5G and Wireless Communication for Beginners - Understanding Circuit-switched and Packet-switched Networks

The video tutorial discusses the evolution of wireless communication networks from 2G to 4G, focusing on the transition from circuit switched to packet switched networks. It explains the limitations of circuit switched networks and the advantages of packet switched networks, including VoIP applications. The tutorial also covers the pros and cons of packet switching, such as cost efficiency and potential reliability issues, and suggests solutions for improving network performance.

What was a major limitation of circuit-switched networks as internet traffic grew?

• They were too expensive to maintain.

• They couldn't handle the rapid increase in internet traffic.

• They required too much power.

• They were incompatible with modern devices.

How do packet-switched networks manage data transmission?

• By dividing data into packets that can take multiple paths.

• By encrypting data into a single block.

• By using a single dedicated path for each connection.

• By using physical switches for routing.

What is the role of TCP in packet-switched networks?

• It encrypts data for secure transmission.

• It manages the order and delivery of data packets.

• It provides a dedicated path for each connection.

• It compresses data to save bandwidth.

Which of the following is a benefit of using VoIP?

• It eliminates the need for internet access.

• It provides a dedicated line for each call.

• It allows voice and data to be transmitted together.

• It requires less bandwidth than traditional calls.

What is a disadvantage of packet-switched networks compared to circuit-switched networks?

• Increased power consumption.

• Inability to handle voice data.

• Less reliable connections due to non-dedicated links.

• Higher cost of implementation.

Why might packet-switched networks experience latency?

• Due to the lack of physical switches.

• Because packets can take different routes and face delays.

• Due to dedicated links being too slow.

• Because data is not encrypted.

What is one proposed solution to improve packet-switched network reliability?

• Reducing the number of users.

• Increasing the number of dedicated links.

• Enhancing signal strength and bandwidth.

• Switching back to circuit-switched networks.