Select the proper object type. __________ file( "file.dat", ios::in | ios::out );
a. iostream
b. fstream
c. ofstream
d. ifstream
b. fstream
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Answer the following statements true (T) or false (F)
1.If an application needs to store only a small amount of data, sequential and binary files are efficient and easy to use. 2. When developing applications that work with an intensive amount of data, most developers prefer to use a database management system. 3. Rather than retrieving or manipulating the data directly, applications send instructions to the DBMS, and the DBMS carries out those instructions and sends the results back to the application. 4. The application handles the mechanical details reading of, writing of, and searching for data in a database.
switch is an example of a
A. pre processor directive B. comment C. keyword D. statement
The signature option with an e-mail may include all of the following EXCEPT ________
A) name, address, and phone number B) your account name and password C) a quotation D) personal e-mail address
IPv4 networks rely on ____, which is inefficient because many hosts unnecessarily see and partially process traffic not ultimately destined for them.
A. multicasting B. anycasting C. unicasting D. broadcasting