Chat with AIExam 2: Exploring the Unix-Linux File Systems and File Security
What is virtual memory?
(30) 
VerifiedA swap partition enables virtual memory.Virtual memory means you have what seem to be unlimited memory resources.Swap partitions accomplish this by providing swap space on a disk and treating it like an extension of memory (RAM).It is called swap space because the system can use it to swap information between disk and RAM.Setting up swap space makes your computer run faster and more efficiently.
Most versions of UNIX and Linux support the ____________________ (ufs),which is the original native UNIX file system.
(28) VerifiedUNIX file system
When configuring file permissions in UNIX-Linux systems,what is the role of the sticky bit?
(37) VerifiedOn older UNIX and Linux distributions,the sticky bit has been used to cause an executable program (a file you run as a program)to stay resident in memory after it is exited.This action ensures that the program is immediately ready to use the next time around or that it stays ready for multiple users on a server.In current operating systems,the sticky bit is used instead to enable a file to be executed,but only the file's owner or root have permission to delete or rename it.The symbol for the sticky bit is t (used in place of x),such as when you view permissions using ls -l.For example,when the sticky bit is set on a file,the permissions might look like: -rwxr-xr-t.
You can change the pattern of permission settings by using the ____ command.
(29) Match each item with a statement below.
-holds subdirectories that often change in size
(38) Match each item with a statement below.
-this directory occupies no space on the disk
(41) The ____ directory contains executables,which are the programs needed to start the system and perform other essential system tasks.
(30) Match each item with a statement below.
-mount points for temporary mounts by the system administrator reside in this directory
(27) You can create a ____ partition to hold files that are created temporarily,such as files used for printing documents (spool files)and files used to record monitoring and administration data,often called log files.
(37) The UNIX file system (ufs)supports ____,which automatically move data on damaged portions of disks to areas that are not damaged.
(37) Computer storage devices such as hard disks are called ____________________ devices.
(31) If you plan to have multiple users accessing your system,you should consider having a -var partition in which to store some or all of the nonkernel operating system programs that are accessed by users.
(32) If you plan to have multiple users access a system,you can create a ____ partition,which is the home directory for all users' directories.
(33) UNIX-Linux systems interpret ____ to mean the parent directory.
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