AS & A Level Information Technology (9626) — May–June 2025, Paper 33

Network protocols are sets of rules that determine how data is transmitted on a network so that devices can communicate with each other. Describe the use of each of these network…

A project to build a new government building is starting. The project's life cycle starts with the initiation stage and ends with the project close stage. (a) Describe the tasks…

A system specification is written when a new system is to be designed and developed. Describe the purpose of the system specification.

A mobile (cell) phone service provider is sending emails to all of its customers. The email informs each customer of changes to their individual contract. Justify the use of mail…

A blockchain is a list of records linked securely together. Blockchains contain the records and the cryptographic hashes used to secure the records. (a) State one other item of…

Data may have to be prepared by transformation and cleaning before it can be analysed. (a) Describe two reasons why data transformation is necessary.

Compression is applied to digital images for many reasons. Evaluate the use of compression on digital images.

Peer-to-peer electronic monetary systems can be used instead of cash money to make payments. Describe the advantages and disadvantages of peer-to-peer electronic monetary systems.

Cloud computing is used by banking organisations. Describe the drawbacks to banking organisations of using cloud computing.

Individuals and businesses can use a virtual private network (VPN) to create a point-to-point connection between two computing devices over a public telecommunication system.…

(a) Explain how 3D printing can have a positive impact on the environment.