Question

b. explain three reasons for choosing this computer over others mentioned in question 1a. (2 marks)\
explain the main difference between real - time and point - making emails.\
explain the main difference between quality and augmented reality. (2 marks each)\
question 2\
a. research what is meant by blockchain technology and how it could revolutionize data security and privacy in future smart devices. (2 marks)\
b. describe the internet protocol suite, based on the following.\
i. data transmission\
ii. networking hardware\
iii. connection types\
iv. ip addresses and dns\
(2 marks each)\
question 3\
explain how data is transmitted over the internet using tcp/ip protocols. (5 marks)\
explain why without an isp we would be unable to connect to the internet. (3 marks)\
note!!!

Explanation:

1. Question 1 - b: Reasons for choosing a computer over others could include better performance (e.g., faster processor for quicker task - completion), better build quality (durable materials for long - term use), and more user - friendly software (intuitive interface for ease of use). The main difference between data and augmented reality could be that data is raw information, while augmented reality overlays digital information onto the real world.
2. Question 2 - a: Blockchain technology is a decentralized, distributed ledger that records transactions across multiple nodes. In future smart devices, it could revolutionize data security and privacy by providing secure, transparent, and tamper - proof storage and transfer of data.
3. Question 2 - b:

• i. Data transmission in networking hardware involves sending data from one device to another over a network. For example, a router forwards data packets between different networks.
• ii. Connection types can be wired (e.g., Ethernet cables for stable, high - speed connections) or wireless (e.g., Wi - Fi for mobility).
• iii. IP addresses are unique numerical identifiers for devices on a network, while DNS (Domain Name System) translates domain names (e.g., google.com) into IP addresses.

1. Question 3: Data is transmitted over the internet using TCP/IP protocols. TCP (Transmission Control Protocol) breaks data into packets, numbers them, and ensures reliable delivery. IP (Internet Protocol) is responsible for routing these packets to the correct destination. Without an IP, we couldn't connect to the internet because IP addresses are needed to identify and locate devices on the network, enabling communication between them.

Answer:

1. Question 1 - b:

• Three reasons for choosing a computer: better performance, better build quality, user - friendly software.
• Main difference: Data is raw information; augmented reality overlays digital info on real world.

1. Question 2 - a: Blockchain is a decentralized, distributed ledger. In smart devices, it can enhance data security and privacy.
2. Question 2 - b:

• i. Sending data between devices over a network.
• ii. Wired (e.g., Ethernet) and wireless (e.g., Wi - Fi).
• iii. IP is a device identifier; DNS translates domain names to IPs.

1. Question 3: TCP breaks data into packets and ensures delivery; IP routes packets. Without IP, no device identification for internet connection.