Virtual Labs

How does the LSB technique affect the visual quality of an image after hiding data?

a: It significantly distorts the image Explanation

Explanation

b: It slightly alters the image, but changes are usually imperceptible Explanation

Explanation

c: It improves the image quality Explanation

Explanation

d: It has no effect on the image at all Explanation

Explanation

What is the key advantage of using the LSB technique in Steganography?

a: It allows for large amounts of data to be hidden without detection Explanation

Explanation

b: It makes the hidden data impossible to retrieve Explanation

Explanation

c: It can compress data before hiding it Explanation

Explanation

d: It provides a high level of encryption for the hidden data Explanation

Explanation

Which of the following is a major limitation of LSB-based steganography?

a: It supports only text data Explanation

Explanation

b: It is vulnerable to image compression and transformations Explanation

Explanation

c: It cannot be used with high-resolution images Explanation

Explanation

d: It always requires a secret key for hiding data Explanation

Explanation

Which of these is a distinguishing factor between Steganography and Cryptography?

a: Steganography hides the existence of data, while Cryptography hides the content Explanation

Explanation

b: Steganography uses stronger encryption algorithms than Cryptography Explanation

Explanation

c: Cryptography is less secure than Steganography Explanation

Explanation

d: Steganography works only on images, whereas Cryptography works on all files Explanation

Explanation

Which technique enhances security when using LSB-based steganography?

a: Encrypting the data before embedding Explanation

Explanation

b: Using larger image sizes only Explanation

Explanation

c: Converting images to JPEG before hiding data Explanation

Explanation

d: Avoiding the use of any randomization techniques Explanation

Explanation

In image steganography, which file formats are generally preferred for LSB embedding?

a: JPEG and BMP Explanation

Explanation

b: PNG and BMP Explanation

Explanation

c: GIF and JPEG Explanation

Explanation

d: PDF and DOCX Explanation

Explanation

Data hiding and unhiding: LSB technique