Oracle 1Z0-821 Exam Questions and Answers 2021

NEW QUESTION 1
Which network protocol provides connectionless, packet-oriented communication between applications?

• A. TCP
• B. UDP
• C. IP
• D. ICMP
• E. NFS
• F. IPSec

Answer: B

Explanation: The User Datagram Protocol (UDP) is one of the core members of the Internet Protocol Suite, the set of network protocols used for the Internet. With UDP, computer applications can send messages, in this case referred to as datagrams, to other hosts on an Internet Protocol (IP) network without requiring prior communications to set up special transmission channels or data paths.
Compared to TCP, UDP is a simpler message-based connectionless protocol.

NEW QUESTION 2
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 3
You are logged in to a Solaris 11 system as user jack. You issue the following sequence of commands:

Identify two correct statements.

• A. You have the effective privilege of the account root.
• B. Your GID is 10.
• C. Your home directory is /root.
• D. You are running the shell specified for the account root.
• E. Your UID is 1.

Answer: AB

Explanation: Oracle Solaris provides predefined rights profiles. These profiles, listed in the
/etc/security/prof_attr, can be assigned by the root role to any account. The root role is assigned all privileges and all authorizations, so can perform all tasks, just as root can when root is a user.
To perform administrative functions, you open a terminal and switch the user to root. In that terminal, you can then perform all administrative functions.
$ su - root
Password: Type root password
#
When you exit the shell, root capabilities are no longer in effect.

NEW QUESTION 4
Your system is assigned an IP address object 192.168.0.222/24. However, the net mask — expressed as four octets — is required. Which is the correct netmask?

• A. 255.0.0.0
• B. 255.255.0.0
• C. 255.255.255.0
• D. 255.255.255.24
• E. 255.255.255.255

Answer: C

Explanation: A 24-bit network mask is expressed as 255.255.255.0.

NEW QUESTION 5
This iron is displayed on the desktop of a laptop computer, which is running Oracle Solaris 11.

Which two statements describe the Information conveyed by this Icon?

• A. NWAM is disabled.
• B. NWAM is automatically configuring the network.
• C. The wireless network card is manually configured and operational.
• D. The wireless network card is manually configured but not operational.
• E. The wireless network card is automatically configured and operational.
• F. The wireless network card is automatically configured but not operational.

Answer: BC

Explanation: B: The Network Status notification icon is only displayed on the desktop if you are using NWAM to automatically configure your network.
C: All online (Wireless)
Indicates all manually enabled connections in the enabled network profile are online and that the required number of connections in the enabled profile group (if such a group exists) are online. The required number is the same as those described for the All online (Wired) status.
Note that at least one online connection is wireless.

NEW QUESTION 6
You need to update an OS image on a client. The pkg publishers command displays the wrong publisher with the wrong update:
PUBLISHERTYPESTATUSURI
Solaris origin onlinehttp://pkg.oracle.com/solaris/release
The update is available on the updated publisher: PUBLISHERTYPESTATUSURI
Solaris originonlinehttp://sysA.example.com
Select the option that describes the procedure used to update the OS image on the system from the updated publisher.

• A. Copy the repository from the ISO image onto the local clien
• B. Configure the repository on the client by using the svccfg - s command so that the Solaris publisher is connected to the new repositor
• C. Refresh the application/pkg/server servic
• D. Issue the pkgrepo refresh command to refresh the repository catalog
• E. Configure the publisher on the client using the svcfg - s command so that the Solaris publisher is connected to the repository at http://sysA.example.comRefresh the application/pkg/server servic
• F. Issue the pkgrepo refresh command to repository catalog
• G. Use the pkg set-publisher command to change the URL of the publisher Solaris to http://sysA.example.co
• H. Issue the pkg update command to update the OS image.
• I. Add the new publisher http://sysA.example.com SolarisUse the pkg set-publisher command to set the publisher search order and place http://sysA.example.com of http://pkg.oracle.com/solaris/releaseIssue the pkg publisher command to view the publisher
• J. Set the new publisher to stick
• K. Issue the pkg update command to update the OS image.

Answer: C

Explanation: You can use the pkg set-publisher command to change a publisher URI. Changing a Publisher Origin URI
To change the origin URI for a publisher, add the new URI and remove the old URI. Use the -g option to add a new origin URI. Use the -G option to remove the old origin URI.
# pkg set-publisher -g http://pkg.example.com/support
-G http://pkg.example.com/release example.com
Note: You can use either the install or update subcommand to update a package.
The install subcommand installs the package if the package is not already installed in the image. If you want to be sure to update only packages that are already installed, and not install any new packages, then use the update subcommand.

NEW QUESTION 7
You notice that the /var/.dm/messages file has become very large. Typically, this is managed by a crontab entry. Which entry should be in the root's crontab file?

• A. 10 3 * * * /usr/adm/messages
• B. 10 3 * * * /usr/sbin/logadm
• C. 10 3 * * * /usr/sbin/syslogrotate
• D. 10 3 * * * /usi/sbin/logrotate
• E. 10 3 * * * /usr/sbin/messages

Answer: B

Explanation: This example shows how to display the default root crontab file.
$ suPassword:
# crontab -l
#ident "@(#)root 1.19 98/07/06 SMI" /* SVr4.0 1.1.3.1 */
#
# The root crontab should be used to perform accounting data collection.
#
#
10 3 * * * /usr/sbin/logadm
15 3 * * 0 /usr/lib/fs/nfs/nfsfind
30 3 * * * [ -x /usr/lib/gss/gsscred_clean ] && /usr/lib/gss/gsscred_clean
#10 3 * * * /usr/lib/krb5/kprop_script slave_kdcs

NEW QUESTION 8
Which files must be edited in order to set up logging of all failed login attempts?

• A. /etc/default/login, /var/adm/loginlog, /etc/syslog.conf
• B. /etc/default/login, /var/adm/authlog, /etc/syslog.conf
• C. /var/adm/loginlog, /var/adm/authlog, /etc/syslog.conf
• D. /etc/default/login, /var/adm/authlog, /var/adm/loginlog

Answer: B

Explanation: This procedure captures in a syslog file all failed login attempts.
1. Set up the /etc/default/login file with the desired values for SYSLOG and SYSLOG_FAILED_LOGINS
Edit the /etc/default/login file to change the entry. Make sure that SYSLOG=YES is uncommented.
2. Create a file with the correct permissions to hold the logging information. Create the authlog file in the /var/adm directory.
3. Edit the syslog.conf file to log failed password attempts. Send the failures to the authlog file.

NEW QUESTION 9
You need to set up an Oracle Solaris 11 host as an iSCSI target so that the host's disk can be accessed over a storage network. The disk device is c3t4d0.
Which six options describe the steps that need to be taken on this host to enable an iSCSI target?

• A. Create a ZFS file system named iscsi/target.
• B. Create a zpool named iscsi with disk device c3t4d0
• C. Create zfs volume named iscsi/target.
• D. Use the stmfadm command to create a LUN using /dev/zvol/rdsk/iscsi/target.
• E. Use the stmfadm command to create a LUN using iscsi/target.
• F. Use the stmfadm command to make the LUN viewable.
• G. Use the stmfadm command to make the volume viewable.
• H. Enable the svc:/network/iscsi/target:default Service.
• I. Use the itadm command to create the iSCSI target.

Answer: BCDFHI

Explanation: How to Create an iSCSI LUN
The following steps are completed on the system that is providing the storage device.
Example: target# zpool create sanpool mirror c2t3d0 c2t4d0 (C)2. Create a ZFS volume to be used as a SCSI LUN. (D)3. Create a LUN for the ZFS volume.
Example:
target# stmfadm create-lu /dev/zvol/rdsk/sanpool/vol1
Logical unit created: 600144F0B5418B0000004DDAC7C10001
4. Confirm that the LUN has been created.
Example
target# stmfadm list-lu
LU Name: 600144F0B5418B0000004DDAC7C10001
(F) 5. Add the LUN view.
This command makes the LUN accessible to all systems.
target# stmfadm add-view 600144F0B5418B0000004DDAC7C10001 How to Create the iSCSI Target
This procedure assumes that you are logged in to the local system will contains the iSCSI target.
Note: The stmfadm command manages SCSI LUNs. Rather than setting a special iSCSI property on the ZFS volume, create the volume and use stmfadm to create the LUN.
(H) 1. Enable the iSCSI target service.
target# svcadm enable -r svc:/network/iscsi/target:default
(I) 2. Create the iSCSI target.
target# itadm create-target

NEW QUESTION 10
When you issue the “gzip: zommand not found” message is displayed. You need to install the gzip utility on your system.
Which command would you use to check if the gzip utility is available from the default publisher for installation?

• A. pkg info|grep gzip
• B. pkg list SUNWgzip
• C. pkg contents gzip
• D. pkg search gzip

Answer: D

Explanation: Searching for Packages
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.
pkg search
search [-HIaflpr] [-o attribute ...] [-s repo_uri] query Search for matches to the query, and display the results.
Which tokens are indexed are action-dependent, but may include content hashes and pathnames.
Note: pkg is the retrieval client for the image packaging system. With a valid configuration, pkg can be invoked to create locations for packages to be installed, called 'images', and install packages into those images. Packages are published by publishers, who may make their packages available at one or more repositories. pkg, then, retrieves packages from a publisher's repository and installs them into an image.

NEW QUESTION 11
Choose three options that describe the features associated with a Live Media installation.

• A. does not allow the root user to log in to the system directly from the console (or any terminal)
• B. provides a "hands free" installation
• C. installs the desktop based packages
• D. can be used to install only x86 platforms
• E. installs the server-based set of packages only
• F. allows both automatic and manual configuration of the network
• G. installs both the server-based and desktop-based package

Answer: BCD

Explanation: The graphical installer is officially known as the "Live Media." This means that Oracle Solaris can be booted into RAM, causing zero impact on your existing operating system. After it is loaded, you are free to experiment with Oracle Solaris to determine whether it is something you would like to install to your system.
You can download Oracle Solaris 11 Live Media for x86, which is an approximately 800 MB image file, and use a DVD burner to create the disk, or you can use the ISO image directly in a virtual machine or through the Oracle Integrated Lights Out Manager (ILOM) Remote Console.
The Live Media is not intended for long-term use. For example, any changes that you make
to the system are lost when the system is shut down. Therefore, the next logical step is to install Oracle Solaris on the system, which the Live Media makes easy by placing an Install Oracle Solaris icon right on the desktop. But before we head down that road, let's step back a bit and consider the installation options.
Note: The Live Media provides administrators with an opportunity to explore the Oracle Solaris 11 environment without installing it on a system. The system boots off the media directly allowing administrators to start the installer should they choose to install it to a system.

NEW QUESTION 12
View the exhibit to inspect the file system configuration on your server.

View the Exhibit to inspect the file system configuration on your server.
Your department's backup policy is to perform a full backup to a remote system disk on Saturday.
On Sunday through Friday, you are to perform a differential backup to the same remote system disk:
Following your company policy, which option describes a valid procedure for backing up the /data file system to a remote disk named /remote/backup?

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

Answer: C

NEW QUESTION 13
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: C

NEW QUESTION 14
When issuing the zonestat 2 1h is command, the following information is displayed:

Which two options accurately describe the statistics contained in the output?

• A. dbzone is using 0.21% of the total CPU resource available in the zone's processor set.
• B. dbzone is using 0.21% of the global zone's total CPU.
• C. dbzone is using 5.48% of the total physical memory that has been allocated to the zone.
• D. dbzone is using 2.37% of the global zone's total virtual memory.
• E. The network is being utilized 100% with no physical bandwidth remaining.

Answer: AC

Explanation: A: %PART
The amount of cpu used as a percentage of the total cpu in a processor-set to which the zone is bound. A zone can only have processes bound to multiple processor sets if it is the global zone, or if psrset(1m) psets are used. If multiple binding are found for a zone, it's
%PART is the fraction used of all bound psets. For [total] and [system], %PART is the percent used of all cpus on the system.
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.

NEW QUESTION 15
Before booting test zone a non-global zone, you want to connect to the zone’s console so that you can watch the boot process.
Choose the command used to connect to testzone’s console.

• A. zoneadm -C testzone
• B. zoneadm -console testzone
• C. zlogin - z testzone console
• D. zlogin - z testzone - C
• E. zlogin -C testzone
• F. zoneadm - testzone - c

Answer: E

Explanation: The following options are supported:
C
Connects to the zone console. Connects to the zone console.
Note:
After you install a zone, you must log in to the zone to complete its application environment. You might log in to the zone to perform administrative tasks as well. Unless the -C option is used to connect to the zone console, logging in to a zone
using zlogin starts a new task. A task cannot span two zones

NEW QUESTION 16
You log in to the system as user1, then switch user to root by using the su - command. After entering the correct password, yon enter the following commands:
whoami;who am i;id
Which option correctly represents the output?

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

Answer: B

Explanation: * The whoami utility displays your effective user ID as a name. Here this would be root.
* who am i
The command who shows who is logged on. Here this would be:
user1 console Dec 30 20:20
* The id utility displays the user and group names and numeric IDs, of the calling process, to the standard output. If the real and effective IDs are different, both are displayed, otherwise only the real ID is displayed.
Here this would be: uid=0(root) gid=0(root)
Note:
Each UNIX proces has 3 UIDs associated to it. Superuser privilege is UID=0.
Real UID
--------
This is the UID of the user/process that created THIS process. It can be changed only if the running process has EUID=0.
Effective UID
-------------
This UID is used to evaluate privileges of the process to perform a particular action. EUID can be change either to RUID, or SUID if EUID!=0. If EUID=0, it can be changed to anything.
Saved UID
---------
If the binary image file, that was launched has a Set-UID bit on, SUID will be the UID of the owner of the file. Otherwise, SUID will be the RUID.

NEW QUESTION 17
Which two options describe how to override the default boot behavior of an Oracle Solaris 11 SPARC system to boot the system to the single-user milestone?

• A. from the ok prompt, issue this command: boot -m milestone=single-user
• B. From the ok prompt, issue this command: boot -m milestone/single-user
• C. From the ok prompt, issue this command: boot -milestone=single-user
• D. From the ok promp
• E. issue this command:boot -s
• F. From from the ok prompt, issue this command:boot -m milestone=s

Answer: AD

Explanation: By default, Solaris will boot to the pseudo milestone “all” and start all services. This behaviour can be changed at boot time using either “-s” to reach single-user, or the new SMF option “-m milestone=XXX” (see kernel(1M) for a list of the bootable milestones) to select an explicit milestone.
Note: boot -s is the same as: boot -m milestone=single-user
with the difference being that the former is a lot less to type and is what most SysAdmins will be familiar with.

NEW QUESTION 18
After installing the OS, the following network configuration information is displayed from the system:

Which option describes the state of this server?

• A. The automatic network configuration option was chosen during the installation of the OS.
• B. The manual network configuration option was chosen during the installation of the OS.
• C. The network was not configured during the installation of the OS.
• D. The network interface is configured with a static IP address.

Answer: C

Explanation: Only the loopback addresses are configured. No IP address is configured.