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Infosys Technology Analyst Interview Questions and Answers
176 Interview questions
Use the extend() method in Python to combine multiple lists into a single list.
Use the extend() method to add elements from one list to another list.
Alternatively, you can use the + operator to concatenate lists.
Example: list1 = [1, 2, 3], list2 = [4, 5, 6], combined_list = list1 + list2
MVC stands for Model-View-Controller, a software architectural pattern. Razor is a markup syntax used in ASP.NET MVC.
MVC is a design pattern that separates an application into three main components: Model, View, and Controller
Razor is a markup syntax used in ASP.NET MVC to create dynamic web pages
MVC helps in organizing code and separating concerns, making it easier to maintain and test applications
Boxing is the process of converting a value type to a reference type, while unboxing is the process of converting a reference type to a value type.
Boxing is done implicitly by the compiler when a value type is assigned to a reference type variable.
Unboxing requires an explicit cast from the reference type to the value type.
Boxing and unboxing can impact performance as they involve memory allocation and copying of ...
Garbage collection is a process in programming where the system automatically reclaims memory occupied by objects that are no longer in use.
Garbage collection helps prevent memory leaks by automatically freeing up memory that is no longer needed.
It is commonly used in languages like Java, C#, and Python.
Garbage collection can be either automatic or manual, with automatic being the most common approach.
Examples of ...
ListView is a legacy view for displaying lists in Android, while RecyclerView is a more flexible and efficient replacement.
ListView is less efficient in terms of memory and performance compared to RecyclerView.
RecyclerView provides better performance by recycling views and separating the responsibilities of layout and data management.
RecyclerView supports more advanced features like animations and item decorations...
Services and work manager are components in software development that help manage background tasks and processes.
Services are components that run in the background to perform long-running operations without affecting the user interface.
Work manager is a library that helps manage background tasks efficiently, taking into account factors like battery life and network availability.
Services can be used for tasks like ...
OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
OOP focuses on creating objects that interact with each other to solve problems.
Objects have attributes (data) and methods (functions) that operate on the data.
Encapsulation, inheritance, and polymorphism are key principles of OOP.
Example: In a car simulation program, a 'Ca...
Data providers in TestNG allow for parameterization of test methods by supplying data from external sources.
Data providers are methods annotated with @DataProvider that return a 2D array of objects to supply test method parameters
Data providers can be used to supply data from Excel sheets, CSV files, databases, etc.
Example: @DataProvider(name = "userData") public Object[][] userData() { return new Object[][] { { "...
A framework is a structured approach to solving problems or building systems, providing guidelines and best practices.
Frameworks provide a foundation for developing applications, such as Django for web development.
They promote code reusability and maintainability, like React for building user interfaces.
Frameworks often include libraries and tools that streamline development processes, such as Angular for single-p...
Configuring IPS involves setting up intrusion prevention systems to monitor and control network traffic for security.
Identify the network segments to protect, such as DMZ or internal networks.
Choose an IPS solution (e.g., Snort, Cisco Firepower) based on your needs.
Install the IPS software on a dedicated server or appliance.
Configure network interfaces and set up monitoring rules.
Define policies for traffic inspec...
Infosys Interview Experiences
167 interviews found
Anonymous
Selected
I applied via Naukri.com and was interviewed in Nov 2024. There were 2 interview rounds.
(2 Questions)
- Q1. OOPS, DI, Diff between Read-only and const
- Q2. Types of classes
- Ans.
Types of classes include abstract classes, concrete classes, interface classes, and inner classes.
Abstract classes cannot be instantiated and may contain abstract methods.
Concrete classes can be instantiated and provide implementations for all methods.
Interface classes define a contract for classes to implement.
Inner classes are classes defined within another class.
(2 Questions)
- Q1. Strength and weakness
- Q2. How do you handle difficult situations within a team?
- Ans.
I address difficult situations within a team by promoting open communication, seeking to understand all perspectives, and collaborating on solutions.
Promote open communication to address issues early on
Seek to understand all perspectives before making decisions
Collaborate with team members to find mutually beneficial solutions
Selected
I applied via Naukri.com and was interviewed in Sep 2024. There was 1 interview round.
(3 Questions)
- Q1. Java 8 features
- Q2. Microservices framework
- Q3. OOPs concepts & multi threading
Interview Preparation Tips
Selected
I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.
(1 Question)
- Q1. Angular basics,pipes ,life cycle hook pipes.
(1 Question)
- Q1. Core Java, OOPS, Design Patters, Spring Boot, IOC, SOLID Principles, SQL queries
Rahit Basu
Selected
I applied via Referral and was interviewed in Mar 2024. There were 2 interview rounds.
(4 Questions)
- Q1. Tell me yourself
- Ans.
I am a technology analyst with a strong background in data analysis and software development.
I have a Bachelor's degree in Computer Science from XYZ University
I have 5 years of experience working as a technology analyst at ABC Company
I specialize in data visualization tools such as Tableau and Power BI
I have led successful projects in implementing new software solutions for clients
- Q2. What is your skillset and based on your skill set some straight forward question in round 1 and scenario based question in round 2.
- Q3. Tell me some analytic function of sql
- Ans.
Analytic functions in SQL are used to perform calculations across a set of rows related to the current row.
Common analytic functions include ROW_NUMBER, RANK, DENSE_RANK, LEAD, and LAG.
They can be used to calculate running totals, moving averages, and identify duplicates in a dataset.
Analytic functions are typically used with the OVER() clause to define the window of rows to be used in the calculation.
- Q4. Difference between rank and dense rank
- Ans.
Rank assigns unique ranks to each distinct value, while dense rank assigns consecutive ranks to each distinct value.
Rank leaves gaps between ranks if there are ties, while dense rank does not
Rank function is used to assign a unique rank to each distinct row, while dense rank function is used to assign consecutive ranks to each distinct row
Example: If we have values 10, 20, 20, 30 - Rank would assign ranks as 1, 2, 2, 4...
(2 Questions)
- Q1. I have Oracle EBS APPS.. so I faced questions on PLSQL tuning, exception handling, XML publisher report, P2P cycle with associative table
- Q2. Bulk Binding, Bulk collect, cursor, dynamic SQL,DML/DDL Trigger
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via Naukri.com and was interviewed in May 2024. There was 1 interview round.
(3 Questions)
- Q1. Difference in POST and PUT
- Ans.
POST is used to create a new resource, while PUT is used to update an existing resource.
POST is used to create a new resource on the server.
PUT is used to update an existing resource on the server.
POST requests are not idempotent, while PUT requests are idempotent.
POST requests do not require the client to specify the URI of the new resource, while PUT requests do.
Example: POST /users creates a new user, PUT /users/123...
- Q2. Explain headers with example in HTTP
- Ans.
Headers in HTTP are additional information sent with a request or response.
Headers contain metadata about the message being sent.
Examples of headers include Content-Type, User-Agent, and Authorization.
Headers are key-value pairs separated by a colon, such as 'Content-Type: application/json'.
- Q3. What is @Qualifier annotation
- Ans.
The @Qualifier annotation is used in Spring framework to specify which bean should be autowired when multiple beans of the same type are present.
Used to resolve ambiguity when multiple beans of the same type are present
Can be used with @Autowired annotation to specify the bean to be injected
Helps in selecting the bean based on a specific qualifier value
Skills evaluated in this interview
I applied via Recruitment Consulltant and was interviewed in Apr 2024. There were 2 interview rounds.
(3 Questions)
- Q1. 1. Introduces your self 2. Ask about basic datastage questions
- Q2. 3 . Explain scd 2 and how can we build in datastage 4. Write sql query which is related to join and sub query.
- Ans.
SCD 2 is a type of slowly changing dimension in data warehousing, and can be implemented in DataStage using various techniques.
SCD 2 stands for Slowly Changing Dimension Type 2, which tracks historical changes in data over time.
In DataStage, SCD 2 can be implemented using the Change Data Capture stage or custom SQL queries.
To implement SCD 2 in DataStage, you need to identify the key columns for tracking changes, defin...
- Q3. 5. How to improve performance in Datastage
- Ans.
To improve performance in Datastage, optimize job design, use efficient coding practices, utilize parallel processing, and monitor job performance.
Optimize job design by reducing unnecessary stages and transformations
Use efficient coding practices such as avoiding unnecessary data reads and writes
Utilize parallel processing to take advantage of multiple CPU cores
Monitor job performance using Datastage Director or other...
(2 Questions)
- Q1. 1. Introduce yourself self
- Q2. 2. Why are you planing to switch job
Skills evaluated in this interview
Selected
I applied via Campus Placement and was interviewed in Oct 2024. There were 2 interview rounds.
Quants, reasoning, english
With oops concepts, data structures
Selected
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
(2 Questions)
- Q1. Change management
- Q2. Dns dhcp troubleshooting
GUTTIKONDA ARAVIND
(1 Question)
- Q1. Basic Core JAVA
(1 Question)
- Q1. Project related questions
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