Binary & Data
What number system only uses 0s and 1s?
What is binary?
What system translates website names into IP addresses?
What is DNS?
Which screen in App Lab allows you to drag and drop buttons, labels, and images?
What is Design Mode?
What stores information in a program?
What is a variable?
What type of structure stores multiple pieces of data in one variable?
What type of structure stores multiple pieces of data in one variable?
How many bits are in 1 byte?
What is 8?
What protocol is used to load webpages?
What is DNS?
What command changes the screen in an app?
What is setScreen()?
What symbol is used for 'equal to' in a conditional statement in JavaScript?
What is == ?
What loop repeats code a certain number of times?
What is a for loop?
Convert binary 1010 to decimal.
What is 10?
What protocol is used to load webpages?
What is HTTP or HTTPS?
What App Lab block detects when a button is clicked?
What is onEvent()?
What type of statement makes decisions in code?
What is an if statement?
What does list.length tell you?
How many items are in the list.
What is the largest number that can be stored with 4 bits?
What is 15?
What type of cyberattack tricks users into giving personal information through fake emails or websites?
What is phishing?
What is the purpose of an element ID?
To identify and control UI elements in code.
What operator means BOTH conditions must be true?
What is && ?
How many items are in the list.
To save time and reduce repeated code.
Why is lossless compression important for text documents?
Because no data can be lost or changed.
Why does the Internet use multiple routes for data?
For reliability/redundancy if one route fails.
Name one thing that makes an app user-friendly.
Clear buttons, readable text, easy navigation, consistent colors, etc.
What will this code display if score = 95?
if(score >= 90){ console.log("A"); }
What is A?
What is wrong with this code?
for(var i = 0; i <= list.length; i++)
The loop should use i < list.length or it will go out of bounds.