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WorksheetsUnit 3: Data and Quality of Data
Total questions: 10
Worksheet time: 5mins
Which of the following is a suitable reason for encoding data.
Saves space
Saves time entering the data
Saves storage space
Saves time
Which of the following is an advantage of storing data using ICT?
It is easier
Faster to search for data
Security issues - hacking
Data can be password protected and encrypted
Which of the following is a suitable answers when asked for a disadvantage of storing data using ICT?
Electrocution
Loss of data due to hardware failure
Backing up to a cloud
Training needed to enable staff to access data
Checking that data entered matches the original source is...
Verification
Validation
Validation is...
Checking that data entered matches
the original source
Is a way of checking data is sensible as the data is entered into the system.
Ensures that data is correctly transferred from one location to another
This is a type of validation that specifies data has to be between two values.
Parity check
Range check
Presence check
Format check
When you proof read over data before you submit.
Proof reading
Captcha
Parity check
Format check
This is a type of validation where something has to be entered into a field.
Type check
Presence check
Parity check
Format check
The last one or two digits in a code are used to check the other digits are correct
Presence check
Check digit
Range check
Look-up check
This check ensures that the data sent is the same as the data received when data is transmitted from one computer to another.
Parity check
Visual check
Length check
Range check
