10+ Interview Questions and Answers

Identified and corrected revenue reporting error by reconciling data sources and adjusting calculations.

• Discovered discrepancy between sales records and financial reports

• Investigated root cause of error by comparing data from different sources

• Implemented adjustments to revenue calculations to rectify the error

• Ensured accurate reporting moving forward by enhancing reconciliation processes

Ensuring accuracy and compliance in revenue recognition through thorough documentation, regular audits, and staying up-to-date with accounting standards.

• Maintaining detailed records of revenue transactions

• Performing regular audits to verify accuracy of revenue recognition

• Staying informed about changes in accounting standards and regulations

• Collaborating with cross-functional teams to ensure consistency in revenue recognition practices

SHA is a cryptographic hash function used for data integrity and security.

• SHA stands for Secure Hash Algorithm

• It generates a fixed-length hash value from input data

• Used for data integrity, digital signatures, and password storage

• Examples include SHA-1, SHA-256, SHA-512

Payment methods and per transaction cost for income processing.

• Payment methods include credit/debit cards, bank transfers, and digital wallets.

• Per transaction cost varies depending on the payment method and the service provider.

• For example, credit card transactions may have a higher cost compared to bank transfers.

• It is important to consider the cost and convenience of each payment method when choosing a service provider.

TCP for reliable data transfer, UDP for low latency and loss tolerance

• TCP is used when reliable data transfer is required, such as in file transfers or email communication

• UDP is used when low latency and loss tolerance are more important than reliability, such as in online gaming or video streaming

• TCP is connection-oriented while UDP is connectionless

• TCP provides flow control and congestion control while UDP does not

• TCP is slower than UDP due to the overhead of establishing a...read more

ASC 606 is a revenue recognition standard that outlines principles for recognizing revenue from contracts with customers.

• ASC 606 stands for Accounting Standards Codification 606

• Steps to recognize revenue under ASC 606 include identifying the contract, identifying performance obligations, determining the transaction price, allocating the transaction price to the performance obligations, and recognizing revenue when each performance obligation is satisfied

• Advantages of ASC 606 ...read more

HAProxy is a free, open-source load balancer and proxy server software.

• HAProxy stands for High Availability Proxy.

• It is used to distribute traffic across multiple servers to ensure high availability and scalability.

• It supports TCP and HTTP-based applications.

• It can perform SSL/TLS termination, content switching, and request routing.

• It is highly configurable and can be used in various deployment scenarios.

• Examples of companies using HAProxy include Airbnb, GitHub, and Reddit.

I handle pressure by prioritizing tasks, taking breaks, and seeking support when needed.

• I prioritize tasks based on urgency and importance

• I take short breaks to clear my mind and recharge

• I seek support from colleagues or supervisors when necessary

• I maintain a positive attitude and focus on solutions rather than problems

Design a scalable and reliable messaging service component

• Use a distributed system architecture to handle high volume of messages

• Implement message queues for asynchronous communication

• Ensure message delivery with retries and acknowledgements

• Support message encryption for security

• Include monitoring and logging for performance tracking

REST API is a web-based API that uses HTTP requests to access and manipulate data.

• REST stands for Representational State Transfer

• It is an architectural style for building web services

• It uses HTTP methods like GET, POST, PUT, DELETE to perform operations on resources

• Responses are usually in JSON or XML format

• Examples include Twitter API, Facebook API, and Google Maps API

Lease accounting refers to the accounting treatment of lease agreements, where the lessee records the leased asset as an asset and the lease payments as liabilities.

• Lease accounting involves classifying leases as either operating leases or finance leases.

• For operating leases, lease payments are expensed over the lease term, while for finance leases, the leased asset is capitalized on the balance sheet.

• Under the new lease accounting standard, ASC 842, lessees are required to r...read more

SSL handshake and IPsec negotiation are both security protocols used to establish secure communication channels.

• SSL handshake is used to establish secure communication between a client and a server over the internet.

• IPsec negotiation is used to establish secure communication between two network devices.

• SSL handshake uses a combination of public and private keys to encrypt and decrypt data.

• IPsec negotiation uses a combination of authentication and encryption protocols to secur...read more

Object-oriented programming paradigm that focuses on objects and classes for code organization and reusability.

• Encapsulation: bundling data and methods that operate on the data into a single unit (object)

• Inheritance: ability of a class to inherit properties and behavior from another class

• Polymorphism: ability to present the same interface for different data types