An encryption scheme is __________ secure if the ciphertext generated by the scheme does not contain enough information to determine uniquely the corresponding plaintext, no matter how much ciphertext is available.
Fill in the blank(s) with the appropriate word(s).
unconditionally
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• there are m points and K clusters, • half the points and clusters are in “more dense” regions, • half the points and clusters are in “less dense” regions, and • the two regions are well-separated from each other.
Suppose that for a data set • there are m points and K clusters, • half the points and clusters are in “more dense” regions, • half the points and clusters are in “less dense” regions, and • the two regions are well-separated from each other. (a) Centroids should be equally distributed between more dense and less dense regions. (b) More centroids should be allocated to the less dense region. (c) More centroids should be allocated to the denser region. Note: Do not get distracted by special cases or bring in factors other than density. However, if you feel the true answer is different from any given above, justify your response.
__________ is the most common method used to conceal small blocks of data, such as encryption keys and hash function values, which are used in digital signatures.
A) Symmetric encryption B) Data integrity algorithms C) Asymmetric encryption D) Authentication protocols
What is the best chart to use to show data changes over a period of time or comparisons among items?
A) Pie B) Line C) Column D) Doughnut
Give an example of shielded twisted pair (STP) cabling.
What will be an ideal response?