Bit by Bit
A single on/off or 0/1 in a computer's transistor
What is a bit?
The practice of scrambling data so that it is unreadable to anyone except those who know how to decode it
What is Cryptography?
In cybersecurity competitions, the acronym CTF stands for this
What is Capture the Flag?
This keyboard key is used to autocomplete commands or filenames in Linux
What is Tab?
The symbol used to redirect output to a file, overwriting the file if it exists
What is '>'?
The name for the base-16 number system
What is Hexadecimal?
The technical term for data that has already been encrypted
What is Ciphertext?
The practice of hiding secret messages inside an image or another text file
What is Steganography?
This specific Linux command is used to wipe the terminal screen clean
What is 'clear'?
The symbol used to add data to the end of an existing file without deleting the old data
What is '>>'?
Of Megabyte, Terabyte, Kilobyte, and Zilobyte, this is the one that is NOT a real measure of computer storage.
What is a Zilobyte?
A historic cipher in which the alphabet is shifted left or right a specific number of spaces
What is the Caesar Cipher?
Data about a file that is embedded within the file itself, such as the date taken or GPS location
What is Metadata?
The Linux command used to search for a specific word or phrase inside a file
What is 'grep'?
The command 'ls > myFiles.txt' performs this action
What is saving the list of files to 'myFiles.txt'?
The system which represents alpha-numeric data in a computer, such as A = 65
What is ASCII?
A technique used to break substitution ciphers by analyzing how often specific letters appear in the message
What is Frequency Analysis
Of Hex Editor, Exif Viewer, and Vigenere Table, this is the tool that is NOT used for Steganography
What is a Vigenere Table?
A file containing a list of Linux commands that can be run as a program
What is a script?
Of the paths 'Documents/file4.txt' and '/home/admin/Documents/file4.txt', this one is the relative path.
What is 'Documents/file4.txt'?
The process of representing a range of characters by a conversion system, like ASCII
What is Encoding?
A substitution cipher that uses multiple alphabets and a keyword to switch between them
What is the Vigenere Cipher?
This type of steganography tool is used to view the metadata of an image file, displaying information about the picture itself.
What is an Exif Viewer Tool?
The command 'sort -r' will sort a list in this specific order
What is reverse alphabetical order?
An absolute path in Linux always begins with this directory
What is the root (or '/')?