Chegg Interview Questions and Answers

Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.

• Normalization involves breaking down a database into smaller, more manageable tables and defining relationships between them.

• There are different normal forms such as 1NF, 2NF, 3NF, BCNF, and 4NF, each with specific rules to ensure data integrity.

• Normalization helps in reducing data redundancy, improving da...read more

Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.

• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example of compile-time polymorphism: function overloading in Java.

• Example of runtime polymorphism: metho...read more

Cells are the basic structural and functional units of all living organisms.

• Cells are the building blocks of life

• There are two main types of cells: prokaryotic and eukaryotic

• Prokaryotic cells, like bacteria, lack a nucleus and other membrane-bound organelles

• Eukaryotic cells, found in plants, animals, fungi, and protists, have a nucleus and membrane-bound organelles

Life science is the study of living organisms and their interactions with each other and their environment.

• Life science includes fields such as biology, ecology, genetics, and physiology.

• It explores the structure, function, growth, origin, evolution, and distribution of living organisms.

• Examples of life science research include studying the impact of climate change on ecosystems, genetic engineering in agriculture...read more

AI implementation in the industry has revolutionized processes and improved efficiency.

• AI has automated repetitive tasks, saving time and resources.

• AI has improved decision-making by analyzing large amounts of data.

• AI has enhanced customer experiences through personalized recommendations.

• AI has increased productivity and accuracy in manufacturing and logistics.

• AI has enabled predictive maintenance, reducing downti...read more

The mean value of the series 2, 3, 4 is 3.

• To find the mean value of a series, add up all the numbers and divide by the total count.

• In this case, (2 + 3 + 4) / 3 = 3.

SF6 is used in electrical industries for insulation and arc quenching purposes.

• SF6 is commonly used as an insulating gas in high-voltage electrical equipment such as circuit breakers, switchgear, and transformers.

• It is also used as a dielectric medium in gas-insulated substations (GIS) and gas-insulated lines (GIL).

• SF6 is highly effective in extinguishing electrical arcs and preventing electrical breakdowns.

• Its ex...read more