Leson 1-1 INTRODUCTION TO NETWORK COMMUNICATIONS

Question 1

What is the purpose of Networks?

Answer 1

Facilitate data sharing and communication between devices.

Enable access to shared resources and internet connectivity.

Question 2

What are the types of Transmission Media?

Answer 2

Bounded: Copper Cables (e.g., Twisted Pair, Coaxial) for wired connections.

Bounded: Fiber Optic Cables for high-speed data transmission.

Unbounded: Wireless Signals (e.g., Wi-Fi, Cellular Networks) for mobile and remote access.

Question 3

What are the types of Endpoints in a Network? List 3

Answer 3

Servers (e.g., Web, File, Email Servers) to provide centralized services.

Computers (e.g., Desktops, Laptops) as primary user devices.

Mobile Devices (e.g., Smartphones, Tablets) for portable connectivity.

Question 4

What are 3 examples of Redistribution Points in a Network?

Answer 4

Hubs for basic signal retransmission in a network.

Routers for directing traffic at the network layer.

Switches for managing traffic at the data link layer.

Question 5

What are the types of Network Topology Considerations ?

Answer 5

-Bus, star, ring, mesh, tree, and hybrid topologies
*affect layout, and performance

-Choice of Topology
* impact network, scalability, redundancy, and maintenance

Question 6

What are Network interface cards (NICs)?

Answer 6

A hardware component that allows computers to connect to a network and send and receive data with other devices.

In devices for network connectivity

Question 7

What is the purpose of an Access point?

Answer 7

For extending wireless network coverage

Question 8

What’s the purpose of Firewalls?

Answer 8

For securing networks against unauthorized access and threats