Calibraint PHP Developer Interview Questions and Answers

Three coding questions related to arrays, strings, and mathematics.

Q1. What is the difference between a database and a data structure?
Ans. 
A database is a collection of data organized in a structured way, while a data structure is a way to store and organize data within a program or system.
• Database is a collection of related data stored in a structured format, like tables in SQL.

• Data structure is a way to organize and store data within a program, like arrays or linked lists.

• Databases are used to store and retrieve data efficiently, while data structures h...read more
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Q2. React vs Angular
Ans. 
React is a lightweight library for building user interfaces, while Angular is a full-fledged framework with more features and complexity.
• React is more flexible and easier to learn compared to Angular.

• Angular provides more out-of-the-box features like routing, forms, and HTTP client.

• React is component-based, while Angular uses a more opinionated MVC architecture.

• React is maintained by Facebook, while Angular is maintain
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Questions related to relationships.

Data Structures and Algorithms (DSA) related to Java and Bootstrap.

The level of difficulty is based on your knowledge.

We discussed our qualifications.

Aptitude test was quite easy; it had normal intelligence questions as well as some math

The coding test consisted of 2 medium HackerRank questions in any language

Q1. I had a face-to-face virtual interview. The interview round went for 45 minutes. They asked all sort of questions, from JAVA to SQL to basic Python. Also, DSA questions were asked.
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Q2. Difference between Truncate, Delete and Drop
Ans. 
Truncate removes all rows from a table, Delete removes specific rows, and Drop deletes the entire table structure.
• Truncate is a DDL command that removes all rows from a table but keeps the table structure intact.

• Delete is a DML command that removes specific rows based on a condition.

• Drop is a DDL command that deletes the entire table structure along with all its data.

• Truncate is faster than Delete as it does not log in...read more
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Q3. Difference between Sets, Lists, Tuples
Ans. 
Sets, Lists, and Tuples are all data structures in Python with different characteristics and use cases.
• Sets are unordered collections of unique elements. Example: {1, 2, 3}

• Lists are ordered collections of elements that can be modified. Example: [1, 2, 3]

• Tuples are ordered collections of elements that cannot be modified. Example: (1, 2, 3)
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Q1. Round 4 was another face-to-face interview with a senior.
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Array questions - sum the closest two element of array untill its one element

Basic aptitude and reasoning questions. Along with one or two short coding questions

Q1. Questions based on your skills
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Q2. Questions based on your projects.
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Q3. Some general coding and technical questions which will show the skillset of the student
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Q1. General questions like why work here, will you give your best etc
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