Linux essentials exam answers

Linux Essentials – Chapter 01 Exam Answers 2019 + PDF file

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1. One of the jobs of the kernel is to:
   • Transfer mail from one machine to another
   • Manage the system’s resources*
   • Load the operating system after the computer is turned on
   • Turn source code into machine code
2. Unix is: (choose two)
   • A distribution of Linux
   • A trademark*
   • A text editor
   • An operating system*
   • A type of hardware
3. Linux is written in:
   • C *
   • .NET
   • Java
   • Perl
   • C++
4. Source code refers to:
   • The interface that software uses to talk to the kernel
   • The license that dictates how you may use and share the software
   • The version of a program that the computer runs on the CPU
   • A human readable version of computer software*
5. Open source means: (choose two)
   • You must support the software you share
   • You can view the software’s source code*
   • You cannot charge anything for the software
   • You must share your changes
   • You can modify the software’s source code*
6. Most of the tools that are part of Linux systems come from:
   • Google
   • Red Hat and Debian
   • The Open Source Initiative
   • The Linux foundation
   • The GNU project*
7. The Linux platform that runs on mobile phones is called:
   • IOS
   • Teldroid
   • LinuxMobile
   • Android*
   • MicroLinux
8. What does a distribution provide to add and remove software from the system?
   • Bash
   • Application Programming Interface (API)
   • Partitioning tool
   • Package manager*
   • Compiler
9. The bootloader’s job is to:
   • Load the application into memory
   • Assign initial settings such as network address
   • Install software from the Internet or removable media
   • Perform the initial installation of the kernel to hard drive
   • Load the kernel after the computer is powered on*
10. UNIX was originally invented at:
    • Stanford University
    • AT&T Bell Labs*
    • Berkeley University
    • Xerox PARC
    • Bangalore University
11. A license where you don’t have access to the source code is called:
    • Impaired source
    • Closed source*
    • Open source
    • Sourceless
12. Which distributions are made by, or clones of, Red Hat? (choose two)
    • Fedora*
    • Ubuntu
    • Slackware
    • Debian
    • CentOS*
13. Ubuntu is derived from which distribution?
    • Scientific Linux
    • Slackware
    • Fedora
    • Debian*
    • Red Hat Enterprise Linux
14. Open source licenses differ, but generally agree that: (choose two)
    • You must redistribute your changes
    • You are not allowed to sell the software
    • You should be able modify the software as you wish*
    • You should have access to the source code of software*
15. Applications make requests to the kernel and receive resources, such as memory, CPU, and disk in return.
    True or False?

• True*
• False

• What the computer will do*
• The licensing model of the operating system
• The operating system’s mascot
• How much performance is needed
• Whether or not it is cloud-friendly

• It’s not good enough
• It’s free
• It’s not made by the Open Group
• There are too many distributions
• It hasn’t undergone certification*

• Is always 6 months
• Doesn’t matter in an Open Source environment
• Describes how long the software will be supported for
• Describes how often updates to the software come out*
• Only applies to software you pay for

• Should be long so that you have time before you need to upgrade
• Only has meaning for paid software
• Should be short so you always have the freshest releases
• Describes how often updates for software come out
• Describes how long a version of software will be supported*

• True*
• False

• It still supports old file formats or applications*
• It can be upgraded without downtime
• If the next version still works the same way
• It works across Linux/Mac/Windows
• People still use old versions

• Derived from Linux
• Only compatible with Apple hardware*
• Primarily used to manage network services
• Certified as UNIX compatible*
• Derived from FreeBSD*
• Able to natively run Windows binaries

• Has a new desktop version every year.
• Has a short maintenance cycle
• Comes in desktop and server variants*
• Has built in virtualization*
• Has a Linux compatibility mode
• Has powerful scripting capabilities*

• Are tied to their vendor’s hardware*
• Do not run the GNU tools
• Are UNIX certified*
• Are almost obsolete
• Use completely different commands than Linux

• Which management tools are provided by the distribution*
• Whether or not the distribution is under active development*
• The maintenance cycle of the distribution*
• Popularity on social media.
• If you need support on the distribution itself*
• Which distributions are supported by the software you need to run*

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NDG Linux Essentials 2.0 Midterm Exam (Chapter 1-9) Answers

NDG Linux Essentials 2.0 Midterm Exam (Chapter 1-9) Answers

The most popular Linux platform for mobile phones is:

The release cycle:

• Only has meaning for paid software
• Describes how long software will be supported
• Should be long so that you have time before you need to upgrade
• Should be short so you always have the freshest releases
• Dictates how often software is updated

What does a distribution provide to add and remove software from the system?

• Package Manager
• Application Programming Interface (API)
• Partitioning tool
• Compiler
• Bash

A maintenance cycle:

• Describes how often updates for software come out
• Should be short so you always have the freshest releases
• Describes how long a version of software will be supported
• Only has meaning for paid software
• Should be long so that you have time before you need to upgrade

When choosing a distribution of Linux, you should consider:

(choose five)

• Popularity on social media
• Does the distribution offer a “stable” version
• Does your organization require long-term support for the system
• If the application software is supported by the distribution
• Will users require a GUI
• Will commercial support be required for the OS

Which of the following are examples of desktop software?

(choose two)

Which of the following pieces of software deal with file sharing?

(choose three)

The Linux shell:

(choose three)

• Is responsible for tracking the location of configuration files
• Has a scripting language
• Has a built-in text editor
• Is customizable
• Allows you to launch programs

Virtualization means:

• Many users can share one hard drive
• A user can connect to a server over the network and use a virtual console
• A machine can swap memory to disk
• A single host can be split up into multiple guests
• Two users get different memory spaces on the same machine

In graphical mode, you can get to a shell by running which applications?

(choose two)

Source code refers to:

• A human-readable version of computer software
• The interface that software uses to talk to the kernel
• The version of a program that the computer runs on the CPU
• The license that dictates how you may use and share the software

Open source means:

(choose two)

• You can modify the software’s source code
• You must share your changes
• You must support the software you share
• You cannot charge anything for the software
• You can view the software’s source code

A copyleft provision in a software license means:

• You give up your copyright to the software
• You may not link against third party closed source software
• You must provide support for your modifications
• You must provide free copies of the software if you use it
• If you redistribute the software, you must distribute the source to any changes you make

Linux is distributed under which license?

Creative Commons licenses allow you to:

(choose three)

• Receive royalties on the use of the work
• Allow or disallow commercial use
• Specify whether or not people may distribute changes
• Get a veto on where the work is used
• Specify whether or not changes must be shared

Which environment variable contains a list of directories that is searched for commands to execute?

Select the command that can report the location of a command:

A pair of double quotes ( » ) will prevent the shell from interpreting any metacharacter.

True or False?

The shell program interprets the commands you type into the terminal into instructions that the Linux operating system can execute.

True or False?

The acronym CLI stands for:

• Command Line Interface
• Computer Link Interpreter
• Command Line Interpreter
• Computer Line Interface

The most common shell used for Linux distributions is the ________ shell.

Which two pager commands are used by the man command to control movement within the document?

(choose two)

To search the man page sections for the keyword example, which of the following command lines could you execute?

(choose two)

The statement that describes the difference between a man page and an info page is:

• The man page is a long detailed reference; the info page is very terse.
• There is very little difference between them.
• The man page is like a guide; the info page is a more concise reference.
• The info page is like a guide; a man page is a more concise reference.

The following sections commonly appear on a man page:

(choose three)

The top-level directory on a Linux system is represented as:

The tilde ( ~ ) is used to represent:

• Nothing; it has no special meaning
• Any two single characters
• The directory above the current working directory
• A user’s home directory

The cd command by itself will take you to what directory?

• The directory above the current working directory
• None; it is not a valid command
• Your home directory
• The system root directory

What command will allow you to change your current working directory?

The first character in a long listing ( ls -l ) indicates:

• If something is a file, directory, or symbolic link
• The size
• The permissions
• The owner

Which of the following commands can be used to rename a file?

The touch command can be used to:

(choose two)

• Change ownership of a file
• Create new files
• Change a file’s name
• Update the timestamp of existing files

Which of the following are glob characters?

(choose three)

• The question mark “?”
• The dash character “-“
• The square brackets “[” and “]”
• The asterisk “*”

The main purpose of using glob characters is to be able to provide a list of filenames to a command.

True or False?

The asterisk character is used to represent zero or more of any character in a filename.

True or False?

Compression of a file works by:

• Removing the high order bit from each byte
• Eliminating gaps within the file
• Storing most of the data on removable media and just leaving a pointer
• Removing redundant information
• Consolidating multiple files into one

Lossy compression:

(choose three)

• Usually results better compression than lossless
• Is often used with images
• Sacrifices some quality
• Is often used with documents
• Decompresses to an identical version as the original

Which of the following commands can be used to compress a file?

(choose three)

The three main modes of tar are:

(choose three)

In the command tar -czf foo.tar.gz bar , what is the purpose of the f flag?

• Tells tar to write to the file that follows the flag
• Tells tar to print the name of each file as it is processed
• Tells tar to read from the file that follows the flag
• Specifies extra compression is to be used
• Tells tar to copy only files, and not directories

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