Question 1: Describe the main features of a star topology in a network. How does data travel between two computers in this setup?

Answer: In a star topology, all devices are connected to a central hub or switch. Data from one computer is sent to the hub, which then forwards it to the destination computer. Communication is managed through the central device.

Question 2: Identify which network topology is being described: 'All devices are connected in a closed loop, and data travels in one direction around the loop.'

Answer: This describes a ring topology.

Question 3: List two advantages and two disadvantages of using a bus topology in a network.

Answer: Advantages: Easy to set up, cost-effective for small networks. Disadvantages: If the main cable fails, the entire network crashes; performance decreases as more devices are added.

Question 4: Draw a simple diagram of a bus topology. Label the main cable and three connected devices.

Answer: A horizontal line representing the main cable, with three vertical lines branching off to small circles or boxes representing devices. Label the main cable as 'Bus' and each device accordingly.

Question 5: Complete the truth table for an AND logic gate with two inputs, A and B.

Answer: [A, B, Output] A | B | Output ---|---|------- 0 | 0 | 0 0 | 1 | 0 1 | 0 | 0 1 | 1 | 1

Question 6: Draw the logic circuit for an OR gate with inputs A and B. Use symbols for logic gates.

Answer: A circuit with two input lines feeding into an OR gate symbol (a curved shape with two inputs on the left), and one output line. Label the inputs as A and B, and the output as 'Output'.

Question 7: Explain the difference between a mesh topology and a star topology.

Answer: In a mesh topology, each device is connected directly to every other device, providing high redundancy and reliability. In a star topology, all devices connect to a central hub or switch, making it easier to manage but less fault-tolerant if the central device fails.

Question 8: Sketch a hybrid network that combines star and bus topologies. Indicate which parts are star and which are bus.

Answer: A large central bus line with several star-shaped clusters branching off, each cluster containing multiple devices connected to a central point. Label the main bus and the star clusters.

Question 9: Complete the truth table for a NAND gate with two inputs, A and B.

Answer: [A, B, Output] A | B | Output ---|---|------- 0 | 0 | 1 0 | 1 | 1 1 | 0 | 1 1 | 1 | 0

Question 10: Describe how data would travel in a mesh topology if one device wants to send information to another device.

Answer: In a mesh topology, the device can send data directly through a dedicated connection to the target device, or via multiple pathways if necessary. This provides multiple routes, increasing reliability.

Question 11: Sketch a simple star topology network. Include a central device and four other devices connected to it.

Answer: A central circle or square representing the hub/switch, with four lines radiating outwards to four smaller circles or boxes labeled as devices. All devices connect directly to the central device.