Module 2

Question 1

Arithmetic operator?

Answer 1

A symbol used to carry out a computation.

Question 2

What are the arithmetic operators?

Answer 2

+, = /, *, %

Question 3

What are the comparative operators?

Answer 3

> =, ==, !=

Question 4

What are the evaluation operators?

Answer 4

and, or, not.

Question 5

Expression?

Answer 5

A combination of values that are computed by the computer.

Question 6

Operand?

Answer 6

The number that is being dealt with in a methematical operation.

Ex: 5 + 6. 5 and 6 are the operand and = is the operator.

Question 7

Data type?

Answer 7

The data type of a data says two things about it:

1. The kind of information.
2. The thing you can do with it.

Question 8

Subscripts?

Answer 8

Text written below a line.

Question 9

What subscripts can be used for?

Answer 9

To indicate the base number system.

Question 10

What are the benefits of the hexadecimal number system?

Answer 10

1. You can display large numbers with fewer characters.
2. Easily translatable into binary.

Question 11

For what hexadecimals are commonly used in computers?

Answer 11

To specify the name of a computer memory address.

Question 12

Number system formula?

Answer 12

DIGIT * BASE ^ position.

Question 13

State?

Answer 13

The condition of a person or thing.

Question 14

Stateless program?

Answer 14

A program that don’t remenber prior events.

Ex: a longin page that don’t remember your username.

Question 15

Stateful program?

Answer 15

It will have a mechanism for keeping track of events as the program is used.

Question 16

Bit pattern?

Answer 16

A particular layout of bits used to represent numbers, character, etc.

Ex: 100 0001 represent the letter “A”.

Question 17

ASCII?

Answer 17

American Standard Code for Information Interchange.

A standard chart that represent characters using binay codes.

Question 18

How many digits ASCII uses to represent each character?

Answer 18

7.

Question 19

UNICODE?

Answer 19

A standard for representing letter and symbols in computers for all languages across the world.

Question 20

Objects have…

Answer 20

State and behaviour.

Question 21

Class?

Answer 21

Describe the states and behaviours of a potential object.

Question 22

Database?

Answer 22

An collection of related data usually organized into tables.

Question 23

Tables?

Answer 23

Data structure made up of rows and collumns.

Question 24

Relational Database?

Answer 24

A database that define a some relation between its tables. This relation affects how the data in the tables is used.

Ex: a table of students names could be related to a table of addresses.

Question 25

RDBMS?

Answer 25

Relational Database Management System.

A type of computer program used to manage relational database.

Question 26

Query?

Answer 26

A specific instruction to a computer to search through a database and collect all data that matches a certain criteria.

Question 27

SQL?

Answer 27

Structured Query Language.

A language to monitor and handle databases.

Question 28

What SQL can do?

Answer 28

Edit, change, modify, delete, etc.

Question 29

T-SQL?

Answer 29

Transact-structured query language.

A language Microsoft made to add additional functionality to SQL.

Question 30

SQL server?

Answer 30

Short for Microsoft Structured Query Language Server.

Is a RDBMS developed by Microsoft.

Question 31

SQL vs SQL server?

Answer 31

SQL is a language and SQL server is a program.

Question 32

GUI?

Answer 32

Graphical User Interface.