Data Communication Quiz

What term refers to the transmission of data between devices over a network?

• Telecommunication

• Data Compression

• Data Communication

• Data Encryption

Which of the following is NOT a network component?

• Router

• Modem

• Printer

• Switch

Which networking medium transmits data using light signals?

• Coaxial cable

• Twisted pair cable

• Fiber optic cable

• Wireless transmission

What is the primary function of a network interface card (NIC)?

• Data encryption

• Data transmission

• Data compression

• Data storage

How many layers does the OSI model consist of?

• 5

• 6

• 7

• 8

Which OSI layer is responsible for establishing, maintaining, and terminating connections between devices?

• Physical Layer

• Data Link Layer

• Transport Layer

• Session Layer

In a mesh network topology, how many connections does each device have?

• One

• Two

• Multiple

• None

What is the disadvantage of a bus topology?

• Easy to troubleshoot

• Limited scalability

• High installation cost

• Requires complex cabling

Which protocol is responsible for the delivery of data packets from the source to the destination on the Internet?

• TCP/IP

• UDP

• DNS

• SMTP

What is the primary function of the DNS (Domain Name System) protocol?

• Translating domain names to IP addresses

• Securing network connections

• Routing data packets

• Managing email communications