Question 1

A system administrator is selecting an operating system for use by the company's research and development team. The team requires an OS that can be easily modified and changed to meet its particular requirements.  
Which of the following operating systems will be the best choice for the users?
A) Windows 10 Enterprise
B) Mac OS X
C) Linux
D) Windows 7 Professional

Accepted Answer

Linux is an open-source operating system, which means it can be easily modified and customized to meet specific requirements, making it ideal for a research and development team.

Question 2

A technician is logged in to a Linux computer as johnd and needs to reset group ownership for the file report.txt in the johnd home directory.  
Which of the following commands will perform this function?
A) cd
B) ps
C) chown
D) clear

Accepted Answer

The `chown` command in Linux is used to change the ownership of files and directories, including group ownership.

Question 3

In Linux, where are the commands required for system administration stored?
A) /bin
B) /usr
C) /opt
D) /sbin

Accepted Answer

The /sbin directory contains essential system administration commands that are used by the system administrator for system maintenance and management tasks.

Question 4

A user is complaining about sluggish performance on her Linux system, and the technician suspects a running process is consuming excessive processor resources.  
Which of the following commands will the technician most likely use to locate the offending process?
A) dd
B) kill
C) ps
D) vi

Accepted Answer

The 'ps' command is used to display information about active processes, which can help identify any process consuming excessive resources.

Question 5

A Mac computer is reporting problems with the HDD, and the user wants to run a check for errors.   
Which of the following is a disk management tool built into macOS that is useful for finding and repairing disk problems?
A) macOS Recovery
B) First Aid
C) Time Machine
D) grep

Accepted Answer

First Aid is a feature within the Disk Utility application in macOS that is used to check for and repair disk errors.

Question 6

Which of the following describes the macOS feature that lets you use finger motions to perform functions, for example, spreading two fingers to zoom in?
A) Gestures
B) Snapshots
C) Spotlight
D) Finder

Accepted Answer

Gestures in macOS allow users to perform various functions using finger motions on a trackpad, such as spreading two fingers to zoom in.

Question 7

A technician is logged in to a Linux system with a user account that has been assigned root privileges. Each time the technician attempts to run a specific terminal command, a "Permission denied" message is displayed.   
What is the most likely reason for this message?
A) The software repository is out of date and needs to be updated.
B) The command syntax needs to be verified.
C) The user account is not assigned a password.
D) The command needs to be preceded by sudo.

Accepted Answer

The "Permission denied" message indicates that the command requires elevated privileges. Preceding the command with "sudo" allows the technician to execute it with root privileges.

Question 8

What is the term used to designate that a particular operating system will no longer be supported by its manufacturer or managing entity?
A) Distro
B) End-of-life
C) Force Quit
D) Forced kill

Accepted Answer

End-of-life (EOL) is the term used to designate that a particular operating system will no longer be supported by its manufacturer or managing entity.

Question 9

Which of the following are natively supported by the Windows, Mac, and Linux operating systems?
A) Support for reading and writing to APFS volumes
B) Support for reading and writing to NTFS partitions
C) Support for reading and writing to ext4 volumes
D) Support for reading and writing to FAT32 partitions

Accepted Answer

FAT32 is a file system that is natively supported for reading and writing by Windows, Mac, and Linux operating systems, making it a common choice for cross-platform compatibility.

Question 10

A Linux user needs to find all instances of the word admin in /var/log/auth.log.  
Which of the following commands will perform this function?
A) grep
B) ls
C) rm
D) cp
E) apt-get

Accepted Answer

The `grep` command is used to search for specific patterns within files, making it suitable for finding instances of the word "admin" in the specified log file.

Question 11

Which of the following is a major advantage to using SSH over Telnet for remotely accessing a Linux system?
A) Telnet does not have a common TCP port assignment, SSH does.
B) SSH uses much less bandwidth to perform the same functions as Telnet.
C) SSH is a secure, encrypted alternative to Telnet.
D) Telnet is not available for use by Linux systems.

Accepted Answer

SSH provides a secure, encrypted connection for remote access, unlike Telnet, which transmits data in plaintext, making it vulnerable to interception.

Question 12

Which of the following best describes a variable when implemented in a script?
A) A portion of a script that executes multiple times until a condition is met.
B) A container for storing data values that can be assigned, referenced, and manipulated.
C) A line or portion of a script that the interpreter does not process.
D) The part of a filename used to designate a file's association with a particular script language.

Accepted Answer

A variable is a container for storing data values that can be assigned, referenced, and manipulated within a script.

Question 13

A technician needs to boot macOS over the network using an image stored on a server.  
What Apple technology will best assist the technician?
A) Swap partition
B) NetBoot
C) HFS+
D) Key Chain

Accepted Answer

NetBoot allows a Mac to boot over the network using an image stored on a server.

Question 14

A technician wants to use a Time Machine backup to install a new copy of the macOS onto a Mac.   
Which of the following tools will the technician use to perform this task?
A) Disk Utility
B) Boot Camp
C) macOS Recovery
D) Mission Control

Accepted Answer

macOS Recovery is the tool used to restore a Mac from a Time Machine backup, allowing the installation of a new copy of macOS.

Question 15

How can you eliminate the need to open a dedicated TCP port on your corporate firewall when using Mac computers to share screens from the local and remote computers?
A) Use a third-party remote access app that uses a browser.
B) Enable Remote Disc on both computers.
C) Disable encryption on both ends of the Screen Sharing session.
D) Enable the Screen Sharing service in the Sharing window.

Accepted Answer

Using a third-party remote access app that operates through a web browser can bypass the need for opening a dedicated TCP port, as it typically uses standard web ports that are already open for internet traffic.

Question 16

A Mac user wants to update macOS and is searching Apple.com to locate update files.  
How are macOS updates typically obtained?
A) Updates are found in the App Store.
B) macOS does not require or utilize updates.
C) Updates are downloaded through Time Machine.
D) A manual update of macOS is not possible.

Accepted Answer

macOS updates are typically obtained through the App Store or System Preferences, where users can download and install the latest updates for their operating system.

Question 17

Which of the following is the current Linux file system used to hold the operating system?
A) APFS
B) ext3 ​
C) NTFS
D) ext4 ​

Accepted Answer

ext4 is the current and most commonly used Linux file system for holding the operating system, succeeding ext3.

Question 18

You opened a batch file in Notepad and are observing the following lines. (The line numbers are for reference only.)  
1-ECHO This batch file deletes the temp files
2- DEL %TEMP%\*.* /Q
3-REM The temp files were deleted
4-PAUSE
Which of the lines is a comment?
A) Line 1
B) Line 2
C) Line 3
D) Line 4
E) There are no comments in this file.

Accepted Answer

Line 3 is a comment because it starts with "REM", which is used to add comments in batch files.

Question 19

What is the value of X and what is the condition of the Do…Loop when execution ends in the following pseudo code?  
X = 1
Do
                ' This is a comment
                Print X;
Loop
A) X = 1, the Do…Loop is endless.
B) X = 1, the Do…Loop is not endless.
C) X = 0, the Do…Loop is endless.
D) X = 0, the Do…Loop is not endless.

Accepted Answer

The value of X remains 1 as it is never modified, and the Do…Loop is endless because there is no exit condition.

Question 20

What is the value of X when execution ends in the following pseudocode?  
Set X As Integer
For X = 100 to 0 Step -1
               ' This is a comment
Next X
X = 100
A) 0
B) 100
C) 1
D) -1

Accepted Answer

The loop decrements X from 100 to 0, but after the loop ends, X is explicitly set to 100.

Quiz 10: Macos, Linux, and Scripting

A system administrator is selecting an operating system for use by the company's research and development team. The team requires an OS that can be easily modified and changed to meet its particular requirements. Which of the following operating systems will be the best choice for the users?

A technician is logged in to a Linux computer as johnd and needs to reset group ownership for the file report.txt in the johnd home directory. Which of the following commands will perform this function?

In Linux, where are the commands required for system administration stored?

A user is complaining about sluggish performance on her Linux system, and the technician suspects a running process is consuming excessive processor resources. Which of the following commands will the technician most likely use to locate the offending process?

A Mac computer is reporting problems with the HDD, and the user wants to run a check for errors. Which of the following is a disk management tool built into macOS that is useful for finding and repairing disk problems?

Which of the following describes the macOS feature that lets you use finger motions to perform functions, for example, spreading two fingers to zoom in?

A technician is logged in to a Linux system with a user account that has been assigned root privileges. Each time the technician attempts to run a specific terminal command, a "Permission denied" message is displayed. What is the most likely reason for this message?

What is the term used to designate that a particular operating system will no longer be supported by its manufacturer or managing entity?

Which of the following are natively supported by the Windows, Mac, and Linux operating systems?

A Linux user needs to find all instances of the word admin in /var/log/auth.log. Which of the following commands will perform this function?

Which of the following is a major advantage to using SSH over Telnet for remotely accessing a Linux system?

Which of the following best describes a variable when implemented in a script?

A technician needs to boot macOS over the network using an image stored on a server. What Apple technology will best assist the technician?

A technician wants to use a Time Machine backup to install a new copy of the macOS onto a Mac. Which of the following tools will the technician use to perform this task?

How can you eliminate the need to open a dedicated TCP port on your corporate firewall when using Mac computers to share screens from the local and remote computers?

A Mac user wants to update macOS and is searching Apple.com to locate update files. How are macOS updates typically obtained?

Which of the following is the current Linux file system used to hold the operating system?

You opened a batch file in Notepad and are observing the following lines. (The line numbers are for reference only.) 1-ECHO This batch file deletes the temp files 2- DEL %TEMP%\. /Q 3-REM The temp files were deleted 4-PAUSE Which of the lines is a comment?

What is the value of X and what is the condition of the Do…Loop when execution ends in the following pseudo code? X = 1 Do ' This is a comment Print X; Loop

What is the value of X when execution ends in the following pseudocode? Set X As Integer For X = 100 to 0 Step -1 ' This is a comment Next X X = 100