IT &computer MCQ section 2 MCQ Questions & Answers Detailed Explanation

Answer: (a)

A general-purpose database management system (DBMS) is a software system designed to allow the definition, creation, querying, update, and administration of databases.

Well-known DBMSs include MySQL, Microsoft SQL Server, Oracle, SAP, etc. PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation’s procedural language extension for SQL and the Oracle relational database.

Answer: (b)

The weighted codes are those that obey the position weighting principle, which states that the position of each number represents a specific weight. In weighted codes, each digit is assigned a specific weight according to its position.

Non-weighted or un-weighted codes are those codes in which the digit value does not depend upon their position i.e., each digit position within the number is not assigned a fixed value.

Examples of non-weighted codes are: Un-weighted BCD code, Excess-3 code and grey code.

Answer: (b)

An electric organizer is a small calculator-sized computer, often with an in-built diary application but few other functions such as an address book and calendar. It normally has a small alphanumeric keypad and an LCD screen of one, two or three lines.

Answer: (a)

In C language, the formatting character should be preceded by the symbol %.

Answer: (a)

The number of bits that a computer can process at a time in parallel is called its word length.

The commonly used word lengths are: 8, 16, 32 or 64 bits. It is a measure of the computer power of a computer.

For example, when we talk of a 32-bit computer, it means that its word length is 32 bits.