ICT Lesson 4 - Computer Networks

How many layers are there in the OSI Reference Model?

• 9

• 7

• 5

• 4

Which network model is the least secure?

• Local Area Network (LAN)

• Mainframe/Terminal Network

• Peer to Peer (P2P) Network

• Client/Server Network

Which device is used to connect LANs to each other?

• Gateways

• Access Points

• Hubs

• Routers

Which of the following describes a local area network (LAN)?

• Computers connected within a small geographic area

• A network connection within a large city

• Used to share information with external businesses or individuals

• The protocol used for sending outgoing e-mail

What is formed when Bluetooth devices are paired with one another?

• Local Area Network (LAN)

• Wide Area Network (WAN)

• Metropolitan Area Network (MAN)

• Personal Area Network (PAN)

Which network topology is connected by a single network device?

• Bus

• Star

• Ring

• Mesh

Which network device sends data to every device that is connected to it?

• Router

• Switch

• Hub

• Modem

Which is the largest type of network?

• Wide Area Network (WAN)

• Metropolitan Area Network (MAN)

• Home Network

• Local Area Network (LAN)

Which protocol is used to connect to the Internet?

• POP

• SMTP

• TCP/IP

• IMAP

What is an Intranet?

• The global network used to transfer data all over the world

• A network used exclusively by internal employees of a company

• A group of computers connected within a small geographic area

• A network used to share information with external businesses or individuals