Big Idea 4

Question 1

Computing System

Answer 1

when various types of computing devices work together for a use

Question 2

Network

Answer 2

when at least two devices are connected and can send and receive data

Question 3

Paths

Answer 3

connections between devices

Question 4

Routers

Answer 4

computing devices along a path that send the information along to the next stop on the path

Question 5

Internet

Answer 5

a network of networks

Question 6

Data Streams

Answer 6

information transmitted via the internet.

Question 7

How data is sent through the internet

Answer 7

the information is broken into somewhat equally sized packets, each with its attached destination and where it will be placed. the packets are sent to the destination in different routes (looks for the fastest rout). the packets arrive out of order and some may be missing. the missing ones are recalled and then all the packets are assembled.

Question 8

IP Address

Answer 8

Internet Protocol Address. when a device connects to the internet, it is given this address so that the internet knows where to route information

Question 9

Protocols

Answer 9

set of rules for transmitting and receiving data. all companies have a common protocol that MUST be used.

Question 10

TCP/IP (Transmission Control Protocol, internet protocol)

Answer 10

TCP creates the packets at the sending location and reassembles them at the receiving one. after the receiving of the packets or not receiving, TCP also sends and acknowledgment back to the sender. IP moves the packets through the network to their target location

Question 11

UDP (user datagram protocol)

Answer 11

Similar to TCP/IP BUT doesn’t send a confirmation message back to the sender when the packets are receives. you will not know if all the data was received. but it is faster.

Question 12

Redundancy

Answer 12

duplicity in the internet by providing multiple path between devices. If one point goal down, the traffic will be redirected to another path.

Question 13

Fault Tolerant

Answer 13

Internet has many connections and paths to allow the ability to work around problems.

Question 14

Abstract

Answer 14

we don’t know where all the internet connection are or how the paths are determines. they just work.

Question 15

World Wide Web

Answer 15

application that runs on the internet. WWW is a collection of web pages, documents, ad files written in HTML. way to search for and share documents.

Question 16

HTTP

Answer 16

Hypertext Transfer Protocol. Protocol used by WWW to control how web page data is requested, sent, and received from browsers and servers where the web pages are stored.

Question 17

HTTPS

Answer 17

should be used for any secure trnsaction

Question 18

Types of Processing

Answer 18

Sequential - operations executed one after the other. cannot scale. not very efficient (total time = taskA + taskB)

Parallel - program code is separated into smaller sections and executed among separate computers which each run their sequential steps. there is a limit though to its scalability where efficiency is barely improved. (total time = longest task)

Distributed - data is spread across multiple computers. each computer runs the same program on its section of data at the same time. the results are passed to parent computer to combine as one output.

Question 19

Speedup of parallel

Answer 19

divide time it took to process the problem sequentially / the time it took to complete it in parallel)

Question 20

Bandwidth

Answer 20

The maximum amount of data that can be sent in a fixed period of time over a network connection, typically measured in bits per second.

Question 21

Host

Answer 21

computer in a network

Question 22

Routing

Answer 22

the process of finding a path from sender to receiver