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I applied via Approached by Company and was interviewed before Jun 2023. There was 1 interview round.
Different types of transformations in Informatica include active and passive transformations, as well as union and joiner transformations.
Active transformations are those which change the number of rows that pass through them, such as Filter or Router transformations.
Passive transformations do not change the number of rows that pass through them, such as Expression or Lookup transformations.
Union transformation combine...
SCD stands for Slowly Changing Dimensions and lookups in Informatica are used to perform data transformations by looking up data from a reference table.
SCD is used to track changes to dimension data over time.
There are three types of SCD - Type 1, Type 2, and Type 3.
Lookups in Informatica are used to perform data transformations by looking up data from a reference table.
Lookups can be connected to different types of so...
Delete, drop, truncate, and join are SQL commands with different functionalities.
DELETE: Removes specific rows from a table based on a condition.
DROP: Deletes an entire table or database object from the database.
TRUNCATE: Removes all rows from a table, but keeps the table structure.
JOIN: Combines rows from two or more tables based on a related column between them.
I applied via Company Website and was interviewed before Sep 2023. There were 2 interview rounds.
2 questions (1- DSA, 2- SQL)
I have used various Python libraries such as NumPy, Pandas, Matplotlib, and Scikit-learn.
NumPy for numerical computing and array manipulation
Pandas for data manipulation and analysis
Matplotlib for data visualization
Scikit-learn for machine learning algorithms
I applied via Company Website and was interviewed before Jan 2024. There was 1 interview round.
TCS NQT test was conducted comprising of Aptitude, Verbal and Coding
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I applied via Naukri.com and was interviewed in Nov 2022. There were 3 interview rounds.
TCS interview questions for designations
2 coding questions based on arrays and strings.
Securing a web app involves implementing various measures to protect against attacks and vulnerabilities.
Use HTTPS to encrypt data in transit
Implement strong authentication and authorization mechanisms
Regularly update and patch software and libraries
Use input validation and output encoding to prevent injection attacks
Implement security headers to prevent cross-site scripting and clickjacking
Regularly perform security a...
Scaling a web app involves optimizing resources, load balancing, and implementing caching strategies.
Use load balancers to distribute traffic across multiple servers
Optimize database queries and use caching to reduce server load
Implement auto-scaling to add or remove resources based on traffic
Use content delivery networks (CDNs) to serve static assets
Consider using microservices architecture to break down the app into ...
Get interview-ready with Top TCS Interview Questions
I applied via Campus Placement and was interviewed before May 2023. There were 3 interview rounds.
Easy to medium difficulty questions were asked. Topics from QA, Reasoning and ENglish were mostly asked.
Was held on the TCS ion platform from home. Consisted of 2 basic questions around array and String manipulation in Python/Java. Compiler is very bad as it won't tell you accurately where and what something went wrong. The editor offers no autocomplete, suggestions, code beautify, etc.
I applied via Campus Placement and was interviewed before May 2023. There were 4 interview rounds.
Numerical Ability,Logical Reasoning,Verbal Ability,Coding
Java 8 introduced several new features including lambda expressions, functional interfaces, streams, and default methods.
Lambda expressions allow you to write code in a more concise way.
Functional interfaces are interfaces with a single abstract method, used for lambda expressions.
Streams provide a way to work with sequences of elements.
Default methods allow interfaces to have method implementations.
Example: Lambda exp...
I applied via Campus Placement and was interviewed before Jun 2023. There were 2 interview rounds.
First round was of Aptitude and Coding. It inovled questions testing your logical,mathematical and reasoning skills. Two coding questions was of easy and medium difficulty
Simple coding question based on permutation and combination.
SQL joins are used to combine data from two or more tables based on a related column between them.
Inner join: returns only the matching rows from both tables
Left join: returns all the rows from the left table and matching rows from the right table
Right join: returns all the rows from the right table and matching rows from the left table
Full outer join: returns all the rows from both tables, with NULL values in the colu...
Garbage collector in JAVA is a program that automatically frees up memory by removing objects that are no longer in use.
Garbage collector is a part of JVM that manages memory allocation and deallocation
It runs in the background and frees up memory by removing objects that are no longer in use
It helps prevent memory leaks and improves performance
Examples of garbage collectors in JAVA are Serial, Parallel, CMS, and G1
I applied via Campus Placement and was interviewed before Sep 2022. There were 4 interview rounds.
Medium to high level aptitude questions in tcs NQT
2 medium level coding questions in nqt test included
Some of the top questions asked at the TCS System Engineer Hardware interview -
The duration of TCS System Engineer Hardware interview process can vary, but typically it takes about less than 2 weeks to complete.
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