The interval between two consecutive transits of the sun is called the solar day. a. true b. false Universal Coordinated Time, abbreviated UTC, is the basis of all modern civil timekeeping. a. true b. false Flat transactions are the simplest type of transaction and are most often used. a. true b. false An advantage of having only application-level solutions for clock synchronization (event ordering) is that a developer can better concentrate on issues that affect the core functionally of the application. a. true b. false A major design issue for distributed data stores is deciding where, when, and by whom copies of the data store are to be placed. a. true b. false