Oracle 1Z0-821 Free Practice Questions 2021

NEW QUESTION 1
Which command would you use to determine which package group is installed on your system?

• A. pkg list group/system/*
• B. pkg info
• C. uname –a
• D. cat /var/sadm/system/admin/CLUSTEP

Answer: B

Explanation: The pkg info command provides detailed information about a particular IPS package. Note: The pkginfo command does the same for any SVR4 packages you may have
installed on the same system.
pkg info example:
$ pkg info p7zip Name: compress/p7zip
Summary: The p7zip compression and archiving utility
Description: P7zip is a unix port of the 7-Zip utility. It has support for numerous compression algorithms, including LZMA and LZMA2, as well as for various archive and compression file formats, including 7z, xz, bzip2, gzip, tar, zip (read-write) and cab, cpio, deb, lzh, rar, and rpm (read-only).
Category: System/Core State: Installed Publisher: solaris Version: 9.20.1
Build Release: 5.11
Branch: 0.175.0.0.0.2.537
Packaging Date: Wed Oct 19 09:13:22 2011
Size: 6.73 MB
FMRI: pkg://solaris/compress/p7zip@9.20.1, 5.11-0.175.0.0.0.2.537:20111019T091322Z

NEW QUESTION 2
Review the non-global zone configuration displayed below:

The global zone has 1024 MB of physical memory. You need to limit the non-global zone so that it uses no more than 500 MB of the global zone's physical memory. Which option would you choose?

• A. Option A
• B. Option B
• C. Option C
• D. Option D
• E. Option E

Answer: C

Explanation: Add a memory cap.
zonecfg:my-zone> add capped-memory
Set the memory cap.
zonecfg:my-zone:capped-memory> set physical=50m End the memory cap specification.
zonecfg:my-zone:capped-memory> end

NEW QUESTION 3
Identify the correct description of an IPS image.

• A. An ISO image of the Solaris media DVD
• B. An IPS repository
• C. A depot location or source where Solaris packages can be installed from
• D. A location where packages can be installed, for example, your Solaris instance

Answer: D

Explanation: An image is a location where packages can be installed. An image can be one of three types:
* Full images are capable of providing a complete system.
* Partial images are linked to a full image (the parent image), but do not provide a complete system on their own.
* User images contain only relocatable packages.

NEW QUESTION 4
The su command by default makes an entry into the log file for every su command attempt. The following is a single line from the file:
SU 12/18 23:20 + pts/1 user1-root What does the + sign represent?

• A. unsuccessful attempt
• B. successful attempt
• C. The attempt was from a pseudo terminal, and not the console.
• D. The attempt was from a user that is in the adm group, same as root.
• E. Time zone is not set.

Answer: B

Explanation: The sulog file, /var/adm/sulog, is a log containing all attempts (whether successful or not) of the su command. An entry is added to the sulog file every time the su command is executed. The fields in sulog are: date, time, successful (+) or unsuccessful (-), port, user executing the su command, and user being switched to. In the preceding example, all su attempts were successful, except for the attempt on 2/23 at 20:51, when user pete unsuccessfully attempted to su to user root.
Look for entries where an unauthorized user has used the command inappropriately. The following entry shows a successful (indicated by +) su from user userid to root.
SU 03/31 12:52 + pts/0 <userid>-root

NEW QUESTION 5
What determines which bits in an IP address represent the subnet, and which represent the host?

• A. Subnet
• B. unicast
• C. netmask
• D. multicast
• E. broadcast

Answer: C

Explanation: A subnetwork, or subnet, is a logically visible subdivision of an IP network. The practice of dividing a network into two or more networks is called subnetting.
The routing prefix of an address is written in a form identical to that of the address itself. This is called the network mask, or netmask, of the address. For example, a specification of the most-significant 18 bits of an IPv4 address, 11111111.11111111.11000000.00000000, is written as 255.255.192.0.

NEW QUESTION 6
User jack logs in to host Solaris and executes the following command sequence:

Which three statements are correct?

• A. User jack can edit testfile because he has read and write permissions at the group level.
• B. User jack can use cat to output the contents of testfile because he has read permission as the file owner.
• C. User jill can change the permissions of testfile because she has write permission for the file at the group level.
• D. User jill can edit testfile because she has read and write permission at the group level.
• E. User jack can change permissions for testfile because he is the owner of the file.
• F. User jack can change permissions for testfile because he has execute permission for the file.

Answer: DEF

NEW QUESTION 7
View the Exhibit.

Which is true regarding the disk drive?

• A. This disk configuration could be used as a ZFS root disk.
• B. This disk contains an SMI disk label.
• C. Slice 7 represents the entire disk and cannot be used as a slice for a file system
• D. The disk contains an EFI disk label.

Answer: A

Explanation: Installing a ZFS Root Pool
The installer searches for a disk based on a recommended size of approximately 13 GB.

NEW QUESTION 8
ServerA contains two ISO images of a package repository named so1.repo.iso-a and so1.repo.iso-b respectively. You need to create a single local package repository on server that clients can connect to. The package repository will be stored on the /export/IPS file system and named repo. The preferred publisher will be named solaris and the publisher URL will be http://serverA.example.com.
Which is the correct procedure to perform on ServerA to create the local Package repository?

• A. cat so1.repo.iso-a sol.repo.iso-b > so1.full.isoMount the ISO image and use the rsync command to extract the contents of the ISO file to the /export/IPS file system.Set the pkg/inst_root property to /export/IPS/repo and the pkg/readonly property to true.Set the preferred publisher by using pkg set-publisher -Ghttp://pkg.oracle.com/solaris/release/ -g http”//serverA.example.com/ solaris
• B. cat so1.repo.iso-a so1.repo.iso-b > /export/IPS/repoSet the pkg/inst_root property to true and the pkg/readonly property to /export/IPSSet the preferred publisher by using pkg set-publisher -G http://serverA.example.com/ -g http://pkg/oracle.com/solaris/rekease/solaris
• C. cat so1.repo.iso-a so1.repo.iso-b > so1.full.isoMount the ISO image and use the rsync command to extract the contents of the ISO file to /export/IPS/repoSet the pkg/inst_root property to /export/IPS/repo and the pkg/readonly property to trueSet the preferred publisher by using pkg set-publisher solaris -g http://pkg.oracle.com/
• D. cat so1.repo, iso-a so1.repo.iso-b > /export/IPS/repo.isoMount the ISO image and copy the repo directory from the ISO image to /export/IPS/reposet the pkg/inst_root property and the pkg/readonly property to /export/IPS/reposet the preferred pkg/inst_root property by using pkg set-publisher - G http://serverA.example.com/ - g http://pkg.oracle.com/solaris.com/release/- p solaris

Answer: A

NEW QUESTION 9
User jack on host solaris attempts to use ssh to log in to host oracle and receives this message:
jack@solaris:~$ ssh oracle
ssh: connect to host oracle port 22: connection refused What is the problem?

• A. Host oracle does not have a valid host public key.
• B. Host oracle does not have a valid host private key.
• C. Host solaris does not have a valid host public key.
• D. Host does not have a valid host private key.
• E. Host solaris is not configured for host-based authentication.
• F. Host oracle is not configured for host-based authentication.
• G. Host oracle is not running the ssh service.
• H. Host solaris is not running the ssh service.

Answer: G

Explanation: The host he is trying to connect to (oracle) is not running the required service (ssh).

NEW QUESTION 10
You are going to create live zones on you server. Disk space is critical on this server so you need to reduce the amount of disk space required for these zones. Much of the data required for each of these zones is identical, so you want to eliminate the duplicate copies of data and store only data that is unique to each zone.
Which two options provide a solution for eliminating the duplicate copies of data that is common between all of these zones?

• A. Create the zones by using sparse root zones.
• B. Set the dedup property to on and the dedupratio to at least 1.5 for the zpool.Create a separate ZFS file system for each zone in the zpool.
• C. Put all of the zones in the same ZFS file system and set the dedupratio property for the ZFS file system to at least 1.5.
• D. Put all of the zones in the same ZFS file system and set the dedup property for the file system to on.
• E. Put each zone in a separate ZFS file system within the same zpoo
• F. Set the dedup property to on for each ZFS file system.

Answer: DE

Explanation: n Oracle Solaris 11, you can use the deduplication (dedup) property to remove redundant data from your ZFS file systems. If a file system has the dedup property enabled, duplicate data blocks are removed synchronously. The result is that only unique data is stored, and common components are shared between files.

NEW QUESTION 11
You are installing the Solaris 11 Operation System by using the Text Installer. A panel
prompts you to create a root password and a user account.
Which four describe your options for completing this panel of the Installation?

• A. Creating a user account is optional.
• B. The root password must be set and cannot be blank.
• C. The root password can be left blank.
• D. If you provide a username, that user is assigned the root role.
• E. If you provide a username, that user is given root privileges.
• F. If you provide a username, root is an account rather than a role and is set to expire immediately.
• G. If you do not provide a username, root is an account rather than a role and is set to expire immediately.

Answer: ABDG

Explanation: A: You are not required to create a user account. B: You must create a root password.
D: If you create a user account in this panel, you need to provide both the user's password and a root password.
In this case, root will be a role assigned to the user.
G: If you do not create a user account, you still need to provide a root password. In this case, root will be a regular user.

NEW QUESTION 12
Examine this command and its output:
# zoneadm list Global
zone2
Which two outcomes can be deduced from this output?

• A. There is exactly one nonglobal zone installed.
• B. There is one nonglobal zone running.
• C. There is at least one oneglobal zone configured.
• D. There is one nonglobal zone that is not configured.
• E. There is one nonglobal zone that is not running.
• F. The is one nonglobal zone that is not installed.
• G. There is exactly one nonglobal zone configured.

Answer: BC

NEW QUESTION 13
On server A, you enter the following command to add a static route to serverA route -p add
-host 192.168.1.101 192.168.1.101 -static
What is the purpose of this command?

• A. to temporarily bypass IP Filter rules
• B. to specify an IPMP target IP address to in.mpathd
• C. to specify routing to an adjacent network when in.rdisc is not used
• D. to specify routing to an adjacent network when in.routed is not used
• E. to ensure the IP address for serverB is not flushed from the ARP cache
• F. to optimize link aggregation using a direct connection between two systems

Answer: B

Explanation: Note: # route -p add -host destination-IP gateway-IP -static
where destination-IP and gateway-IP are IPv4 addresses of the host to be used as a target.
For example, you would type the following to specify the target system 192.168.10.137, which is on the same subnet as the interfaces in IPMP group itops0:
$ route -p add -host 192.168.10.137 192.168.10.137 -static
This new route will be automatically configured every time the system is restarted. If you
want to define only a temporary route to a target system for probe-based failure detection, then do not use the -p option.

NEW QUESTION 14
New features wore added to ZFS in Oracle Solaris11. Your justification to upgrade from Solaris10 to oracle Solaris11 is that it will be possible to take advantage of the enhancements that were made to ZFS.
Identify the three ZFS functions and features that are included in Oracle Solaris 11, but not in Solaris 10.

• A. Encrypted ZFS datasets
• B. Ability for ZFS to detect and remove redundant data from the tile system
• C. Shadow Data Migration
• D. Ability to split a mirrored ZFS storage pool
• E. Ability to use ZFS on the boot drive and boot to a ZFS root file system.
• F. elimination of the swap file system when using ZFS on the root disk

Answer: ABC

Explanation: http://www.oracle.com/technetwork/server-storage/solaris11/overview/solaris-matrix- 1549264.html

NEW QUESTION 15
A local repository is available on this system and you need to enable clients to access this repository via HTTP. The repository information is:
PUBLISHERTYPESTATUSURI
solarisoriginonlinehttp://sysA.example.com
Identify two of the steps that are required to make the local repository on this server available to the client via HTTP.

• A. On the server: set the pkg/inst_root and pkg/readonly properties for the svc:/application/pkg/server:default service and enabled the service
• B. On the server: set the sharefs property on the ZFS file system containing the IPS repository.
• C. On the client: reset the origin for the solaris publisher.
• D. On the client: set the pkg/inst_root and pkg/readonly properties for the svc:/application/server:default service enable the service.
• E. On the client: start the pkg.depotd process.

Answer: AE

Explanation: A: Configure the Repository Server Service
To enable clients to access the local repository via HTTP, enable the application/pkg/server Service Management Facility (SMF) service.
# svccfg -s application/pkg/server setprop pkg/inst_root=/export/repoSolaris11
# svccfg -s application/pkg/server setprop pkg/readonly=true
E: Use pkg.depotd to serve the repository to clients. Start the Repository Service
Restart the pkg.depotd repository service.
# svcadm refresh application/pkg/server
# svcadm enable application/pkg/server
To check whether the repository server is working, open a browser window on the localhost location.

NEW QUESTION 16
Review the ZFS dataset output that is displayed on your system:

Which four correctly describe the output?

• A. /data/file4 has been added.
• B. The link /data/file3 has been added.
• C. /data/file3 has been renamed to /data/file13.
• D. /data/file4 has been modified and is now larger.
• E. /data/file1 has been deleted.
• F. /data/file1 has been modified and is now smaller.
• G. /data/file5 has been modified.
• H. /data/file3 (a link) has been removed.

Answer: ACEG

Explanation: A: + Indicates the file/directory was added in the later dataset
C: R Indicates the file/directory was renamed in the later dataset E: - Indicates the file/directory was removed in the later dataset
G: M Indicates the file/directory was modified in the later dataset
Note: Identifying ZFS Snapshot Differences (zfs diff)
You can determine ZFS snapshot differences by using the zfs diff command.
The following table summarizes the file or directory changes that are identified by the zfs diff command.
File or Directory Change Identifier
* File or directory is modified or file or directory link changed M
* File or directory is present in the older snapshot but not in the newer snapshot
—
* File or directory is present in the newer snapshot but not in the older snapshot
+
* File or directory is renamed R

NEW QUESTION 17
Oracle Solaris 11 kernel encounters a fatal error, and it results in a system panic.
What type of file does this generate?

• A. a.out
• B. objdump
• C. core dump
• D. tape dump
• E. crash dump

Answer: C

Explanation: A kernel panic is a type of error that occurs when the core (kernel) of an operating system receives an instruction in an unexpected format or when it fails to handle properly. A kernel panic can also follow when the operating system can’t recover from a different type of error. A kernel panic can be caused by damaged or incompatible software or, more rarely, damaged or incompatible hardware.
When a server kernel panics it abruptly halts all normal system operations. Usually, a kernel process named panic() outputs an error message to the console and stores debugging information in nonvolitile memory to be written to a crash log file upon restarting the computer. Saving the memory contents of the core and associated debugging information is called a “core dump.”