Section-1 1) Hardware includes electronic components used to input, process, out

Question

Section-1 1) Hardware includes electronic components used to input, process, output, and store data. Answer: T F 2) A megabyte, or MB, is 1,024 bytes. Answer: TIF 3) Native applications are programs that are written to use a particular operating system. Answer: TIF 4) Mobile systems offer the potential of just-in-time data, which is data delivered to the user at the precise time it is needed. Answer: TIF 5) The term open source means that the source code of the program is not available to the public Answer: TIF 6) A BYOD (bring your own device) policy is a statement concerning employees' permissions and responsibilities when they use their own device for organizational business. Answer: TIF 7) Android is used as a non-mobile operating system. Answer: T F 8) The purpose of a database is to keep track of one theme (one set of items). 9) A key is a column or group of columns that identifies a unique row in a table. 10) Attributes are used to describe characteristics of entities. 11) Special data that describes the structure of a database is called metadata. 12) SQL is an international standard language for processing a database. 13) Data entry forms are used to read, insert, modify, and delete data. 14) In order to find the data one is looking for in a DBMS, one has to type in the keyword into a 15) Application programs process logic that is specific to a given business need. 16) Some type of locking must be used to coordinate the activities of users who know nothing Answer: TIF Answer: TIF Answer: TIF Answer: TIF Answer: T /F Answer: T/F Answer: T F Answer: TF about one another in order to prevent the lost-update problem. Answer: T F

Explanation / Answer

1. True
Explanation: Hardware includes electronic components used to input (keyboard), process (CPU), output (monitor, printer) and store data (Magnetic Disk, Hard disk).
2. False
Explanation: 1024 bytes = 1 Kilobyte (KB) and 1024 KB = 1 Megabyte (MB)
3. True
Explanation: Native application program are native to a system basically operating system. Eg. In MS Window Native APIs are specifice to Windows OS.
4. True
Explanation: Mobile systems offers just-in-time data to fulfill the requirement of data when needed.
5. True:
Explanation: Open source are computer softwares with its source code available to the public. Eg. Linux is open source.
6. True
Explanation: BYOD is a policy of allowing employees to bring personally owned devices at work places.
7. False:
Explanation: Android is a mobile operating system used basically for phones, tablets, smartwatches or other mobile devices.
8. False
Explanation: The main purpose of database is to keep track of different sets of data.
9. True
Explanation: Keys are used to establish relation between the tables. They ensure that each record in a relation is identified by a combination of one or more columns.
10. True
Explanation: Attributes in a database are used to describe the characteristic of entity. Eg. Entity 'Person' have many attributes like 'SSN', 'Name', 'Age' etc.
11. True
Explanation: Metadata means 'data about data'. Metadata is a set of data that provides information about other data. Eg. A word document metadata contains information about size of the document, author, creation date etc.
12. True
Explanation: According to ANSI (international standard), SQL is the standard language for processing Relational Database Management System.
13. True
Explanation: Data entry forms are designed to read, insert, modify and delete data.
14. False
Explanation: In order to find the data in a DBMS one is supposed to write a query specific to DBMS.
15. True
Explanation: Application programs are made for a specific business or user requirement. Eg. MS Word, MS paint are application program.
16. True
Explanation: Locks are used to synchronize access by multiple users in order to prevent loss of data.

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