Answer:
b. This would set the group ownership of file1 to root.
Explanation:
Linux allows user to have his own files and regulate the ability of other users to access them. The <em>chown</em> command allows you to use the appropriate utility to change the owner of a file or directory.
The basic command syntax is as follows:
# chown [options] <owner name: owner group name> <file or directory name>
For example, if you want to give a user <em>root</em> opportunity to use the <em>file1.txt</em> file as he wishes, you can use the following command:
# chown root file1.txt
In addition to changing the owner of a file, the group of its owners or both can be changed at the same time. Use a colon to separate the username and user group name (without the space character):
# chown user2:group2 file1.txt
As a result, the user with the name <em>user2</em> will become the owner of the <em>file1.txt</em> and its group will become <em>group2</em>.
In your case omitting username
# chown :root file1.txt
will change owner group only.
A DSS uses software that allows managers to more fully utilize available information to assist in making decisions is the primary difference between a Marketing Information System (MIS) and a Decisions Support System (DSS).
<h3><u>
Explanation:</u></h3>
A management information system that helps the marketers in making important decisions that are related to the marketing fields refers to the marketing information system. It is the system where the information that are associated with the marketing will be gathered and analysed for making important decisions by the marketing managers.
The information system that helps an organisation in making important decisions are called as Decision support system. The main thing that differentiates MIS and DSS is that A DSS uses software that allows managers to more fully utilize available information to assist in making decisions.
<span><span>Operating system: Windows 2000/XP
</span><span>CPU: Pentium 4 1.5 GHz or Athlon XP 1500+ processor or higher
</span><span>Memory: 384 MB RAM</span></span>
The answer to this question would be the last choice. The master program that controls the system hardware.
All computers require a software known as the <em>operating system</em> to properly function and allow you to use the computer. This operating system works as a "master program" that manages the computer's processes and memory.
