The Internet
There's math in computer science?
Algorithms
It's all just bits
Let's Code
100
Before conducting ecommerce on a site, one should ensure that a safe connection has been established based on the protocol such as https://. In this case, the hypertext transfer protocol is ______.
What is secure
100
DISPLAY (20 mod 4) + 3
What is 3
100
The type of data represented with GIF, PNG, JPEG, BMP file formats.
What is images or pictures
100
The name for the base 2 number system.
What is binary
100
The type of control structure that can be used for making decisions in a program based on the value of a Boolean expression.
What is an if statement (or selection, or branching)
200
The Internet depends on a layered communication system of _______ that manage abstractions.
What are protocols
200
___ distinct numbers can be represented with 9 bits
What is 512
200
The question below uses a robot in a grid of squares. The robot is represented by a triangle, which is initially at the bottom-left square of the grid facing toward the right of the grid. The robot can move into a white or gray square, but cannot move into a black region.
The goal is to move the robot in a grid to a gray square.
Consider the example grid above. Assuming our code segment needs to work when the gray square is anywhere in the top row, which of the following code segments will always get the robot to the gray square?
REPEAT UNTIL (CAN_MOVE (left))
{
MOVE_FORWARD ()
}
ROTATE_LEFT ()
MOVE_FORWARD ()
200
RGB color values mimic the human eye by representing colors using 3 values of ____ bits each.
What is 8 bits
200
The process of placing a loop inside another loop.
What is nesting
300
Websites for a college or university should have this domain extension.
What is .edu
300
HTML uses 6-digit hexadecimal notation for identifying colors on webpages so that the Red/Green/Blue values are each represented by a 2-digit Hexadecimal (16-bit) number. What is the decimal number for the Green color value in the color AC0BFF?
What is 11
300
In determining the best route to take on recent trip, a maps application gave the user three options based on traffic patterns, road construction, and roadways. This term refers to the method for choosing the best alternative among the three possible routes.
What is a heuristic solution
300
You are currently using a certain number of bits, n, to store values. Suppose you increase the number of bits you are using to store values by one. How many more values can you now represent?
two times the number of values
300
The failure to create a correct condition that controls a repeat statement results in this type of programming error.
What is an infinite loop
400
An attempt to deny users access to a Web site's resources by flooding the website with requests from multiple systems.
What is a Distributed Denial of Service (DDoS) attack
400
How many more values can be represented by one hexadecimal digit than one binary digit?
what is 8 times
400
Given the following algorithms, which of the algorithms require both selection and iteration?
I. Given a basket of produce, get the number of pieces of produce in the basket.
II. Given a basket of produce, remove all produce of type vegetable.
III. Given a basket of produce remove all produce of type fruit.
IV. Given an apple and a carrot, return the one that has the type of vegetable.
what is II and III
400
Tiffani has a channel on a popular video sharing site and has over 100 thousand subscribers. After making her latest video and uploading to her channel, she notices that the quality of video better on her home computer than the uploaded version. This is the likely cause of Tiffani’s video quality.
What is lossy compression
400
The following code should display "even" if the positive number num is even.
IF (MISSING CONDITION)
DISPLAY ("EVEN")
Give a Boolean expression that could replace MISSING CONDITION
What is num MOD 2 == 0
500
The system used for translating a web address like www.google.com into an IP address that can be used to connect to the site's server.
What is the Domain Name System (DNS)
500
The binary number 00101101 in base-10.
What is 45
500
Assuming that forward tells a robot to move forward by 10 pixels and turn tells it to turn right by 90 degrees, this shape would be drawn by the following algorithm. forward forward turn forward turn forward forward turn forward turn
What is a rectangle
500
A computer program uses 3 bits to represent integers. When the program adds the decimal (base 10) numbers 5 and 3, the result is 0. Name the type of error that occurred.
What is an overflow error
500
i <- 0
sum <- 0
REPEAT UNTIL i = 4
sum <- sum + i
i <- i + 1
DISPLAY (sum)
What is 6