Data Communications and Network Models Quiz

What are the components of data communications?

• Computers, Printers, Scanners, Keyboards

• Cables, Routers, Servers, Hubs

• Data, Signals, Protocols, Hardware

• Software, Internet, Modems, Switches

Which network type covers a small geographical area and is usually confined to a single building or site?

• MAN

• SAN

• LAN

• WAN

What is the function of encapsulation and decapsulation in data communication?

• Adding and removing headers

• Converting data into bits

• Ensuring data integrity

• Routing data to the correct destination

Which model is known for its 7-layer architecture and is often compared with the TCP/IP model?

• Ethernet Model

• Internet Model

• TCP/IP Model

• OSI Model

What is the main protocol suite used for the Internet and most local area networks?

• FTP/IP

• SMTP/IP

• HTTP/IP

• TCP/IP

What is the primary function of a router in a computer network?

• Forwarding data packets to the correct destination

• Converting data into bits

• Ensuring data integrity

• Adding and removing headers

Which networking device is used to connect multiple computers in a local area network?

• Switch

• Router

• Modem

• Hub

What is the purpose of a firewall in a computer network?

• Filtering network traffic to prevent unauthorized access

• Transmitting data between different networks

• Converting data into bits

• Ensuring data integrity

What is the main protocol used for email communication over the Internet?

• FTP/IP

• SMTP/IP

• HTTP/IP

• TCP/IP

What is the purpose of a modem in a computer network?

• Converting data into bits

• Filtering network traffic to prevent unauthorized access

• Transmitting data between different networks

• Connecting to the internet via telephone lines