Railway Science (Computer – Database)

Total Questions: 6

1. A set of contiguous data of similar data type is called [RRB NTPC CBT - I (10/01/2021) Morning]

Correct Answer: (b) Array
Solution:

An array is a data structure, which can store a fixed-size collection of elements of the same data type. For example, an int array holds the elements of int types while a float array holds the elements of float types.

2. A collection of interrelated files and a set of programs that allow users to access and modify these files is known as. [RRB NTPC CBT - I (13/01/2021) Morning]

Correct Answer: (b) Database management systems
Solution:

In 1960, Charles W. Bachman designed the Integrated Database System, the “first” DBMS. Example of DBMS Software :- MySQL, Microsoft SQL Server, Oracle Database.

3. The___is a simple query language used for accessing, handling and managing data in a relational database. [RRB NTPC CBT - I (13/01/2021) Morning]

Correct Answer: (c) SQL
Solution:

Data manipulation language (DML) is a computer programming language used for adding, deleting, and modifying data in a database. ISO (International Organization for Standardization) Data Definition Language (DDL) - It is a standard for commands that define the different structures in a database.

4. What is the full form of ODBC in terms of computing? [RRB NTPC CBT - I (07/03/2021) Evening]

Correct Answer: (d) Open database connectivity
Solution:

Open Database Connectivity (ODBC) is an open standard application programming interface (API) that allows application programmers to access any database.

5. Data processing doesn’t involve: [RRB NTPC CBT - I (09/03/2021) Morning]

Correct Answer: (d) Database installation
Solution:

Data processing means conversion of raw data into machine readable form through the CPU. Data manipulation refers to the process of adjusting data to make it organized and easier to read. Computation is any type of calculation or use of computing technology in information processing.

6. Which among the following is NOT database software in computers ? [RRB NTPC CBT - I (08/04/2021) Morning]

Correct Answer: (d) MS Word
Solution:

Some examples of popular database software or DBMSs include MySQL, Microsoft Access, Microsoft SQL Server, FileMaker Pro, Oracle Database, and dBASE. Microsoft Word is a widely used commercial word processor designed by Microsoft.