Question 1

The UNIX process scheduling algorithm picks the process that will run in the shortest amount of time to be run first.

Accepted Answer

A) True 
 B)False

Question 2

UNIX stores files as sequences of bytes and does not impose any structure on them.

Accepted Answer

A) True 
 B)False

Question 3

The UNIX kernel does not reside in memory permanently;that is,it can be swapped out when needed to provide more space for applications.

Accepted Answer

A) True 
 B)False

Question 4

The command,____ ,will copy the contents of chapt1 and chapt2 into a file named section_a.

Accepted Answer

A)  section_a = chapt1 + chapt2 
B)  cp chapt1 section_a,cp chapt2 section_a 
C)  cat chapt1 chapt2 > section_a 
D)  ls chapt1,chapt2,section_a

Question 5

A ____ may occur if an event happens during the process's transition between deciding to wait for the event and entering the WAIT state.

Accepted Answer

A)  race 
B)  deadlock 
C)  starvation event 
D)  synchronization problem

Question 6

The maximum number of bytes that can be allocated to a single file in UNIX is ____.

Accepted Answer

A)  128 
B)  16,522 
C)  2,113,674 
D)  1,082,201,088

Question 7

UNIX uses the ____ page replacement algorithm.

Accepted Answer

A)  least recently used 
B)  round robin 
C)  priority 
D)  oldest first

Question 8

Subroutines that work with the operating system to supervise the transmission of data between main memory and a peripheral unit are called ____.

Accepted Answer

A)  device controllers 
B)  device drivers 
C)  control drivers 
D)  controllers

Question 9

The Processor Manager of a UNIX system kernel handles the allocation of the CPU,process scheduling,and the satisfaction of process requests.

Accepted Answer

A) True 
 B)False

Question 10

There is no return from a successful ____ call.

Accepted Answer

A)  nest 
B)  exec 
C)  duplicate 
D)  fork

Question 11

The ____ command allows the programmer to synchronize process execution by suspending the parent until the child is finished.

Accepted Answer

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

Question 12

IBM and Hewlett-Packard were among the companies that established The Open Group,which still owns the trademark to the name UNIX.

Accepted Answer

A) True 
 B)False

Question 13

To change to a directory that is up one level from the current working directory in the UNIX hierarchical directory tree structure,you can type ____.

Accepted Answer

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

Question 14

____ is a family of IEEE standards that define a portable operating system interface to enhance the portability of programs from one operating system to another.

Accepted Answer

A)  POSIX 
B)  POSFIX 
C)  LINUX 
D)  STD

Question 15

The UNIX file management system organizes the disk into blocks of 512 bytes each and divides the disk into four basic regions,the first of which ____.

Accepted Answer

A)  contains the size of the disk 
B)  holds free blocks available for file storage 
C)  includes a list of file definitions 
D)  is reserved for booting

Question 16

A terminal has two input queues.As a user types each character to the terminal,it is collected in the ____ queue.

Accepted Answer

A)  raw 
B)  canonical 
C)  character 
D)  buffer

Question 17

For multiprogramming systems,most UNIX operating systems use either ____ management techniques.

Accepted Answer

A)  indirect paging and hot swapping 
B)  simple memory and paging 
C)  virtual memory and swapping 
D)  swapping or demand paging memory

Question 18

UNIX is designed to provide device dependence to the applications running under it.

Accepted Answer

A) True 
 B)False

Question 19

In UNIX,a ____ table is allocated to each active process that includes information such as the user and group identification numbers to determine file access privileges.

Accepted Answer

A)  process 
B)  subtext 
C)  user 
D)  database

Question 20

The original development goals for UNIX were twofold: to develop an operating system that would support software development,and to keep its algorithms as simple as possible.

Accepted Answer

A) True 
 B)False

Exam 13: Unix Operating Systems

The UNIX process scheduling algorithm picks the process that will run in the shortest amount of time to be run first.

UNIX stores files as sequences of bytes and does not impose any structure on them.

The UNIX kernel does not reside in memory permanently;that is,it can be swapped out when needed to provide more space for applications.

The command,____ ,will copy the contents of chapt1 and chapt2 into a file named section_a.

A ____ may occur if an event happens during the process's transition between deciding to wait for the event and entering the WAIT state.

The maximum number of bytes that can be allocated to a single file in UNIX is ____.

UNIX uses the ____ page replacement algorithm.

Subroutines that work with the operating system to supervise the transmission of data between main memory and a peripheral unit are called ____.

The Processor Manager of a UNIX system kernel handles the allocation of the CPU,process scheduling,and the satisfaction of process requests.

There is no return from a successful ____ call.

The ____ command allows the programmer to synchronize process execution by suspending the parent until the child is finished.

IBM and Hewlett-Packard were among the companies that established The Open Group,which still owns the trademark to the name UNIX.

To change to a directory that is up one level from the current working directory in the UNIX hierarchical directory tree structure,you can type ____.

____ is a family of IEEE standards that define a portable operating system interface to enhance the portability of programs from one operating system to another.

The UNIX file management system organizes the disk into blocks of 512 bytes each and divides the disk into four basic regions,the first of which ____.

A terminal has two input queues.As a user types each character to the terminal,it is collected in the ____ queue.

For multiprogramming systems,most UNIX operating systems use either ____ management techniques.

UNIX is designed to provide device dependence to the applications running under it.

In UNIX,a ____ table is allocated to each active process that includes information such as the user and group identification numbers to determine file access privileges.

The original development goals for UNIX were twofold: to develop an operating system that would support software development,and to keep its algorithms as simple as possible.