Deck 16: Linux Operating System

Question 1

Linux has system calls that change the size of the process data segment, either by expanding it to accommodate extra data values or reducing it when certain values positioned at the end of the data segment are no longer needed.

Answer 1

True

Question 2

Virtual memory is implemented in Linux through demand paging.

Answer 2

True

Question 3

The name Linux is a contraction of Linus and UNIX.

Answer 3

True

Question 4

Device drivers supervise the transmission of data between main memory and the local unit.

Question 5

In the Linux processor management system, SCHED_OTHER has the highest priority.

Question 6

Virtual memory in Linux is managed using a multiple-level table hierarchy, which accommodates both 64- and 32-bit architectures.

Question 7

Linux was developed by Dennis Ritchie, who wanted to create an operating system to maximize the limited capabilities of the Intel 80386 microprocessor.

Question 8

When Linux allocates memory space, it allocates one GB of high-order memory to the kernel and three GB of memory to executing processes.

Question 9

Linux brought the speed, efficiency, and flexibility of UNIX to a small computer environment.

Question 10

To keep track of free and busy pages, Linux uses a system of page tables.

Question 11

Linux administrators have access to numerous standard utilities, eliminating the need to write special code.

Question 12

The first primary corporate supporter of Linux was Red Hat Linux, the world's leading Linux distributor until 2005.

Question 13

A page's middle directory contains pointers to its corresponding page table files.

Question 14

In Linux, each process is referenced by a descriptor, which contains approximately fifteen fields describing the process attributes together with the information needed to manage the process.

Question 15

Linux powerful but it is expensive to own.

Question 16

The Fedora Project encourages continuation of open-source development of the Linux kernel.

Question 17

When a process requests pages, Linux loads them into disk.

Question 18

Linux was based on a version of UNIX but capitalized on the lessons learned over the previous twenty years of UNIX development.

Question 19

Linux is an open-source program.

Question 20

Linux offers memory protection based on the type of information stored in each region belonging to the address space of a program.

Question 21

In Linux the semaphore structure contains ____ fields.

A) two
B) three
C) four
D) five

Question 22

Linux terminal management conforms to ____ standards, and it also supports pseudo-terminals as well as process control systems.

A) POSIX
B) SCSI
C) USB
D) DLL

Question 23

Because Linux is written and distributed under the ____ General Public License, its source code is freely distributed and available to the general public.

A) GPL
B) Open Publication
C) GNU
D) MPP

Question 24

Virtual memory in Linux is managed using a multiple-level table hierarchy, which accommodates both 64- and ____-bit architectures.

A) 32
B) 96
C) 128
D) 512

Question 25

Linux provides ____ queues and semaphores to allow two processes to synchronize with each other.

A) exec
B) fork
C) wait
D) pause

Question 26

The page replacement algorithm is an expanded version of the ____ replacement policy.

A) clock page
B) clock
C) page clock
D) page

Question 27

Fedora Core 2 was introduced in ____.

A) 2003
B) 2004
C) 2005
D) 2006

Question 28

Linux is ____, which improves its portability from one system to another.

A) device unique
B) device portability
C) device dependent
D) device independent

Question 29

Filenames are not case sensitive in Linux.

Question 30

A path name can be either one name or a list of names separated by dashes.

Question 31

The Fedora Project issues updates free to the public about every ____ months.

A) two
B) four
C) six
D) eight

Question 32

All Linux files are organized in directories that are connected to each other in a treelike structure.

Question 33

Only when all FIFO processes are completed does the scheduler proceed to execute processes of ____ priority.

A) higher
B) lower
C) the highest
D) the lowest

Question 34

Virtual memory management uses ____ levels of tables.

A) two
B) three
C) four
D) five

Question 35

In Linux device management, the ____ device number is used as an index to the array to access the appropriate code for a specific device driver.

A) major
B) minor
C) unique
D) support

Question 36

When a process begins execution, its segments have a ____ size.

A) large
B) variable
C) small
D) fixed

Question 37

The ____ device used in Linux memory management can be a partition on the disk or it can be a normal file.

A) pointer
B) swap
C) page
D) database

Question 38

Information about the well-being of a Linux system is available using the System Monitor window.

Question 39

Filenames can include a space, however this can cause complications if you're running programs from the command line because a program named interview notes would be viewed as a command to run two files: interview and notes.

Question 40

The process of grouping and splitting usable memory is known as the ____.

A) process algorithm
B) grouping algorithm
C) buddy algorithm
D) group/split algorithm

Question 41

In Linux,, ____ devices cannot host a file system.

A) write
B) read
C) block
D) char

Question 42

In Linux, the ____ log lists the status of files that have been transferred using a ftp service.

A) boot.log
B) dmesg
C) xferlog
D) secure

Question 43

The ____ represents the root directory.

A) \
B) ..
C) ^
D) /

Question 44

In Linux, information about the well-being of the system is available using the ____ Monitor window.

A) System
B) File
C) Process
D) Resource

Question 45

In Linux, the ____ command is used to change permissions on a file or directory.

A) cd
B) chmod
C) cp
D) grep

Question 46

Filenames that begin with one or two periods are considered ____ files.

A) hidden
B) open
C) closed
D) public

Question 47

A file containing data or programs belonging to users is known as a(n) ____.

A) symbolic link
B) ordinary file
C) special file
D) named pipe

Question 48

Administrators use ____ logs that provide a detailed description of activity on the system.

A) file
B) directory
C) detailed
D) system

Question 49

In Linux, the ____ character in the Permissions column of a directory listing describes the nature of the folder entry.

A) first
B) second
C) third
D) last

Question 50

The three standard classes of devices supported by Linux are ____.

A) character devices, system devices, and network interfaces
B) system devices, block devices, and network interfaces
C) character devices, block devices, and network interfaces
D) character devices, block devices, and network devices