Deck 14: Ms-Dos Operating System

Question 1

An interrupt vector specifies where the interrupt handler program for a specific interrupt type is located.

Answer 1

True

Question 2

You can write your own device driver for MS-DOS.

Answer 2

True

Question 3

Version 3.2 of MS-DOS supported token ring and 3 1/2 inch disks.

Answer 3

True

Question 4

The MS-DOS command processor is interpretive.

Question 5

Device channels are a part of MS-DOS.

Question 6

The layer at the bottom of MS-DOS is BIOS (Basic Input/Output System).

Question 7

In its heyday, MS-DOS ran an enormous collection of software packages, making it difficult to discontinue this operating system.

Question 8

The DOS kernel is a proprietary program supplied by Microsoft Corporation that implements MS-DOS.

Question 9

DOS is not case-sensitive so filenames and commands can be entered in uppercase, lowercase, or a combination of both.

Question 10

MS-DOS was written for a single family of microprocessors.

Question 11

Later versions of MS-DOS are not compatible with earlier versions.

Question 12

The top layer of MS-DOS is the kernel.

Question 13

If a program that is already running needs more memory, such as for additional I/O buffers, the Memory Manager checks to see whether enough memory remains.

Question 14

When the user is working in a directory or subdirectory, it is called the working directory and any file in that directory can be accessed by its relative name.

Question 15

MS-DOS is the successor of the IBM operating system.

Question 16

Interrupt handlers are a crucial part of the system.

Question 17

When a disk is formatted (using the FORMAT command), its tracks are divided into sectors of 1024 bytes each.

Question 18

In RAM main memory, the interrupt vectors are located in high-addressable memory and the COMMAND.COM overlay is located in low-addressable memory.

Question 19

A well-designed application program only releases memory when it stops running.

Question 20

MS-DOS was designed to accommodate a single novice user in a single-process environment.

Question 21

The ____ version of MS-DOS began to support dynamic memory allocation.

A) 1.0
B) 1.5
C) 2.0
D) 5.5

Question 22

If a block contains four paragraphs and is the first of two blocks, then its code would be ____.

A) 7700004h
B) 7700000004h
C) 90000000004h
D) 900000000030h

Question 23

Programs with the ____ extension are given all of the TPA, whether or not they need it.

A) BAT
B) COM
C) EXE
D) RUN

Question 24

The ____ operating system was developed by IBM and Microsoft to replace MS-DOS.

A) Windows
B) OS/2
C) DOS2
D) Linux

Question 25

____ is usually very small in size and contains a program, a section of BIOS, with the sole task of starting up the system.

A) REM
B) Bootstrapping
C) RAM
D) ROM

Question 26

The Memory Manager uses a ____ memory allocation scheme.

A) best fit first
B) next fit first
C) first-fit
D) last-fit

Question 27

The DOS kernel is read into memory at initialization time from the ____ file residing in the boot disk.

A) MSDOS.SYS
B) MSKernel.DOS
C) DOSK.COM
D) COMMAND.COM

Question 28

____ interrupts are generated by certain events occurring during a program's execution, such as division by zero.

A) Internal hardware
B) External hardware
C) Software
D) Exception

Question 29

The MS-DOS command LIST displays the text file on the screen.

Question 30

The portion of DOS that users interact with is ____.

A) BIOS
B) DOS processor
C) DOS Kernel
D) COMMAND.COM

Question 31

Each subdirectory can contain its own subdirectories and/or files.

Question 32

____ was initially responsible for the popularity of MS-DOS.

A) IBM
B) Sun
C) HP
D) Apple

Question 33

The directories that were supported by version 1.0 of MS-DOS number ____.

A) 0
B) 1
C) 10
D) 100

Question 34

A ____ interrupt handler's function is to terminate a process without releasing its memory, thus providing memory-resident programming facilities.

A) Program Status Word
B) Terminate and Stay Resident
C) Pause and Wait
D) Stop and Start

Question 35

A commonly used filter is SORT, which accepts input from the keyboard, sorts that data, and displays it on the screen.

Question 36

When a block is formed its first five bytes contain information about the block, the ____ is contained in byte zero if it is the last block.

A) ASCII 90h
B) ASCII 77h
C) number 0
D) number of paragraphs in the block

Question 37

A personal computer has ____ interrupts and interrupt handlers.

A) 56
B) 128
C) 256
D) 1024

Question 38

Although MS-DOS is no longer widely used, many Windows operating systems offer a ____ to allow users who are comfortable with this operating system to use some DOS-like commands in a window.

A) DOS-compatible operating system named MD-DOS
B) version of DOS called WinDOS
C) DOS emulator
D) shell

Question 39

MS-DOS looks at data in a disk file as a continuous string of bytes.

Question 40

The DIR command displays directories and subdirectories in a hierarchical and indented list.

Question 41

Every time the CPU is powered up or is reset, the commands in the ____ file are executed automatically by the system.

A) AUTOEXEC.BAT
B) INIT.COM
C) INIT.EXE
D) COMMAND.COM

Question 42

A(n) ____ can cause the standard output from one command to be used as standard input to another command; its symbol is a vertical bar (|).

A) output transfer
B) redirect
C) filter
D) pipe

Question 43

____ is the redirection symbol?

A) <
B) >
C) >>
D) &

Question 44

There are ____ disk sectors grouped into a cluster.

A) two
B) two to eight
C) eight
D) eight to ten

Question 45

The ____ command allows the user to set up a series of files for printing while freeing up COMMAND.COM to accept other commands.

A) PRINT
B) SPOOL
C) LPR
D) PRT

Question 46

A file's relative name consists of its ____.

A) working directory, primary name, and extension
B) parent directory, primary name, and extension
C) drive letter, parent directory, primary name, and extension
D) primary name and extension

Question 47

BIOS is stored in ____.

A) ROM only
B) RAM only
C) ROM and RAM
D) CMOS

Question 48

The name for a device driver that can be incorporated into the operating system as needed without having to patch or change the existing operating system is ____.

A) installable
B) configurable
C) plug-and-play
D) hot-loadable

Question 49

The ____ contains status information about the disk's sectors that are allocated, free, and can't be allocated because of formatting errors.

A) Directory Manager
B) File System Information Block
C) File Allocation Table
D) File Status Table

Question 50

In the MS-DOS file management scheme, the symbol ____ follows the drive name.

A) ;
B) :
C) >
D) #