SIPCHEM Interview Questions and Answers

Practices for designing a good database include normalization, indexing, proper data types, relationships, and performance optimization.

• Normalize data to reduce redundancy and improve data integrity

• Use indexing to speed up data retrieval

• Choose appropriate data types to optimize storage and querying

• Establish relationships between tables for data consistency

• Optimize database performance through query optimization and proper indexing

Containers can communicate with each other through networking, shared volumes, and environment variables.

• Containers can communicate over a network using IP addresses or hostnames.

• Containers can share data through shared volumes mounted to the same directory.

• Containers can pass information through environment variables set during container creation.

• Tools like Docker Compose can simplify networking and communication between containers.

setTimeout executes a function once after a specified delay, while setInterval executes a function repeatedly at specified intervals.

• setTimeout executes a function once after a specified delay, while setInterval executes a function repeatedly at specified intervals.

• setTimeout example: setTimeout(function(){ console.log('Hello'); }, 2000); // prints 'Hello' after 2 seconds

• setInterval example: setInterval(function(){ console.log('Hi'); }, 1000); // prints 'Hi' every second

Reversing the elements of an array

• Iterate through the array and swap the elements at opposite ends

• Create a new array with the reversed elements

Dockerfile is used to build a Docker image, while Docker Compose is used to define and run multi-container Docker applications.

• Dockerfile is a script that contains instructions to build a Docker image.

• Docker Compose is a YAML file that defines a multi-container Docker application.

• Dockerfile is used to create a single container, while Docker Compose is used to create and manage multiple containers.

• Dockerfile is used to specify the base image, add dependencies, and configure th...read more