Barclays Consultant Interview Questions and Answers

Q1. Why you want doing job in banking sector?
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Q1. Why you leave the job in previous company?
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Phycometric test in round 1

Q1. Till date working and experience
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Q1. Technical questions about technology organization using.
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Q1. About the salary and documents
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Q1. CompletableFuture VS Future
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CompletableFuture is an enhanced version of Future in Java that provides more flexibility and functionality.
• CompletableFuture is part of the Java 8 concurrency framework.

• It allows chaining of multiple asynchronous operations.

• CompletableFuture can be explicitly completed or cancelled.

• It supports callbacks and combinators for handling completion.

• Future is a basic interface for representing the result of an asynchronous c...read more
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Q2. ConcurrentHashmap
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Q3. Composition Vs inheritance
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Composition is a design principle where objects are composed of other objects, while inheritance is a mechanism where objects inherit properties and behaviors from a parent object.
• Composition promotes code reusability and flexibility by allowing objects to be composed of other objects.

• Inheritance allows objects to inherit properties and behaviors from a parent object, promoting code reuse.

• Composition is more flexible t...read more
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Q4. Spring boot, microservices, Design patterns
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Q1. Parallel Calls in java
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Parallel calls in Java allow multiple tasks to be executed simultaneously, improving performance.
• Parallel calls can be achieved using threads or the Executor framework.

• Threads allow concurrent execution of tasks, but require manual management of synchronization and resource sharing.

• The Executor framework provides higher-level abstractions for managing parallel tasks, such as thread pools and task scheduling.

• Example: us...read more
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Q2. Lock Vs Sync Block
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Lock and Sync Block are mechanisms used for thread synchronization in multi-threaded programming.
• Lock is a low-level synchronization mechanism that provides exclusive access to a shared resource.

• Sync Block is a higher-level synchronization mechanism that allows multiple threads to access a shared resource concurrently.

• Lock is more flexible and can be used in various scenarios, but it requires explicit acquisition and r...read more
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Q3. Hsshmap internal working , Checked Exception
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Q1. Mental trauma and frustrated scenarios Even after solving 3 Link list coding problem and 20+ technical questions, and then following up about 20 times, and even after calls and emails, there has been no...read more
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Q2. Even after solving 3 coding problem and 20+ technical questions, and then following up about 20 times, and even after calls and emails, there has been no response. Would it be appropriate for me to post ...read more
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Q1. Kafka, webflux, Java multithreading
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Q1. Studies background
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Q2. Prehoius job experiance
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Q1. Compatiblity with work
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I prioritize work compatibility by aligning my skills and values with the organization's goals.
• I ensure my work style and communication methods align with the team's dynamics.

• I adapt to the company's culture and values to enhance collaboration and productivity.

• I seek feedback and make adjustments to improve my performance and fit within the organization.

• I prioritize work-life balance to maintain productivity and well-b...read more
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Q2. Perfect in skills
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Q1. Full day working flexiblity
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Q2. Distance from home
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The distance from home is a key factor to consider when evaluating a job opportunity.
• Consider the commute time and transportation options available

• Think about the impact on work-life balance and personal well-being

• Evaluate the potential cost of commuting and the convenience of the location
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