D278 Exam Prep

Which phase of a waterfall approach would create a sequence diagram that specifies the required order of events between completed program components?

Testing

Which phase of an agile approach would define a hypothesis to find a problem in a program?

Testing

Which characteristic specifically describes a markup language?

Tags surround text to describe desired formatting

What is a characteristic of interpreted programs?

They can be modified at run time

Which characteristic specifically describes interpreted language?

They can run on any machine having the right interpreter

What is a coding library?

a set of pre-written functions that carry out common tasks, that programmers can use to improve productivity.

When should a programmer develop an algorithm to solve a problem?

Before writing a program to solve the problem.

What is the main characteristic of Interpreted/Scripting Language

It runs sequential statements by another program called an interpreter (Python, Javascript)

What is a behavioral sequence diagram?

It shows interactions between software components and indicates the order of events.

What is the main characteristic of Object-Oriented Language

It supports decomposing programs into objects (C++, Java, Python, C#)

What is a behavioral diagram?

It visualizes dynamic behavior of a software, such as the flow of an algorithm

What is an advantage of a Compiled Language?

Runs faster than interpreted language

What is an advantage of Interpreted/Scripting Language

Runs on most machines with an interpreter

What are the two behavioral diagrams of UML?

A case diagram and a sequence diagram

What is the structural diagram of UML?

A class diagram

What is the Waterfall Approach?

A program built by carrying out each SDLC phase in sequence

What is the Agile (Spiral) Approach?

A program built by doing small amounts of each SDLC phases in sequence, then repeating the process

What is the main characteristics of a Compiled Language?

A program which is converted by a compiler into machine code which runs on particular machines (C++, Java)

What is a characteristic of a Markup Language?

Allows a developer to describe a document's content, formatting

What is a characteristic of compiled language?

Converts to machine language before running

What are the equivalent UML diagrams used in SDLC phases? 1. Analysis 2. Design 3. Implementation 4. Testing

A Case Diagram, a Class Diagram, Flowchart (Activity Diagram), and a Sequence Diagram (respectively)

What are the three diagrams that UML consists of?

A structure diagram, a behavioral diagram, a sequence diagram

Which phase of a waterfall approach defines a program's goals?

Analysis

What are the four phases of SDLC?

Analysis, Design, Implementation, and Testing

Which language is not built on object-oriented design principles?

C

SDLC - Define the Testing Phase

Checks that the program correctly meets goals

Define Library Functions

Functions that relate to the same purpose (i.e., teacher, student, grades)

SDLC - Define the Analysis Phase

Defines a program's goals

SDLC - Define the Design Phase

Defines specifics of how to build a program

Which phase of an agile approach would create a list of components needed to build an online auction site?

Design

Hierarchical Debugging

Dividing the statements into regions and inserts one debug output statements after each region

What is a characteristic of Interpreted/Scripting Language

Dynamically typed - changing variables

Which data type is used for items that are measured in length?

Float

What relationship is common among a programming library's functions?

Functions all relate to the same purpose.

What is a popular Markup Language?

HTML: describes texts, links, images, and other features

Which phase of an agile approach would create an executable program?

Implementation

What does a programmer do first to use an existing programming library?

Include the library

Which data type should be used to keep track of how many planes are in a hanger?

Integer

SDLC - Define the Implementation Phase

Involves writing the program

What is a behavioral Case diagram?

It is used to visually model how a user interacts with a software program

What is a structural class diagram? And what does class mean?

It is used to visually model the classes of a computer program. A class is a code blueprint (flowchart) for creating an object

A language uses tags around text to indicate how that text should be formatted. Which characteristic describes a language having such tags?

Markup

A language substantially supports a programmer creating items like person, teacher, and students. Each item has internal data and some operations. Which characteristic describes that language?

Object-oriented

What is the return value of a function?

Output of a function

Which language is dynamically typed?

Python

A programmer wants a compiler to report an error if an integer variable is assigned with a string. Which type of language should the programmer use?

Statically Typed

What is a characteristics of a Compiled Language?

Statically-typed - constant variable declaration

What is SDLC?

The System Development Life Cycle is the development phases of programs

What is an advantage of using a programming library?

The code has already been tested.

What is the purpose of parentheses () in a programming expression?

To group expressions

What does UML mean and what is its definiton?

Univeral Modeling Language is a model for software design that uses different types of diagrams to visualize the structure and behavior of programs

What is a valid user-defined function name?

Variable identifier

What is a structural diagram?

it visualizes static elements of software, such as the types of variables and functions used in a program