A(n) ________ program prevents unwanted malicious programs from being installed on your computer

All of the following are true of an ostringstream object except that:

a. It uses a string to store output data. b. A stream insertion operation cannot be used to append additional data to it. c. The string data it stores is dynamically allocated. d. The data it stores can be accessed using the function str

An HTTP ________ is a sequence of transactions between a Web server and a browser.

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