Open Source Software

• Название: Open Source Software
• Дата: 26.05.2022
• Размер: 1.28 Mb.
• Имя файла: Final_OS 2.docx
• Тип: Документы; #551026
• страница: 6 из 39

Unix is:. (choose two)

• 
  An operating system
  
• 
  A type of hardware
  
• 
  A trademark
  
• 
  A distribution of Linux
  
• 
  A text editor
  

Linux is written in:

• 
  C
  
• 
  .NET
  
• 
  C++
  
• 
  Java
  
• 
  Perl
  

Source code refers to:

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

What is the standard option to provide a command line program to view its documentation?

• 
  –info
  
• 
  –doc
  
• 
  –help
  
• 
  -h
  

The command man -k is the same as the command apropos.. True or False?

• 
  True
  
• 
  False
  

The whatis command is the same as man -w.

• 
  True
  
• 
  False
  

The directory where additional documentation for software packages most likely can be found is:

• 
  /var/lib/doc
  
• 
  /usr/software/doc
  
• 
  /usr/share/doc
  
• 
  /var/share/doc
  

Hidden files are files that begin with what character?

• 
  A plus (+)
  
• 
  A dash (-)
  
• 
  A period (.)
  
• 
  An asterisk (*)
  

What option for the ls command will display all files, including hidden files?

• 
  -w
  
• 
  -H
  
• 
  -L
  
• 
  -a
  

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

• 
  /
  
• 
  /root
  
• 
  /home
  
• 
  C:
  

Is the following path absolute or relative?. /etc/ppp

• 
  Relative
  
• 
  Absolute
  

Is the following path absolute or relative?. sysadmin/Documents

• 
  Relative
  
• 
  Absolute
  

Compression on a file works by:

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

In general, for which of the following would you want to use lossless compression?

• 
  An mp3 audio file
  
• 
  A movie
  
• 
  A log file
  
• 
  A JPEG image
  
• 
  An encrypted email
  

Lossy compression:. (choose three)

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

You type gzip myfile.tar. What happens?. (choose two)

• 
  myfile.tar.gz holds a compressed version of myfile.tar
  
• 
  An error; you forgot to pass the name of the output file
  
• 
  An error; you forgot to specify the file with –f
  
• 
  myfile.tar is unarchived into the current directory
  
• 
  myfile.tar is removed
  

Error messages generated by commands are sent where by default?

• 
  STDIN
  
• 
  Log files
  
• 
  STDERR
  
• 
  STDOUT
  

A successful command will print output to STDOUT.. True or False?

• 
  True
  
• 
  False