Linux Foundations - D281 Exam
questions with Answers
Software Packages - -Debian, Ubuntu and Linux Mint use the dpkg, apt-get
and apt tools to install software packages, generally referred as DEB
packages. Distributions such as Red Hat, Fedora and CentOS use the rpm,
yum and dnf commands instead, which in turn install RPM packages.
- PHP (Hypertext Preprocessor) - -Programming language used to build
websites with interactive capabilities; adapts the HTML page to the user's
selections.
- Samba - -Is a software package that allows file sharing between Linux and
Windows machines over the local network
- Criteria of Free Software - -1. The freedom to run the program as you wish,
for any purpose (freedom 0)."
2. The freedom to study how the program works, and change it so it does
your computing as you wish (freedom 1). Access to the source code is a
precondition for this
3. The freedom to redistribute copies so you can help others (freedom 2)."
This freedom explicitly encourages each user to share the software with
others
4. The freedom to distribute copies of your modified versions to others
(freedom 3). By doing this you can give the whole community a chance to
benefit from your changes. Access to the source code is a precondition for
this.
- open source software - -Program code made publicly available for free; it
can be copied, distributed, or changed without the stringent copyright
protections of proprietary software products.
- GNOME and KDE - -two major desktop environments in the Linux world.
The Gnome applications are based on the GTK toolkit (written in the C
language), KDE applications make use of the Qt library (written in C++).
- TLS (Transport Layer Security) - -A security protocol that uses certificates
and public key cryptography for mutual authentication and data encryption
over a TCP/IP connection.
- GNU Privacy Guard - -A free version of OpenPGP; it is also known as PGP. It
uses RSA keys.
questions with Answers
Software Packages - -Debian, Ubuntu and Linux Mint use the dpkg, apt-get
and apt tools to install software packages, generally referred as DEB
packages. Distributions such as Red Hat, Fedora and CentOS use the rpm,
yum and dnf commands instead, which in turn install RPM packages.
- PHP (Hypertext Preprocessor) - -Programming language used to build
websites with interactive capabilities; adapts the HTML page to the user's
selections.
- Samba - -Is a software package that allows file sharing between Linux and
Windows machines over the local network
- Criteria of Free Software - -1. The freedom to run the program as you wish,
for any purpose (freedom 0)."
2. The freedom to study how the program works, and change it so it does
your computing as you wish (freedom 1). Access to the source code is a
precondition for this
3. The freedom to redistribute copies so you can help others (freedom 2)."
This freedom explicitly encourages each user to share the software with
others
4. The freedom to distribute copies of your modified versions to others
(freedom 3). By doing this you can give the whole community a chance to
benefit from your changes. Access to the source code is a precondition for
this.
- open source software - -Program code made publicly available for free; it
can be copied, distributed, or changed without the stringent copyright
protections of proprietary software products.
- GNOME and KDE - -two major desktop environments in the Linux world.
The Gnome applications are based on the GTK toolkit (written in the C
language), KDE applications make use of the Qt library (written in C++).
- TLS (Transport Layer Security) - -A security protocol that uses certificates
and public key cryptography for mutual authentication and data encryption
over a TCP/IP connection.
- GNU Privacy Guard - -A free version of OpenPGP; it is also known as PGP. It
uses RSA keys.
