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CoreFlex Solutions Interview Questions and Answers
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5 interviews found
shital khangar
Selected
I applied via Naukri.com
(3 Questions)
- Q1. What is use for usememo
- Ans.
useMemo is a React hook used for memoizing expensive computations and optimizing performance.
useMemo is used to memoize the result of a function or computation.
It takes a function and an array of dependencies as arguments.
The function is only re-executed if any of the dependencies change.
It returns the memoized value, which can be used in the component.
It is useful for optimizing performance by avoiding unnecessary re-
- Q2. What use for Useeffect
- Ans.
The useEffect hook is used in React to perform side effects in functional components.
It is used to handle side effects like data fetching, subscriptions, or manually changing the DOM.
It runs after every render and can be used to replace lifecycle methods like componentDidMount and componentDidUpdate.
It takes two arguments: a function that contains the side effect logic, and an optional array of dependencies.
The functio...
- Q3. What is semantic elements
- Ans.
Semantic elements are HTML tags that give meaning to the content they wrap, making it more accessible and SEO-friendly.
Semantic elements provide structure and context to web pages.
They help search engines understand the content better.
Examples of semantic elements include
,
(1 Question)
- Q1. What is use for usememo
- Ans.
useMemo is a React hook used to memoize the result of a function and optimize performance.
useMemo is used to cache the result of a function and only recompute it when its dependencies change.
It is useful for optimizing expensive calculations or preventing unnecessary re-rendering of components.
Example: useMemo(() => calculateExpensiveValue(a, b), [a, b])
The memoized value is returned by useMemo and can be used in the c
Skills evaluated in this interview
Front end Developer Interview Questions asked at other Companies
Pushpanjali Mali
Selected
I applied via Walk-in and was interviewed in Jan 2024. There was 1 interview round.
(2 Questions)
- Q1. What is your qualifications
- Q2. Bsc physics with typing speed 30 WPM
Data Entry Operator Interview Questions asked at other Companies
Selected
I applied via Referral and was interviewed in Apr 2024. There was 1 interview round.
Typing ,Grammar ,Numbers and Ect
Data Entry Operator Interview Questions asked at other Companies
(1 Question)
- Q1. Regarding business process only no technical questions were asked
Associate SAP SD Consultant Interview Questions asked at other Companies
CoreFlex Solutions interview questions for popular designations
I applied via Referral and was interviewed in Mar 2022. There was 1 interview round.
(1 Question)
- Q1. Oops concepts java , Mysql, sevrlet, Hibernate
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Software Developer Interview Questions asked at other Companies
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I applied via Naukri.com and was interviewed in Apr 2023. There were 2 interview rounds.
(4 Questions)
- Q1. Find second max salary of employee by department in sql
- Ans.
Find second max salary of employee by department in SQL
Use GROUP BY clause to group employees by department
Use MAX() function to find the maximum salary
Use subquery to find the second maximum salary
- Q2. Find second max salary 9f employee by department using python pandas dataframe
- Ans.
Find second max salary of employee by department using pandas dataframe
Group the dataframe by department
Sort the salaries in descending order
Select the second highest salary for each department
- Q3. Python code to download file from aws s3 to local using boto3
- Ans.
Python code to download file from aws s3 to local using boto3
Install boto3 library using pip
Create an S3 client using boto3
Use the download_file method to download the file from S3 to local
- Q4. Write word count program in pyspark
- Ans.
A program to count the number of words in a text file using PySpark.
Read the text file using SparkContext
Split the lines into words using flatMap
Map each word to a tuple of (word, 1)
Reduce by key to count the occurrences of each word
Save the output to a file
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Skills evaluated in this interview
Selected
I applied via campus placement at Cochin University of Science and Technology (CUST) and was interviewed in Apr 2023. There were 3 interview rounds.
Platform - Mettl
3 Questions of medium level difficulty to do in 2 hours, typically contain concepts like DSA, DP etc.
(3 Questions)
- Q1. What is structure padding?
- Ans.
Structure padding is the insertion of unused bytes between structure members to align them on memory boundaries.
Padding is added to ensure that each member of a structure starts at a memory address that is a multiple of its size.
Padding is compiler-dependent and can vary between different platforms and architectures.
Padding can affect the size of a structure and the performance of the program.
Example: struct example { ...
- Q2. College Project discussion
- Q3. Form a dictionary from name.
- Ans.
Forming a dictionary from name
Create an empty dictionary
Iterate through each character in the name
Add the character as a key and its frequency as value in the dictionary
Skills evaluated in this interview
Senior Engineer Interview Questions & Answers
BlueBinaries Engineering and Solutions
Anonymous
posted on 10 Jul 2023
Selected
I applied via Recruitment Consulltant and was interviewed in Jan 2023. There were 4 interview rounds.
(4 Questions)
- Q1. Previous project and role?
- Q2. What is KWP2000 or UDS use for?
- Ans.
KWP2000 and UDS are communication protocols used in automotive diagnostics.
KWP2000 is used for diagnostics and flashing of electronic control units (ECUs) in older vehicles.
UDS (Unified Diagnostic Services) is a modern protocol used for diagnostics and flashing of ECUs in newer vehicles.
Both protocols allow for communication between a diagnostic tool and the vehicle's ECUs to read and clear fault codes, perform tests, ...
- Q3. How many type of ECU are there?
- Ans.
There are mainly three types of ECUs: Engine Control Unit (ECU), Transmission Control Unit (TCU), and Body Control Module (BCM).
Engine Control Unit (ECU) - controls the engine functions such as fuel injection, ignition timing, and emissions.
Transmission Control Unit (TCU) - manages the transmission system, including gear shifting and torque converter lockup.
Body Control Module (BCM) - oversees various body functions li...
- Q4. What is online and offline in CANoe?
- Ans.
Online and offline in CANoe refer to the modes of communication with the CAN bus.
Online mode allows real-time interaction with the CAN bus, sending and receiving messages.
Offline mode allows analysis of previously recorded CAN bus data without real-time interaction.
Online mode is used for testing and debugging live systems, while offline mode is used for post-analysis and simulation.
Examples: Online mode is used to mon...
(1 Question)
- Q1. Same as round one question?
(1 Question)
- Q1. Salary expectations?
Skills evaluated in this interview
Senior Software Engineer Interview Questions & Answers
Ideas2IT Technologies
Anonymous
posted on 12 Aug 2021
I applied via Approached by Company and was interviewed before Aug 2020. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. 1 What’s functional interface and benefits. 2 Transaction uses and different propagation level.
- Ans.
Functional interface is an interface with only one abstract method. Benefits include lambda expressions and improved code readability.
Functional interface allows for the use of lambda expressions, which can simplify code and improve readability.
It also enables the use of method references, which can make code more concise.
Functional interfaces are used extensively in Java 8's Stream API.
Transaction uses include ensurin...
- Q2. Different isolation levels in transactions labels and purpose.
- Ans.
Different isolation levels in transactions and their purpose.
Isolation levels determine how transactions interact with each other.
READ UNCOMMITTED: Allows dirty reads, can cause phantom reads.
READ COMMITTED: Prevents dirty reads, but allows non-repeatable reads.
REPEATABLE READ: Prevents dirty and non-repeatable reads, but allows phantom reads.
SERIALIZABLE: Prevents all three types of reads, but can cause deadlock.
Purpo...
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Executive Accountant Interview Questions & Answers
Kiran Foreign Trade
Anonymous
posted on 3 Nov 2021
I applied via Walk-in and was interviewed before Nov 2020. There were 2 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Simple details of yourself
- Q2. Your family background
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