_______ is a set of devices through which a user communicates with a system using interactive set of commands.

Related MCQs

• The following namespaces (System.Data.OleDB, System.Data.SqlClient, System.Data.Odbc, System.Data.OracleClient) include classes for different:
• Which of the following statements are correct about the Stack collection? 1. It can be used for evaluation of expressions. 2. All elements in the Stack collection can be accessed using an enumerator. 3. It is used to maintain a FIFO list. 4. All elements stored in a Stack collection must be of similar type. 5. Top-most element of the Stack collection can be accessed using the Peek() method.
• Which of the following statements are correct about the delegate declaration given below? delegate void del(int I); 1. On declaring the delegate a class called del will get created. 2. The signature of del need not be same as the signature of the method that we intend to call using it. 3. The del class will be derived from the MulticastDelegate class. 4. The method that can be called using del should not be a static method. 5. The del class will contain a one-argument constructor and an lnvoke() method.
• Which of the following statements is correct about the C#.NET code snippet given below? class Student s1, s2; // Here 'Student' is a user-defined class. s1 = new Student(); s2 = new Student();
• The theory of _____ implies that user can control the access to a class, method, or variable.
• The ______ are the Graphical User Interface (GUI) components created for web based interactions..
• The controls available in the tool box of the ______ are used to create the user interface of a web based application.
• Which of the following statements are correct about arrays used in C#.NET? 1. Arrays can be rectangular or jagged. 2. Rectangular arrays have similar rows stored in adjacent memory locations. 3. Jagged arrays do not have an access to the methods of System.Array Class. 4. Rectangular arrays do not have an access to the methods of System.Array Class. 5. Jagged arrays have dissimilar rows stored in non-adjacent memory locations.
• Which of the following statements are correct? 1. Instance members of a class can be accessed only through an object of that class. 2. A class can contain only instance data and instance member function. 3. All objects created from a class will occupy equal number of bytes in memory. 4. A class can contain Friend functions. 5. A class is a blueprint or a template according to which objects are created.
• Which of the following is the correct way to access all elements of the Queue collection created using the C#.NET code snippet given below? Queue q = new Queue(); q.Enqueue("Sachin"); q.Enqueue('A'); q.Enqueue(false); q.Enqueue(38); q.Enqueue(5.4);