Barclays interview questions
Online test → Technical·57% entry level
CS fundamentals
Showing 45 of 285 reported in this area
Explain ACID properties in DBMS
Explain different types of SQL joins
Write an SQL query based on a given problem statement
Is Java 100% object-oriented? Justify your answer.
Differentiate between multiple inheritance and multilevel inheritance
What is the Java String Pool?
Why choose MongoDB over MySQL?
Solve a slightly tricky SQL query
Why are strings immutable in Java?
Compare MVC and MVCC architectures.
Solve a medium-difficulty SQL query
Explain the Singleton class pattern.
Explain concurrency concepts in DBMS.
Explain key Java concepts and features
How do you create a responsive website?
What is Third Normal Form (3NF) in DBMS?
Conceptual questions on DBMS fundamentals
Explain any two CPU scheduling algorithms
SQL queries and database-related questions
What are the merits of MongoDB over MySQL?
What is the fragment lifecycle in Android?
Explain Data Warehousing and ETL processes.
Write a SQL query using the GROUP BY clause.
Explain the memory management model of Python
Explain how Spring Framework works internally.
Explain key concepts of the Angular framework.
Differentiate between types of database indexes
Explain DBMS concepts and write 2–3 SQL queries
Explain how a HashMap is implemented internally.
Explain the internal working of HashMap in Java.
What are the necessary conditions for a deadlock?
What is the difference between MongoDB and MySQL?
What are the steps to establish a JDBC connection?
What changes were introduced in HashMap in Java 8?
How do you create your own Singleton class in Java?
How is a foreign key different from denormalization?
Discuss the physical components of an Oracle Database
What is threading and what is multithreading in Java?
Discuss various data structures and their applications
Compare ArrayList vs LinkedList and HashSet vs TreeSet.
Explain the differences between SQL and NoSQL databases
What is JIT (Just-In-Time compiler) and why is it used?
Explain different types of SQL JOINs and their use cases
Explain the importance of disaster recovery in databases
What is synchronization in Java and why is it important?
DSA
Showing 3 of 86 reported in this area
Largest Number Of Vaccines
Cardinality and Arrays for Sets using Dynamic Programming
Sort a 2D matrix.
Behavioural
Showing 3 of 58 reported in this area
Explain Barclays values (RISES)
asked 2×Practice this →
How do you plan and approach a project from start to finish?
How do you handle conflicts within a team? Explain with scenarios
Aptitude
Showing 3 of 14 reported in this area
Form mathematical equations from given word statements.
Identify similar images from a given set based on visual patterns.
Solve logical deduction problems based on given conditions and statements.
Puzzles
Showing 3 of 4 reported in this area
Find the fastest 3 horses out of 25 using minimum number of races.
Solve the puzzle of mislabeled jars containing different items.
Puzzle question (logical reasoning)
asked oncePractice this →
System design
3 questions reported in this area
Write an API using Node.js
How would you scale an e-commerce website for a large number of users?
How would you manage and process large volumes of data in a production system?
Showing 60 of 317 questions. Ranked by how often the same question came back across reports.
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What questions does Barclays ask?
Candidate interview reports most often cover CS fundamentals (63%) and DSA (19%).
How many rounds does Barclays interview have?
Candidate interview reports show an average of 2.4 rounds per experience, with a typical sequence of Online test → Technical. Individual interview paths can vary.
Is the Barclays interview hard?
Among questions with a reported difficulty, the mix is easy 54%, medium 43%, hard 2%.