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Q81. - (Topic 1)
Consider the following commands:
What is displayed when this sequence of commands is executed using the bash shell?
B. cat: cannot open file1: No such file or directory Hello,world
C. cat: cannot open file1: No such file or directory
D. bash: syntax error near unexpected token '| |'
E. bash: syntax error broker pipe
Q82. - (Topic 2)
The current ZFS configuration on server is:
You need to backup the /data file system while the file system is active.
Select the option that creates a full backup of the /data file system and stores the backup on server in the pool named backup.
A. Mount -F nfs system: /backup / mntzfs snapshot pool/data@monday>/mnt/Monday
B. Mount -F nfs systemB: /backup/mntzfs snapshot pool1/data@Mondayzfs clone pool1/data@monday/mnt/Monday
C. Zfs send pool1/data@Monday | ssh system zfs recv backup/monday
D. Zfs snapshot pool1/data@Monday | ssh system zfs recv backup/monday
Example (assuming there exists a snapshot ‘tank/test@1).
Now let’s do a full initial backup from the ‘tank/test@1 snapshot:
# zfs send tank/test@1 | zfs receive tank/testback
Q83. - (Topic 2)
You need to migrate a UFS file system named /production_ufs to a ZFS file system named /production_ufs. The /production_ufs file system cannot be taken down or be out of production duringthe migration,and the current /production_ufs file system must remain active until the /ptoduction_zfs file system is copied and ready.
Which method allows you to meet both requirements?
Copy live data from /production_ufs to /production_zfs while /production_ufs is in use.
When the copy is complete,/production_zfs will contain an up-to date copy of /production_ufs
A. Create a snapshot of the UFS file system. Create the new ZFS file system. Use cpio to copy data from the snapshot to the new ZFS file system.
B. Create a new Boot Environment. Create the ZFS file system. Use lucreate -m to copy data from the Current UFS file system to the new ZFS file system.
C. Mirror the existing UFS file system by using SVM.After both submissions are in sync,migrate one of the submissions to a ZFS file System by using Live Upgrade.
D. Create the new ZFS file system by using zfs create import to import data from the existing UFS file system into the new ZFS file system
E. Create the new zfs file system by using the zfs create -o shadow.
Migrating Data With ZFS Shadow Migration ZFS shadow migration is a tool you can use to migrate data from an existing file system to a new file system. A shadow file system is created that pulls data from the original source as necessary.
You can use the shadow migration feature to migrate file systems as follows:
A local or remote ZFS file system to a target ZFS file system
A local or remote UFS file system to a target ZFS file system
Shadow migration is a process that pulls the data to be migrated:
Create an empty ZFS file system.
Set the shadow property on an empty ZFS file system,which is the target (or shadow) file
system,to point to the file system to be migrated.
# zfs create -o shadow=nfs://system/export/home/ufsdata users/home/shadow2
Data from file system to be migrated is copied over to the shadow file system.
Q84. - (Topic 2)
You are configuring NFS on a server. Select the two statements that are true.
A. Resources listed in /etc/dfs/dfstab are automatically shared on boot up.
B. A directory cannot be shared if a subdirectory below it is already shared.
C. Renaming a share created with the zfs set share command is not supported.
D. NFS and SMB protocols cannot be used simultaneously to share the same directory.
A: ZFS can automatically share file systems by setting the sharenfs property. Using this property,you do not have to modify the /etc/dfs/dfstab file when a new file system is shared. The sharenfs property is a comma-separated list of options to pass to the share command. The value on is an alias for the default share options,which provides read/write permissions to anyone. The value off indicates that the file system is not managed by ZFS and can be shared through traditional means,such as the /etc/dfs/dfstab file. All file systems whose sharenfs property is not off are shared during boot.
Q85. - (Topic 1)
You need to install the solaris-desktop group package. Which command would you use to list the set of packages included in that software group?
A. pkg search
B. pkg info
D. pkg contents
Use the pkg search command to search for packages whose data matches the specified pattern.
Like the pkg contents command,the pkg search command examines the contents of packages. While the pkg contents command returns the contents,the pkg search command returns the names of packages that match the query.
Q86. - (Topic 1)
In order to display the IP addresses of network interfaces,what command would you use?
'ipadm show-addr' displays all the configured addresses on the system.
Example: # ipadm show-addr ADDROBJ TYPE STATE ADDR lo0/v4 static ok 127.0.0.1/8 lo0/v6 static ok ::1/128
Q87. - (Topic 2)
Review the zonestat command:
zonestate - q physical - memory -R high -z -p -p “zones” 10 24h 60m
Select the option that correctly describes the information that is displayed by this command.
A. It is a sample of dbzone’s physical memory usage taken every hour over a 24-hour period.Only the top 10 samplings of peak memory usage are displayed. All other utilization data is eliminated.
B. It is a sample of dbzone’s CPU,virtual memory,and networking utilization.Physical memory is executed from the report.The sampling is taken every 10 minutes over a 24-hour period and peak utilization id displayed each hour.
C. It is a sample of dbzone’s CPU,virtual memory,and networking utilization.Physical memory is executed from the report.The sampling is taken every 10 minutes over a 24-hour period and displayed each hour.
D. It is a sample of dbzone’s physical memory usage taken every 10 seconds and 24-hour period.Only peak virtual memory usage and CPU utilization are displayed each hour.All other Utilization data is eliminated.
E. It is a sample of dbzone’s physical memory usage taken every 10 seconds and 24-hour period.Only peak memory usage is displayed each hour.All other utilization data is eliminated.
(Not A,B,C): interval (here 10 seconds): Specifies the length in seconds to pause between each interval report.
duration (here 24 h)
* -R report[,report] (here high) Print a summary report.
High Print a summary report detailing the highest usage of each resource and zone during any interval of the.zonestat.utility invocation.
Note: The zonestat utility reports on the cpu,memory,and resource control utilization of the currently running zones. Each zone's utilization is reported both as a percentage of system resources and the zone's configured limits.
The zonestat utility prints a series of interval reports at the specified interval. It optionally also prints one or more summary reports at a specified interval.
The default output is a summary of cpu,physical,and virtual memory utilization. The -r option can be used to choose detailed output for specific resources.
Q88. - (Topic 1)
Which two SMF milestones can be specified at boot time?
The milestones that can be specified at boot time are
none single-user multi-user multi-user-server all
Q89. - (Topic 2)
You created a new zpool. Now you need to migrate the existing ZFS file system from pool1/prod to pool2/prod.
You have these requirements:
Users must have access to the data during the migration,so you cannot shutdown the file system while the migration takes place.
Because you want to copy the data as quickly as possible,you need to increase the server resources devoted to the ZFS migration.
Which method would you use to modify the ZFS shadow migration daemon defaults to increase the concurrency and overall speed of migration?
A. Svccfg - s filesystem/shadowd:defaultsetprop config_params/shadow_threads=integer: 16endsvcadm refresh filesystem/shadowd: default
B. Specify the -b <blocksize> option with the zfs create command and increase the value of <blocksize>
C. Use the -o -volblocksize=<blocksize>option with the zfs create command and increase the value of the default <blocksize>.
D. Svccfg -s filesystem/zfs: defaultsetprop config_params/shadow_threads = integer: 16endsvcadm refresh filesystem/zfs:default
shadowd is a daemon that provides background worker threads to migrate data for a shadow migration. A shadow migration gradually moves data from a source file system into a new “shadow” file system. Users can access and change their data within the shadow file system while migration is occurring.
The shadowd service is managed by the service management facility,smf(5). Administrative actions on this service,such as enabling,disabling,or requesting restart,can be performed using svcadm(1M). The service's status can be queried using the svcs(1) command.
The svccfg(1M) command can be used to manage the following parameter related to shadowd:
Note: Oracle Solaris 11: In this release,you can migrate data from an old file system to a new file system while simultaneously allowing access and modification of the new file system during the migration process.
Setting the shadow property on a new ZFS file system triggers the migration of the older data. The shadow property can be set to migrate data from the local system or a remote system with either of the following values:
Q90. - (Topic 1)
You have a user that needs to use the cron tool to schedule some repetitive tasks. When the user enters the crontab –e command in a terminal window,the following error appears:
crontab: you are not authorized to use cron. Sorry
In order to troubleshoot this issue,in what directory would you start your invest
crontab: you are not authorized to use cron. Sorry.
This message means that either the user is not listed in the cron.allow file (if the file
exists),or the user is listed in the cron.deny file.
You can control access to the crontab command by using two files in the /etc/cron.d
directory: cron.deny and cron.allow. These files permit only specified users to perform
crontab command tasks such as creating,editing,displaying,or removing their own crontab
The cron.deny and cron.allow files consist of a list of user names,one user name per line.