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OS: File Management

OS: File Management

Assessment

Presentation

Computers

9th - 10th Grade

Medium

Created by

Calum Gordon

Used 8+ times

FREE Resource

14 Slides • 19 Questions

1

OS: File Management

How the OS abstracts your files

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Multiple Select

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In this lesson I am going to learn ... ?

1

How the OS oragnises files and allocates space

2

Calculate storage space required for a particular file

3

How OS uses file permissions

4

Select appropriate level of access

5

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6

Multiple Choice

Which one of these options is NOT under the control of the OS?

1

File management

2

Process management

3

User management

4

Memory management

5

Time management

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8

Multiple Choice

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What name is given to the type of file organisation shown in the diagram?

1

Functional

2

Structural

3

Procedural

4

Hierarchical

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Fill in the Blank

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What special name is given to the directory at the very TOP of the file diagram?

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11

Multiple Choice

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When a hard disk is formatted a number of invisible __________ are laid down on the disk surface. ____________ divide the disk surface into areas a bit like slices of pizza. File data is divided up into ___________ and stored in these areas.

1

tracks, sectors, blocks

2

blocks, tracks, sectors

3

sectors, tracks, blocks

4

tracks, blocks, sectors

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13

Multiple Choice

A mebibyte is 2 to the power of ____________ bytes?

1

10

2

20

3

30

4

40

14

Fill in the Blank

Exactly how many bytes are there in 1 MiB?

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Fill in the Blank

Exactly how many bits are there in 1 KiB?

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Multiple Choice

A hard disk allocates space using a block size of 256 bytes.

A file is 8.2 MiB in size.

Which Python expression shows how many blocks are needed to store this file?

1

= math.ceil(8.2*1024*/256)

2

= math.ceil(8.2*1024*1024/256)

3

= (8.2*1024*1024//256)

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19

Multiple Select

Choose all the valid operations that the OS can carry out on a file ...

1

open

2

execute

3

print

4

copy

5

corrupt

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Fill in the Blank

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How many subdirectories of the root directory are shown in the diagram?

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Fill in the Blank

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How many files are shown in the diagram?

23

Fill in the Blank

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Many operating systems such as Linux treat folders as being a special type of file.

In that case, how many files are shown in the diagram?

24

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25

Multiple Choice

Which one is NOT a recognised file access permission?

1

read

2

write

3

execute

4

delete

5

copy

26

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Multiple Choice

Mr Turing is a Computer Science teacher in a senior school.

Mr Gates is the IT systems manager for the school.

What levels of permission should each be given for the school's main shared folder on OneDrive?

1

Turing - read

Gates - read/write/execute

2

Turing - read/write

Gates - read

3

Turing - read/write

Gates - execute

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Multiple Choice

Mr Turing is a Computer Science teacher in a senior school.

Bill Gates is a GCSE Computer Science student.

What levels of permission should each be given for the department 's main shared teaching folder on OneDrive?

1

Turing - read/write/delete

Gates - read

2

Turing - read

Gates - read/write/execute

3

Turing - read/write

Gates - read/delete

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31

Multiple Select

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In this lesson I have learned to ...

1

Describe how OS organises files

2

Calcu;ate storage blocks required

3

Describe types of file permission and how used

32

Open Ended

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Thinking Hard

Write three questions that this lesson so far has answered...

(press Shift+Enter to take a new line ...)

33

Poll

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How much of this lesson have you understood?

None of it

Some of it

Most of it

All of it

OS: File Management

How the OS abstracts your files

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