Elemica Software Engineer Interview Questions and Answers

SQL is a programming language used to manage and manipulate relational databases.

• SQL stands for Structured Query Language

• It is used to create, modify, and query databases

• Common commands include SELECT, INSERT, UPDATE, and DELETE

• SQL is used in a variety of industries, including finance, healthcare, and e-commerce

DBMS stands for Database Management System. It is a software system that allows users to define, create, maintain and control access to databases.

• DBMS is used to manage large amounts of data efficiently.

• It provides a way to store, retrieve and manipulate data in a structured way.

• Examples of DBMS include MySQL, Oracle, and Microsoft SQL Server.

A bit is the smallest unit of digital information. It can have a value of either 0 or 1.

• A bit is a binary digit, represented as either 0 or 1.

• It is the basic unit of information used in computing and digital communications.

• A group of 8 bits is called a byte.

• The size of a bit is dependent on the architecture of the computer system.

C is a programming language and does not have a fixed number of bits.

• C is a high-level programming language that can be compiled to run on different architectures with varying bit sizes.

• The number of bits in C depends on the hardware architecture it is compiled for.

• For example, C code compiled for a 32-bit architecture will have 32-bit integers, while code compiled for a 64-bit architecture will have 64-bit integers.