Full Stack Review

Question 1

What are the three parts of a standard HTML element?

Answer 1

• Opening tag, content, and closing tag.

Question 2

TRUE or FALSE: Some HTML elements are self closing and do not have a closing tag.

Answer 2

TRUE

Question 3

What is an HTML attribute?

Answer 3

-An attribute is used to provide additional information about an HTML element

Question 4

Where does an attribute go inside of an HTML element?

Answer 4

• It always goes in the opening tag.

Question 5

What does the <title> tag define in an HTML document?

Answer 5

• The <title> tag defines the title of the page that appears in the browser tab.

Question 6

What are the two types of lists in HTML?

Answer 6

• The two types of lists in HTML are ordered and unordered lists.

Question 7

What is the type attribute used for in the <input></input> tag?

Answer 7

-Type attribute is used to specify the type of input field such as text, email, password, etc.

Question 8

What attribute and value do I give an anchor element to have the link open in a new tab?

Answer 8

-target=_blank

Question 8

Where are the three places you can place your CSS to have it inserted into your HTML?

Answer 8

-External, Internal, Inline

Question 9

TRUE or FALSE: I can have as many HTML elements with the same id attribute value as I want.

Answer 9

FALSE

Question 10

How many HTML elements can have the same class applied to them?

Answer 10

-There is no limit

Question 11

What value do you pass to the border-radius property to make an element appear circular?

Answer 11

-50% or more

Question 12

What is the difference between absolute and relative units?

Answer 12

-Absolute units are fixed size. Relative units are relative to other values

Question 13

When the position of an element is set to relative, it allows you to specify how CSS should move the element relative to what?

Answer 13

-Its current position/relative to its current position in the normal flow of the page

Question 14

Absolute positioning locks an element in place relative to what?

Answer 14

-Its closest positioned ancestor

Question 15

Fixed positioning locks an element in place relative to what?

Answer 15

-The browser window

Question 16

In order to give links more meaning to those using a screen reader. Your link text should:
_________________

Answer 16

Be brief, but descriptive. Like “go to google.com” or “Learn more about us here”

Question 17

After setting the width of a picture, what setting should be given to its height property in order to maintain its original aspect ratio?

Answer 17

height: auto;

Question 18

Percentages are relative to the size of the parent container element, whereas viewport units are relative to what?

Answer 18

The viewing device’s viewport dimensions

Question 19

If I want to change an HTML element into a grid or flex container, which property do I need to set the value of?

Answer 19

display

Question 20

Which axis runs parallel to the direction of the value of your flex-direction property?

Answer 20

main axis

Question 21

Which axis runs perpendicular to the main axis?

Answer 21

cross axis

Question 22

What are 4 of the 7 basic types of data in JavaScript?

Answer 22

Boolean, Number, String, Symbol, Object, Null, Undefined

Question 23

TRUE or FALSE: If an initial value is not specified when a variable is declared, the variable’s initial value is undefined.

Answer 23

TRUE

Question 24

Given the following code, What will be logged to the console? function len(name){ console.log(name.length) } len(“Alan Turing”)

Answer 24

11

Question 25

Which array method adds an item to the end of an array?

Answer 25

.push()

Question 26

Fill in the blanks. Looking at code Example # 2 above, the variable on line 1. has a __________ scope, and the variable on line 4. has a scope __________ to the function myFun().

Answer 26

global, local

Question 27

The two ways to access the contents/properties inside of an object are ___________ notation and _____________ notation.

Answer 27

Dot notation and Bracket notation

Question 28

Math.random will generate what in JavaScript

Answer 28

A random decimal between 0 and up to 1

Question 29

When using constructors what are the two functions that allow us to retrieve an object’s property, and (re)define an object’s property?

Answer 29

Getters, and Setters

Question 30

What method is used to print output to the browser console?

Answer 30

console.log()

Question 31

When the code from above is run, it does not behave as expected. What common mistake was made on line 10?

Answer 31

The function call is missing opening and closing parenthesis

Question 32

Which brackets are used to denote/indicate an object in JavaScript?

Answer 32

{ } curly braces

Question 33

In JavaScript objects can have a special type of property, called a method. Methods are properties that are what?

Answer 33

Functions

Question 34

What does the DRY programming principle stand for?

Answer 34

Don’t repeat yourself

Question 35

What is the difference between Imperative Code and Declarative Code?

Answer 35

Declarative declares what to be done using methods, Imperative gives the computer a set of statements to perform a task

Question 36

What is a computer algorithm?

Answer 36

A sequence of steps that is followed to achieve a particular outcome

Question 37

To write an algorithm, you must first ________ the problem, and then solve it with coding.

Answer 37

Understand

Question 38

What does the .filter() method do?

Answer 38

Creates a new array with all elements that pass the test implemented by the provided function

Question 39

What bootstrap class can be added to text elements in order to horizontally center them?

Answer 39

text-center

Question 40

What Bootstrap class can be added to a button element to make that button’s width 100% of its parent?

Answer 40

btn-block

Question 41

What does ‘SASS’ stand for?

Answer 41

Syntactically Awesome StyleSheets

Question 42

__________ is an Open Source view library created and maintained by Facebook.

Answer 42

React

Question 43

Because class is a reserved word in JavaScript. Instead, JSX uses __________.

Answer 43

className

Question 44

In React, you can pass _______ to child components.

Answer 44

props

Question 45

One of the most important topics in React is _________. This consists of any data your application needs to know about, that can change over time.

Answer 45

state

Question 46

You can inject Javascript code into JSX by placing your code between __________.

Answer 46

{...} curly braces

Question 47

What does D3 stand for?

Answer 47

Data driven documents

Question 48

When a group of elements are selected, D3 returns a(n)?

Answer 48

array

Question 49

What D3 method is used to set a class to an element?

Answer 49

attr()

Question 50

What does SVG stand for?

Answer 50

Scalable Vector Graphics

Question 51

What D3 method is used to add labels to graphed data?

Answer 51

.text()

Question 52

What D3 method is used to set the font-size of labels?

Answer 52

.style()

Question 53

What is API short for?

Answer 53

Application Program Interface

Question 54

What is JSON short for?

Answer 54

JavaScript Object Notation

Question 55

When using XMLHttpRequest method what keyword do we use to send data to an external source?

Answer 55

POST

Question 56

What is the benefit of an asynchronous call over a synchronous call?

Answer 56

-Pages load faster. -Requests and transfers happen in the background and do not interrupt what the user is doing. -Only part of the page refreshes when the browser receives new data.

Question 57

What is the purpose of the package.json?

Answer 57

It stores information about your project.

Question 58

package.json only has two required fields; ________ and ________, but it’s good practice to provide additional information about your project that could be used to future users or maintainers.

Answer 58

name version

Question 59

What information is in the dependency section of the package.json file?

Answer 59

The required packages for the project your working on

Question 60

What is Node.js?

Answer 60

Node.js is a JavaScript runtime that allows developers to write backend (server-side) programs in JavaScript.

Question 61

What does express do?

Answer 61

Express runs between a Node.js server and the front end of a project. It creates the routes between the front-end and the back-end.

Question 62

What does app.listen(PORT) do?

Answer 62

It causes the server to listen on the specified port

Question 63

What are the static assets of an app?

Answer 63

Stylesheets, images, and scripts

Question 64

What are four common http methods?

Answer 64

GET, POST, PUT, DELETE

Question 65

What type of database is MongoDB?

Answer 65

Non-relational or “NoSQL” database

Question 66

What is Mongoose and what does it provide to model application data?

Answer 66

Object Data Modeling library (ODM) Schema-based solution

Question 67

What does CRUD stand for?

Answer 67

Create, Read, Update, Delete

Question 68

What method is used to check if a variable or function is defined? assert.doesExist

Answer 68

assert.isDefined

Question 69

How can you assert that the value given actually matches a regular expression?

Answer 69

assert.match

Question 70

Which method will assert that a value is contained within an array

Answer 70

assert.include

Question 71

What does it mean to serialize your data?

Answer 71

Convert its content into a small key

Question 72

Which of the following is the definition of Authentication Strategy?

Answer 72

Way of Authenticating Users

Question 73

Instead of directly saving your users passwords as plain text you want to save the hash. Which package will allow you to hash a password?

Answer 73

bCrypt