In Infosys' API rate limiting strategy, what does the Token Bucket algorithm control?
Answer: B
The Token Bucket algorithm is used to control the rate at which API requests are allowed, preventing abuse and ensuring fair resource utilization.
Q.82Medium
Which of the following best describes the Infosys' commitment to 'Digital-First' customer experience in 2024-25?
Answer: B
Infosys' Digital-First approach prioritizes digital channels and experiences while still maintaining traditional support options for customer choice and accessibility.
Q.83Hard
In a distributed system at Infosys, what is the primary challenge that CAP theorem addresses?
Answer: B
CAP theorem states that distributed systems can guarantee only two out of three properties: Consistency, Availability, and Partition Tolerance.
Q.84Easy
What is Infosys' primary focus area in its 2024-25 AI and ML initiatives?
Answer: B
Infosys focuses on augmenting human potential with AI, creating human-AI collaboration models rather than replacement strategies.
Q.85Medium
In Infosys' cybersecurity protocols, which encryption standard is mandated for data at rest?
Answer: B
AES-256 is the industry-standard encryption for data at rest, providing 256-bit key strength and is mandated in Infosys' security policies.
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Q.86Medium
What does OWASP Top 10, which Infosys developers must follow, primarily address?
Answer: B
OWASP Top 10 lists the most critical web application security vulnerabilities that developers must understand and mitigate.
Q.87Easy
In Infosys' Agile methodology, what is a Sprint typically limited to in terms of duration?
Answer: B
In Scrum-based Agile methodology used by Infosys, a Sprint typically lasts 2-4 weeks, allowing for regular feedback and iterations.
Q.88Medium
Which HTTP status code should a REST API return when a resource is successfully created?
Answer: B
HTTP status code 201 Created is the correct response when a new resource is successfully created via POST request, typically including the resource location in the response header.
Q.89Easy
In Infosys' commitment to sustainability 2024-25, what is the target for renewable energy adoption?
Answer: C
Infosys has committed to achieving 75% renewable energy consumption by 2025 as part of its sustainability and ESG initiatives.
Q.90Easy
What is the time complexity of the binary search algorithm when searching in a sorted array of n elements?
Answer: C
Binary search has O(log n) time complexity as it divides the search space in half with each iteration, making it highly efficient for sorted data.
Q.91Hard
In a HashMap implementation used at Infosys, what happens when the load factor exceeds the threshold?
Answer: B
When the load factor (ratio of entries to capacity) exceeds the threshold, the HashMap is rehashed with approximately double the capacity to maintain performance.
Q.92Medium
In Infosys' microservices architecture, which design pattern is used to manage distributed transactions across multiple services?
Answer: A
The Saga pattern is used in microservices to manage distributed transactions by breaking them into local transactions coordinated through event-driven communication.
Q.93Easy
What is the primary purpose of Docker containerization technology used by Infosys developers?
Answer: B
Docker containerization ensures that applications run consistently across different environments by packaging the application with all its dependencies.
Q.94Medium
An Infosys developer needs to optimize a SQL query that joins 4 tables. The query currently takes 8 seconds to execute. Which indexing strategy would be most effective?
Answer: B
Composite indexes on join columns and WHERE clause conditions significantly improve query performance by reducing the number of rows scanned.
Q.95Easy
In Infosys' cloud infrastructure, what does the term 'elasticity' refer to?
Answer: B
Elasticity in cloud computing refers to the automatic scaling of resources to meet changing demand, ensuring optimal resource utilization and cost efficiency.
Q.96Hard
An Infosys project uses Apache Kafka for real-time data streaming. If a consumer group has 5 consumers and the topic has 8 partitions, how many consumers will remain idle?
Answer: A
In Kafka, the maximum number of active consumers in a group equals the number of partitions. With 8 partitions and 5 consumers, only 3 will remain idle.
Q.97Medium
Which of the following represents the correct order of REST API maturity levels according to Richardson Maturity Model used at Infosys?
Answer: A
The Richardson Maturity Model progresses from the Swamp (0), to Resources (1), HTTP Verbs (2), and finally Hypermedia (3) as the highest level of REST maturity.
Q.98Easy
In Infosys' DevOps pipeline, which tool is primarily used for continuous integration and continuous deployment (CI/CD)?
Answer: A
Jenkins is the leading open-source automation server widely used by Infosys for implementing CI/CD pipelines to automate testing and deployment processes.
Q.99Medium
An Infosys data engineer needs to process 10 TB of unstructured data. Which Apache tool would be most suitable for batch processing?
Answer: A
Apache Spark is superior for large-scale batch processing due to its in-memory computing capabilities, providing faster execution than MapReduce for processing large datasets.
Q.100Hard
In thread-safe programming at Infosys, which Java construct provides the most granular level of locking?
Answer: C
ReentrantReadWriteLock provides separate read and write locks, allowing multiple readers but only one writer, offering finer-grained control than basic synchronized constructs.
