CST336 Final Summer 2019

When writing web apps that connect to a database, how can SQL Injection be prevented?

• By avoiding using single quotes as part of the SQL statement

• By encrypting all values in the database

• By hashing the values submitted by the user

• By using the POST method in the form

What is true about functions in JavaScript?

• By default, JS doesn't wait for a response from a function before moving on to execute another one.

• All functions in JS are always executed in sequential order

• JS always wait for a response from a function before moving on to execute another one.

• All JS functions must have at least one parameter

What is a callback function?

• is a function that is to be executed after another function has finished executing

• It's a function that calls another function

• is a function that is to be executed before another function has finished executing

• s a function that runs at the same time as another function

What is true about callback functions?

• Any function passed as an argument is a callback function.

• Callback functions cannot be nested

• Callbacks are the best approach to deal with asynchronous functions

• Callback functions do not have any parameters

What is true about the Await keyword? (select all that apply)

• It stops the execution of all code after it.

• To use "await", the function declaration must use the keyword async

• It must be use within a callback function

• It can be used only once within a function

What is a "Web Server"? Select the most accurate answer.

• A computer connected to the Internet that sends files upon requests.

• Software that controls how web users access hosted files

• A group of computers connected to the Internet and running Unix

• Can refer to both, hardware or software (first two choices)

What is the protocol that browsers use to view web pages?

• HTTP

• FTP

• SMTP

• TCP/IP

When the a browser needs a resource which is hosted on a web server, what does the browser send to the server?

• A Response

• A Request

• A Petition

• A Demand

When the web server sends a file or data to the browser, what is it called?

• A Response

• A Request

• A Petition

• A Demand

What HTML tag creates the largest heading?

• <h1>

• <h2>

• <h5>

• <h6>