Mobile App Quiz 2

Question 1

HTTP stands for

Answer 1

hypertext transfer protocol

Question 2

through HTTP, a server tells your computer…

Answer 2

how data is being transferred

Question 3

HTTPS stands for

Answer 3

hypertext transfer protocol secure

Question 4

through HTTPS, the server and computer…

Answer 4

communicate and agree upon an encryption before data is transferred

Question 5

is it peer-to-peer/a direct line from you to the server?

Answer 5

no; there are switches, routers, DNS in between

Question 6

what are the 3 different parts of HTTP

Answer 6

www, domain name, TLD

Question 7

www is/stands for

Answer 7

is the web host server

stands for world wide web

Question 8

what does the domain name do?

Answer 8

connects to an IP address (easier than typing out the IP)

Question 9

what does DNS stand for and what does it do?

Answer 9

Domain Name Server; it is basically a phone book of name to IP address

Question 10

what does TLD stand for?

Answer 10

top level domain name

Question 11

what are some examples of TLDs?

Answer 11

.com, .org, .gov, .edu, .mil, .pro

Question 12

what is FQDN?

Answer 12

Fully Qualified Domain Name = web host server + domain name + top level domain name

Question 13

relative links

Answer 13

know how to get to it/pretty much saved to the server; links in the same relative location
../ goes to the parent directory of where you currently are

Question 14

absolute links

Answer 14

exact location of a file generally not found in the server; a link through FQDN - actual URL for the page

Question 15

Google prefers (relative/absolute) links

Answer 15

absolute

Question 16

web components

Answer 16

custom HTML tags, non-standard, for functionality in a webpage; they create modular, self-contained chunks of code

Question 17

DOM stands for ? and is a ? structure

Answer 17

Document Object Model; tree

Question 18

each node on the DOM is

Answer 18

an object representing a part of the document

Question 19

the DOM represents the page so that

Answer 19

programs/scripts (JS) can change the document structure, style, and content

Question 20

ECMAScript 2015 stands for ? and is also known as ?

Answer 20

European Computer Manufacturer’s Association Script; ES6 (this is what we’ll be using)

Question 21

all browsers are configured to ? from what year?

Answer 21

ES5 from 2009

Question 22

ES6 is a standard, which means it is

Answer 22

a set of rules governing JS

Question 23

ES6 introduces

Answer 23

classes

Question 24

modules

Answer 24

sections of code that can export objects (i.e., functions, variables, arrays) and be imported anywhere in your application

Question 25

modules are used heavily in ?

Answer 25

Ionic

Question 26

promise

Answer 26

a JS function; a proxy for a value not necessarily known when the promise is created

Question 27

a promise allows you to

Answer 27

associate handlers with an asynchronous actions eventual success value or failure reason; this lets asynchronous methods return values like synchronous methods (instead of immediately returning the final value, the asynchronous method returns a "promise" to supply the value at some time in the future)

Question 28

callback

Answer 28

any executable code that is passed as an argument to other code

Question 29

block scooping

Answer 29

ES6 allows you to use the let keyword to define a variable only within a block of code (creates a local variable to a block of code or a function)

Question 30

(fat) arrow function

Answer 30

most popular ES6 feature | =>

Question 31

the fat arrow function provides

Answer 31

shorter syntax (no need for the keyword function or return or curly braces, as they are implicit)

Question 32

the fat arrow function is (a/an) ? function that does not have its own ?

Answer 32

anonymous; this, arguments, super, or new.target

Question 33

TypeScript

Answer 33

a typed subset of JS that compiles to plain JS; used in Ionic; it provides (data) types like stricter OOP languages Java or C#

Question 34

transpilling

Answer 34

converting from one language to another

Question 35

ES6 is not supported by all browsers yet so...

Answer 35

Ionic uses a built in transpiler to convert the ES6 code to ES5