Quiz on Steganography and Data Hiding

What is steganography primarily used for?

• To encrypt data

• To hide information within other messages

• To compress files

• To analyze data

Which of the following is a technique used in steganography?

• Data recovery

• Data encryption

• Least Significant Bit (LSB) replacement

• File compression

What does the term 'steganography' derive from?

• Latin words meaning hidden writing

• French words meaning coded message

• Greek words meaning secret writing

• German words meaning concealed data

Which of the following is NOT a common image file format used in steganography?

• JPEG

• PNG

• TXT

• GIF

What is the main goal of watermarking?

• To hide messages

• To provide proof of ownership

• To encrypt data

• To compress images

Which method is the most popular for hiding messages in images?

• Least Significant Bit (LSB) replacement

• Grille ciphers

• Null ciphers

• Masking and filtering

What is the primary difference between steganography and cryptography?

• Cryptography is used only for images

• Steganography is faster than cryptography

• Cryptography hides the existence of a message, while steganography obscures its meaning

• Steganography hides the existence of a message, while cryptography obscures its meaning

What does LSB stand for in the context of steganography?

• Least Significant Bit

• Last Significant Byte

• Low Security Bit

• Least Secure Bit

Which of the following is a characteristic of a null cipher?

• It uses complex algorithms

• It mixes plaintext with non-cipher material

• It is only used in images

• It requires a key for decryption

What is the purpose of a file header in image files?

• To compress the image

• To provide information about the file type and size

• To store the image data

• To encrypt the image