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  1. Home
  2. Oracle Certification
  3. 1Z0-821 Exam
  4. Oracle.1Z0-821.v2024-03-21.q239 Dumps
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Question 46

You have been asked to troubleshoot the initial configuration of a virtual network connecting two local zones with the outside world.
View the exhibit.

The command
dladm create-vnic -1 vswitch192.168.1 vnic1
fails with the error
dladm: invalid link name 'vswitch192.168.1'
What is the reason for this error?

Correct Answer: E
Explanation/Reference:
Explanation:
There is no data-link named vswitch192.168.
We need to create an etherstub first.
See Note and example below for details.
Note: Create a VNIC in the system's global zone.
# dladm create-vnic -l data-link vnic-name
data-link is the name of the interface where the VNIC is to be configured.
-l link, --link=link
link can be a physical link or an etherstub.
vnic-name is the name that you want to give the VNIC.
For example, to create a VNIC named vnic0 on interface e1000g0, you would type the following:
# dladm create-vnic -l e1000g0 vnic0
Example: Creating a Virtual Network Without a Physical NIC
First, create an etherstub with name stub1:
# dladm create-etherstub stub1
Create two VNICs with names hello0 and test1 on the etherstub. This operation implicitly creates a virtual switch connecting hello0 and test1.
# dladm create-vnic -l stub1 hello0
# dladm create-vnic -l stub1 test1
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Question 47

How are operating system updates distributed in the Oracle Solaris 11 environment?

Correct Answer: C
* Updating all of the packages on your installed system - To update all of the packages on your system that have available updates, use the pkg update command, as follows:
# pkg update Running this command updates packages that you might not otherwise consider updating, for example, kernel components and other low-level system packages.
*Adding or updating individual packages - To add individual software packages, use the pkg install command. Any dependent packages are also updated at the same time.
*install package updates that deliver fixes- A pkg update operation might include bug fixes, so the operation is similar to applying a specific patch or patches in previous Oracle Solaris releases.
Note: The IPS interfaces first check for updates for currently installed packages before retrieving them via the network. By default, interfaces check repository catalogs in the following locations:
*The default installation repository at pkg.oracle.com/solaris/release.
*The support repository in My Oracle Support. This repository is restricted to users with Oracle Solaris 11 Express support contracts, and it contains packages with the latest bug fixes. For this reason, a support contract must be purchased for production deployments.
Reference: Updating the Software on Your Oracle Solaris 11 System
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Question 48

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?

Correct Answer: C
A 24-bit network mask is expressed as 255.255.255.0.
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Question 49

XJ 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?

Correct Answer: B
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___
Reference: Oracle Solaris Administration: Common Tasks, Displaying crontab Files
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Question 50

You have a process called bigscript, and you need to know the PID number for this process. Which command will provide that information?

Correct Answer: B
The ps command prints information about active processes. Without options, ps prints information about processes associated with the controlling terminal. The output contains only the process ID, terminal identifier, cumulative execution time, and the command name. Otherwise, the information that is displayed is controlled by the options.
Reference: man ps
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