WJEC GCSE ICT Unit 3 - Validation and Verification

What is an automatic computer check to make sure data entered is sensible and reasonable known as?

• Double entry
• Verification
• Validation

What validation type would make sure a post code was entered in the correct format?

• Length check
• Format check
• Presence check

What validation type would you use to check that numbers fell within a certain range?

• Range check
• Presence check
• Check digit

What validation type checks that a field is not left blank?

• Format check
• Length check
• Presence check

What validation type uses the last one or two digits to check the other digits are correct?

• Length check
• Format check
• Check digit

What validation type checks a minimum number of characters have been entered?

• Length check
• Format check
• Range check

An error message saying "The pupil must be aged between 11 and 16" is an example of a

• Range check

• Lookup check

• Format check

• Presence check

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?

• Hacking

• Loss of data due to hardware failure

• Viruses

• Training needed to enable staff to access data