Exam Knowledge

Question 1

More modern computers have motherboard-mounted mouse and keyboard functionality, but in the past they required what?

Answer 1

ISA Cards

Question 2

Expansion cards are what?

Answer 2

Circuit boards that are inserted into expansion slots. the cards communicate with the system via expansion buses.

Question 3

What purpose does POST serve?

Answer 3

Test the system at startup.

Question 4

Expansion cards are also called what?

Answer 4

Adapter cards.

Question 5

Virtual Memory + RAM =

Answer 5

Swap File

Question 6

Transistors open and close circuits in a computer. True/False

Answer 6

True

Question 7

What are specific instructions stored on a ROM chip called?

Answer 7

Firmware

Question 8

DRAM has a smaller physical size than SRAM. True/False

Answer 8

True

Question 9

DRAM requires what to maintain contents?

Answer 9

Refreshing

Question 10

SDRAM is triggered by a clock pulse. True/False

Answer 10

True

Question 11

A PROM chip can only be programmed once. True/False

Answer 11

True

Question 12

When was the first integrated circuit introduced?

Answer 12

1950s

Question 13

Buses or integrated circuits are etched onto computer chips?

Answer 13

Integrated circuits.

Question 14

SRAM stores each bit of data in a separate transistor and resistor. True/False

Answer 14

False

Question 15

What is the DOS command to make a directory?

Answer 15

md or MKDIR

Question 16

What is the Unix command to make a directory?

Answer 16

mkdir

Question 17

Which DOS command is used to display the contents of a file?

Answer 17

type

Question 18

What is the Unix command to change your password?

Answer 18

passwd

Question 19

What is the Unix command to display the contents of a file?

Answer 19

cat

Question 20

chmod 751 results in what permissions?

Answer 20

rwx r_x __x

Question 21

Where is the bootstrap loader stored?

Answer 21

BIOS.

Question 22

BIOS stands for what?

Answer 22

Basic Input/Output System

Question 23

A journalling file system prevents what?

Answer 23

Inconsistency

Question 24

Character devices transfer data how?

Answer 24

One byte at a time. E.g. Printer

Question 25

Block devices transfer data how?

Answer 25

A fixed length string of bytes. E.g. Disk

Question 26

With Unix file systems it is possible to delete executing programs while they're running without crashing. True/False

Answer 26

True

Question 27

Does NTFS or FAT32 have a larger maximum partition size?

Answer 27

NTFS.

Question 28

Modern operating systems are interrupt what?

Answer 28

Driven.

Question 29

An interrupt causes a block of code to run called a what?

Answer 29

Interrupt handler.

Question 30

RAID is what?

Answer 30

Redundant Array of Independent Disks

Question 31

Hardware interrupts are generated by what?

Answer 31

I/O devices.

Question 32

What is a file that contains only ASCII characters?

Answer 32

A text file.

Question 33

A file that contains data in machine format is a what?

Answer 33

Binary data file.

Question 34

A program that contains runnable program code is a what?

Answer 34

Executable.

Question 35

Files are organised in a heirachical groupings called what?

Answer 35

Directories.

Question 36

What differentiates between files of the same name?

Answer 36

The full path.

Question 37

What is thrashing?

Answer 37

An excessive amount of page swapping between main memory and secondary storage. Requires more RAM to increase performance.

Question 38

How do you find out what your shell is?

Answer 38

echo $SHELL

Question 39

How do you stop a process with PID 567?

Answer 39

kill 567

Question 40

How do you do number comparisons in shell scripting?

Answer 40

-eq for equals, -gt, -lt, -ne is not equals, -ge greater or equals, -le,

Question 41

What are the boolean operators in shell scripting?

Answer 41

! tests for not, -a tests for and, -o tests for or

Question 42

How do you remove a directory in Unix and DOS?

Answer 42

rmdir/RMDIR

Question 43

How do you copy a file in Unix and DOS?

Answer 43

cp

Question 44

How do you copy recursively in DOS?

Answer 44

XCOPY

Question 45

How do you copy recursively in Unix?

Answer 45

cp - r

Question 46

How do you search for a word in a file in DOS?

Answer 46

FIND "word" *

Question 47

How do you search for a word in Unix, in a directory, recursively?

Answer 47

grep -r "word" *

Question 48

How do you rename a file in DOS?

Answer 48

RENAME

Question 49

How do you rename a file in Unix?

Answer 49

mv

Question 50

How do you change directory in DOS or Unix?

Answer 50

CD/cd

Question 51

How do you get help in DOS or Unix?

Answer 51

HELP / man

Question 52

How do you change file permissions in Unix?

Answer 52

chmod

Question 53

How do you show running processes in Unix?

Answer 53

ps

Question 54

How do you compress files in DOS and Unix?

Answer 54

ZIP / zip or gzip

Question 55

How do you format a disk in DOS and Unix?

Answer 55

FORMAT / mke2fs