Name the network layers from top to bottom:

Application, Transport, Internet, Link

Secondary storage is...

where all data is stored when not in use

Network Protocols are...?

Rules which govern how devices communicate and transmit data

School security should be for...

Protecting schools from outside threats

In the Von Neumann architecture, essential items include:

Control unit, buses, ALU, main memory

What does an operating system not do?

It sends the bluetooth firewall into the HDD device, transcoding the alarm

Compared to Main Memory, Secondary Storage is:

Slower, larger capacity and non-volatile

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AQA GCSE Computer Science Paper 2 Revision

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Questions 16

Answers

1
What is the largest denary number you can represent using 4-bit binary?
31
32
16
15
2
What is an advantage of a wireless network?
They are more secure
They are more complex
They are quicker
They are cheaper
3
Name the network layers from top to bottom:
Gateway, Router, Switch, Server
Application, Transport, Internet, Link
Internet, Link, Transport, Application
Router, Bridge, Gateway, Switch
4
Secondary storage is...
for storing data
long term back up’s
memory areas that can be accessed by the CPU
where all data is stored when not in use
5
What is 00100101 x 4?
00001001
10010100
10010100
01001010
6
Network Protocols are...?
Rules which govern how devices communicate and transmit data
How computers save and open files on a network.
Methods of connection between networks and nodes.
What defines topologys on a network.
7
A 2.5 Ghz CPU will Fetch, Decode and Execute instructions.....?
2.5 billion times a minute
2.5 million times a second
2.5 billion times a second
2.5 million times a minute
8
School security should be for...
Preventing students from interrupting teachers
Unwarranted student searches
Protecting schools from outside threats
Arresting students for misbehaving
9
In the Von Neumann architecture, essential items include:
Bricks, clearly defined spaces and large windows.
CPU, keyboard, mouse, monitor
Control unit, buses, ALU, main memory
Operating system, utilities and applications
10
Which ones are Transport layer protocols?
JPEG, GIF, ZIP, MPEG, MOV
TCP, UDP
HTTP, POP, IMAP, FTP
IPv4, IPv6
11
What does an operating system not do?
Executes and provide services for application software
It sends the bluetooth firewall into the HDD device, transcoding the alarm
Manages the storage, input and output devices
It manages the internal hardware
12
What does this binary number represent?
160
140
120
180
13
CB in binary
11010111
11001011
10110100
11101011
14
Which ones are Application layer protocols?
JPEG, GIF, ZIP, MPEG, MOV
TCP, UDP
HTTP, POP, IMAP, FTP
IPv4, IPv6
15
What is 20 in binary?
10101010
00010100
00001001
01001100
16
Compared to Main Memory, Secondary Storage is:
Faster, larger capacity and volatile
Slower, smaller capacity and non-volatile
Faster, larger capacity and non-volatile
Slower, larger capacity and non-volatile

AQA GCSE Computer Science Paper 2 Revision Flashcards | StudBud