Question 116
[Q.16] In computer number system, ASCII (American Standard Code for Information Interchange) code supports ______ combinations.
Detailed Solution
The question's intended answer is 2⁷ or 2⁸.
[Q.16] In computer number system, ASCII (American Standard Code for Information Interchange) code supports ______ combinations.
The question's intended answer is 2⁷ or 2⁸.
[Q.17] In Relational Database Management System, which key is an attribute of a table that matches the primary key of another table but does not have unique value?
A foreign key references a primary key in another table and may contain duplicate values.
[Q.18] In a computer system, a domain is a collection of ______, each of which is an ordered pair <object-name, right-set>.
A protection domain is a collection of access rights.
[Q.19] In database management system, which of the following key is underlined in the Entity Relationship diagram?
The primary key attribute is conventionally underlined in an ER diagram.
[Q.20] What is the storage capacity of optical disks?
Storage capacity is calculated as the number of sectors multiplied by bytes per sector.