Pass the RedHat RHCT RH033 Questions and answers with ExamsMirror

This command will search for files with a size of over 50 megabytes. The -size option tells find to search files according to the size of files, and

+50M will tell the find command to search files over 50 megabytes.

Answer option C is incorrect. This command will search for files with a size of exactly 50 megabytes.

Answer option B is incorrect. This command will search for files with a size of less than 50 megabytes.

Answer option D is incorrect. - must be prefixed with size, otherwise shell will not recognize this command, and display an error message.

The lpc command can be used to rearrange jobs awaiting printing, as well as to disable/enable a

printer or queue and find the status of printers.

Answer option D is incorrect. The lpr sends a job to the queue to be printed.

Answer option A is incorrect. The lpq views the contents of the queue.

Answer option C is incorrect. The lprm removes a job from the queue.

All these information are stored in the /etc/passwd file.

What is the /etc/passwd file?

In Linux operating systems, the /etc/passwd file lists information about each of the users that may login to the system. The file is so named because originally it also contained the data used to verify passwords. However, on

modern Unix systems, the security-sensitive password information is instead often stored in a different file using shadow passwords.

The /etc/passwd file typically has world-readable permissions, though it may only be edited by the

superuser or by using a few special purpose commands.

The first field is the user name. Each record in the file must have a unique user name field.

The second field stores information used to confirm a user's password; however, in most modern uses, this field is usually set to "x" (or some other indicator) with the actual password information being stored in a separate shadow password file.

The third field is the user identifier, the number that the operating system uses for internal purposes. It does not have to be unique.

The fourth field is the group identifier. This number identifies the primary group of the user; all files that are created by this user will initially belong to this group.

Reserved gecos ID (Typically, this is a set of comma-separated values including the user's full name

and contact details).

The sixth field is the path to the user's home directory.

The seventh field is the shell program that is started every time the user logs into the system.

Answer option C is incorrect. The shadow password is stored in the /etc/shadow file.

What is /etc/shadow file?

The /etc/shadow file stores the account information in the following format:

According to the question, the permission set requires setting SID with the owner and the group.

Moreover, the Read, Write, and Execute permissions on the script file are required for the owner, Read and Execute permissions for the group, and Read permission for others.

The chmod command is used to change the permissions. The last three digits, i.e., 754 will provide the required permissions to the owner, group, and others. The digit 7 will provide the Read, Write, and Execute permissions to the owner.

The digit 5 will provide the Read and

Execute permissions to the group. The digit 4 will provide the Read permission to others.

According to the question, you have to set SID for the owner and users. For the owner (SUID), you will have to add 4 as a prefix to the permission number. For the group (SGID), you will have to add 2 as a prefix to it. For setting both the

SIDs (SUID and SGID), you will have to add 6 as a prefix to the permission set. Hence, in order to accomplish the task, you will have to run the following command:

chmod 6754

This will set the SID for the owner and group on the permission set of the lf.cgi script file. When SID is set, the Execute permission symbol x is replaced with s.

The env command is used to list the environment variables that are set on a Linux computer.

The programs that run on a Linux computer are known as processes. When a user starts a program, a new process is created. This process runs within what is called an environment. A user can set parameters in this environment so that the running program can find the desired values. The following syntax is used to set a parameter to a variable:

VARIABLE=value

This would set a parameter by the name VARIABLE with the value that you provide. Some of the commonly used environment variables are HOME, PATH, PS1, etc.

Answer option B is incorrect. The rm command is used to delete files from a directory on a Linux computer.

Answer option C is incorrect. The ls command is used to list files on a Linux computer.

Answer option D is incorrect. The echo $shell command will provide the name of the current shell that a user is using.

In order to accomplish the task, you should create a recurring CRON job to delete the temporary files on the server.

Since John wants to use the variable VAR1 as an environmental variable, he will use the export command to accomplish the task.

The Evolution and Mozilla are the Graphical Mail clients in Red Hat Enterprise Linux.

According to the scenario, the S status message shows that the process id 24224 is in sleeping status.

The ps -aux command reports the status of processes currently running on a Linux computer. It shows the following status messages:

This is the correct syntax for granting ownership of foofile to John.

What is the chown command?

The chown command is used to change the ownership of a file. Only root can change the ownership of a file. The chown command can be used with the -R option to recursively change the ownership of an entire directory tree.

Syntax:

chown [-R] newowner filename

Answer option B is incorrect. The chmod command is used to change access mode for files and directories.

Answer option D is incorrect. The syntax of this command is not correct. With chown, first write the name of the user whom you want to give ownership, then write the filename of the file whose ownership you want to change.

Answer option C is incorrect. The chgrp command is used to change Group-ownership not file ownership.