Briefly describe how to use steganography for creating digital watermarks.
What will be an ideal response?
ANSWER: The term steganography comes from the Greek word for“hidden writing.”It’s defined as hiding messages in such a way that only the intended recipient knows the message is there.
In addition to steganography, digital watermarking was developed as a way to protect file ownership. Some digital watermarks are designed to be visible—for example, to notify users that an image is copyrighted. The digital watermarks used for steganography aren’t usually visible. For example, when viewing two files that look the same, but one has an invisible digital watermark, they appear to be the same file. Their file sizes might even be identical. However, if you run an MD5 or SHA-1 hash comparison on both files, you’ll find that the hash values aren’t equal.
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The output from the show ipv6 eigrp topology command lists an entry with two numbers listed inside parentheses—for example, (2172416/28160). What is the second number?
A) Advertised distance B) Metric C) Feasible distance D) Reported distance
You just turned off a printer to maintenance it. What should you be careful of when removing the fuser?
a. The fuser releasing toner b. The fuser being wet c. The fuser being hot d. The fuser being fragile