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2021 Aug 1Z0-821 practice test

Q21. - (Topic 1) 

View the Exhibit to see the information taken from the installation log file. 

Based on the information presented in the Exhibit,which two options describe the state of the system when the server is booted for the first time after the installation is complete? 

A. NWAM will be used to configure the network interface. 

B. The network/physical service is offline. 

C. You cannot log in from the console as root. You must first log in as a user and then su to 

root account. 

D. The root user can log in from the console login. 

E. You will be prompted to configure the network interface after the initial login. 

Answer: B,D 

Q22. - (Topic 2) 

The ZFS configuration on your server is: 

Pool1 6.67G31K/pool 


Select the three commands that you would use to 1. Create,2. List,and 3. Delete a snapshot of the /data file system. 

A. zfs snapshot pool1/data@now 

B. zfs create snapshot pool1/data@now 

C. zfs list -t snapshot 

D. zfs list -t snapshot pool1/data 

E. zfs destroy pool1/data@now 

F. zfs destroy snapshot pool1/data@now 

Answer: A,D,E 


A: Snapshots are created by using the zfs snapshot command,which takes as its only argument the name of the snapshot to create. 

D: You can list snapshots as follows: # zfs list -t snapshot 

E: Snapshots are destroyed by using the zfs destroy command. For example: 

# zfs destroy tank/home/ahrens@now 

Q23. - (Topic 1) 

To help with your troubleshooting,you need to determine the version of the OBP. Which two commands will provide you with this information? 

A. printenv 

B. banner 

C. .version 

D. set-env 

E. show-devs 

F. value version 

Answer: B,C 


B: banner 

Displays power-on banner. 

The PROM displays the system banner. The following example shows a 

SPARCstation 2 banner. The banner for your SPARC system may be different. 

SPARCstation 2,Type 4 Keyboard ROM Rev. 2.0,16MB memory installed,Serial # 289 Ethernet address 8:0:20:d:e2:7b,Host ID: 55000121 

C: .version 

Displays version and date of the boot PROM. 

Note: OBP-OpenBootProm is a firmware which is placed on the sun 

machine's prom chip. 

It is a os independent user interface to deal with the sun machine's hardware components. 

The user interface provides one or more commands to display system information. 

Q24. - (Topic 2) 

You are asked to troubleshoot networking issues on an unfamiliar system. 

Select the correct command to display what network devices are installed. 

A. ifconfig -a 

B. dladm show-dev 

C. dladm show-phys 

D. dladm show-ether 

E. netadm show-dev 

F. netadm show-ether 

Answer: B 


dladm show-dev 

Shows information for all devices or the specified device. 

Q25. - (Topic 1) 

Review the storage pool information: 

Choose the correct procedure to repair this storage pool. 

A. Shut the system down,replace disk c3t3d0,and boot the system. When the system is booted,execute the zpool clear pool1 command. 

B. Shut the system down,replace disk c3t3d0,and boot the system. When the system is booted execute the zpool online pool1 command. 

C. Shut the system down,replace disk c3t3d0,and boot the system. When the system is booted,execute the zpool replace pool1 c3t3d0 command. 

D. Shut the system down,replace disk c3t3d0,and boot the system. When the system is booted,execute the zpool replace pool1 c3t3d0 c3t3d0 command. 

Answer: C 


You might need to replace a disk in the root pool for the following reasons: 

The root pool is too small and you want to replace it with a larger disk 

The root pool disk is failing. In a non-redundant pool,if the disk is failing so that the system 

won't boot,you'll need to boot from an alternate media,such as a CD or the network,before 

you replace the root pool disk. 

In a mirrored root pool configuration,you might be able to attempt a disk replacement 

without having to boot from alternate media. You can replace a failed disk by using the 

zpool replace command. 

Some hardware requires that you offline and unconfigure a disk before attempting the 

zpool replace operation to replace a failed disk. 

For example: 

# zpool offline rpool c1t0d0s0 

# cfgadm -c unconfigure c1::dsk/c1t0d0 

<Physically remove failed disk c1t0d0> 

<Physically insert replacement disk c1t0d0> 

# cfgadm -c configure c1::dsk/c1t0d0 # zpool replace rpool c1t0d0s0 # zpool online rpool c1t0d0s0 # zpool status rpool <Let disk resilver before installing the boot blocks> SPARC# installboot -F zfs /usr/platform/`uname -i`/lib/fs/zfs/bootblk /dev/rdsk/c1t0d0s0 x86# installgrub /boot/grub/stage1 /boot/grub/stage2 /dev/rdsk/c1t9d0s0 

1Z0-821  exam fees

Updated 1Z0-821 free exam questions:

Q26. - (Topic 1) 

Examine the following command sequence: 

Which three are true? 

A. User jill, a member of the group other, can do a long listing (1s -1) of user jack's home directory. 

B. User oracle, not a member of the group other, cannot execute the shell script scriptfile. 

C. User jill, a member of the group other, can make a copy of testfile in dira. 

D. User jill, a member of the group other, can edit the data content of testfile. 

E. User jill, a member of the group other, cannot delete testfile. 

Q27. - (Topic 2) 

You have completed configuring a zone named dbzone on your Solaris 11 server. The configuration is as following: 

The global zone displays the following network information: 

The zone has never been booted. Which three options correctly describe this zone? 

A. It is a sparse root zone. 

B. It is a whole root zone. 

C. It is an immutable zone. 

D. It is a native zone. 

E. The zone shares the network interface with the host. 

F. The zone uses a virtual network interface. 

G. The hostid is the same as the global zone. 

H. The IP address of the zone is 

Answer: C,E,G 


C: Immutable Zones provide read-only file system profiles for solaris non-global zones. 

Note that ip-type: exclusive: 

Starting with OpenSolaris build 37 and Oracle Solaris 10 8/07,a default zone can be 

configured as an "exclusive-IP zone" which gives it exclusive access to the NIC(s) that the 

zone has been assigned. Applications in such a zone can communicate directly with the 

NIC(s) available to the zone. 

Note on zones: 

After installing Oracle Solaris on a system,but before creating any zones,all processes run 

in the global zone. After you create a zone,it has processes that are associated with that 

zone and no other zone. Any process created by a process in a non-global zone is also 

associated with that non-global zone. 

Any zone which is not the global zone is called a non-global zone. Most people call non-

global zones simply "zones." Some people call them "local zones" but this is discouraged. 

The default native zone file system model on Oracle Solaris 10 is called "sparse-root." This 

model emphasizes efficiency and security at the cost of some configuration flexibility. 

Sparse-root zones optimize physical memory and disk space usage by sharing some 

directories,like /usr and /lib. Sparse-root zones have their own private file areas for 

directories like /etc and /var. Whole-root zones increase configuration flexibility but increase 

resource usage. They do not use shared file systems for /usr,/lib,and a few others. 

There is no supported way to convert an existing sparse-root zone to a whole-root zone. 

Creating a new zone is required. 

Q28. - (Topic 2) 

You have a process called bigscript,and you need to know the PID number for this process. 

Which command will provide that information? 

A. pkill bigscript 

B. ps bigscript 

C. pgrep bigscript 

D. prstat bigscript 

Answer: C 


Pgrep takes a process name and return a PID. 

Note: pgrep looks through the currently running processes and lists the process IDs which matches the selection criteria to stdout. All the criteria have to match. For example, pgrep -u root sshdwill only list the processes called sshd AND owned by root. 

Incorrec answers: 

ps bigscript: You can’t pass a name to ps,it interprets it as arguments. 

Q29. - (Topic 2) 

Which five statements describe options available for installing the Oracle Solaris 11operating system using the installation media? 

A. You can perform a text or LiveCD installation locally or over the network. 

B. The text Installer does not install the GNOME desktop. The GNOME desktop package must he added after you have installed the operating system. 

C. The LiveCD Installation cannot be used to install multiple instances of Oracle Solaris. 

D. The LiveCD installer cannot be used if you need to preserve a specific Solaris Volume Table of Contents (VTOC) slice in your current operating system. 

E. The LiveCD Installer is for x86 platforms only. 

F. The GUI installer cannot be used to upgrade your operating system from Solaris 10. 

G. If you are installing Oracle Solaris 11 on an x86-based system that will have more than one operating system installed in it,you cannot partition your disk during the installation process. 

H. The LiveCD installer can be used for SPARC or x86 platforms. 

Answer: A,B,D,F,H 


A: If the network is setup to perform automated installations,you can perform a text installation over the network by setting up an install service on the network and selecting a text installation when the client system boots. 

B: After a fresh install of Solaris 11 express,only the console mode is activated. 

To add Gnome,simply do : 

$ sudo pkg install slim_install 

This will install additional packages that are not installed by default. 

D: The text installer advantages over the GUI installer include: 

* In addition to modifying partitions,the text installer enables you to create and modify VTOC slices within the Solaris partition. 

F: How do I upgrade my Solaris 10 or lower systems to Solaris 11? 

Unfortunately,you CAN'T. There is no direct upgrade installer or other tool that will allow you to upgrade from earlier releases of Solaris to Solaris 11. This is primarily due to the vast changes in the packaging mechanism in Solaris 10. 

Q30. - (Topic 1) 

You have installed an update to the gzip package and need to "undo" .ho update and return the package to its "as-delivered" condition. Which command would you use? 

A. pkg undo 

B. pkg revert 

C. pkg fix 

D. pkg uninstall 

Answer: B 


Use the pkg revert command to restore files to their as-delivered condition.