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SMTP – Simple Mail Transfer Protocol: It is an e-mail protocol for sending e-mail messages
across the Internet.
Restart
The computer network means the system of interconnected computers.
The components needed for a network are Network Interface Card, networking cable,
hub or a switch and router.
The different types of networks are PAN, CAN, LAN, MAN and WAN.
Various types of topologies used in a network are bus, star, tree, ring and mesh.
There are two types of computer network architectures—peer-to-peer network and
client-server network.
It is the most popular wireless communication technology used for homes, private
business LANs and public hotspots.
Bluetooth is a technology that enables wireless communication between low-power
consumption devices within a short range.
Protocol is a set of rules that governs the communication between the computers over
a network.
Checkpoint
A. Tick ( ) the correct option.
ü
1. ...................... describes a computer that is connected to a network.
a. Node c. Unit
b. Device d. Attachment
2. A computer network that spans across a city can be called a ...................... .
a. LAN c. MAN
b. WAN d. CAN
3. ...................... can convert the digital data into analog signal and vice versa.
a. Hub c. Router
b. Modem d. LAN Card
4. A computer network that can be used only within an organization is called ...................... .
a. Internet c. Both a and b
b. Intranet d. None of these
Computer Networking 17

