Which of the following is a software component that can be integrated into Web pages and applications, within a computer or among computers in a network, to reuse the functionality?

Question

Options

• ATimer component
• BComboBox
• CActiveX
• DCombo

• A
  14% (8)
• B
  4% (2)
• C
  74% (42)
• D
  9% (5)

Explanation

ActiveX controls are software components that can be integrated into Web pages and applications, within a computer or among computers in a network, to reuse the functionality. Reusability of controls reduces development time of applications and improves program interfaces. They enhance the Web pages with formatting features and animation. ActiveX controls can be used in applications written in different programming languages that recognize Microsoft's Component Object Model (COM). These controls always run in a container. ActiveX controls simplify and automate the authoring tasks, display data, and add functionality to Web pages. Answer option B is incorrect. The ComboBox component is a standard HTML drop-down, scrollable list. It is a combination of three components: a Button component, a TextInput component, and a List component. A combo box allows a user to select only one option from the drop-down list. A combo box can be static or editable. An editable combo box includes an input text field at the top of the list. This field allows a user to enter text directly. Answer option A is incorrect. The Timer component is designed for a Windows Forms environment. It raises an event at regular intervals. The Interval property of the component defines the length of the intervals. The Start and Stop methods of the component are used to turn on and off, respectively. The component is reset when the timer is switched off and there is no such option to pause the timer. Answer option D is incorrect. There is no such component as Combo.

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