Attock Refinery Interview Questions and Answers

Java programs for manipulating lists and strings.

• Use ArrayList class for lists and String class for strings.

• To add elements to a list: list.add(element);

• To access elements in a list: list.get(index);

• To concatenate strings: string1 + string2;

• To find the length of a string: string.length();

Sharding in MongoDB involves partitioning data across multiple servers to improve scalability and performance.

• Sharding is achieved by dividing data into chunks based on a shard key

• Each shard contains a subset of the data, distributed across multiple servers

• MongoDB's sharding architecture includes config servers, query routers, and shard servers

• Sharding can be implemented at the collection level in MongoDB

I am passionate about software development and believe in the company's mission and values.

• I admire the company's innovative projects and technologies.

• I resonate with the company's culture of collaboration and continuous learning.

• I am excited about the opportunity to work with a talented team of developers.

• I believe my skills and experience align well with the company's needs.