ClearTrail Technologies Software Developer Interview Questions and Answers

Array duplicates and burn binary tree

Q1. Project specific
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What is javascripts, html and css

Percentage, logical reasoning

10 min and topics were chosen by ourselves

Q1. Technical interview with basic questions
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Q1. Questions from core dept
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Os,c,ds,aptitude(quants and logical)

Apti round took place in online mode but it is not proctored

This one is technical GD and shortlisted people will be divided into batches and will asked technical qns for which ppl has to answer

People who got shortlisted will be having another technical GD and the same process will be continued

Q1. 1.What is paging? Ans: it is used by Operating system to page the process
Ans. 
Paging is a memory management technique used by the operating system to store and retrieve data from secondary storage.
• Paging divides the memory into fixed-size pages and stores them in secondary storage.

• When a process needs a page, the operating system retrieves it from secondary storage and loads it into memory.

• Paging allows for efficient use of memory and helps prevent fragmentation.

• Examples of operating systems tha
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Q2. 2.what is the best sorting algorithm? Ans: Quick sort since it will be using the address of the variable,no additional memory is needed
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Q3. 3.what are all the various searching methods? Ans: BFS,DFS,binary search,linear search
Ans. 
Various searching methods include BFS, DFS, binary search, and linear search.
• BFS (Breadth-First Search) explores all the vertices at the same level before moving to the next level.

• DFS (Depth-First Search) explores as far as possible along each branch before backtracking.

• Binary search is a divide and conquer algorithm that searches a sorted array by repeatedly dividing the search interval in half.

• Linear search checks ea...read more
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Q4. 4.How does quick sort works? Ans: Quick sort works by having a pivot element and sorts by divide and conquer
Ans. 
Quick sort works by selecting a pivot element and sorting the array by divide and conquer.
• Select a pivot element from the array

• Divide the array into two sub-arrays, one with elements smaller than the pivot and the other with elements greater than the pivot

• Recursively apply the above steps to the sub-arrays

• Combine the sorted sub-arrays to get the final sorted array
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Q5. 5.What is Min heap and Max heap Ans: Heap in which the root element or parent node is larger than the child it is called Max heap and vice viresa is called Min heap
Ans. 
Max heap has the largest element at the root while Min heap has the smallest element at the root.
• Max heap is a complete binary tree where the parent node is greater than or equal to its child nodes.

• Min heap is a complete binary tree where the parent node is less than or equal to its child nodes.

• Heaps are commonly used in sorting algorithms like Heap Sort and Priority Queues.

• Insertion and deletion operations in heaps ta
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Duration was for 1 hour simple aptitude questions covering topics like speed and time, word, distance, train, stream

Technical GD on common technical topics like data networks, oops concepts, paging concepts

Basic questions were asked from topics like time, cost, profits-losses, patterns etc

Questions on microprocessors , networking and sorting algorithms

Time and distance,speed,etc

IT IS SIMPLE NETWORKING CONCPT

Q1. What is flipflop
Ans. 
A flip-flop is a digital circuit that can store a single bit of information.
• It has two stable states, 0 and 1.

• It is used in sequential logic circuits.

• Examples include D flip-flop, JK flip-flop, and T flip-flop.
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Q2. What is wlan and lan
Ans. 
WLAN stands for Wireless Local Area Network and LAN stands for Local Area Network.
• WLAN is a wireless network that allows devices to connect to the internet without the need for physical cables.

• LAN is a wired network that connects devices within a limited area such as a building or campus.

• WLAN uses radio waves to transmit data while LAN uses Ethernet cables.

• Examples of WLAN include Wi-Fi networks while examples of LAN i
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Q3. None of these of all
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