CCEA A-Level Digital Technology A2 1 Information Systems overview quiz quiz
16questions. Pick an answer and you'll see why right away.
Which type of network connects devices over a large geographic area, often using links the organisation does not own?
In which topology does every device connect to a central switch or hub?
What is the single point of failure in a bus topology?
What is the role of TCP within the TCP/IP suite?
A parity check on transmitted data can:
What does a primary key do in a relational database?
A table is in third normal form (3NF) when it is in 2NF and:
Which SQL keyword removes records from a table?
What is the main purpose of adding an index to a database field?
Referential integrity ensures that:
In a multi-user database, record locking is used to:
Which component of an expert system applies the rules to the facts to reach a conclusion?
Which is a benefit of cloud computing for an organisation?
Data mining is best described as:
Which 'V' of big data refers to the speed at which data arrives and must be processed?
Gaining access to a computer system without permission is an offence under which legislation?