Review/revision
Question 3.2 - VPN
A bank use a virtual private network (VPN) to enable employees who are working remotely to access files that are held on the banks servers. (a) State two technologies that are required to provide a virtual...
Review/revision
Question 3.1 - Different types of networks
A school has a local area network (LAN). The administration staff in the school use a wired network that uses ethernet cabling and students and teachers use wireless networking (WiFi). (a) Identify one...
Review/revision
Question 2.4 - Hexadecimal and colours
Colours can be represented by a computer as a combination of the three primary colours: red, green and blue. Numerical values are used to represent each primary colour. Each of these values are stored...
Review/revision
Question 2.3 - Truth table to logic diagram
Question 2.2 Paper 1 HL/SL Draw the logic diagram represented by the following truth table: [4 marks] Draw Draw the logic diagram represented by the following truth table: Draw - Represent by means...
Review/revision
Question 2.1 - Logical expression to truth tables
Question 2.1 Paper 1 HL/SL Construct a truth table for the logic expression:A NAND (B NOR C) Construct a truth table for the logic expression:A NAND (B NOR C) Construct - Display information in a diagrammatic...
Activities
1.1 Planning and System Installation - Answers
1. A software company has been asked by a warehouse manager to design a computer system that allows them to mange stock, suppliers, customers and deliveries. the first step the software company want to...
Activities
Topic 4.1 - General principles - Answers
1. Place the following recipe instructions for cheese on toast in the correct order. Place the cheese on top and place it under the grill for a while Eat Slice some cheese When bread has turned into...
Activities
Topic 3.1 - Wireless networking - Exercises
1. Identify the following devices. 1. A school is planning on introducing a school wide public WiFi network for use by staff, students and parents. Evaluate the pros and cons of this decision. 2. The...
Activities
Topic 3.1 - Data transmission - Exercises
1. Define the term protocol and outline why protocols are necessary for effective network communication. 2. A student wants to copy a file across the network to a folder on a server. The video size...
Activities
Topic 3.1 - Network fundamentals - Exercises
1. Match the type of network to the correct definition. 2. Network standards can be considered as either formal or de facto. Examples of formal network standards are HTTP, TCP/IP, Ethernet IEEE 802.3....