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OCR J277 Computer Science Paper 1 Computer Systems Flashcards | StudBud
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OCR J277 Computer Science Paper 1 Computer Systems
OCR J277 Computer Science Paper 1 Computer Systems
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OCR J277 Paper 1 Computer Systems #Computer Science #Paper 1
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Answers
1
Which of the following are the main CPU performance factors?
Clock Speed, Cores, Cache Size
Function Speed, Cores, Cache Levels
Function Speed, Cones, Cache Size
Clock Speed, Cores, Cache Levels
2
Which of the following is not utility software?
Defragmentation software
Data Backup software
Driver software
Encryption software
3
Which security method, monitors a network to find the cause and perpetrator of an attack?
User Access levels
Network forensics
Firewalls
Penetration Testing
4
Which of the following, holds the memory address of the instruction for the current cycle?
Program Counter
MAR
Accumulator
MDR
5
How many sections is the CPU split up into?
1
2
4
3
6
Which of the following has an incorrect performance factor of Secondary Storage?
Reliability, Durability, Mobility
Portability, Read/Write speed, Bootability
Price, Capacity, Portability
Capacity, Portability, Durability
7
How can business's protect their data from threats?
Strong user passwords
Screen Protectors
Hierarchy of Users
All of the above
8
What category does E-Waste fall under?
Cultural Issues
Environmental Issues
Ethical Issues
Legal Issues
9
Which layer; Splits data into packets and checks that they are sent/delivered correctly?
Layer 2 - Network Layer
Layer 4 - Application Layer
Layer 3 - Transport Layer
Layer 1 - Data Link Layer
10
Why do packets have a header?
To check the packet with a check sum.
To carry the data, Payload.
To know the source and destination for the packet.
11
Which type of storage device has the fastest transfer speeds?
USB Drive
Hard Disk Drive
CD-RW
Solid State Drive
12
Which of the following is a collection of protocols?
FTP
SMTP
TCP/IP
HTTP
13
What is the job of defragmentation software?
To move files in the system
To remove unwanted files
Rearranging fragments of a program into fewer fragments
To fix broken programs
14
What is an advantage of wireless networking?
Easier to add devices to the network.
Is not affected by objects in the way of the signals.
Requires specialist equipment.
Cheaper to set up.
15
What piece of software is installed on a computer to prevent incoming malware?
Anti-Virus
Anti-Malware
Firewall
Disk Clean-up
16
Which type of network security involves hacking a network to expose its flaws?
User Access levels
Network forensics
Firewalls
Penetration Testing
17
What is a register?
Stores active parts of programs.
A store of data, in the CPU holding a number or instruction.
A Store of data in the CPU with multiple levels.
A small storage of data.
18
What device is this ?
Solid State Drive
Hard Drive
Mother Board
Random Access Memory
19
What is an advantage of using embedded systems?
They are usually smaller than multi purpose computers.
They are usually less powerful.
They can be put inside things.
They are cheaper to buy.
20
Which of the following contains all the sections of the CPU?
Arithmetic Logic Unit, Instant Access Store, Control Unit
Arithmetic Link Unit, Immediate Access Store, Control Unit
Arithmetic Logic Unit, Immediate Access Store, Control Unit
Arithmetic Logic Unit, Immediate Access Store, Command Unit
21
Which of the following do Operating systems not do?
Internet Connectivity
CPU Management
Drivers - Control Inputs/Outputs
Memory Mangement
22
Which of the following is not a feature of an Operating System?
File mangement
User interface
Manages Peripherals
Anti Virus software
23
Which type of Storage is Non-Volatile?
Secondary Storage
Primary Storage
24
What is the purpose of the CU?
To perform Arithmetic and logic operations (AND OR NOT).
Control of the CPU and the Fetch decode execute cycle.
25
Which type of backup is used to, backup new and edited files?
Incremental Backup
Full Backup
26
What is an embedded system?
A device within a device.
A small computer.
A device that has one dedicated purpose.
A device that has multiple purposes.
27
What is the name of the process where secondary storage is used to extend primary storage?
Virtual Memory
Vital Memory
Vivid Memory
Volatile Memory
28
What is utility software?
Is software that manages a computer
Is software that fixes and runs computers
Is software that protects a computer
Is software that configures and maintain a computer
29
Which of the following, holds the memory address that is about to be used by the CPU?
MAR
Accumulator
MDR
Program Counter
30
Which of the following describes Open-Source Software?
The creator provides all updates.
Users cannot edit the programs source-code.
Allows a user to edit a program to fit their need.
Has a large community who fixes software.
31
Which network topology is the internet?
Bus
Star
Ring
Mesh
32
What piece of software is installed on a computer to remove harmful malware?
Anti-Virus
Disk Clean-up
Anti-Malware
Firewall
33
What is the purpose of ROM
To never forget.
To store Boot Up information.
To hold the BIOS.
To store active parts of programs.
34
Which Law; Allows members of the public to access information held by public organisations?
Data Protection Act.
Copyright Designs and Patterns Act
Freedom of Information Act
Computer Misuse Act
35
Which of these describes a partial mesh network?
Very fault tolerant as there are many redundancies.
All nodes are connected to every other node.
Cheaper as not as many connections required.
Some nodes have multiple connections, all have at least one.
36
What unit of storage would be the best to use to represent a HD film on a on a computer?
TB
KB
MB
GB
37
Which network topology is the most common in small businesses?
Ring
Bus
Mesh
Star
38
Which of the following is the correct CPU data requesting order?
Registers, Cache, RAM, SSD/HDD
Registers, Cache, SSD/HDD, RAM
Cache, Registers, SSD/HDD, RAM
Cache, Registers, RAM, SSD/HDD
39
What aspect of performance can Secondary storage have an affect on?
Transfer speeds to network drives.
OS load speeds.
Load speeds of websites.
Storage of more installed programs and data.
40
Which of the following is an advantage of a Mesh network?
Cheap to set-up
Redundant parts in case of failures
Easy to manage
Easier to extend the network
41
What does a DNS Server do?
Resolves domain names to IP addresses
Allows networks to access the internet
Allows users to connect directly to a websites server
Resolves domain names to MAC addresses
42
What is the purpose of the cloud?
To store data.
To allow streaming.
To provide 24/7 access to data and services.
To provide services.
43
Which of the following are not Internet Services?
Streaming audio and Video.
File Sharing.
Emailing.
Applications
44
What Topology is shown in the Image?
Ring
Star
Bus
Mesh
45
Which layer; Is the physical connection on the network, signals are sent here?
Layer 4 - Application Layer
Layer 2 - Network Layer
Layer 1 - Data Link Layer
Layer 3 - Transport Layer
46
Which Law; Protects the data of people who have information stored about them on a computer?
Computer Misuse Act
Freedom of Information Act
Copyright Designs and Patterns Act
Data Protection Act.
47
What does the BIOS allow you to do?
Change the data and time.
Overclock your CPU.
Change fan speeds for the fans connected to the Motherboard
Choose the Boots Device, storing the OS.
48
What is the purpose of the ALU?
Control of the CPU and the Fetch decode execute cycle.
To perform Arithmetic and logic operations (AND OR NOT).
49
Which of the following describes P2P?
Each computer stores and serves data.
Contains a client and a server. One requests and one serves.
50
Which type of attack requires an attacker to forcefully guess a users password?
Brute Force Attack.
Data Interception.
DDOS.
Social Engineering.
51
What is a WAN?
A network over multiples sites or large geographical area.
A network over one site or small geographical area.
52
Which of the following is; a Computers Physical location on a network, described by numbers?
IP address
MAC Address
53
What is the definition of a network?
Connected devices
Communicating devices
Two or more computers connected together to allow sharing.
One or more computers connected together.
54
Which of the levels of Cache has the highest storage?
Level 3
Level 1
Level 2
55
What is a Stakeholder?
Someone who designs technology
Someone who is involved in a decision
Someone who isn't affected by a decision
Someone who is affected by a decision
56
Which of the following is not a Server?
Game Server
NAS
Application Server
Print Server
57
Which of the following attacks involves bots, who provide extreme traffic to a network?
Data Interception.
Brute Force Attack.
DDOS.
Social Engineering.
58
Which is the correct order for units of storage, Smallest to largest?
Byte, KB, MB, GB, TB
Byte, KB, LB, GB, YB
Byte, MB, KB, GB, YB
Byte, MB, KB, GB, TB
59
Which Law; Makes it illegal to share any copyrighted files without the holders permission?
Freedom of Information Act
Computer Misuse Act
Copyright Designs and Patterns Act
Data Protection Act.
60
Which Law; Protects against harmful network attacks?
Data Protection Act.
Copyright Designs and Patterns Act
Computer Misuse Act
Freedom of Information Act
