Open Source Systems
Pre-Test Questions
Course Introduction
Open Source Systems explores the principles, practices, and applications of open source software development. The course covers the history and significance of open source, governance models, licensing, and community-driven innovation. Students will gain hands-on experience with open source tools, contribute to real-world projects, and analyze the social, legal, and economic impact of open source ecosystems. Emphasis is placed on collaboration, version control, and the skills required to actively participate in global open source communities.
Recommended Textbook Linux+ Guide to Linux Certification 3rd Edition by Jason Eckert
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14 Chapters
630 Verified Questions
630 Flashcards
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Page 2
Chapter 1: Introduction to Linux
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Sample Questions
Q1) A(n) ____ service provides an efficient method for transferring files over the Internet.
A) FTP
B) DNS
C) Web
D) Mail
Answer: A
Q2) Linux is based on the Windows operating system.
A)True
B)False
Answer: False
Q3) A(n) ____________________ is a computer or special hardware device that provides interconnection between company networks, home networks, and institutional networks.
Answer: router
Q4) Open Source Software (OSS) is freely developed and continuously improved by a large community of software developers.
A)True
B)False
Answer: True
Page 3
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Chapter 2: Linux Installation and Usage
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Sample Questions
Q1) A swap partition contains a filesystem.
A)True
B)False
Answer: False
Q2) Because you need to document so many pieces of hardware and software information, you should create a ____ that contains all important installation information as well as hardware information.
A) preinstallation checklist
B) hardware compatibility checklist
C) software components list
D) minimum hardware requirements list
Answer: A
Q3) In Linux, the command ____________________ displays currently logged-in users.
Answer: who
Q4) The ____ directory contains system commands and utilities.
A) /opt
B) /var
C) /boot
D) /usr
Answer: D
Page 4
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Chapter 3: Exploring Linux Filesystems
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Sample Questions
Q1) Displays lines of text that match extended regular expressions.
A)log file
B)tac command
C)directory
D)named pipe
E)egrep command
F)socket file
G)head command
H)special device file
I)linked files
Answer: E
Q2) The file .file.dat is an example of a(n) ____________________ file.
Answer: hidden
Q3) Using wildcard metacharacters, how can one indicate a number is either 1, 2, 3, or 4?
A) 1-4
B) [1-4]
C) [1234]
D) [1,2,3,4]
Answer: B
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Page 5
Chapter 4: Linux Filesystem Management
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Sample Questions
Q1) To move files, you can use the mv command.
A)True
B)False
Q2) The PATH variable lists directories that are searched for executable files if a relative or absolute pathname was not specified when executing a command on the command line.
A)True
B)False
Q3) The chgrp command takes ____ argument(s) at minimum.
A) one
B) two
C) three
D) four
Q4) How does the execute permission apply to a directory?
Q5) You can see the contents of a certain variable in memory by using the ____ metacharacter with the echo command.
A) $
B) *
C) &
D) #
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Chapter 5: Linux Filesystem Administration
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Sample Questions
Q1) The ____ device file represents the second serial port on the system (COM2).
A) /dev/ttyS0
B) /dev/tty2
C) /dev/tty1
D) /dev/ttyS1
Q2) Creating a filesystem on a device is commonly referred to as ____________________.
Q3) What are character devices and block devices? What is the difference between them? What types of devices are represented by block device files?
Q4) Errors on a filesystem are often referred to as filesystem ____ and are common on most filesystems.
A) breaks
B) corruption
C) degradation
D) failures
Q5) If you find a corrupted device file, or accidentally delete a device file, the ____________________ command can be used to re-create the device file if you know the type, major, and minor numbers.
Q6) Each track on a hard disk is divided into ____________________ of information.
Page 7
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Chapter 6: Advanced Installation
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Sample Questions
Q1) Up to 100,000 Serial Attached SCSI hard disks can be connected to a single SCSI controller via serial cables with small serial connectors.
A)True
B)False
Q2) What is a SCSI ID and why is it used? List the priorities, from highest to lowest, of the SCSI IDs on a SCSI controller that supports 15 devices.
Q3) A type of RAID level 0 that consists of two hard disks that are seen as one large volume.
A)Network File System (NFS)
B)/root/install.log
C)disk striping
D)firmware RAID
E)Logical Unit Number (LUN)
F)iSCSI target
G)/root/install.log.syslog
H)segmentation fault
I)spanning
Q4) What is iSCSI? What is it typically used for and how is it configured?
Q5) What is System Rescue? Explain how you would activate this tool.
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Chapter 7: Working With the Bash Shell
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Sample Questions
Q1) Users can create their own custom variables, called shell variables.
A)True
B)False
Q2) You can send the standard output of one command to another command as standard input using the ____ shell metacharacter.
A) <
B) |
C) >
D) #
Q3) What are shell variables? What are environment and user-defined variables?
Q4) To prevent a file from being cleared by the BASH shell and append output to the existing output, you can specify three > metacharacters alongside the file descriptor.
A)True
B)False
Q5) Most commands that are run by the shell are run in a separate ____________________, which is created by the current shell.
Q6) What are shell scripts? Why and how are they executed?
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Chapter 8: System Initialization and X Windows
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Sample Questions
Q1) To create an encrypted password for use in the /boot/grub/grub.conf, you can use the ____ command
A) grub-config
B) grub-encrypt
C) grub-pswrd
D) grub-md5-crypt
Q2) The core component of a Linux GUI is X Windows.
A)True
B)False
Q3) When a computer first initializes, the system BIOS performs a(n)
Q4) A(n) ____________________ defines the number and type of daemons that are loaded into memory and executed by the kernel on a particular system.
Q5) The Linux kernel is stored in the ____ directory.
A) /
B) /boot
C) /root
D) /krnl
Q6) List and describe the seven Linux runlevels. Mention the common name of each.
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Chapter 9: Managing Linux Processes
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Sample Questions
Q1) Describe the purpose the process state column displayed by the ps -l command. What values may appear in this column, and what do these values indicate?
Q2) Identifies the process that started another process.
A)cron daemon
B)program
C)/var/spool/cron
D)trapping
E)PPID
F)PID
G)/etc/crontab
H)/var/spool/at
I)at daemon
Q3) Processes are started with a nice value of ____ by default.
A) -20
B) 0
C) 1
D) 19
Q4) What is forking?
Q5) The ____________________ can be used to affect the process priority indirectly.
11
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Chapter 10: Common Administrative Tasks
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Sample Questions
Q1) By default, all print jobs have a priority of ____.
A) -50
B) 0
C) 50
D) 100
Q2) Why should log files be periodically cleared? What methods can be used to clear log files?
Q3) Describe the process of sending information to a printer using the CUPS daemon.
Q4) On most Linux systems, the logrotate utility is automatically scheduled to run weekly. A)True
B)False
Q5) The ____ option to the lpstat command causes a list of printers that are enabled to be displayed.
A) -o
B) -a
C) -p
D) -e
Q6) The ____________________ facility used by the System Log Daemon specifies messages from the Linux kernel.
Page 12
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Chapter 11: Compression, System Backup, and Software Installation
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Sample Questions
Q1) It is good form to read the Makefile after you run the configure script.
A)True
B)False
Q2) The tar utility cannot back up device files or files with filenames longer than 255 characters.
A)True
B)False
Q3) What types of media are commonly used for archives? What type of media is most commonly used for archiving on Linux systems?
Q4) The ____ command can be used to display the contents of a compressed file.
A) acat
B) zcat
C) cat
D) ccat
Q5) Packages in the Red Hat Package Manager format have filenames that indicate the hardware architecture for which the software was compiled, and end with the ____________________ extension.
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Q6) ____________________ is used to reduce the size of a file or set of files.
Q7) Describe the basic steps involved in compiling source code into a program.
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Chapter 12: Network Configuration
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Sample Questions
Q1) A host name that follows DNS convention.
A)SSH
B)DNS
C)ISP
D)FQDN
E)telnet
F)CIDR
G)WANs
H)X Windows
I)LANs
Q2) The /etc/resolv.conf file can contain up to ____ DNS servers.
A) two
B) three
C) four
D) five
Q3) In an IP address, the host ID represents the network on which the computer is located.
A)True
B)False
Q4) Describe the telnet and SSH utilities. What is the difference between them?
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Chapter 13: Configuring Network Services
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Sample Questions
Q1) A protocol that allows computers to share files transparently.
A)DNS cache file
B)SQL
C)Network File System (NFS)
D)forward lookup
E)document root
F)zone
G)directive
H)recursive query
I)reverse lookup
Q2) In the PostgreSQL utility, the ____________________ built-in command is used to list available databases.
Q3) To share information to Windows client computers, you can use the ____________________ daemon, which emulates the SMB protocol.
Q4) The use of NFS is less common than the use of FTP to transfer files on public networks.
A)True
B)False
Q5) What is NFS? How do you access files using a configured NFS Server?
Q6) How does DHCP automatically configure IP addresses?
Page 15
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Chapter 14: Troubleshooting, Performance, and Security
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Sample Questions
Q1) When performance issues arise, you can compare the output of performance utilities to the ____________________ values found in the system log book.
Q2) When applications run into difficulties gaining resources during execution and stop functioning, restarting the process using a(n) ____ often solves this problem.
A) SIGINT
B) SIGQUIT
C) SIGTERM
D) SIGHUP
Q3) Performing regular system backups and identifying potential problem areas are examples of reactive maintenance.
A)True
B)False
Q4) Almost all hardware problems are the result of damaged hardware.
A)True
B)False
Q5) What methods can be used to physically secure local computers?
Q6) How can you identify filesystem corruption? How should you troubleshoot filesystem corruption on a non-critical partition?
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