How does k-anonymity help to protect privacy in micro data sets?

By ensuring that every record in a set is part of a group of "k" records having similar identifying information.
By switching values between records in order to preserve most statistics while still maintaining privacy.
By adding sufficient noise to the data in order to hide the impact of any one individual.
By top-coding all age data above a value of "k."

Answer(s): A

https://www.researchgate.net/publication/284332229_k- Anonymity_A_Model_for_Protecting_Privacy

Which of the following statements describes an acceptable disclosure practice?

An organization's privacy policy discloses how data will be used among groups within the organization itself.
With regard to limitation of use, internal disclosure policies override contractual agreements with third parties.
Intermediaries processing sensitive data on behalf of an organization require stricter disclosure oversight than vendors.
When an organization discloses data to a vendor, the terms of the vendor' privacy notice prevail over the organization' privacy notice.

Answer(s): A