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WorksheetsComputer Science Quiz
Total questions: 24
Worksheet time: 12mins
Which of the following best describes a full system backup
Only files that changed since the last backup are copied
Only user documents are copied
Every file on the system is copied
Only files selected by the user are copied
Which backup strategy minimises storage space while still allowing full system recovery
Full backup every time
Incremental backups after an initial full backup
Manual copying of selected files
Storing backups on the same device that is being backed up
A school backs up its servers daily to an off site storage facility. What is the main reason for using off site backups
Faster upload speed
To protect data from local disasters
To allow student access
To save bandwidth
Which task is performed by an operating system
Designing websites
Managing memory and processes
Editing spreadsheets
Writing HTML
Which option describes application software
Manages hardware
Provides services like user account control
Programs designed to perform user tasks
Controls the CPU clock cycle
What is the decimal value of the binary number 101101
45
44
32
29
Which hexadecimal value is equal to decimal 255
F0
FF
AF
1F
Which output does the logic gate combination produce for inputs A=1, B=0 in the expression X = A OR NOT B
0
1
Impossible to determine
Input error
A LAN is best described as
A network spanning multiple countries
A network in a limited area such as a building
A wireless version of the internet
A direct connection between two devices
Which device forwards data between different networks
Switch
Router
Repeater
Hub
What is the output of x = 17 MOD 5
2
3
5
1
A trace table is mainly used to
Compile code
Test logic step by step
Encrypt data
Analyse network packets
Which pseudocode correctly counts how many times “blue” appears in an array colours
count = colours
count = count + 1 when colours[i] = blue
repeat colours
print colours
Given array A = [4, 8, 6], what is the average
5
6
8
7
A nested loop is
Two loops that repeat at the same time
A loop inside another loop
A loop that only repeats twice
A loop that runs without stopping
Which statement correctly describes server side scripting
Code executed in the browser only
Code executed on the web server before sending results to the user
A script that only styles a webpage
A script used only for downloading files
Which protocol is responsible for transferring web pages
FTP
SMTP
HTTP
SSH
What does a URL identify
Only the IP address
The location of a resource on a network
Only a DNS entry
The name of a server without location
What is the main purpose of FTP
Viewing websites
Transferring files to and from a server
Encrypting a webpage
Ranking search results
A web crawler
Deletes outdated web pages
Searches websites automatically and downloads content
Writes HTML code
Only visits pages requested by users
Indexing is the process of
Browsers storing cookies
Search engines organising information into data structures
Users bookmarking web pages
Websites blocking crawlers
Ranking is used to
Sort search results based on relevance
Assign IP addresses to websites
Store user history
Validate URLs
What describes the deep web
Websites found on page 10 of Google
Sites that refuse to use HTTPS
Content not indexed by search engines
Malicious websites only
Which behavior describes a white hat developer?
Breaking into systems for personal gain
Fills the site with multiple popular key words?
Builds a useful website with good content?
Stealing user passwords
