Alert Enterprises Senior Software Engineer Interview Questions and Answers

Fundamentals of Data Structures and Algorithms, including SQL.

Q1. Basics of DSA and Algo and sql
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Q2. Basics
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Q1. Details on previus project
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Q2. B
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Q1. Basics of DSA and algo ..sql
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Q1. Simple task to fetch cart and display items in the cart
Ans. 
Fetch cart items and display them
• Create a function to fetch cart items from database

• Display the items in the cart on the user interface

• Handle empty cart scenarios

• Consider pagination for large number of items
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Q2. React hooks, life cycle methods, error boundaries, hoc
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Q1. Simple task to fetch characters and their movies
Ans. 
Fetch characters and their movies
• Use API like IMDb or The Movie Database to fetch movie data

• Parse the data to extract characters and their associated movies

• Store the characters and movies in an array of strings
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Q1. Culture based questions
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Q1. What is Node.js event loop and how its work?
Ans. 
Node.js event loop is a mechanism that allows Node.js to perform non-blocking I/O operations asynchronously.
• Event loop is responsible for handling asynchronous operations in Node.js.

• It allows Node.js to perform multiple operations simultaneously without blocking the execution.

• Event loop continuously checks the event queue for new events and executes them in a non-blocking manner.

• Callbacks are used to handle the complet
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Q2. DBMS questions like joins
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- Basic data structures questions.
- Node.js specific questions.

Q1. Basic managerial questions
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Q1. Explian oops concepts
Ans. 
Object-oriented programming concepts that focus on classes and objects for better code organization and reusability.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

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

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

• Abstraction: Hiding the complex implementation det...read more
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Q2. Types of waits in selenium
Ans. 
Types of waits in Selenium include implicit, explicit, and fluent waits.
• Implicit wait: Waits for a certain amount of time before throwing a NoSuchElementException.

• Explicit wait: Waits for a certain condition to occur before proceeding further in the code.

• Fluent wait: Waits for a condition to be true with a specified frequency of checking.

• Example: driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
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Q1. Salary dsicussion
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Q2. Previous company details
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Q1. What are TMG events?
Ans. 
TMG events refer to events related to Threat Management Gateway, a Microsoft network security product.
• TMG events are generated by Threat Management Gateway (TMG), a network security product developed by Microsoft.

• These events provide information about network traffic, security threats, and system health.

• Examples of TMG events include firewall rule violations, malware detection, and system errors.
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Q2. Events in interactive report?
Ans. 
Events in interactive report refer to user interactions like clicking, hovering, or scrolling.
• Events can trigger actions or functions in the report.

• Common events include click, hover, scroll, keypress, etc.

• Events can be used to enhance user experience and interactivity.

• Examples: Clicking on a data point to view more details, hovering over a chart to see tooltips.
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Q3. Difference between RFC and BAPI
Ans. 
RFC is a protocol for requesting services from a server, while BAPI is a specific type of RFC used in SAP systems.
• RFC stands for Remote Function Call and is a protocol used to request services from a server over a network.

• BAPI stands for Business Application Programming Interface and is a specific type of RFC used in SAP systems for integrating external applications with SAP.

• RFC can be used in various systems and techn...read more
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Q4. What is ABAP on HANA
Ans. 
ABAP on HANA is a programming language that combines ABAP with the in-memory database technology of SAP HANA.
• ABAP on HANA allows developers to leverage the speed and power of SAP HANA for their ABAP-based applications.

• It enables real-time analytics, predictive modeling, and faster data processing.

• Developers can use ABAP on HANA to optimize existing ABAP code for better performance.

• It provides a seamless integration bet...read more
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Q5. Limitations of CDs Views
Ans. 
CDs Views have limitations in terms of performance and scalability.
• Limited support for complex queries and joins

• Performance degradation with large datasets

• Scalability issues when handling high volume of data

• Difficulty in maintaining and updating views as database schema changes
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Q1. Get minimum from stream. Query based.
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Q2. Minimum number of platforms for trains. Arrival n departure time is given.
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Q1. Basics of Html CSS & Javascript
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Q2. Projects related
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Q1. Coding question related to arrays and string
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Q2. Coding question to remove duplicate , count frequencies of occurrence of characters
Ans. 
Remove duplicates and count frequencies of characters in an array of strings.
• Iterate through each string in the array

• Use a hashmap to store characters and their frequencies

• Remove duplicates by checking if character already exists in hashmap
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Q1. React and Redux related question with coding questions related to useEffect and other hooks
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Q1. Asked regarding previous experience and willingness for reallocations and gave overall info about the project and tech they hiring for
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Q1. Salary negotiations and experience
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Q1. Design Instagram feed
Ans. 
Designing Instagram feed involves displaying user's photos and videos in a visually appealing and user-friendly manner.
• Display user's posts in a grid layout with images/videos and captions

• Allow users to like, comment, and share posts

• Implement infinite scrolling to load more posts as user scrolls down

• Include a search bar to search for specific users or hashtags
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