Software Engineering

Question 1

What is a sequence diagram?

Question 2

What is the difference between unit testing and integration testing?

Question 3

What does RESTful API stand for?

Answer 3

REepresentative State Transfer API

Question 4

What is RESTful API?

Answer 4

A way of accessing web services in a simple / flexible way without processing.

Question 5

What does RESTful API do?

Answer 5

It is used to fetch / provide information from / to a web service using only HTTP requests.

Question 6

What is an HTTP request?

Answer 6

A request is sent from client to server in the form of a web URL as HTTP GET or POST or PUT or DELETE request. After that, a response comes back from the server in the form of a resource like JSON file.

Question 7

What are the 5 most common HTTP requests?

Answer 7

GET, POST, PUT, PATCH, DELETE

Question 8

What does HTTP GET perform?

Answer 8

Returns a representation of a resource in JSON or XML and a response code (ex: 404 if not found)

Question 9

What is a Simple Factory?

Answer 9

The simple factory is essentially a class that, based on a given input, returns objects of different types.

Question 10

What is the Factory Method Design Pattern?

Answer 10

Defines an interface for creating an object, but lets subclasses decide which one to instantiate

Sprint 3

Question 11

What is the Client-Server Model?

Answer 11

The client-server model is the architecture of a computing model in which multiple clients request and receive service from a centralized server

Question 12

What is MVC Design Pattern?

Answer 12

a software architecture pattern that separates an application into three distinct components: the Model (data and business logic), the View (user interface presentation), and the Controller (handling user input and updating the model and view accordingly)

Question 13

What is a design pattern?

Answer 13

A general repeatable solution to a commonly occurring software design problem.

Question 14

What is strategy design pattern?

Answer 14

Defines a family of algorithms, encapsulates each one, and makes them interchangeable.

Question 15

When would you use Strategy Design Pattern?

Question 16

When is Factory Method applicable?

Answer 16

-When a class can’t anticipate the objects it must create
-wants its subclasses to specify the object
-You want to localize the knowledge of which subclass is the delegate.

Sprint 3

Question 17

What is the Template Method Design Pattern?

Answer 17

-Defining the skeleton of an Algorithm in operation, deferring some steps to subclasses.
-Subclasses can redefine certain steps without changing the algorithms structure.

Question 18

When is Template Method applicable?

Answer 18

-subclasses should be able to extend the base algorithm without altering its structure
-you have several classes that do similar things with only minor differences