node.js

Question 1

what does node.js allow you to do

Answer 1

build scalable network applications using js on the server-side

Question 2

noje.js provides what for v8 JS runtime

Answer 2

a wrapper

Question 3

why is node.js fast

Answer 3

written mostly in C

Question 4

what can you build with node

Answer 4

websocket server (chat, file uploads, ad server, any real-time app

Question 5

is node a framework

Answer 5

no

Question 6

is node multi-threadeded

Answer 6

no

Question 7

blocking code

Answer 7

statement blocks the initation of the next step

Question 8

non blocking

Answer 8

waits for beginning cal to finish termed a “callback” (parallel)

Question 9

node flow

Answer 9

request>even check loop until trigger>then goes to callback

Question 10

event types

Answer 10

request connection close

Question 11

typical blocks

Answer 11

calls out to web services
read/writes on the db
calls to extensions

node was meant to make all code non blocking