What is the relationship between HTML and HTTP?

HTML is used to create websites, and HTTP transmits them

What is the function of metadata in TCP packets?

To help reassemble packets in order

Which of the following is an example of a POST request? Asking a librarian for a book, Sending login credentials to a server, Viewing a webpage, Downloading a file

Sending login credentials to a server

Which of the following best describes a GET request?

It retrieves data from a server.

Which of the following is a reason to use lossy compression? You want the compressed file to be larger than the original. You want the highest quality audio file possible, with no modifications. You want the highest quality image file possible, with no modifications. You want to save space and are not concerned if the file is the highest quality possible.

You want to save space and are not concerned if the file is the highest quality possible.

Hiding the complexity with something simpler

When visiting a museum Sue takes a photo of a painting with a smartphone which stores the photo as an image file. Which of the following best describes the differences between the painting itself and the photo of the painting stored on the smartphone?

The photo is a digital representation of the analog painting

Which of the following is true regarding the way information is transmitted on the Internet? Options: Information flows on a dedicated direct connection from the sender's device to the receiver's device using binary electrical signals., If a single packet is dropped, the entire file must be resent., Because of the reliability of the Internet, packets always arrive in the same order they were sent., Information does not travel in one piece, but rather as a datastream of packets.

Information does not travel in one piece, but rather as a datastream of packets.

What is the main function of a router?

Forward data from one device to another

A chunk of data sent over a network. Larger messages are divided into packets that may arrive at the destination in order, out-of-order, or not at all.

Domain Name System (DNS)

the system responsible for translating domain names like example.com into IP addresses

What is the difference between Lossy and Lossless compression?

Lossless compression will usually reduce a file size less than Lossy compression.

What is fault tolerance?

The ability of a system to continue functioning properly in the event of the failure of some of its components.

Computer Science Flashcard Flashcards

Student preview

51 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What does binary represent?

Back

Information using only two options

2.

FLASHCARD QUESTION

Front

What do computers read binary in?

Back

0’s and 1’s

3.

FLASHCARD QUESTION

Front

What is the maximum value that can be represented with 8 bits?

Back

255

4.

FLASHCARD QUESTION

Front

What is the result of rounding errors in computing?

Back

Errors due to lack of precision

5.

FLASHCARD QUESTION

Front

What happens to the quality of a photo when the sample size is larger?

Back

It improves

6.

FLASHCARD QUESTION

Front

What is citizen science?

Back

The public collecting data for study.

7.

FLASHCARD QUESTION

Front

What is an example of a citizen science project?

Back

Counting birds seen on the way to work

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