Hardware
What piece of hardware provides input for command line interfaces?
The keyboard.
(Or a mouse, technically, but that's not the answer I want)
What does this line of code, written in Java, do?
System.out.println(“hello world”);
It prints “hello world” to the command line.
What does an AND gate (operation) do?
It returns a signal (true) if and only if both inputs are powered (true).
When did the internet become available for public use?
1991
What does “WWW” in a url stand for?
World Wide Web
What common cable type transmits both graphics and sound?
HDMI (or DisplayPort (again) technically)
What style language is regularly used alongside HTML?
Cascading Style Sheets (CSS)
What is the truth table for a NOT gate (operation)?
Input 1 | Output
T | F
F | T
What is the most visited website in the world?
What does “CPU” stand for?
Central Processing Unit
What piece of hardware stores short-term memory?
RAM
What is the output of this block of code?
int x = 10;
if (x > 10) { return true; }
else { return false; }
The output is false.
What value does this expression return?
(T AND NOT(F))
It returns T (true).
What does a 404 error mean?
It means that the server could not find the requested webpage.
What does “HTML” stand for?
Hyper Markup Text Language
Which piece of hardware has more storage? RAM or SSD
SSD (Solid State Drive)
Which language is the most common today for data analytics?
Python
What does an XOR gate (operation) do?
It returns a signal if and only if the two inputs are different (one try and one false).
What is the difference between domains and hosting with regard to websites?
A domain is the address of website.
Hosting is the service that makes a website available online.
What does “RAM” stand for?
Random Access Memory
Which piece of hardware is the graphics card directly connected to in a PC?
The motherboard.
When needing to generate results with information from two tables with SQL, what must first be done with the two tables?
They must be joined. (ex. SELECT * FROM table_1 JOIN table_2)
What value does this expression return? (T is true and F is false)
(T AND F) OR (F XOR T)
It returns T (true).
How much does the internet weigh?
Less than 2oz (57g). Think one strawberry. That is the weight of all of the electrons in motion that make up the internet.
What does “SQL” stand for?
Structured Query Language