How does a hypervisor allocate hardware?

What should an accumulator variable be set to before it is used to accumulate a total?

A. 1 B. false C. true D. 0

Suppose that we have a relation

Employee2 (SSnum, Name, Salary, Age, Title, Location)

which is partitioned as

Emp21 (SSnum, Name, Salary)
Emp22 (SSnum, Title, Age, Location)

where Emp21 is stored at site B and Emp22 is stored at site C. A query at site A wants the names of all managers in the accounting department whose salary is greater than their age. Design a plan for this query, using the assumptions on page 704 for table and attribute sizes. Assume that the items in the Age column are two bytes long.