Basic Concept of Network

Define computer network.

• A collection of computers and devices in a large area that allow user to communicate.

• A collection of computers and devices connected together via communication devices & transmission media.

• A collection of computers and devices in a large area that allow user to send and receive information via modem.

• A collection of computers and devices that have ability to communicate each other.

What is a communication device?

• any type of harware that can be used to connect other devices together.

• any type of hardware capable of transmitting data, instruction and information between a sending device and a receiving device.

• Any type of hardware that is attached to a computer that can only be used to send instruction to pheriperals.

• Any type of hardware that can be used digital transmission via transmission media.

What is a Transmission Media?

• Digital signals that is used to carry data and information.

• A process of sending and receiving data between communication devices.

• Materials or substances capable of carrying one or more signals.

• Digital signals or information that is carried through special material or substance

Which of the following is not a Communication device?

• Network Interface Card

• Router

• Modem

• Fiber Optic Cable

Transmission media can be in a form of ______A_______ or ______B______.

• A: Wired

  B: Wireless

• A: Physical

  B: Invisible

• A: Copper Wire

  B: Radio Signal

• A: USB cable

  B: WiFi

Which of the following is Not a transmission media?

• Fiber Optic cable
• Celullar Radio Signal
• Microwave 
• Infrared light

Which of the following transmission media has the largest bandwidth?

• microwave
• Celullar Radio Networks
• Fiber Optic cables
• Twisted pair cable

This type of transmission media sends signals or data through radio waves

• Wired transmission media

• Wifi transmission media

• Wireless transmission media

• 4G transmission media

Choose one of the activities listed below that does not need a computer network.

• Buying an item from an online store

• Sharing a picture on the web

• Drawing money from the ATM machine

• Buying soda drink from a vending machine.

Coomunication device is any type of hardware

capable of transmitting

data, instructions, and information

between a sending device and a receiving device.

Give examples of sending device.

(answer can be more than one)

• laptop

• smartphone

• modem

• printer