Bell A rings every 12 minutes and Bell B rings every 18 minutes. After how many minutes will they ring together again if they ring at the same time now?

The correct answer is B: 36 minutes. They ring together after LCM(12, 18) minutes. 12 = 2² × 3, 18 = 2 × 3². LCM = 2² × 3² = 36 minutes.

Two numbers have HCF of 8 and LCM of 96. If one number is 24, find the other number.

The correct answer is A: 32. Using formula: HCF × LCM = Product of two numbers. 8 × 96 = 24 × x. 768 = 24x. x = 32.

If the price of rice increases by 25%, by what percentage should consumption decrease to keep expenditure constant?

The correct answer is B: 20%. Let original price = 100, consumption = 100. New price = 125. For constant expenditure, consumption = 10000/125 = 80. Decrease = 20%.

A discount series of 20%, 15%, and 10% is equivalent to a single discount of approximately:

The correct answer is A: 38.8%. Equivalent = 100 × (0.8 × 0.85 × 0.9) = 100 × 0.612 = 61.2. Discount = 38.8%

A person borrowed ₹25,000 at 9% p.a. simple interest. If he repaid ₹33,250, in how many years did he repay?

The correct answer is B: 3.5 years. SI = 33250 - 25000 = 8250. Using T = (SI × 100)/(P × R) = (8250 × 100)/(25000 × 9) = 3.67 ≈ 3.5 years

Infosys Interview Questions

Q.71 Easy Infosys

In 2024, which technology certification has Infosys promoted most for its employees?

A COBOL certification

B Cloud certifications (AWS, Azure, GCP)

C Typewriter operation

D Mechanical engineering

Correct Answer: B. Cloud certifications (AWS, Azure, GCP)

Explanation:

Infosys actively promotes cloud provider certifications (AWS Solutions Architect, Azure Administrator, GCP Professional) for workforce upskilling.

Take Test

Q.72 Hard Infosys

In a concurrent system at Infosys, what is a deadlock scenario?

A Process exceeds time limit

B Two or more processes waiting indefinitely for resources held by each other

C System runs out of memory

D Network connection fails

Correct Answer: B. Two or more processes waiting indefinitely for resources held by each other

Explanation:

A deadlock occurs when two or more processes are blocked forever, each holding resources the other needs, causing circular dependency.

Take Test

Q.73 Medium Infosys

What percentage of Infosys' revenue comes from digital and cloud services as of 2024?

A Below 20%

B 30-40%

C Above 50%

D Negligible amount

Correct Answer: C. Above 50%

Explanation:

Digital and cloud services represent over 50% of Infosys' revenue in 2024, reflecting the company's focus on modern technology solutions.

Take Test

Q.74 Easy Infosys

Which of the following is NOT a pillar of Infosys' core values?

A Integrity

B Agility

C Aristocracy

D Client Success

Correct Answer: C. Aristocracy

Explanation:

Infosys' core values are Integrity, Agility, Innovation, and Client Success. Aristocracy is not part of their core value system.

Take Test

Q.75 Medium Infosys

In microservices architecture used by Infosys, what does the Circuit Breaker pattern prevent?

A Memory leaks

B Cascading failures

C SQL injection attacks

D Buffer overflow

Correct Answer: B. Cascading failures

Explanation:

The Circuit Breaker pattern in microservices prevents cascading failures by stopping requests to a failing service and allowing it time to recover.

Take Test

Q.76 Medium Infosys

Which programming paradigm does Infosys predominantly use for cloud-native applications?

A Procedural

B Functional

C Object-Oriented

D Logic Programming

Correct Answer: C. Object-Oriented

Explanation:

Infosys predominantly uses Object-Oriented programming for enterprise applications, though functional programming is increasingly used in cloud-native services.

Take Test

Q.77 Medium Infosys

What is the primary advantage of using containerization (Docker) in Infosys' DevOps pipeline?

A Increases code readability

B Ensures environment consistency across development and production

C Reduces SQL query execution time

D Eliminates the need for version control

Correct Answer: B. Ensures environment consistency across development and production

Explanation:

Docker ensures that applications run consistently across different environments by packaging dependencies, which is crucial for Infosys' global deployment strategies.

Take Test

Q.78 Easy Infosys

In Infosys' 2024-25 digital transformation initiatives, which cloud provider has the largest partnership deal?

A Google Cloud

B Amazon Web Services (AWS)

C Microsoft Azure

D Oracle Cloud

Correct Answer: B. Amazon Web Services (AWS)

Explanation:

AWS is Infosys' largest cloud partnership, with significant investments in AWS-based solutions and certifications for employee development.

Take Test

Q.79 Medium Infosys

Which design pattern is used when Infosys developers need to ensure only one instance of a database connection pool exists?

A Factory Pattern

B Observer Pattern

C Singleton Pattern

D Strategy Pattern

Correct Answer: C. Singleton Pattern

Explanation:

The Singleton Pattern ensures that only one instance of a class (like a database connection pool) is created throughout the application lifecycle.

Take Test

Q.80 Hard Infosys

What is the expected behavior when a thread calls the wait() method in a synchronized block at Infosys coding standards?

A The thread terminates immediately

B The thread releases the lock and enters a waiting state

C The thread continues execution

D The thread creates a new process

Correct Answer: B. The thread releases the lock and enters a waiting state

Explanation:

When wait() is called in a synchronized block, the thread releases the object lock and enters a waiting state until notify() or notifyAll() is called.

Take Test

All Subjects & Topics