is widely used today for protecting data in transit in a variety of applications such as data transfer on the Internet, and on cellular phone networks.

Related MCQs

• If the attribute phone number is included in the relation all the values need not be entered into the phone number column. This type of entry is given as
• Representations such as the in the dept year relation, with one column for each value of an attribute, are called                they are widely used in spreadsheets and reports and in data analysis tools.
• Representations such as the in the dept year relation, with one column for each value of an attribute, are called _______ they are widely used in spreadsheets and reports and in data analysis tools.
• Suppose the user finds the usage of room number and phone number in a relational schema there is confusion.This is reduced by
• Let us consider phone_number ,which can take single or several values . Treating phone_numberas an                    permits instructors to have several phone numbers (including zero) associated with them.
• Let us consider phone_number ,which can take single or several values . Treating phone_numberasan _________ permits instructors to have several phone numbers (including zero) associated with them.
•                        is popular for applications such as storage of log files in a database system since it offers the best write performance.
• Which algebra is widely used in DBMS?
• The                            system is widely used for mapping from Java objects to relations.
• A single                              further allows the user to be authenticated once, and multiple applications can then verify the user’s identity through an authentication service without requiring reauthentication.