Steganography and Data Hiding Techniques DFE Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A forensic examiner is analyzing a BMP image file. The examiner suspects that hidden data was inserted into the least significant bits of the pixel values. Which tool would be most appropriate to use to detect this type of hidden data?

   • AWireshark
   • BSteghide
   • COpenStego
   • DStegdetect
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   Which of the following is an example of text steganography?

   • AUsing whitespace at the end of lines to encode a message
   • BEmbedding data in the timing of network packets
   • CHiding data in the echo of an audio file
   • DHiding data in the least significant bits of a pixel
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   What is the primary goal of steganalysis?

   • ATo create steganographic files
   • BTo compress files to save storage space
   • CTo encrypt data to prevent unauthorized access
   • DTo detect the presence of hidden data in a carrier
   Reveal Solution Discussion Select an answer first
5. 9expert · hard

   A forensic analyst is investigating a case where a suspect is suspected of using audio steganography to exfiltrate data. The analyst has a WAV file that is suspected to contain hidden data. The analyst runs a steganalysis tool that detects anomalies in the audio signal. However, the analyst is not sure if the anomalies are due to steganography or just normal audio compression artifacts. Which approach would best help confirm the presence of hidden data?

   • ARun the audio through a spectrum analyzer to look for unusual patterns
   • BCompare the audio file to a known clean version of the same recording
   • CUse a tool like Steghide to attempt to extract data from the audio file
   • DCheck the file size against the expected size for the duration and quality
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A forensic examiner is analyzing a PNG image that is suspected of containing hidden data. The examiner has access to OpenStego and Stegdetect. Which tool should the examiner use first to detect the presence of hidden data?

   • ANeither, because steganography in PNG is undetectable.
   • BBoth tools simultaneously, because they complement each other.
   • CStegdetect, because it is designed for detecting steganography in images.
   • DOpenStego, because it can extract hidden data.
   Reveal Solution Discussion Select an answer first