Cisco Senior Software Developer Interview Questions and Answers

It includes two DSA questions and some aptitude questions

Q1. Introduce yourself
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Q2. Give the maximum element at any point of time for after pop and push
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Q3. Reverse a string
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Q1. Java basics , oops , spring
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Q1. Manger round basics behavior
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Normal dsa Basics and aptitude.

Q1. Give the elements of an array that sum up to given number.
Ans. 
Find elements in array that sum up to given number
• Use a nested loop to iterate through each pair of elements in the array

• Check if the sum of the pair equals the given number

• Return the pair of elements if found, otherwise continue iterating
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Q2. Binary search using recursion.
Ans. 
Binary search is a search algorithm that finds the position of a target value within a sorted array.
• Divide the array into two halves and compare the target value with the middle element.

• If the target value is equal to the middle element, return the index.

• If the target value is less than the middle element, recursively search the left half.

• If the target value is greater than the middle element, recursively search the ri
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Q1. Why should we hire you?
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Q2. Why are you interested to join juniper?
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Q1. Find the memory of the given structure (Struct padding is the hint)
Ans. 
The question asks to find the memory of a given structure by considering struct padding.
• Struct padding refers to the unused bytes added to align the members of a structure.

• To find the memory of a structure, we need to consider the size of each member and the padding added.

• The total memory of a structure is the sum of the sizes of its members and the padding.
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Q2. Write code to find the position of a number in a BST
Ans. 
Code to find the position of a number in a BST
• Implement a recursive function to traverse the BST

• Compare the target number with the current node value

• If the target is smaller, go to the left subtree; if larger, go to the right subtree

• Repeat until the target is found or the subtree is null
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Q3. Create a Trie data structure and perform insertion and search on it.
Ans. 
A Trie is a tree-like data structure used for efficient retrieval of strings. It supports insertion and search operations.
• A Trie is also known as a prefix tree.

• Each node in the Trie represents a character.

• The root node represents an empty string.

• Each node can have multiple children, each representing a different character.

• Insertion involves traversing the Trie and creating new nodes as needed.

• Search involves traversing...read more
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Q1. Os , CPP , bit manipulation
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Q1. Os , threads,cpp, python
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Generic dotnet questions mcq

Q1. .net, c# , sql , async questions
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One problem is given need to make logic and your current project details

Managerial round was taken at the end