Colan Infotech Interview Questions, Process, and Tips

Q1. Which is muteable in python? (list,tuple,string,int,float)
Ans. 
Lists are mutable in Python.
• Lists can be modified after creation, allowing for addition, removal, and modification of elements.

• Tuples, strings, integers, and floats are immutable in Python.

• Example: list_example = [1, 2, 3]; list_example[1] = 5 # modifies the list element at index 1 to 5.
Answered by AI
Add your answer
Q2. Str="Hello world" print(str[4:8] )
Ans. 
The code will print 'o wo', which is the substring of 'Hello world' starting from index 4 up to index 7.
• The slicing operation str[4:8] extracts characters from index 4 to index 7 (exclusive) from the string 'Hello world'.

• The index 4 corresponds to the character 'o' and index 7 corresponds to the character 'd'.

• Therefore, the output of print(str[4:8]) will be 'o wo'.
Answered by AI
Add your answer

Q1. He questioned me from htm,css,js,sql,python,oops, little bit questions on python
Add your answer
Q2. Write down 10 tags in html
Ans. 
List of 10 common HTML tags used for web development
• <div> - defines a division or section in an HTML document

• <p> - defines a paragraph

• <a> - defines a hyperlink

• <img> - defines an image

• <ul> - defines an unordered list

• <li> - defines a list item

• <h1> to <h6> - defines headings

• <table> - defines a table

• <form> - defines an HTML form for user input

• <input> - defin
Answered by AI
Add your answer
Q3. Write down 10 properties in css
Ans. 
CSS properties control the visual presentation of elements on a webpage.
• color: sets the color of text

• font-size: determines the size of text

• background-color: specifies the background color of an element

• border: defines the border around an element

• margin: sets the margin outside an element

• padding: determines the padding inside an element

• text-align: aligns text within an element

• display: specifies how an element is displaye...read more
Answered by AI
Add your answer

Q1. Types of spark clusters, uses of all types of clusters
Ans. 
There are three types of Spark clusters: standalone, YARN, and Mesos. Each type has different use cases.
• Standalone cluster: Suitable for development and testing purposes.

• YARN cluster: Ideal for running Spark on Hadoop clusters.

• Mesos cluster: Used for running Spark on Mesos clusters or in cloud environments.

• Standalone cluster can be set up on a single machine or a group of machines.

• YARN cluster leverages Hadoop's resour...read more
Answered by AI
Add your answer
Q2. Different types of optimization techniques
Ans. 
Optimization techniques are methods used to improve efficiency and performance of systems or processes.
• Mathematical optimization: using mathematical models and algorithms to find the best solution

• Heuristic optimization: using trial and error or rule-based methods to find good solutions

• Metaheuristic optimization: using higher-level strategies to explore the search space efficiently

• Constraint optimization: optimizing sol...read more
Answered by AI
Add your answer
Q3. Broadcast join usecase
Add your answer
Q4. Stored procedure
Add your answer
Q5. Sql - joins queries
Add your answer

Q1. Spark scenario based questions troubleshooting questions
Add your answer

Q1. Questions based on php basics
Add your answer

Q1. Technical interview with team lead
Add your answer

Q1. Technical interview with project head
Add your answer

Remove the duplicate number in the array

Experience person treating like giving paper give String bases on question and asked no worst experience.

Q1. Senior asking again what he knows . explain project experience and they not asking about your related your question.this is happening in this company.
Add your answer

Q1. Asked most question javascript so prepare all important interview questions in javascript
Add your answer