Computer Science Principles Unit 2 Review

Computer Science Principles Unit 2 Review

Fill in the Blank

A group of connected computers that can send or receive data is

.

Fill in the Blank

A machine that can run a program is a

.

Fill in the Blank

A sequence of direct connections is a

.

Fill in the Blank

A group of computers working together for a common purpose is a

.

Network

• fault tolerant = lines can be cut but network still works (it can tolerate the faults being broken)

• redundancy allows tolerance

Multiple Choice

How many paths (lines) connect A to B?

• 1

• 2

• 3

• 4

• 5

Multiple Choice

Device C is attempting to send data over the Internet to Device G. Which of the following is true of how the data will travel through the network?

• data always takes the shortest path

• data will not travel through E

• any path is possible

Internet Protocols

open and used by all devices connected to the network - SCALES FOR MORE DEVICES

Multiple Choice

Packet metadata is used to route and reassemble information travelling through the Internet.

• false

• true

Multiple Choice

Which of the following is true about how the packets will arrive at a computer?

• sent/received in same order

• all reach computer or none reach it

• may arrive out of order

• packets out of order are sent back to server

Multiple Choice

_______ provide a unique number for identifying devices that send and receive information on the Internet.

• TCP/IP

• IP addresses

• metadata

• packets

Multiple Choice

What does this image portray?

• IP addresses

• meta data

• packets

• HTTP

Multiple Choice

Which of the following Internet protocols is used to request and send pages and files on the World Wide Web?

• Transmission Control Protocol (TCP)

• Internet Protocol (IP)

• User Datagram Protocol (UDP)

• HyperText Transfer Protocol (HTTP)

Digital Divide

• limiting access to the internet/info

• high costs of installation/devices

• non-standard protocols

Multiple Choice

What is NOT an outcome of the digital divide?

• all political groups can agree on digital regulations

• all people will have greater access/influence

• racial/enthnic groups have unequal access to technology