12th Class Computer Science Chapter 7 Short Questions with Answers Online Preparation

Question # 1

Ans 1: In columnar form single record is displayed at one time with labels and form field listed side by side in columns.In a columnar form each field appears in a separate line with a label to its left ; only one record is shown on each screen,

Question # 2

Ans 1: Combo box:We can select any one option from list.We can add information at runtime.We have only drop down facility.
Ans 2: List Box:We can select multiple option from list.We can not add information at runtime.We have both drop up and drop down facility.

Question # 3

Ans 1: A switchboard is a form that allow you to navigate around your access database . The switchboard is made of buttons to open forms, reports, queries, etc

Question # 4

Ans 1: Radio Button : Option buttons are called radio buttons. Theses are user interface controls typically used to provide quick, intuitive way to select from two or more mutually exclusive data values.
Example: If a column (field) has two potential values, say "yes" and "No" ,or "On" and "off", the option button makes it easy for the user to select one or the other. Option buttons are collected in a "Group" such that selecting one button automatically de-selects the other button (or other buttons) in the same group.

Question # 5

Ans 1: Unlike importing, liking objects from another database will create a link to an object in another database while not copying the table to the current database. Create a link by following these steps:
1) Open the destination database.
2) Select File| Get External | Link Table....From the Menu Bar
3) Choose the Database that the table is located in and click the Link button.

Question # 6

Question # 7

Ans 1: A subfrom is a form that is placed in parent form called the main form.Sub forms are particularly useful to display data forms tables and quries that have one to many relationship.A sub form combination is sometime refferred to as a hierarchical form a master form or a parent/child form.

Question # 8

Ans 1: A list box is a control that provide a means of displaying a list of items(text,numbers,data or whatever) on a access form.Unlike the combo box it lacks the text box at the top in which the user can type.The list remains on a view all the time,giving the List box the appearance of a scrolling text box.

Question # 9

Ans 1: In Microsoft Access a combo box is an object or control that you place an form.It display a list of value that a user can quickly select from.The value displayed within a combo box can be populated by a table/query,value list,or field list.Here is a list of topics that explains how to use combo box in Access.

Question # 10

Ans 1: Access form creates the user interface to your table.Although you can use Datasheet to perform many of the same functions as forms ,Forms are used as an alternative way to enter data into database table,It provides a different way of viewing table data.