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2103 Curated Machine Learning, Data Science, AI & LLMs Interview Questions
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Top 24 Searching Interview Questions

Entry Junior Mid Senior Expert
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Searching Theoretical Questions

Q1:   

Explain what is Binary Search

 JSJavaPY Related To: Python
Add to PDF   Junior 
Q2:   

Explain what is Linear (Sequential) Search and when may we use one?

 JSPY Related To: Python
Add to PDF   Junior 
Q3:   

Explain why complexity of Binary Search is O(log n)?

  
 Add to PDF   Mid 
Q4:   

What is a Jump (or Block) Search?

 JSJavaPY Related To: Python
 Add to PDF   Mid 
Q5:   

What is an example of Interpolation Search being slower than Binary Search?

  
 Add to PDF   Mid 
Q6:   

Compare Binary Search vs Linear Search

  
 Add to PDF   Mid 
Q7:   

Explain what is Interpolation Search

 JSPY Related To: Python
 Add to PDF   Mid 
Q8:   

Recursive and Iterative Binary Search: Which one is more efficient and why?

  
 Add to PDF   Mid 
Q9:   

Explain some Linear Search optimization techniques

  
 Add to PDF   Mid 
Q10:   

What is the optimal block size for a Jump Search? Explain.

  
 Add to PDF   Senior 
Q11:   

How to apply Binary Search O(log n) on a sorted Linked List?

  Related To: Linked Lists
 Add to PDF   Senior 
Q12:   

Explain what is Ternary Search?

 CSJava 
 Add to PDF   Senior 
Q13:   

How is it possible to do Binary Search on a Doubly-Linked List in O(n) time?

  Related To: Linked Lists
 Add to PDF   Senior 
Q14:   

For Binary Search why do we need round down the average? Could we round up instead?

  
 Add to PDF   Senior 
Q15:   

Why use Binary Search if there's ternary search?

  
 Add to PDF   Expert 
Q16:   

Is Sentinel Linear Search better than normal Linear Search?

  
 Add to PDF   Expert 
Q17:   

Why would you ever do Binary Search on a Doubly-Linked list?

  Related To: Linked Lists
 Add to PDF   Expert 
Q18:   

When Jump Search is a better alternative than a Binary Search?

  
 Add to PDF   Expert 

Searching Practical Challenges

Q1:   

Write a program for Recursive Binary Search

 JSJavaPY Related To: Python
  Add to PDF   Mid 
Q2:   

Explain how does the Sentinel Search work?

 CSPY Related To: Python
  Add to PDF   Mid 
Q3:   

Which of the following algorithms would be the fastest?

  Related To: Sorting
  Add to PDF   Mid 
Q4:   

What's wrong with this Recursive Binary Search function?

  
  Add to PDF   Mid 
Q5:   

Explain what is Fibonacci Search technique?

 CSJSJavaPY Related To: Divide & Conquer, Fibonacci Series, Data Structures, Python
  Add to PDF   Senior 
Q6:   

Explain when and how to use Exponential (aka Doubling or Galloping) Search?

 JSPY Related To: Python
  Add to PDF   Senior 
 

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