Binary Basics
This is what computers fundamentally work with at the lowest level - only two digits.
What is binary (or what are 0s and 1s)?
This is the base of the hexadecimal number system.
What is 16?
This acronym stands for American Standard Code for Information Interchange.
What is ASCII?
This type of compression can perfectly recreate the original data after decompression.
What is lossless compression?
This is the process of scrambling data to keep it secret.
What is encryption?
This is the number of possible values that can be represented with 3 bits.
What is 8? (2³ = 8)
This is the decimal value that the hexadecimal digit 'F' represents.
What is 15?
This is the number of bits ASCII uses to encode a single character.
What is 8 bits (or what is 1 byte)?
This type of compression throws away some data to achieve smaller file sizes.
What is lossy compression?
This is the secret value used to encrypt and decrypt data.
What is a key?
This is the decimal value of the binary number 1011.
What is 11?
This is the base of the number system we use in everyday life with digits 0 through 9.
What is 10 (or what is decimal)?
This is the decimal ASCII value for the letter 'A'.
What is 65?
This is a common lossy compression algorithm used for images.
What is JPEG?
This historical cipher shifts each letter by a fixed amount.
What is the Caesar cipher?
This is the binary representation of the decimal number 13.
What is 1101?
These are the place values in binary, expressed as powers of this number.
What is 2?
This is the process of simplifying complicated data into manageable chunks by creating layers.
What is data abstraction?
These tell the computer which compression algorithm was used to compress a file.
What are file extensions?
In this type of encryption, the same key is used for both encryption and decryption.
What is symmetric key encryption?
This is the number of bits in a byte.
What is 8?
This is the decimal value of the hexadecimal number 43F.
What is 1087?
This is why we need standard encoding protocols like ASCII - to ensure all computers do this with data the same way.
What is interpret (or what is read/understand)?
This is the space savings percentage when compressing from 200 bits to 50 bits.
What is 75%?
In this type of encryption, one key encrypts the data and a different key decrypts it.
What is public key encryption (or what is asymmetric encryption)?