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Placement Papers
Infosys Questions

TCS, Infosys, Wipro, Cognizant actual papers

52 Q 10 Topics Take Mock Test
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Topics in Placement Papers
Q.11 Medium Infosys Questions
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.

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Q.12 Medium Infosys Questions
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.

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Q.13 Medium Infosys Questions
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.

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Q.14 Medium Infosys Questions
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.

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Q.15 Medium Infosys Questions
What is the average-case time complexity of quicksort algorithm?
A O(n log n)
B O(n²)
C O(n)
D O(log n)
Correct Answer:  A. O(n log n)
EXPLANATION

Quicksort has average-case time complexity O(n log n) with good pivot selection, making it efficient for most practical scenarios.

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Q.16 Medium Infosys Questions
In REST API design followed by Infosys developers, what does the HTTP status code 429 indicate?
A Bad Request
B Unauthorized
C Too Many Requests
D Internal Server Error
Correct Answer:  C. Too Many Requests
EXPLANATION

HTTP 429 indicates rate limiting - the user has sent too many requests in a given time period.

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Q.17 Medium Infosys Questions
What is Infosys' ESG (Environmental, Social, Governance) commitment target by 2030?
A Carbon neutral operations
B 50% workforce diversity
C Net-zero carbon emissions
D Complete paperless operations
Correct Answer:  C. Net-zero carbon emissions
EXPLANATION

Infosys has committed to achieving net-zero carbon emissions by 2030 as part of its sustainability and ESG initiatives.

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Q.18 Medium Infosys Questions
A sorting algorithm with space complexity O(1) is known as:
A In-place sorting
B Unstable sorting
C External sorting
D Hybrid sorting
Correct Answer:  A. In-place sorting
EXPLANATION

In-place sorting algorithms use constant extra space O(1), modifying the input array directly (e.g., quicksort, heapsort).

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Q.19 Medium Infosys Questions
Infosys collaborates with which major cloud provider for hybrid cloud solutions?
A Only AWS
B AWS, Azure, and Google Cloud
C Only on-premise solutions
D No cloud partnerships
Correct Answer:  B. AWS, Azure, and Google Cloud
EXPLANATION

Infosys works with multiple cloud providers including AWS, Microsoft Azure, and Google Cloud for comprehensive hybrid cloud services.

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Q.20 Medium Infosys Questions
In distributed systems at Infosys, what does CAP theorem stand for?
A Capacity, Availability, Performance
B Consistency, Availability, Partition tolerance
C Cache, Access, Protocol
D Centralization, Asynch, Priority
Correct Answer:  B. Consistency, Availability, Partition tolerance
EXPLANATION

CAP theorem states that distributed systems can guarantee at most two of three properties: Consistency, Availability, and Partition tolerance.

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