AllGoVision Technologies Software Engineer Interview Questions and Answers

Q1. Easy coding challenge
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Q1. Moderate coding challenge
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Q2. System Design Question
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Q1. Standard HR round
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2 Coding questions on Google Form

Q1. Questions on C/C++ & DS
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Q2. Singly Linked List
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A singly linked list is a data structure where each element points to the next element in the list.
• Each element in a singly linked list contains a value and a pointer to the next element.

• Traversal in a singly linked list is done sequentially from the head to the tail.

• Insertion and deletion operations are efficient in a singly linked list compared to an array.
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Q1. Why we should not assign uniform weights in neural network
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Uniform weights in neural network can lead to overfitting and slow learning.
• Uniform weights can cause all neurons to behave similarly, leading to redundancy and lack of diversity.

• It can also cause overfitting, where the network becomes too specialized to the training data and performs poorly on new data.

• Non-uniform weights allow the network to learn more efficiently and effectively by assigning different importance to ...read more
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Q2. Difference between overfitting and underfitting
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Overfitting is when a model is too complex and fits the training data too well, while underfitting is when a model is too simple and cannot capture the underlying patterns in the data.
• Overfitting occurs when a model is trained too well on the training data and cannot generalize well to new data

• Underfitting occurs when a model is too simple and cannot capture the underlying patterns in the data

• Overfitting can be detecte...read more
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Q1. Normal discussion about salary
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Q1. Define Dynamic memory allocation and the syntax in C. Explain the Memory map in C. Usage of Structures and Unions.
Ans. 
Dynamic memory allocation in C allows for allocating memory at runtime. Memory map in C shows how memory is organized. Structures and unions are used to group related data.
• Dynamic memory allocation in C is done using functions like malloc(), calloc(), realloc().

• Memory map in C shows the layout of memory segments like stack, heap, data, and code.

• Structures in C allow grouping related data under a single name. Example: s...read more
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Q2. Define Linked list, add, delete and traverse a Linked list. Difference between Singly and Doubly LL.
Ans. 
A linked list is a data structure where each element points to the next element in the sequence. Adding, deleting, and traversing a linked list involves manipulating these pointers.
• Linked list: a data structure where each element (node) has a reference to the next element

• Add to linked list: create a new node and update the pointer of the last node to point to the new node

• Delete from linked list: update the pointer of t...read more
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Q3. Define the classification performance metrics. ROC-AUC curve. What is the Precision-Recall tradeoff, when will there be no tradeoff.
Ans. 
Classification performance metrics evaluate the performance of a machine learning model in predicting categorical outcomes.
• ROC-AUC curve measures the tradeoff between true positive rate and false positive rate at various thresholds.

• Precision-Recall tradeoff involves balancing the precision and recall of a model. Higher precision typically means lower recall and vice versa.

• There will be no tradeoff in Precision-Recall w...read more
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Q1. Define and write a program for Heap using List. (Python)
Ans. 
A Heap is a binary tree data structure where the key at each node is greater than or equal to the keys at its children.
• Create a class for Heap with methods like insert, delete, and heapify.

• Use a list to store the elements of the heap.

• Implement the heapify function to maintain the heap property after insertions and deletions.
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Q2. Implement stack as a list (Python).
Ans. 
Implement stack using list in Python
• Create a list to store the elements of the stack

• Use append() to push elements onto the stack

• Use pop() to remove elements from the stack
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Q3. Finding an element in an array. (Python)
Ans. 
Use Python's built-in 'in' keyword to find an element in an array of strings.
• Iterate through the array and check if the element is present using 'in' keyword.

• Return True if element is found, False otherwise.

• Example: array = ['apple', 'banana', 'cherry'], element = 'banana', return True.
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Q1. General discussion about the company and their projects. CTC was not discussed, it was sent over the email.
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Q2. Are you willing to work overtime?
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