C++ Programming and IT Fundamentals

Cryptography is a science of securing information in the network. It converts information into some other format which would not be understood by an unauthorized person.

Switch is also called as fast Bridge. The common forwarding approaches include Cut through, Collision free and Fully buffered.

Bridges are network devices which work on first two layers of OSI model with filtering and forwading capabilities.

In a class C, IP address; the first three bytes represent the network. The first three bits are 1,1 and 0 which mean that there are 2²¹ network possibilities, i.e. 2,097,152. The networks available in class C are networks going from 192.0.0.0 to 223.255.255.0. Therefore, it uses three network IDs to identify the class.

This is the correct answer , the exact possible number of networks in class B is 16384. It is calculated as 2^{14 =} 16384. 14 is a usable network ID bits (16 - 2 = 14).

SOAP is the standard format for requesting Web services.

Net is a framework which is supported only by Windows.

OLTP stands for Online Analytical Processing.

Enterprise resource planning is used to manage internal and external resources.

 It is a Sun Certified Java Certification.

Polymorphism is an important OOP concept. An operation may exhibit different behaviour in different instances.

This header file is required to make use of manipulators like setw() and endl().

Inheritance is the property of C++ that allows the reusing of any class into another class without modifying it.

The assignment operator cannot be overloaded by using friend function because the left-hand argument is responsible for invoking operator function, which is not possible with assignment operator.

The protected data members of a class become private when privately inherited in the derived class to maintain data hiding property of OOP.

A static member function can be called using the class name instead of its objects and it makes the use of static data members only.

Function is a derived data type in C++ which is used to perform some predefined tasks.

Seekg() function allows the movement of get pointer to a specified location in the file.

This mode is used to open a file for reading only. The input pointer is automatically set at the beginning.

This flag is used with setf() function to print '+' before positive numbers.

Netbill Internet commerce system helps in delivering soft goods including information.  

The conditional operator(?:) in C++ cannot be overloaded as it is a ternary operator and requires three arguments to operate.

Constructor is a special kind of member function, whose task is to initialize the object of its class. This is implicitly called when the object of the class is created.

This form of inheritance allows base class to be inherited into intermediate base class which can be further inherited to derived class forming chain of classes.

This stream class inherits all the functions from istream and ostream classes through iostream, allowing both I/O functions.