Unit 2 Sections 1-4 Quiz

What is the primary function of a computer network?

• to store data

• to connect devices for communication

• to process information

• to create software

Which device is used to connect different networks together?

• switch

• router

• modem

• hub

What is the main purpose of an IP address in a network?

• to encrypt data

• to identify devices

• to store files

• to manage bandwidth

Which protocol is primarily used for sending emails?

• HTTP

• FTP

• SMTP

• DNS

How does firewall protect a computer network?

• By increasing internet speed

• By blocking unauthorized access

• By storing backup data

• By providing cloud services

What is bit rate?

• the number of bits transmitted per second

• the amount of data stored on a disk

• the speed of a computer processor

• the size of a computer screen

Which unit is commonly used to measure bandwidth?

• Kilograms

• Meters

• Hertz

• Bits per second

How does increasing bandwidth affect data transmission?

• It decreases the speed of data transfer

• It increases the speed of data transfer

• It has no effect on data transfer speed

• It reduces the amount of data that can be sent

If a video stream has a bit rate of 5 Mbps, what does this mean?

• 5 million bytes are transmitted per second

• 5 million bits are transmitted per second

• 5 thousand bits are transmitted per second

• 5 bits are transmitted per second

Which factor can limit the effective bandwidth of a network?

• the color of the network cables

• the length of the network cables

• the type of data being transmitted

• the number of devices using the network simultaneously