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The Linux Essentials Certificate Exam, version 1.6, is a certification test that assesses an individual's knowledge and abilities in the Linux operating system. 010-160 exam covers a broad range of topics including Linux command line, basic maintenance, and security. Linux Essentials Certificate Exam - version 1.6 certification is designed to validate the candidate's understanding of the key concepts of Linux and its software ecosystem.
NEW QUESTION # 24
Which of the following programs is a graphical editor for vector graphics?
- A. NGINX
- B. Inkscape
- C. Samba
- D. Python
- E. MySQL
Answer: B
Explanation:
A vector graphics editor is a software program that allows users to create and edit vector graphics, which are images composed of mathematical curves and shapes. Vector graphics are scalable, meaning they can be resized without losing quality or clarity. Python, NGINX, Samba, and MySQL are not vector graphics editors, but rather other types of software. Python is a programming language, NGINX is a web server, Samba is a file and print server, and MySQL is a database management system. Inkscape is a free and open source vector graphics editor that supports the SVG (Scalable Vector Graphics) format, as well as other formats. Inkscape can be used to create logos, icons, diagrams, illustrations, and other graphics. Inkscape is one of the applications covered in the Linux Essentials certification program from the Linux Professional Institute (LPI). Reference:
Linux Essentials - Linux Professional Institute (LPI)
Draw Freely | Inkscape
NEW QUESTION # 25
Which of the following statements is true about Free Software?
- A. It is only distributed as a compiled binary.
- B. It only runs on Linux.
- C. It is developed by volunteers only.
- D. It must always be available free of charge.
- E. It may be modified by anyone using it.
Answer: E
Explanation:
Explanation
The correct statement about Free Software is that it may be modified by anyone using it. This is one of the four essential freedoms of Free Software, which are: the freedom to run the program as you wish, for any purpose; the freedom to study how the program works, and change it so it does your computing as you wish; the freedom to redistribute copies so you can help your neighbor; and the freedom to distribute copies of your modified versions to others1. Access to the source code is a precondition for these freedoms1.
The other statements are false for the following reasons:
* Free Software is not developed by volunteers only. It can be developed by anyone, including individuals, companies, organizations, or communities. Some Free Software developers are paid for their work, while others do it as a hobby or for social benefit1.
* Free Software does not have to be available free of charge. It can be sold or given away for any price. The term "free" refers to the users' freedom, not the price of the software1. However, Free Software users have the freedom to redistribute copies, so they can obtain the software at no charge from someone who has a copy1.
* Free Software does not only run on Linux. It can run on any operating system that supports it, such as Windows, MacOS, BSD, or Android. Linux is an example of a Free Software operating system, but not the only one1.
* Free Software is not only distributed as a compiled binary. It can also be distributed as source code, or both. In fact, Free Software must provide access to the source code, otherwise the users cannot study or modify the software1.
References:
* What is Free Software? - GNU Project - Free Software Foundation
NEW QUESTION # 26
Which of the following commands can be used to resolve a DNS name to an IP address?
- A. iplookup
- B. dns
- C. dnsname
- D. host
- E. query
Answer: D
Explanation:
The host command is used to resolve a DNS name to an IP address or vice versa. It can also perform other DNS queries, such as finding the mail servers for a domain. The host command has the following syntax: host [options] [name] [server]. The name argument can be a hostname, such as www.lpi.org, or an IP address, such as 192.168.0.1. The server argument is optional and specifies the name or IP address of the DNS server to query. If no server is given, the default system resolver is used. Reference:
Linux Essentials Version 1.6 Objectives: 1.4.1. Demonstrate an understanding of the purpose and types of DNS records1 Linux Essentials Version 1.6 Exam Study Resources: Linux Essentials Manual - Chapter 10. Network Fundamentals - 10.3. DNS and Hostname Resolution - 10.3.1. The host Command2 Linux Essentials Version 1.6 Exam Study Resources: Linux Essentials Manual - Appendix A. Answers to the Exercises - Chapter 10. Network Fundamentals - 10.3. DNS and Hostname Resolution - Exercise 10.3.12
NEW QUESTION # 27
Which statements about the directory /etc/skel are correct? (Choose two.)
- A. The files from the directory are copied to the home directory of a new user when the account is created.
- B. The directory contains a default set of configuration files used by the useradd command.
- C. The personal user settings of root are stored in this directory.
- D. The directory contains the global settings for the Linux system.
- E. The files from the directory are copied to the home directory of the new user when starting the system.
Answer: A,B
NEW QUESTION # 28
Which of the following commands adds the directory/new/dir/to thePATHenvironment variable?
- A. export $PATH=/new/dir: $PATH
- B. export PATH=/new/dir: $PATH
- C. PATH=/new/dir: PATH
- D. $PATH=/new/dir: $PATH
- E. export PATH=/new/dir: PATH
Answer: E
Explanation:
Explanation
The PATH environment variable is a colon-separated list of directories that the shell searches for commands.
To add a new directory to the PATH, you need to append it to the existing value of the variable, using the syntax PATH=new/dir:PATH. However, this only changes the PATH for the current shell session. To make the change permanent, you need to use the export command, which makes the variable available to all child processes of the shell. The export command takes the name of the variable as an argument, without the dollar sign ($). Therefore, the correct command to add /new/dir/ to the PATH and export it is export PATH=/new/dir:PATH. References:
* Linux Essentials - Linux Professional Institute (LPI)
* How to set the path and environment variables in Windows - Computer Hope
NEW QUESTION # 29
Running the commandrm Downloadsleads to the following error:
rm: cannot remove 'Downloads/': Is a directory
Which of the following commands can be used instead toremoveDownloads, assumingDownloadsis empty? (Choose two correct answers.)
- A. dir -r Downloads
- B. rmdir Downloads
- C. undir Downloads
- D. rem Downloads
- E. rm -r Downloads
Answer: B,E
NEW QUESTION # 30
Which of the following is a protocol used for automatic IP address configuration?
- A. SMTP
- B. LDAP
- C. DHCP
- D. NFS
- E. DNS
Answer: C
NEW QUESTION # 31
What is true about the owner of a file?
- A. When a user is deleted, all files owned by the user disappear.
- B. The user owning a file must be a member of the file's group.
- C. The owner of a file always has full permissions when accessing the file.
- D. The owner of a file cannot be changed once it is assigned to an owner.
- E. Each file is owned by exactly one user and one group.
Answer: E
NEW QUESTION # 32
Which of the following directories contains information, documentation and example configuration files for installed software packages?
- A. /usr/share/doc/
- B. /usr/examples/
- C. /etc/defaults/
- D. /var/info/
- E. /doc/
Answer: A
Explanation:
Explanation/Reference:
NEW QUESTION # 33
What is true about the dmesg command? (Choose two correct answers.)
- A. It displays the content of the Linux kernel's ring buffer.
- B. It sends messages to the command lines of all current user sessions.
- C. It traces the execution of a command and shows each step the program carries out.
- D. It immediately outputs all new messages written to the system journal.
- E. It might not display older information because it was overwritten by newer information.
Answer: A,E
Explanation:
The dmesg command is used to display the messages from the kernel that are stored in a ring buffer. A ring buffer is a fixed-size data structure that overwrites the oldest entries when it is full. Therefore, the dmesg command might not display older information because it was overwritten by newer information. The dmesg command is useful for troubleshooting system issues and checking hardware information. The dmesg command is not used to trace the execution of a command, send messages to user sessions, or output the system journal. Those functions are performed by other commands such as strace, write, and journalctl respectively. Reference: : [dmesg] : [Ring buffer] : [strace] : [write (Unix)] : [journalctl]4)
NEW QUESTION # 34
Members of a team already have experience using Red Hat Enterprise Linux. For a small hobby project, the team wants to set up a Linux server without paying for a subscription. Which of the following Linux distributions allows the team members to apply as much of their Red Hat Enterprise Linux knowledge as possible?
- A. Ubuntu Linux LTS
- B. Raspbian
- C. CentOS
- D. Debian GNU/Linux
- E. openSUSE
Answer: C
Explanation:
CentOS is a Linux distribution that is based on the source code of Red Hat Enterprise Linux (RHEL). It is a free and open-source community-supported OS that provides an enterprise-level computing platform. CentOS is fully compatible with RHEL and can run the same applications and packages. Therefore, CentOS allows the team members to apply as much of their Red Hat Enterprise Linux knowledge as possible for their hobby project. Reference:
Linux Essentials Version 1.6 Objectives1, Topic 1.1: Linux Evolution and Popular Operating Systems, Subtopic: Linux Distributions Linux Essentials Version 1.6 Exam Preparation Guide2, Section 1.1: Linux Evolution and Popular Operating Systems, Page 7 CentOS Website3, About CentOS Linux Red Hat Enterprise Linux derivatives - Wikipedia4
NEW QUESTION # 35
Which of the following directories contains information, documentation and example configuration files for
installed software packages?
- A. /usr/share/doc/
- B. /usr/examples/
- C. /etc/defaults/
- D. /var/info/
- E. /doc/
Answer: A
NEW QUESTION # 36
Which of the following Linux Distributions is derived from Red Hat Enterprise Linux?
- A. Raspbian
- B. CentOS
- C. openSUSE
- D. Debian
- E. Ubuntu
Answer: B
NEW QUESTION # 37
Which of the following keys can be pressed to exit less?
- A. x
- B. e
- C. 0
- D. q
- E. !
Answer: D
NEW QUESTION # 38
Which of the following are typical services offered by public cloud providers? (Choose three.)
- A. Graphics as a Service (GaaS)
- B. Infrastructure as a Service(IaaS)
- C. Platform as a Service(PaaS)
- D. Internet as a Service(IaaS)
- E. Software as a Service (SaaS)
Answer: B,C,E
NEW QUESTION # 39
What information can be displayed bytop?
- A. Running processes, ordered by CPU or RAM consumption.
- B. User groups, ordered by the number of members.
- C. User accounts, ordered by the number of files.
- D. User accounts, ordered by the number of logins.
- E. Existing files, ordered by their size.
Answer: A
Explanation:
Explanation
The top command is a Linux command that shows the running processes on the system. It provides a dynamic real-time view of the system performance and resource usage. The top command can display various information about the processes, such as their process ID, user, priority, state, CPU and memory usage, command name, and more. The top command can also sort the processes by different criteria, such as CPU or RAM consumption, by using the interactive commands. The top command is useful for monitoring the system load and identifying the processes that are consuming the most resources. References:
* Linux Essentials Topic 104: The Linux Operating System, section 104.3: Basic features and commands of the Linux standard shells.
* Linux Essentials Topic 106: Security and File Permissions, section 106.4: Monitor and manage Linux processes.
NEW QUESTION # 40
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