02 Section 6 - Testing

Question 1

What types of programming errors can occur?

Answer 1

Syntax errors

Logic errors

Question 2

What is a syntax error?

Answer 2

When the compiler or interpreter doesn’t understand something you’ve typed because it’s doesn’t follow the grammar or rules of the programming language

Question 3

What is a logic error?

Answer 3

When the compiler or interpreter is able to run the program, but the program does something unexpected

Question 4

What can diagnose syntax errors?

Answer 4

Compilers or interpreters

-they’ll be unable to turn the source code into machine code and a syntax error will be returned

Question 5

What can diagnose a logic error?

Answer 5

More difficult to diagnose since compiler and interpreters won’t pick them up
-they are found through the general use of the program and by systematically testing it using a test plan

Question 6

What is the aim of testing a program before it is released?

Answer 6

To see if the program actually meets its initial requirements

Question 7

What are the different types of testing?

Answer 7

Functionality testing
Performance test
Usability test
Security test
Load/Stress test

Question 8

What is functionality testing?

Answer 8

Seeing whether their is logic errors and whether the program works as you’d expect
-this shouldn’t be left until the end of the process

Question 9

What is performance testing?

Answer 9

Tests how quickly certain features run and their impact on computer resources

Question 10

What is usability testing?

Answer 10

Tests how user-friendly the interface and features are

Question 11

What is security testing?

Answer 11

Tests vulnerability to attacks and how securely data is stored

Question 12

What is load/stress testing?

Answer 12

Tests how it copes under extreme conditions (e.g. loads of users at one time)

Question 13

What are the stages of the software development cycle?

Answer 13

• Requirements
• Design
• Implementation
• Testing
• Maintenance

Question 14

What happens at the requirements stage of the software development cycle?

Answer 14

What does the consumer want the program to do?

Question 15

What happens at the design stage of the software development cycle?

Answer 15

How will the program meet the requirements?

Question 16

What happens at the implementation stage of the software development cycle?

Answer 16

Writing the program for the specific design

Question 17

What happens at the testing stage of the software development cycle?

Answer 17

Does the program meet the requirements?

Question 18

What happens at the maintenance stage of the software development cycle?

Answer 18

Program is output but continued updates are needed

Question 19

What types of testing will impact the software development cycle?

Answer 19

Final testing

Iterative testing

Question 20

What is final testing?

Answer 20

Program only goes through the development cycle once

• all the required features of the program are added at the same time
• program is tested against their initial requirements

Question 21

What is iterative testing?

Answer 21

The program will go through the development cycle a few times

• idea is to match what the customer really wants
• the requirements at the first cycle might only include the main features, at the start of each cycle the requirements are adjusted

Question 22

What is a test plan?

Answer 22

A test plan will outline exactly what you are going to test and how you are going to test it. It should cover all possible paths through a program.
-Should be made before implementation

Question 23

What three categories should appear on a test plan?

Answer 23

Normal data
Extreme(boundary) data
Erroneous data

Question 24

What is normal data?

Answer 24

things that a user is likely to input into a program

Question 25

What is extreme data?

Answer 25

values at the limit of what the program should be able to handle

Question 26

What is erroneous data?

Answer 26

inputs that the program should not accept

Question 27

What columns should you have on a test plan table?

Answer 27

Type of data
Test data
Reason for testing
Expected outcome

Question 28

What columns should you have on an actual testing table?

Answer 28

Type of data
Test data
Reason for testing
Expected outcome
Actual outcome
Pass or Fail