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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 61

Your server has a ZFS storage pool that is configured as follows:

The following partition scheme is used for every disk drive in pool1:

Which two are true regarding the ZFS storage pool?

Correct Answer: B,D
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Question 62

You are having an issue with the shutdown command. You wish to determine if the file is a script or an executable program. Which command would you use to determine this?

Correct Answer: B
The file command determines the file type. file tests each argument in an attempt to classify it. There are three sets of tests, performed in this order: filesystem tests, magic tests, and language tests. The first test that succeeds causes the file type to be printed.
Reference: man file
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Question 63

User jack makes use of the bash shell; his home directory is/export/home/jack.
What is the correct setting of umask, and where should it be set, to allow jack to create a shell script using the vi editor, that is executable by default?

Correct Answer: B
The user file-creation mode mask (umask) is use to determine the file permission for newly created files. It can be used to control the default file permission for new files. It is a four-digit octal number.
You can setup umask in /etc/bashrc or /etc/profile file for all users. By default most Unix distro set it to 0022 (022) or 0002 (002).
1. The default umask 002 used for normal user. With this mask default directory permissions are 775 and default file permissions are 664.
2. The default umask for the root user is 022 result into default directory permissions are 755 and default file permissions are 644.
3. For directories, the base permissions are (rwxrwxrwx) 0777 and for files they are 0666 (rw-rw-rw).
In short,
1. A umask of 022 allows only you to write data, but anyone can read data.
2. A umask of 077 is good for a completely private system. No other user can read or write your data if umask is set to 077.
3. A umask of 002 is good when you share data with other users in the same group. Members of your group can create and modify data files; those outside your group can read data file, but cannot modify it. Set your umask to 007 to completely exclude users who are not group members.
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Question 64

The default publisher on your system is:

You want to update the Oracle Solaris 11 environment on your system, but you are not able to connect this system to the Internet to access the default Oracle repository. A repository has been created on your local network and is named http://server1.example.com.
Which command would you choose to connect your system to the local repository?

Correct Answer: D
Explanation/Reference:
Explanation:
Solaris 11 Express makes it pretty easy to set up a local copy of the repository.
A common reason folks need access to a local repository is because their system is not connected to the Internet.
Tthe pkg set-publisher command can be used to for example add a publisher or to enable or disable a publisher.
Note: Example Adding a Publisher
Use the -g option to specify the publisher origin URI.
# pkg set-publisher -g http://pkg.example.com/release example.com
Example Specifying the Preferred Publisher
Use the -P option to specify a publisher as the preferred publisher. The specified publisher moves to the top of the search order. You can specify the -P option when you add a publisher or you can modify an existing publisher.
# pkg set-publisher -P example.com
Example Enabling or Disabling a Publisher
Use the -d option to disable a publisher. The preferred publisher cannot be disabled. A disabled publisher is not used in package operations such as list and install. You can modify the properties of a disabled publishers.
Use the -e option to enable a publisher.
# pkg set-publisher -d example2.com
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Question 65

Subnets are created by using________.

Correct Answer: B
Explanation/Reference:
Explanation:
The process of subnetting involves the separation of the network and subnet portion of an address from the host identifier. This is performed by a bitwise AND operation between the IP address and the (sub) network prefix. The result yields the network address or prefix, and the remainder is the host identifier.
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.
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