Unit 4 Cryptography and Linux

To add data to an existing file you can use the append symbol which is

Which of the following commands is used to save a list of your files and directories into a new file named myfiles.txt?

Which of the following is the base 16 number system?

One-time Pad uses a pre-shared key only once which makes this encryption method..

A historic cipher in which the alphabet is shifted left or right a given number of spaces.

The data that has been encrypted is called...

Using the simplest Caesar cipher, decode the following ciphertext. DZCFS

Which of the following will share activities that recently took place?

Which of the following is the base 16 number system?

Which of the following is a relative path from the current location to file4.txt?(refer to image below)

A method of encryption when the letter order is changed. ie; Scytale cipher, where a ribbon is wrapped around a cylinder

The information about a file that is embedded in the file, such as date, location, size, etc

When you type in pwd it will give you the

CTF stands for

A single on/off or 0/1 in a computer's transistor is known as a

What does the the following command do? sort -r animals.txt

How many bits are there in a byte?

A small program of Linux commands that can perform tasks on a computer is called

True or False: Linux CLI is case sensitive

Scrambling data so that it is unreadable to anyone except those who know the trick to decoding it is...

Which of the following is not a measure of the number of bytes in a computer?

To use autocomplete when typing in a command in Linux you can use which key

The standard output is to the screen, but you can redirect the output to go to a file by using which of these symbols?

The system which represents alpha-numeric data in a computers, such as A = 65 = 01000001 is called:

Which of the following is NOT a tool for steganography?

Representing a range of characters by some kind of conversion system, like ASCII, is called:

This is a technique used to solve substitution ciphers based on commonly used letters and words.

Which of the following commands is used for searching for a word or phrase in a file in Linu

What does the following command do? grep -i dog animals.txt

To clear your screen in Linux you can

Which of the following is an absolute path from root to file2.txt? (refer to image below)

A substitution cipher using multiple alphabets, a system to switch between them & password. A table/chart is often used.

The practice of hiding messages in an image or text is called...