Exam Knowledge Flashcards

1
Q

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

A

ISA Cards

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2
Q

Expansion cards are what?

A

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

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3
Q

What purpose does POST serve?

A

Test the system at startup.

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4
Q

Expansion cards are also called what?

A

Adapter cards.

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5
Q

Virtual Memory + RAM =

A

Swap File

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6
Q

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

A

True

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7
Q

What are specific instructions stored on a ROM chip called?

A

Firmware

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8
Q

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

A

True

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9
Q

DRAM requires what to maintain contents?

A

Refreshing

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10
Q

SDRAM is triggered by a clock pulse. True/False

A

True

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11
Q

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

A

True

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12
Q

When was the first integrated circuit introduced?

A

1950s

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13
Q

Buses or integrated circuits are etched onto computer chips?

A

Integrated circuits.

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14
Q

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

A

False

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15
Q

What is the DOS command to make a directory?

A

md or MKDIR

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16
Q

What is the Unix command to make a directory?

A

mkdir

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17
Q

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

A

type

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18
Q

What is the Unix command to change your password?

A

passwd

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19
Q

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

A

cat

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20
Q

chmod 751 results in what permissions?

A

rwx r_x __x

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21
Q

Where is the bootstrap loader stored?

A

BIOS.

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22
Q

BIOS stands for what?

A

Basic Input/Output System

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23
Q

A journalling file system prevents what?

A

Inconsistency

24
Q

Character devices transfer data how?

A

One byte at a time. E.g. Printer

25
Q

Block devices transfer data how?

A

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

26
Q

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

A

True

27
Q

Does NTFS or FAT32 have a larger maximum partition size?

A

NTFS.

28
Q

Modern operating systems are interrupt what?

A

Driven.

29
Q

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

A

Interrupt handler.

30
Q

RAID is what?

A

Redundant Array of Independent Disks

31
Q

Hardware interrupts are generated by what?

A

I/O devices.

32
Q

What is a file that contains only ASCII characters?

A

A text file.

33
Q

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

A

Binary data file.

34
Q

A program that contains runnable program code is a what?

A

Executable.

35
Q

Files are organised in a heirachical groupings called what?

A

Directories.

36
Q

What differentiates between files of the same name?

A

The full path.

37
Q

What is thrashing?

A

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

38
Q

How do you find out what your shell is?

A

echo $SHELL

39
Q

How do you stop a process with PID 567?

A

kill 567

40
Q

How do you do number comparisons in shell scripting?

A

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

41
Q

What are the boolean operators in shell scripting?

A

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

42
Q

How do you remove a directory in Unix and DOS?

A

rmdir/RMDIR

43
Q

How do you copy a file in Unix and DOS?

A

cp

44
Q

How do you copy recursively in DOS?

A

XCOPY

45
Q

How do you copy recursively in Unix?

A

cp - r

46
Q

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

A

FIND “word” *

47
Q

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

A

grep -r “word” *

48
Q

How do you rename a file in DOS?

A

RENAME

49
Q

How do you rename a file in Unix?

A

mv

50
Q

How do you change directory in DOS or Unix?

A

CD/cd

51
Q

How do you get help in DOS or Unix?

A

HELP / man

52
Q

How do you change file permissions in Unix?

A

chmod

53
Q

How do you show running processes in Unix?

A

ps

54
Q

How do you compress files in DOS and Unix?

A

ZIP / zip or gzip

55
Q

How do you format a disk in DOS and Unix?

A

FORMAT / mke2fs