Beinex Interview Questions and Answers

Answering questions related to SQL concepts and syntax.

• Projects in SQL refer to selecting specific columns from a table.

• View in SQL is a virtual table created by a query.

• Union combines the results of two or more SELECT statements, while Union All includes duplicates.

• Referential integrity is maintained through foreign key constraints.

• Types of triggers in SQL include DML triggers and DDL triggers.

• Where clause is used to filter rows based on a specified condition, while Having c...read more

Transformer is a deep learning model that uses self-attention mechanism. Multi Head Attention is a variant of attention mechanism. Positional Encoding is used to inject information about the position of tokens in the sequence.

• Transformer is a deep learning model introduced in the paper 'Attention is All You Need' by Vaswani et al.

• Multi Head Attention allows the model to focus on different parts of the input sequence simultaneously.

• Positional Encoding is added to the input emb...read more

RAG stands for Retrieve, Aggregate, and Group. Data can be retrieved from Vector DB using SQL queries.

• RAG is a process used to retrieve, aggregate, and group data from a database.

• SQL queries are commonly used to retrieve data from Vector DB.

• Example: SELECT * FROM table_name WHERE condition;

HTTP is a protocol used for transferring data over the internet, while cloud refers to the delivery of computing services over the internet.

• HTTP stands for Hypertext Transfer Protocol and is used for transmitting data on the web

• Cloud computing refers to the delivery of computing services like storage, databases, networking, software, and more over the internet

• Examples of cloud services include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform

Port numbers are communication endpoints in a network, allowing multiple applications to use the same network connection.

• Port numbers range from 0 to 65535

• Well-known ports (0-1023) are reserved for specific services (e.g. HTTP uses port 80)

• Registered ports (1024-49151) are assigned by IANA for specific purposes

• Dynamic or private ports (49152-65535) are used for temporary connections

The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.

• The OSI model stands for Open Systems Interconnection model.

• It helps in understanding how different networking protocols work together.

• The seven layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer has specific functions and communicates with the adjacent layers.

• For example, HTTP operates at the ...read more