Red Hat RH033 Online Practice Questions and Exam Preparation

Red Hat RH033 Online Questions & Answers

• Question 11:

  John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based network. John is working as a root user on the Linux operating system. He wants to change the group membership of the file foo to group bar. Which of the following commands will he use to accomplish the task?

  A. chgrp foo bar
  B. chgroup bar foo
  C. chgrp bar foo
  D. chgroup foo bar
  C. chgrp bar foo

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  Explanation/Reference:

  According to the scenario, John will use the chgrp bar foo command to accomplish the task. The chgrp (from change group) command is used by unprivileged users to change the group associated with a file. Unlike the chown command,

  chgrp allows regular users to change groups, but only to one of which they are a member. The general syntax of the chgrp command is as follows:

  chgrp group target1 [target2 ..]

  The group parameter indicates the new group with which the targets should be associated. The target1 parameter indicates the files or directories for which the change should be made.

  The target2 parameter indicates the optional additional files or directories for which the change should be made.

  For example:

  The above command changes the group associated with ttt to 'system', provided the executing user is a member of that group.

  Answer option A is incorrect. In the chgrp command, first we write the group name and after that, we write the file name. But here just the opposite is written, so this command will not give the desired result.

  Answer options D and B are incorrect. There is no such command as chgroup in Linux.

• Question 12:

  Which of the following commands is used to append the list of files in the /tmp directory to an existing file named deletelater.txt?

  A. ls /tmp > deletelater.txt
  B. ls deletelater.txt /tmp
  C. ls /tmp deletelater.txt
  D. ls /tmp >> deletelater.txt
  D. ls /tmp >> deletelater.txt

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  Explanation/Reference:

  The ls command is used to list files on a Linux computer. The syntax of the ls command is as follows:

  ls [option] [directory name]

  Several options are used with the ls command. Following is a list of some important options:

  

  For example, the following command displays all the files (including hidden files) in the /home directory and the contents in the subdirectories:

  What is >> command?

  The >> command is used for storing the output generated by different commands. It creates a file specified to store the output. If the specified file already exists, it appends that file.

  Answer option A is incorrect. The > command is used for storing the output generated by different commands. It creates a file specified to store the output. If the specified file already exists, it overwrites that file.

  Answer options C and B are incorrect. Improper syntax has been followed in these answer options.

• Question 13:

  You work as the Network Administrator for McNeil Inc. The company has a Linux-based Network.

  You are a root user on the Red Hat operating system. You see the following permissions on a file:

  -rwxr----

  What operations can be performed on the file?

  Each correct answer represents a complete solution. Choose two.

  A. The file can be read by its owner.
  B. The file cannot be read by its owner.
  C. The file can be read by any user.
  D. The file can be read by its owner and member of its owning group.
  A. The file can be read by its owner.
  D. The file can be read by its owner and member of its owning group.

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  Explanation/Reference:

  The read permission has been assigned to the owner of the file and the read permission has also been assigned to members of its owing group. The first field - represents the type of a file and the next three characters (rwx) represent the

  permission given to the owner of the file then the next three characters (r--) represent the permission given to the group to which the file belongs and the last three characters (--- ) represent the permission given to others.

  Answer option C is incorrect. No permission has been assigned to others users.

• Question 14:

  Which of the following commands are used to put (paste) data from a buffer into a document in vim?

  Each correct answer represents a complete solution. Choose two.

  A. set
  B. Pp
  C. P
  D. ps
  B. Pp
  C. P

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  Explanation/Reference:

  The commands to put data from a buffer into the document are p and P. p puts the data below the current line and P puts the data above the current line.

  What is the p command?

  The p command is used to put (paste) data from a buffer into the document. If data is line oriented

  (a line or a paragraph), the p command will open a new line below the current line and place the data on this line. If data is character oriented (a letter, word, or sentence), the p command will place the data after the cursor.

  What is the P command?

  The P command is used to put data from a buffer into a document. How this command works depends on the nature of the data in the buffer. If the data is line oriented, the P command will open a new a line above the current line and paste

  the data there. If the data is character oriented, the P command will put the data before the cursor. Answer option D is incorrect. The ps command displays the status of the current processes in Linux. Answer option A is incorrect. The :set

  command lists a small number of important configuration items in vim.

• Question 15:

  You work as a Network Administrator for Net World International. You have installed a Linux server on the company's network. Users report that they are unable to write on a file system. You verify that there is no free space available on the hard disk drive. You mount another hard disk drive to resolve the issue. How will you prevent the issue from happening again?

  A. Dedicate a hard disk drive for users to save their files.
  B. Ask users to save only those files that are important.
  C. Track the amount of free space on the hard disk.
  D. Increase the amount of RAM on the server.
  C. Track the amount of free space on the hard disk.

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  Explanation/Reference:

  If there is no free space on the hard disk drive, users will not be able to write on it. To prevent this issue from happening again, you should track the amount of free space on the hard disk. By doing so, you can take necessary actions before

  the actual problem arises. Answer option B is incorrect. Even if users save their important files, the hard disk drive will still become full sooner or later.

  Answer option A is incorrect. Dedicating a hard disk drive for users to save their files will not prevent the drive from becoming full.

  Answer option D is incorrect. The shortage of RAM is not the issue in this scenario.

• Question 16:

  You work as a Network Administrator for company.com Inc. You have created a PostScript file by using a program. You want to convert it to a PDF file. Which of the following commands will you use to accomplish the task?

  A. ps2pdf
  B. enscript
  C. pdf2ps
  D. a2ps
  A. ps2pdf

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  Explanation/Reference:

  The ps2pdf utility is used to create PDF files. Therefore, in the above scenario, you will use ps2pdf command to accomplish the task.

  Answer option C is incorrect. The pdf2ps utility converts PDF files to PostScript. Answer options B and D are incorrect. enscript and a2ps commands convert text to PostScript and send it to the print queue.

• Question 17:

  You work as the Network Administrator for McNeil Inc. The company has a Linux-based network.

  You are working as a root user on the Linux operating system. Some employees have been recently appointed in your company. You have to add these users in your network. Which of the following tools should you use to accomplish this task?

  Each correct answer represents a complete solution. Choose two.

  A. useradd
  B. userdel
  C. adduser
  D. usermod
  A. useradd
  C. adduser

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  Explanation/Reference:

  The useradd or adduser command is used to add a user on the Linux operating system.

• Question 18:

  You work as a Network Administrator for company.com Inc. The company has a Linux- based network. You are working as a root user on the Linux operating system. You want to rearrange the order of jobs in a spooling queue according to your requirement. Which of the following commands will you use to accomplish the task?

  A. lpq
  B. lpc
  C. lprm
  D. lpr
  B. lpc

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  Explanation/Reference:

  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.

• Question 19:

  John works as the Network Technician for Tech Perfect Inc. The company has a Linux- based network.

  John wants to view a PDF document on his Linux system. Which of the following commands should John use to accomplish the task?

  A. ps2pdf
  B. enscript
  C. evince
  D. a2ps
  C. evince

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  Explanation/Reference:

  The evince utility is used to view PDF files on the Linux operating system.

  What is the evince command?

  The evince command is a document viewer capable of displaying multiple and single page document formats such as PDF and Postscript.

  Syntax:

  

  evince [Options] [Filename]

  Answer options B and D are incorrect. These commands are used to convert a text to PostScript and send it to a file or the print queue.

  What is PostScript?

  PostScript is a language developed by Adobe Systems for printing documents on laser printers. It can also be adapted to produce images on other types of devices. It is the standard for desktop publishing. Every PostScript printer contains a

  built-in interpreter that executes PostScript instructions. Level 1, Level 2, and PostScript 3 are three basic versions of PostScript language.

  Answer option A is incorrect. The ps2pdf utility is used to create PDF files.

• Question 20:

  You are a newly appointed network technician at Net Perfect Inc. The company has a Linux-based network. You want to install a package named firefox on your Linux system. Which of the following commands will you use to accomplish the task?

  A. yum update firefox
  B. yum i firefox
  C. yum install firefox
  D. yum -ivh firefox
  C. yum install firefox

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  Explanation/Reference:

  You will use the yum install firefox command to install the package named firefox in the Linux system. This command will search the configured repositories for the package named firefox, and if found, will install the latest version, pulling in

  dependencies if needed. Answer options B and D are incorrect. The -ivh and i options are not used with the yum command.

  Answer option A is incorrect. The yum update firefox command is used to update a package in the Linux system. It is not used to install a package in Linux. If run without any specified package, the update option will update every currently

  installed package. If one or more packages are specified, yum will only update the listed packages. While updating packages, yum will ensure that all dependencies are satisfied.