Apparently the answer is C, I hate Comptia I pulled this from the study guide Steganography When a message is buried within another item, such as a photograph or document, it is known as steganography. It is critical in steganography that only those who are anticipating the message are aware that it exists. One approach to steganography is to use a concealing cipher. Digital watermarking is another kind of steganography. Digital watermarking is the process of embedding a logo or brand in papers, images, or other things. The watermarks serve as a deterrent to unlawful use of the content. Changing the least significant bit for each pixel in an image is the most popular method. Pixels are modified in this example in such a modest amount that the human eye cannot notice them.

I'll go with B. Filesystem metadata is data that is associated with a file and stored within the filesystem itself. This can include information such as the file's name, size, creation date, and other details. By adding identifying metadata to the audio files, the business can make it easier to track and identify copies of the files that may have been stolen or illicitly shared. This can be an effective and low-cost approach to theft detection, as it does not require any specialized tools or software. Implementing steganography would not be an effective approach to theft detection, as it involves hiding information within other data and is typically used for covert communication rather than theft detection. Purchasing and installing a DRM (Digital Rights Management) suite would not be a low-cost approach to theft detection, as DRM suites can be expensive and may not be necessary for the business's needs.

Source: Verifying each answer against Chat GPT, my experience, other test banks, a written book, and weighing in the discussion from all users to create a 100% accurate guide for myself before I take the exam. (It isn't easy because of the time needed, but it is doing my diligence)

By adding identifying metadata, the small business can easily track and monitor the use of its audio recordings without incurring significant costs. This can be accomplished using a variety of file formats, including ID3 for MP3 files, FLAC tags for FLAC files, and Vorbis comments for Ogg Vorbis files.

Adding identifying filesystem metadata to the digital audio files would be the most likely technique to meet the business's needs for low-cost theft detection. This approach involves adding a unique identifier or watermark to the digital audio file's metadata, which can help track the source of the file if it is distributed or used without permission. This technique is relatively simple and cost-effective, and does not require any specialized software or equipment. Deep-packet inspection, steganography, and DRM suites are typically more complex and expensive solutions that may not be necessary for a small business with limited resources.

Out of the given options, adding identifying filesystem metadata to the digital audio files would be the most likely technique to meet the business's needs for low-cost theft detection. By adding unique metadata to each audio file, the business could track the source of any unauthorized copies of their files. This technique is relatively simple and low-cost compared to the other options, such as implementing steganography or purchasing a DRM suite.

By adding identifying metadata, the small business can easily track and monitor the use of its audio recordings without incurring significant costs. This can be accomplished using a variety of file formats, including ID3 for MP3 files, FLAC tags for FLAC files, and Vorbis comments for Ogg Vorbis files.

Anyone thinking this is C should give up on a carrier in cyber security.

going with Steganography because of the keyword "detect". if the sentence said "prevent" then I would choose DRM. also, they also mention low cost. I don't like this question and can also see D as an answer, but my gut is telling me C

The answer is C if you want to get it done low-cost.

Implementing steganography (Option C) involves embedding hidden information within the audio files themselves. This can include unique identifiers or watermarks that are difficult to remove without damaging the audio quality. Steganography can help track the distribution of files and identify unauthorized copies.

DRM suite is the only theft detection option

A and C are out instantly. Key word is "low-cost".

The most suitable technique for a small business looking for a low-cost approach to theft detection for the audio recordings it produces and sells would be B. Adding identifying filesystem metadata to the digital audio files. This approach involves adding unique, identifying information to the metadata of each audio file. If these files are found elsewhere (for example, on a file-sharing site), the metadata can be checked. If it matches, it's a strong indication that the file may have been stolen.

B. Adding identifying filesystem metadata to the digital audio files Theft detection

Implementing steganography (Option C) involves hiding information within other non-secret data, such as embedding data within the audio file itself. While steganography can be a method to conceal information, it may not be the most practical or effective solution for basic theft detection in this context. Steganography might help hide information, but it doesn't necessarily provide a robust and easily traceable way to identify and track stolen audio files. Additionally, skilled individuals may find ways to detect and remove the hidden information.

B. Adding identifying filesystem metadata to the digital audio files I have to go with B since the question ask for low cost approach. Stenography is not a low cost approach.