Lesson 2

Question 1

Job of a computer?

Answer 1

TO take in data, manipulate it, and spit out that same data in a different way.

Question 2

Who was Alan Turing?

Answer 2

A British engineer who created a code breaker machine. Basically a computer.

Question 3

What is data?

Answer 3

They are raw facts.

Question 4

What two categories can data be divided into?

Answer 4

Quantitative or numbers and Qualitative or descriptive.

Question 5

What is information?

Answer 5

It is processed data that posses context, relevance, and purpose. Information uses involves manipulation of the raw data to obtain an purpose.

Question 6

What is knowledge?

Answer 6

It is collection of human beliefs or perceptions. Knowledge is information that facilitates action.

Question 7

What are the 2 categories of Knowledge?

Answer 7

Explicit and tacit

Question 8

What is explicit knowledge?

Answer 8

knowledge that is expressed as words or numbers

Question 9

What is tacit knowledge?

Answer 9

knowledge that includes intuition and insight. It is hard to communicate. Tacit knowledge can be knowing that being good at math can help you become successful.

Question 10

What is Wisdom?

Answer 10

It is the combination of knowledge and experience to have a deeper understanding of a topic.

Question 11

Order knowledge, wisdom, data, and information correctly in order from least to most cumulative.

Answer 11

Data -> information -> knowledge -> wisdom

Question 12

What is a database?

Answer 12

taking data and applying context to allow the user to draw conclusions.

Question 13

What is a relational database?

Answer 13

Data organized into tables/relations.

Question 14

What is a Boolean?

Answer 14

a data type with only two possible values like yes or no.

Question 15

Paragraph text?

Answer 15

Used to store data longer than 256 characters.

Question 16

What is text?

Answer 16

stores non-numeric data for under 256 characters.

Question 17

What is an object in a database?

Answer 17

A data type that allows storage of data that cannot be entered using the keyboard such as an image.

Question 18

Who created the internet?

Answer 18

DARPA who was created by the united states government.

Question 19

Why was the internet created?

Answer 19

to ensure that the U.S. wouldn’t be surprised again as the USSR launched a satellite called Sputnik into space. This was during the cold war when both countries wanted to obtain information and militaristic advatanges.

Question 20

Internet meaning?

Answer 20

interconnected network of networks.

Question 21

More networks were made for different organizations who all used different protocols. This led to communication problems. What was the solution?

Answer 21

The creation of the Transmission Control Protocol/Internet Protocol.

Question 22

Packet definition?

Answer 22

Fundamental unit of data transmitted over the internet.

Question 23

Switch definition?

Answer 23

A network device that connects multiple hosts together and forwards packets within a LAN.

Question 24

Router?

Answer 24

A device that receives and analyzes packets and then routes them towards a destination.

Question 25

Ip address?

Answer 25

every device on the internet has a unique identifying number called an IP.

Question 26

Domain name?

Answer 26

A domain name is a human friendly term to reach a website instead of typing in an IP address.

Question 27

DNS?

Answer 27

DNS means domain name server or system. It acts as the directory of websites on the internet

Question 28

Protocol?

Answer 28

A protocol is the set of rules that governs how communications work on a network.

Question 29

What is the WWB?

Answer 29

The world wide web is simply a part of the internet. It is made up of HTML pages that are viewed on web browsers.

Question 30

What does Metcalfe’s Law do?

Answer 30

Describes the power of networking. The value of a network is equal to the square of the number of users connected to it. 10 users is a value of 100.

Question 31

what is Cryptography?

Answer 31

Study of secreting writing such as codes and ciphers.

Question 32

What are the 3 parts of the Information security triad?

Answer 32

Integrity, availability and confidentiality.

Question 33

Integrity

Answer 33

Assurance that information being accessed has not been altered.

Question 34

Availability?

Answer 34

information can be accessed and modified by anyone who is authorized to do so.

Question 35

Confidentiality?

Answer 35

Only those who need or authorized to see information can access it.

Question 36

What is authentication?

Answer 36

A way to identify someone. Such as through a password, a card, or biometrics.

Question 37

What is encryption?

Answer 37

Process of encoding data upon storage so only authorized people can see it.

Question 38

Firewalls?

Answer 38

A hardware firewall is a device that connects to the network and filters packets based on rules. A software firewall runs on an operating system and intercepts packets coming into the computer.

Question 39

What is the Caesar cipher?

Answer 39

used by Caesar and means to just shift text by a specific amount.

Question 40

What is the Vigenere Cipher?

Answer 40

Used by the confederates. Uses the number of letters after a specific letter. For example A is the letter and COD is the key. Wed would be W+2 = Y, E + 14 = S, D + 3 = G

Question 41

What is ethics?

Answer 41

A set of moral principles.

Question 42

What is intellectual property?

Answer 42

Property that derives from the work of a mind.