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WorksheetsJ277 - Revision 2024
Total questions: 45
Worksheet time: 26mins
A musician's recordings have an average file size of 3MB. The musician has 1000 recordings.
Calculate an estimate of the storage space in GB that the 1000 files will require. (Assume that they are 3MB each in size.
Identify the largest file size
0.2 GB
400 MB
4300 KB
4,000,000 bytes
Identify the correct description of sound sampling
The frequency of the wave is measure ia set number of times each second
The amplitude of the wave is measured at set intervals
The digital sound wave is measured a set number of times each second
The analogue sound wave's resolution is measured at set intervals
Convert 230 into 8-bit binary
Convert the following hexadecimal number A9 into denary:
What is a correct example of IPv4
192.168.1.300
400.200.400.900
192.168.1.34
192.168.100.100.2
What is the result of the following binary addition:
10101010
01000111
Which of these is a characteristic of a LAN?
It covers a wide geographical area
Computers are connected together using a leased line or a satellite
Users can share files and peripherals
Data can only be transmitted at a very slow rate
Which of these is a characteristic of a WAN?
It covers a small geographical area
Normally has a lower bandwidth than a LAN
It is contained within one building
Users are not able to share files and peripherals
Which of these is a benefit of a peer-to-peer network?
Antivirus scans can be run across all computers from one computer
All software updates can be run across all computers from one computer
All computers can be maintained from one computer
Files and peripherals can be shared
Question 4: Which of these statements is true?
A client-server network has a central computer that provides services to the rest of the network
A client-server network is cheap and easy to set up
A client-server network cannot be used to share files
Each computer on a client-server network is maintain separately
Which protocol is responsible for transferring computer files between client and server on a computer network?
SMTP
FTP
TCP/IP
HTTP
What is a network protocol?
A shape of a network, such as star
A set of rules for sharing data
The requirements for passwords, such as length
The size of a network, such as WAN
Which protocol is used for sending emails?
FTP
IMAP
SMTP
POP3
How many colours can a bitmap using 2-bit colour depth contain?
2
4
8
16
Defragmentation will aim to…..? (Select two)
Make more space on the hard drive
Move files further apart from each other
Move files closer together
Move free space closer together
Lossy Compression is…..?
Usually performed on text
When some original data is lost, and the original file cannot be re-created
The original file can be re-created from the compressed file
Turning the text into a format that only a reader with a key can decrypt it
Software that consists of programs that perform administrative tasks, such as checking computers components to determine whether each is working properly, is called
application software
operating system
utility software
translators
Which of the following is an advantage of file compression? Click all that apply
Files can be sent quicker
Files can be uploaded and downloaded quicker
Files take up less storage space
Why is secondary storage needed?
Because it can hold data that can be easily accessed.
Because it can hold data that can be quickly processed.
Because it can hold data that can be easily modified.
Because it can hold data that can be retained when switched off.
Which characteristic measures the resistance of a storage device to external factors?
Cost
Reliability
Durability
Capacity
The cache memory...
does any maths or logic problems for the CPU
stores frequently used instructions close to the CPU
sends out control signals for the CPU
holds specific data for the fetch-decode-execute cycle
The main computer components are:
Input/Output/CPU/Main memory
CPU/Main memory/Secondary storage
Input/Output/CPU/Main memory/Secondary storage
CPU/Main memory/Secondary storage
Which of these does not affect the performance of the CPU
The number of instructions in a program
The clock speed
The number of Cores
The Cache size
The number of cores in a computer goes up from 2 to 4 - What is the exact effect on the performance?
Perforamance decreases
The maximum number of instructions executed per second doubles
The maximum number of instructions executed per second quadruples
The maximum number of instructions executed per second is quartered
What items will be stored in ROM and not RAM (tick multiple options)
The BIOS
Embedded software firmware/software
The Operating System
The bootloader
Which type of User Interface contains Windows, Icons, Menus, and Pointers?
Command Line Interface
Graphical User Interface
Menu Interface
No User Interface
The following is not a type of Systems Software
Device Drivers
Utility Programs
Applications
Operating Systems
