On Facebook, marketing tools with which companies can share information, promote products, and offer specials deals or coupons to customers are known as ____________________.

Which of the following statements is false?

a. Passing an object by value is good from a security standpoint because the called function has no access to the original object in the caller. b. Pass-by-reference can degrade performance when making a copy of a large object. c. An object can be passed by reference by passing either a pointer or a reference to the object. d. When an object is returned by value, a copy constructor copies the original object’s values into the new object.

_____ exchanges are run by a group of traditionally competing companies with common procurement needs.

Fill in the blank(s) with the appropriate word(s).