Visa
100+ FAPL Interview Questions and Answers
Q101. Do you know telecalling?
Yes, telecalling involves making phone calls to potential clients or customers to promote products or services.
Telecalling involves making outbound calls to potential customers or clients.
The goal of telecalling is to promote products or services, generate leads, or set up appointments.
Telecallers need to have good communication skills, be persuasive, and have a clear understanding of the product or service they are promoting.
Q102. Sorting algorithms in any language
Sorting algorithms are used to arrange elements in a specific order in an array.
Common sorting algorithms include Bubble Sort, Selection Sort, Insertion Sort, Merge Sort, Quick Sort, and Heap Sort.
Each algorithm has its own time complexity and best/worst case scenarios.
For example, Merge Sort has a time complexity of O(n log n) and is efficient for large datasets.
Q103. Articulate Product Strategy for a market migration/mass enablement
Develop a product strategy to enable mass migration in the market.
Conduct market research to identify target segments and their needs
Create a roadmap for product development and deployment
Implement marketing campaigns to educate and attract customers
Provide training and support for users transitioning to the new product
Monitor and analyze feedback to make continuous improvements
Q104. provide an example how you solved a problem
I solved a problem by using machine learning algorithms to predict customer churn for a telecom company.
Identified relevant data sources such as customer demographics, usage patterns, and customer service interactions.
Preprocessed and cleaned the data to handle missing values and outliers.
Built and trained a machine learning model using algorithms like logistic regression and random forest.
Evaluated the model's performance using metrics like accuracy, precision, recall, and F...read more
Q105. Diff b/w Interface and Abstract class
Interface is a blueprint of a class while Abstract class is a partially implemented class.
An interface can only have abstract methods while an abstract class can have both abstract and non-abstract methods.
A class can implement multiple interfaces but can only inherit from one abstract class.
Interfaces are used to achieve multiple inheritance while abstract classes are used to provide a common base for related classes.
Interfaces are used to define contracts while abstract cla...read more
Q106. How to manage third party IT resilience
Q107. what is RDBMD? how can it be rationalize
RDBMD stands for Relational Database Management System. It is a software system used for managing relational databases.
RDBMD is used to store, retrieve, and manage data in a structured format.
It allows users to define, create, and manipulate tables, indexes, and relationships between data.
Examples of RDBMD include MySQL, Oracle Database, and Microsoft SQL Server.
Q108. explain microservices and Kubernetes, low code/ no code
Microservices are a software development technique where applications are composed of small, independent services that communicate over well-defined APIs. Kubernetes is an open-source platform for automating deployment, scaling, and managing containerized applications.
Microservices break down applications into smaller, loosely coupled services that can be developed, deployed, and scaled independently.
Kubernetes is used to automate the deployment, scaling, and management of co...read more
Q109. Describe the VXLAN fabricand understand the under/overlay principles
VXLAN fabric is a virtualized network overlay technology that enables the extension of Layer 2 networks over Layer 3 networks.
VXLAN stands for Virtual Extensible LAN
It uses a 24-bit VNID (VXLAN Network Identifier) to uniquely identify each virtual network
VXLAN encapsulates Layer 2 Ethernet frames within Layer 3 UDP packets for transmission across the network
Underlay network provides the physical connectivity between VXLAN tunnel endpoints (VTEPs)
Overlay network is the logical...read more
Q110. Built a react feature
Built a react feature
Identify the specific feature to be built
Design the component hierarchy and state management
Implement the feature using React components and hooks
Test the feature for functionality and user experience
Refactor and optimize the code for performance
Q111. How would go about managing a program?
I would manage a program by setting clear goals, creating a detailed plan, assigning tasks to team members, monitoring progress, and adjusting as needed.
Set clear goals and objectives for the program
Create a detailed project plan outlining tasks, timelines, and resources
Assign tasks to team members based on their strengths and expertise
Monitor progress regularly and track key performance indicators
Adjust the plan as needed to ensure successful program completion
Q112. How would you review the prepaid account
Review prepaid account by analyzing prepaid expenses and ensuring they are properly recorded and allocated.
Review prepaid expenses to ensure they are accurately recorded in the correct accounting period
Verify that prepaid expenses are properly allocated to the appropriate expense accounts
Check for any prepaid expenses that may need to be adjusted or amortized over time
Ensure that prepaid expenses are not duplicated or recorded in the wrong accounts
Q113. What are the automation have you done
Implemented automation in financial reporting, budgeting, and forecasting processes.
Developed automated financial models to streamline budgeting process
Utilized software tools to automate data collection and analysis for financial reporting
Implemented automated alerts for financial variances and trends
Integrated automation tools to improve accuracy and efficiency in forecasting
Q114. call , bind and apply functions in javascript
call, bind, and apply are methods used to manipulate the context of a function in JavaScript.
call() is used to invoke a function with a specified 'this' value and arguments provided individually.
bind() is used to create a new function with a specified 'this' value and initial arguments.
apply() is used to invoke a function with a specified 'this' value and arguments provided as an array.
Q115. Diff between rdbms dbms
RDBMS is a type of DBMS that stores data in a structured format with relationships between tables.
RDBMS enforces ACID properties for database transactions.
RDBMS uses SQL for querying and managing data.
DBMS is a general term for any system that manages databases, while RDBMS is a specific type.
DBMS may not support relationships between tables like RDBMS does.
Q116. Difference b/w argument and parameter
Argument is the actual value passed to a function, while parameter is a variable used to define a function.
Parameter is a variable in the function declaration, while argument is the actual value passed to the function.
Parameter is used to initialize the function's variables, while argument is used to pass values to the function.
Example: function add(a, b) { return a + b; } add(2, 3); Here, a and b are parameters, while 2 and 3 are arguments.
Q117. Different topology in networking
Different topology refers to the arrangement of nodes in a network.
Common topologies include bus, star, ring, mesh, and hybrid
Bus topology connects all devices to a single cable
Star topology connects all devices to a central hub
Ring topology connects devices in a circular loop
Mesh topology connects devices in a network where each device has a direct connection to every other device
Hybrid topology is a combination of two or more topologies
Topology affects network performance, ...read more
Q118. Explain working of IDS and IPS
IDS and IPS are security systems that monitor network traffic for malicious activity and prevent attacks.
IDS (Intrusion Detection System) detects and alerts about potential attacks by analyzing network traffic and comparing it to known attack patterns.
IPS (Intrusion Prevention System) goes a step further by actively blocking malicious traffic and preventing attacks from happening.
Both systems use a combination of signature-based and behavior-based detection methods to identif...read more
Q119. how to center a div in css3
To center a div in CSS3, use the 'margin: auto;' property along with a set width.
Set the width of the div
Use 'margin: auto;' to center the div horizontally
Make sure the parent container has a defined width
Q120. function to create a transaction bin column
Create a function to generate a transaction bin column based on transaction amounts.
Create bins based on transaction amounts (e.g. $0-$100, $101-$200, etc.)
Use pandas cut() function in Python to create bins
Assign bin labels to the transactions based on the bin ranges
Q121. Managing program in distributed environments
Managing programs in distributed environments requires effective communication, collaboration, and coordination.
Establish clear communication channels and protocols
Use collaboration tools such as video conferencing and project management software
Ensure all team members have access to necessary resources and information
Establish regular check-ins and progress updates
Anticipate and address potential challenges related to time zones, language barriers, and cultural differences
Q122. What is Agile methodology?
Q123. malloc vs calloc
malloc and calloc are memory allocation functions in C programming language.
malloc() allocates memory block of given size and returns a pointer to the first byte of allocated memory.
calloc() allocates memory block of given size and initializes all bits to zero.
malloc() does not initialize the allocated memory, which may contain garbage values.
calloc() is slower than malloc() as it initializes all bits to zero.
malloc() is used when we need to allocate memory for a single varia...read more
Q124. Key challenges faced and its solutions
Key challenges faced and solutions as a Program Manager
One of the key challenges is managing stakeholder expectations
Solution is to establish clear communication channels and set realistic goals
Another challenge is managing project scope and changes
Solution is to have a change management process in place and regularly review project scope
Resource allocation and management can also be a challenge
Solution is to have a clear understanding of resource availability and prioritize ...read more
Q125. Any plan for Post-graduation(M.S)
Yes, I plan to pursue a Master's degree after graduation.
I am currently researching different programs and universities for my post-graduation studies.
I plan to specialize in a specific field related to my undergraduate degree.
I am preparing for standardized tests required for admission, such as the GRE or GMAT.
I am also working on my personal statement and gathering letters of recommendation.
I am considering potential research topics or thesis ideas for my Master's program.
Q126. Design an econmerce website
Design an ecommerce website for online shopping
User-friendly interface for easy navigation
Secure payment gateway integration
Product categorization and search functionality
Customer reviews and ratings
Responsive design for mobile compatibility
Q127. work of VISA
VISA is a global payments technology company that enables secure and convenient electronic payments.
VISA provides payment solutions for consumers, businesses, and governments worldwide.
VISA's network processes billions of transactions every year.
VISA offers a range of products and services, including credit and debit cards, prepaid cards, and mobile payments.
VISA works with merchants, financial institutions, and other partners to ensure secure and reliable payment processing....read more
Q128. Opps concept in java
Oops concept in Java refers to Object-Oriented Programming principles like Inheritance, Encapsulation, Polymorphism, and Abstraction.
Inheritance allows a class to inherit properties and behavior from another class.
Encapsulation involves bundling data and methods that operate on the data into a single unit.
Polymorphism allows objects to be treated as instances of their parent class.
Abstraction hides the implementation details and only shows the necessary features to the outsid...read more
Q129. What is ip and Mac address.
IP address is a unique numerical label assigned to each device connected to a computer network, while MAC address is a unique identifier assigned to network interfaces for communications at the data link layer.
IP address stands for Internet Protocol address and is used for identifying devices on a network.
MAC address stands for Media Access Control address and is a unique identifier assigned to network interfaces.
IP address is a logical address, while MAC address is a physica...read more
Q130. 2nd highest salary in sql / pyspark
To find the 2nd highest salary in SQL or PySpark, use the ORDER BY and LIMIT clauses.
Use ORDER BY clause to sort the salaries in descending order
Use LIMIT 1,1 to get the second highest salary
Q131. What does SQL stand for?
SQL stands for Structured Query Language.
SQL is a standard language for accessing and manipulating databases.
It is used to communicate with databases to perform tasks such as querying data, updating data, and creating tables.
Examples of SQL commands include SELECT, INSERT, UPDATE, DELETE, and CREATE.
Q132. Difference between map and hash tables
Map is an abstract data type that stores key-value pairs, while hash table is a specific implementation of a map using hashing.
Map is a general concept, while hash table is a specific implementation of a map using hashing functions.
Map allows any type of keys, while hash table typically requires keys to be hashable.
Map may not guarantee order, while hash table may use hashing to provide faster access times.
Example: Map can be implemented using a tree structure, while hash tab...read more
Q133. Indexes in DBMS
Indexes in DBMS are used to improve the performance of database queries.
Indexes are data structures that allow for faster retrieval of data from a database.
They work by creating a separate structure that contains a subset of the data in the table, organized in a way that makes it faster to search.
Indexes can be created on one or more columns in a table.
Examples of indexes include primary keys, unique indexes, and clustered indexes.
Indexes can also be used to enforce constrain...read more
Q134. Different types of testing?
Different types of testing include unit testing, integration testing, system testing, and acceptance testing.
Unit testing focuses on testing individual components or functions of a software application.
Integration testing involves testing how different components work together.
System testing tests the entire system as a whole.
Acceptance testing is performed to validate if the system meets the requirements and is ready for deployment.
Q135. design google-pay
Design Google Pay - a digital wallet platform for online payments and transactions.
Allow users to securely store payment information such as credit/debit cards, bank accounts, and loyalty cards.
Enable users to make payments in stores, online, and within apps using their stored payment methods.
Implement security features like biometric authentication, tokenization, and encryption to protect user data.
Provide features for splitting bills, requesting money, and sending money to ...read more
Q136. HLD of recursive
High Level Design (HLD) of recursive functions in software development.
Recursive functions call themselves to solve smaller instances of the same problem.
HLD of recursive functions involves defining the base case, recursive case, and termination condition.
Example: HLD of a recursive function to calculate factorial of a number involves defining base case as factorial(0) = 1.
Q137. what is impairment
Impairment refers to a reduction in the value of an asset on the balance sheet.
Impairment occurs when the carrying amount of an asset exceeds its recoverable amount.
It is typically recorded as a non-cash charge on the income statement.
Common examples include impairment of goodwill, intangible assets, and property, plant, and equipment.
Q138. Design Fitness Tracker
Q139. DSA on Strings and arrays
Q140. System design of pusub
Pubsub is a messaging pattern where senders (publishers) distribute messages to multiple receivers (subscribers) through a central hub.
Pubsub allows for decoupling of components in a system.
Messages are typically sent asynchronously.
Common implementations include Kafka, RabbitMQ, and Google Cloud Pub/Sub.
Q141. Write new rest API
Design a new REST API for a Senior Consultant Engineer position
Define the endpoints and HTTP methods for the API
Design the request and response data structures
Implement authentication and authorization mechanisms
Document the API using OpenAPI or Swagger
Q142. Sorting algorithm
Sorting algorithm is a method of arranging elements in a specific order.
Sorting algorithms can be categorized as comparison-based or non-comparison-based.
Examples of sorting algorithms include bubble sort, merge sort, quick sort, and insertion sort.
Q143. Expectation from us
I expect a supportive work environment, opportunities for growth, and clear communication.
Clear communication on project goals and expectations
Opportunities for professional development and growth
Supportive team environment
Regular feedback and performance evaluations
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