Chetu Interview Questions, Process, and Tips

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Q1. Difference between cfset and cfparam
Ans. 
cfset is used to set a variable value, while cfparam is used to initialize a variable if it does not already exist.
• cfset is used to assign a value to a variable, while cfparam is used to initialize a variable if it does not already have a value

• cfset can be used multiple times to change the value of a variable, while cfparam will only initialize the variable once

• Example: vs
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Q2. Database connection with CFML
Ans. 
Database connection with CFML involves creating a datasource and using CFQUERY tag to interact with the database.
• Create a datasource in ColdFusion Administrator

• Use CFQUERY tag to execute SQL queries

• Use CFQUERYPARAM tag to prevent SQL injection

• Example: SELECT * FROM myTable
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Q1. Situation based javascript questions
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Q2. Logical question to find duplicate array elements
Ans. 
Use a hash set to find duplicate elements in an array of strings.
• Create a hash set to store unique elements.

• Iterate through the array and check if each element is already in the hash set.

• If it is, then it is a duplicate element.

• Example: ['apple', 'banana', 'apple', 'orange'] should return 'apple' as a duplicate element.
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Q1. Basic Questions about data warehousing
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Q2. Dbt Scenarios
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CBT-based assessments in aptitude and pseudocode for the MCA program.

Q1. React development basic questions
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Q2. Basic html, css, js
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Q3. Basic JSX and introduction of react
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Q4. Basic state management like useState, useeffect, usecontext
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Q5. Redux for global state management
Ans. 
Redux is a popular library for managing global state in React applications.
• Redux helps in managing the state of the entire application in a single store.

• It provides a predictable state container that can be accessed and modified using actions and reducers.

• Redux allows for a unidirectional data flow, making it easier to debug and trace changes in the application state.

• It is commonly used in large-scale applications wher...read more
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