valid reasons for adding a mirror to a volume? (Choose three.)

A. To add redundancy through parity

B. To eliminate a single point of failure

C. To improve write performance

D. To improve read performance

E. To migrate data



QUESTION 14The datavol volume uses the datadg01 disk in the datadg disk group. If the hardware LUN that corresponds to the disk is resized, which command updates theVeritas Volume Manager disk headers and other structures?

A. vxresize -g datadg datavol datadg01

B. vxresize -g datadg datadg01

C. vxdisk -g datadg resize datadg01

D. vxassist -g datadg resize datavol datadg01



QUESTION 15Which command is used to determine the amount of unallocated space for all disk groups?


A. vxdg -o alldgs free

B. vxdg free

C. vxdg list

D. vxdg -o alldgs list



QUESTION 16Which command creates a RAID-5 volume with an attached log?

A. vxassist -g datadg make datavol layout=raid5 ncol=3

B. vxassist -g datadg make datavol layout=raid5,addlog ncol=3

C. vxassist -g datadg make datavol layout=raid5,raid5log ncol=3

D. vxassist -g datadg make datavol layout=raid5,rlog ncol=3

Correct Answer: ASection: (none)Explanation


QUESTION 17What are the advantages of layered volumes? (Choose two.)

A. Faster recovery time

B. Use of more VM objects

C. Better write performance

D. Higher resiliency

E. Less disk space usage




QUESTION 18In the output of the vxdisk -o alldgs list command, there are no entries in the DISK and GROUP columns. However, you see online in the output of the STATUScolumn. What does the online status indicate? (Choose three.)


A. The disk is currently imported on another system.

B. The disk is NOT currently assigned to a disk group.

C. The disk is currently deported on another system.

D. The disk has been initialized.

E. The disk is in the free disk pool.



QUESTION 19To track changes to files and directories in a file system to improve performance of a search engine application, which Veritas File System feature do you enable?

A. The intent log

B. The file change log

C. The object location table file

D. The quotas file




QUESTION 20A disk is removed from a disk group using the following command:vxdg -g datadg rmdisk datadg01The status of the disk is _____.

A. Online

B. Invalid

C. Foreign

D. Offline



QUESTION 21What must you do to rename the testdg disk group to engdg from the command line?

A. Destroy the disk group and then re-create the disk group using the new name.

B. Use the vxdg change command, which performs a deport and an import in a single step.

C. Use vxdg deport followed by vxdg import; the volumes are automatically started in the disk group after the import.

D. Use vxdg deport followed by vxdg import and then manually start volumes in the disk group by using the vxvol command.



QUESTION 22Which statements are true about adding a mirror to a volume? (Choose three.)

A. Only concatenated or striped volumes can be mirrored.

B. By default, a mirror is created with the same layout as the original volume.


C. A volume can have up to 64 mirrors.

D. Disks with mirrors can be in different disk groups.

E. Each mirror must reside on a separate LUN.

Correct Answer: ABESection: (none)Explanation


QUESTION 23What are the different operating modes of the vxconfigd daemon? (Choose three.)

A. Enabled

B. Faulted

C. Stopped

D. Booted

E. Disabled

Correct Answer: ADESection: (none)Explanation


QUESTION 24Which two disk group names are reserved system-wide? (Select two.)

A. rootdg

B. vmdg

C. nodg

D. defaultdg

E. systemdg

Correct Answer: CDSection: (none)Explanation



QUESTION 25What are the options when you deport a disk group? (Choose two.)

A. Rename

B. Simple

C. New version

D. New host

E. Temporary



QUESTION 26Which vxprint parameters display subvolume information?

A. -sv

B. -r

C. -s

D. -l



QUESTION 27Which command is used to restart the configuration daemon with debugging turned on at its highest level?

A. vxconfigd -k -x 9


B. vxconfigd -k -d 9

C. vxconfigd -d 9

D. vxconfigd -r -d 9



QUESTION 28Which vxassist command option changes the layout of a layered volume to a non-layered volume?


A. Mirror

B. Relayout

C. Convert

D. Layered



QUESTION 29Which conversion option is used to convert a RAID 0+1 volume to a layered volume?

A. mirror-stripe to stripe-mirror

B. stripe-mirror to mirror-stripe

C. mirror-concatenate to concatenate-mirror

D. mirror-stripe to mirror-concatenate




QUESTION 30Which Veritas Volume Manager command permanently removes a disk from Volume Manager control?

A. vxvolunsetup

B. vxdg deport

C. vxdiskunsetup

D. vxdisk init



QUESTION 31The volume datavol has been created, but the volume contents have yet to be initialized. The volume datavol is in which state?

A. EMPTY

B. INIT

C. NEEDINIT

D. NEEDSYNC



QUESTION 32For disaster recovery purposes, data are mirrored between arrays at two sites. Which read policy ensures that the local system accesses data from the local site?


A. select

B. prefer

C. siteread

D. local



QUESTION 33Which command can be used to deactivate an I/O path for a dynamic multipathing enabled device?

A. vxdmpadm deactivate path=path_name

B. vxdmpadm disable path=path_name

C. vxdmpadm detach path=path_name

D. vxdmpadm dissociate path=path_name



QUESTION 34In the datavol volume, there are two plexes, both in a DISABLED/CLEAN state. Which command would make the plexes and volumes available?

A. vxvol start datavol

B. vxvol set datavol=ENABLED

C. vxedit start datavol

D. vxedit set datavol=ENABLED




QUESTION 35An administrator needs to report the maximum size a volume can be grown. Which Veritas Volume Manager command reports the maximum possible size of avolume?

A. vxassist

B. vxstat

C. vxmake

D. vxprint



QUESTION 36Which command is used to view the datadg disk group configuration that would be restored from a backup?


A. vxconfigrestore -l datadg

B. vxconfigrestore -c datadg

C. vxconfigrestore -v datadg

D. vxconfigrestore -p datadg




QUESTION 37Where are Veritas Volume Manager disk group configuration backup files located?

A. /etc/vx/cbr/bk

B. /etc/vx/vxconfig

C. /etc/vx/bin

D. /etc/vx/vxcbr/bk



QUESTION 38Which criteria does Veritas Volume Manager use to determine whether a disk should be marked FAILED instead of FAILING?

A. The third failed I/O has been reached.

B. The vxprint command returns kernel state as failed.

C. The private region is inaccessible.

D. The plex is invalid within the diskgroup.



QUESTION 39Which command lists all disk groups, including deported disk groups?

A. vxprint -ht

B. vxprint -A

C. vxdg -o alldgs list

D. vxdisk -o alldgs list




QUESTION 40What are two valid mount options for a Veritas File System? (Select two.)

A. mincache=direct

B. shared

C. discovered_direct_iosz=262144

D. delaylog

E. logdelay



QUESTION 41Which command can be used to initialize a disk?

A. vxedit

B. vxdiskadm

C. vxdiskstart

D. vxinit



QUESTION 42Which command can be used to display the default disk group?


A. vxdg list

B. vxdg defaultdg

C. vxdctl listdefault

D. vxdctl defaultdg



QUESTION 43The datadg disk group is defined as the default disk group for a system. Which disk group name should be specified with the vxdctl defaultdg command to clear thisdefault?

A. nulldg

B. nodg

C. bootdg

D. rootdg



QUESTION 44An administrator is planning to remove the datavol volume from the datadg disk group from the command line. The file system is currently unmounted, and the datacan be destroyed. What are the next steps to remove the volume and avoid system errors?

A. Run the vxremove command and the datavol entry is automatically removed from the file system table.

B. Run the vxassist remove command and manually remove the datavol entry from the file system table.

C. Run the vxassist remove command and the datavol entry is automatically removed form the file system table.

D. Run the vxremove command and manually remove the datavol entry from the file system table.

Correct Answer: B


Section: (none)Explanation


QUESTION 45Which command renames the testdg disk group to engdg?

A. vxedit -f rename testdg engdg

B. vxdg -f rename testdg engdg

C. vxdg -n engdg deport testdg

D. vxdg -n testdg deport engdg



QUESTION 46Which command(s) are used to move the datadg disk group from system S1 to system S2?


A. (on S1) vxdg -g datadg -switch -system S2

B. (on S1) vxdg deport datadg; (on S2) vxdg import datadg

C. (on S1) vxdg deport -n S2 datadg; (on S2) vxdctl enable

D. (on S1) vxdg -switch datadg -to S2




QUESTION 47Which two methods enable resizing of both a volume and its mounted Veritas File System at the same time? (Select two.)

A. vxresize

B. vxvol resize

C. vxconcat

D. VEA

E. vxassist



QUESTION 48What are two advantages of layered, versus non-layered, volumes? (Select two.)

A. faster recovery time

B. lower complexity

C. improved write performance

D. higher resiliency

E. improved disk space usage



QUESTION 49When using the VEA, which two items can be right-clicked to create a volume? (Select two.)

A. Basic Group

B. Disk Groups


C. Disks

D. Host

E. Enclosures

Correct Answer: BCSection: (none)Explanation


QUESTION 50Which command prevents Veritas Volume Manager from allocating space on disk DISK_8 when volumes are created without specifying disk allocation?

A. vxdisk set reserve=on DISK_8

B. vxdisk reserve DISK_8

C. vxedit set reserve=on DISK_8

D. vxedit reserve DISK_8



QUESTION 51When using Veritas Volume Manager, what is the correct definition of RAID 1+0?

A. Data stripes are mirrored for read performance and resiliency.

B. Data and parity stripes are mirrored for read performance and resiliency.

C. Mirrors are striped for read performance and simplicity.

D. Data stripes are mirrored with parity for write performance and recovery.




QUESTION 52Which three tasks does the vxassist utility help perform? (Select three.)

A. creating volumes

B. reconfiguring DST rules

C. configuring DMP

D. creating mirrors

E. reconfiguring volumes

Correct Answer: BCESection: (none)Explanation


QUESTION 53Which Veritas Volume Manager action is required prior to removing a plex?

A. delete plex

B. disable plex

C. detach plex

D. dissociate plex



QUESTION 54Refer to the exhibit. What is the disk media name for the device displayed in the vxdisk list output?

A. mydg01


B. c2t0d0

C. mydg

D. aparajita



QUESTION 55Given the command: vxdmpadm start restore policy=check_periodic interval=seconds [10] Which two DMP path restore polices are used by the command? (Selecttwo.)

A. check_all

B. check_periodic

C. check_interval

D. check_disabled

E. check_alternate



QUESTION 56A new Veritas File System is required that will provide very fast writes for many large files, most that are greater than 2GB. Write performance is the highest priority.Which two file system tasks would be best suited for accomplishing this? (Select two.)

A. mkfs -F vxfs /dev/vx/rdsk/datadg/datavol -o bsize=8192,largefiles

B. mount -F vxfs /dev/vx/dsk/datadg/datavol -o qio /data

C. mkfs -F vxfs /dev/vx/rdsk/datadg/datavol -o bsize=2048,largefiles

D. mount -F vxfs /dev/vx/dsk/datadg/datavol -o tmplog /data

E. mount -F vxfs /dev/vx/dsk/datadg/datavol -o fsize=2g,largefiles /data

Correct Answer: AD




QUESTION 57Which two statements are true about adding a mirror to an existing striped volume? (Select two.)

A. The new plex can be concatenated

B. The volume must first be stopped

C. The new plex must be synchronized

D. The stripe unit size will automatically grow by 50%

E. The stripe unit size will automatically shrink by 50%

Correct Answer: ADESection: (none)Explanation


QUESTION 58A disk is removed from a disk group using the following command: vxdg -g datadg rmdisk datadg01 After the command executes, what is the status of the disk?

A. online

B. invalid

C. error

D. empty



QUESTION 59What should be done after a volume with a previously mounted file system is removed from VEA?



A. run the vxdisk -cleanup command to remove the old file system name from the private region and the file system table file

B. run the vxfsclean command to remove the old file system name from the private region and the file system table file

C. edit the Veritas Volume Manager file system table file manually to remove the entry for the old file system

D. edit the OS-specific file system table file manually to remove the entry for the old file system



QUESTION 60Which two can be used to mirror all volumes from one disk to another? (Select two.)

A. vxassist

B. vxmirror

C. vxvol

D. vxdiskadm

E. vxdisk

Correct Answer: BDSection: (none)Explanation


QUESTION 61The following steps for migrating an application from system S1 to S2 have been completed on S1: unmount the file system stop the volume deport disk group Howis the migration completed?


A. (on S2) rescan; import disk group; start volume; mount file system; start application

B. (on S2) rescan; import disk group with -n option; start volume; mount file system; start application

C. (on S2) import disk group with -h option; start volume; mount file system; start application

D. (on S2) import disk group with -startall option; mount file system; start application



QUESTION 62Before creating a new disk group using VEA in a SAN environment, what should be done?

A. perform a refresh operation to update the VEA view

B. perform a rescan operation to update the VEA view

C. perform the refresh SAN Disk Group function under Tools

D. perform the rescan SAN Disk Group function under Tools



QUESTION 63Which two states are displayed in the output of vxprint? (Select two.)

A. Slice

B. Kernel

C. Path

D. Volume

E. Port




QUESTION 64Which Veritas File System feature records any changes to files and directories and improves performance for applications that scan the entire file system?

A. quick log

B. file change log

C. dirty region log

D. data change log



QUESTION 65Which two occur when an initialized disk is added to an existing disk group? (Select two.)

A. The private region on the disk is initialized, but not updated.

B. An empty volume is created on the disk by default.

C. The disk group configuration database is updated.

D. An entry is added to /dev/vx/dsk for the new disk.

E. The disk is stamped with the system host ID.

Correct Answer: CESection: (none)Explanation


QUESTION 66When does vxprint fail to display volume configuration after a system reboot?

A. when the vxinstall-run file exists


B. when the vxinstall-run file is nonexistent

C. when the install-db file exists

D. when the install-db file is nonexistent



QUESTION 67Which two options are available when deporting a disk group? (Select two.)

A. rename

B. dynamic

C. shared

D. new host

E. temporary



QUESTION 68Refer to the exhibit. How many writes did Veritas Volume Manager perform to each disk device?


A. 1


B. 4

C. 16

D. 18



QUESTION 69An administrator is having issues with a volume. Which Veritas Volume Manager command shows kernel state information for volumes in a disk group to assist introubleshooting?

A. vxinfo

B. vxiod

C. vxprint

D. vxdg



QUESTION 70Which plex state indicates that Veritas Volume Manager knows that a plex contains a consistent copy (mirror) of the volume contents, but the volume remainsdisabled?

A. ACTIVE

B. CLEAN

C. SYNC

D. ONLINE




QUESTION 71Given the following command using 72g LUNs: vxassist -g datadg make datavol 72g layout=raid5 ncol=3 How many LUNs are required to construct the datavolvolume?

A. 3

B. 4

C. 5

D. 6



QUESTION 72Refer to the exhibit. Given c1 is the primary path, what happens when I/O fails on c1 for a single LUN in an Active/Passive array?

A. I/O is redirected to c2 for all LUNS.

B. I/O is blocked to c1, and the LUN is marked offline.

C. I/O is blocked to c1, and all LUNS are marked offline.

D. I/O is redirected to c2 for the failed LUN.



QUESTION 73Which utility is used to display compression statistics at a file system level?


A. fsadm

B. vxcompress

C. fsmap

D. vxfsstat



QUESTION 74A user without administration privileges reaches the quota limit and is unable to create new files. Which two actions can the user perform to continue creating newfiles? (Select two.)

A. Compress files using vxcompress

B. Remove files

C. Deduplicate the file system

D. Resize the file system

E. Raise the quota limits

Correct Answer: ABSection: (none)Explanation


QUESTION 75Which access characteristic indicates that a file system might benefit from compression?

A. Low number of reads

B. High number of random writes

C. Low latency

D. High number of sequential writes

Correct Answer: ASection: (none)


Explanation


QUESTION 76What is the default I/O policy for a volume that uses a mirror with site consistency enabled?

A. Siteread

B. Round Robin

C. Selected

D. Preferred



QUESTION 77Which two Volume Manager operations can be performed using vxdiskadm? (Select two.)

A. Exclude an array support library

B. Start/stop event source daemon

C. Change the disk naming scheme

D. Start/stop the vxconfigd daemon

E. Mark a device as a spare

Correct Answer: CESection: (none)Explanation


QUESTION 78What is the maximum private region size for Volume Manager disks?


A. 64M

B. 128M

C. 256M

D. 512M



QUESTION 79The rules of a SmartTier File Placement Policy are used when creating a new file in the file system configured with SmartTier.Which additional instance would require File Placement Policy rules?


A. Executing an fsppadm list on the file system

B. Executing an fsppadm enforce command

C. Executing an fsmap -q command

D. Executing an fsvoladm queryflags command



QUESTION 80Which Symantec Storage Foundation 6.1 for UNIX performance tool generates a large variety of workloads?

A. vxstat

B. vxbench


C. vxtrace

D. vmstat



QUESTION 81Which command will completely remove a plex in an existing volume from Volume Manager?

A. vxplex -g thisdg -o rm dis vol01-02

B. vxplex -g thisdg det vol01-02

C. vxplex -g thisdg dis vol01-02

D. vxedit -g thisdg -rm vol01-02



QUESTION 82Which two commands are used to remove a disk from a disk group? (Select two.)

A. vxdisk

B. vxdiskadm

C. vxunreloc

D. vxdg

E. vxdiskunsetup cted




QUESTION 83Which two Symantec Storage Foundation 6.1 for UNIX objects contain a complete copy of the data or file system? (Select two.)

A. volumes

B. data change object

C. plexes

D. private region

E. space optimized snapshot

Correct Answer: ACSection: (none)Explanation


QUESTION 84Which two commands can be used to identify a failed disk managed by Volume Manager? (Select two.)

A. vxerror

B. vxdisk

C. vxassist

D. vxnotify

E. vxdctl



QUESTION 85Which two features are available only with Storage Foundation Enterprise? (Select two.)

A. SmartTier

B. Veritas File System Deduplication


C. Veritas Operations Manager (VOM)

D. Dynamic Multipathing (DMP)

E. LUN snapshots import ability

Correct Answer: BESection: (none)Explanation


QUESTION 86Which command is used to set the read policy for a preferred plex in a mirrored volume?


A. vxvol

B. vxplex

C. vxassist

D. vxtune



QUESTION 87Where is the File Change Log located after an administrator enables it?

A. /mount_point/lost+found/vxfs/changelog

B. /mount_point/lost+found/vxvm/logs/changelog

C. /mount_point/lost+found/vxsf/logs/changelog

D. /mount_point/lost+found/changelog




QUESTION 88Which command reclaims unused space on a thin reclamation capable LUN that is part of a disk group?

A. vxassist

B. vxreclaim

C. vxdg

D. vxdisk



QUESTION 89A relayout operation was started on the wrong volume.Which actions revert the volume to its original layout?

A. Abort the relayout using the 'vxrelayout' command and then reverse the relayout using the 'vxtask' command

B. Abort the relayout using the 'vxtask' command and then reverse the relayout using the 'vxrelayout' command

C. Pause the relayout using the 'vxtask' command and then reverse the relayout using the 'vxtask' command

D. Pause the relayout using the 'vxrelayout' command and then use the 'vxtask' command.



QUESTION 90


What is the correct definition of RAID-1+0 when using Volume Manager?

A. Data stripes are mirrored for read performance and resiliency.

B. Data and parity stripes are mirrored for read performance and resiliency.

C. Mirrors are striped for read performance and simplicity.

D. Data stripes are mirrored with parity for write performance and recovery.



QUESTION 91Which File System feature, if enabled, will record any changes to files and directories, which will improve the performance for applications that need to scan theentire file system?

A. intent log

B. file change log

C. dirty region log

D. data change log



QUESTION 92Which command lists the disks in a disk group that contain a copy of the configuration database?

A. vxdisk listconfig

B. vxdg listconfig [diskgroup]

C. vxdisk list

D. vxdg list [diskgroup]

Correct Answer: D





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Veritas.Test4prep.VCS-255.v2017-01-02.by.barbara€¦ · Exam A QUESTION 1 Which three commands can be used to identify a failed disk managed by Veritas Volume Manager? (Select three.)