Cisco Software QA Engineer Interview Questions and Answers

Q1. HR Asks general questions. past experience pass out year. current base out of and elaborated GD to me once again.
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Q1. Difference between List and Tuples? in python
Ans. 
List is mutable and Tuples are immutable in Python.
• Lists are enclosed in square brackets [], while Tuples are enclosed in parentheses ().

• Elements of a list can be changed, added or removed, while elements of a tuple cannot be changed.

• Lists are slower than tuples due to their mutable nature.

• Tuples are used for fixed data, while lists are used for dynamic data.

• Lists are used for homogenous data, while tuples are used for
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Q2. What Android basic component
Ans. 
The basic components of Android are activities, services, broadcast receivers, and content providers.
• Activities are the user interface components that allow users to interact with the app.

• Services are background components that perform long-running operations.

• Broadcast receivers are components that receive and respond to system-wide broadcast announcements.

• Content providers are components that manage a shared set of ap
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Q3. Explain about android architecture system.
Ans. 
Android architecture system is a layered architecture consisting of four main layers.
• The four main layers are Linux kernel, native libraries, application framework, and applications.

• The Linux kernel provides low-level hardware abstraction and security.

• Native libraries are written in C or C++ and provide access to hardware-specific features.

• Application framework provides high-level services such as activity management, ...read more
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Q4. How does Open GL graphics Works in android
Ans. 
OpenGL is a graphics API used in Android to render 2D and 3D graphics.
• OpenGL is a cross-platform API that allows developers to create high-performance graphics applications.

• It uses a pipeline-based model to process graphics data.

• OpenGL ES (Embedded Systems) is the version of OpenGL used in Android.

• It supports features like texture mapping, lighting, and shading.

• Developers can use OpenGL in Android to create games, visu...read more
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Q5. Design Test cases for A Deseal Car Engine. Cover all test cases
Ans. 
Design test cases for a deseal car engine
• Test for engine starting and stopping

• Test for oil pressure and temperature

• Test for fuel efficiency

• Test for exhaust emissions

• Test for engine noise and vibration
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Q1. I was asked about basic QA questions. One coding question on Recursion
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Q2. Coding question on Recursion
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Round duration - 45 minutes
Round difficulty - Medium

Timing was 12 PM. Interviewer was nice.

Q1. 
Reverse the String Problem Statement
You are given a string STR which contains alphabets, numbers, and special characters. Your task is to reverse the string.
Example:
Input:
STR = "abcde"
Output:
"e...read more
Ans. 
Reverse a given string containing alphabets, numbers, and special characters.
• Iterate through the string from end to start and append each character to a new string.

• Alternatively, use built-in functions like reverse() or slicing to reverse the string.

• Handle special characters and numbers while reversing the string.

• Ensure to consider the constraints on the length of the string and number of test cases.
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Q2. 
Move Zeros to Left Problem Statement
Your task is to rearrange a given array ARR such that all zero elements appear at the beginning, followed by non-zero elements, while maintaining the relative order of...read more
Ans. 
Rearrange an array such that all zero elements appear at the beginning, followed by non-zero elements, maintaining relative order of non-zero elements.
• Iterate through the array and maintain two pointers - one for the next position to place a zero and one for the next non-zero element.

• Swap the elements at these pointers until all zeros are moved to the left and non-zero elements are in their relative order.

• Time complexi...read more
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Q3. Write an SQL query to find the second highest salary from a table.
Ans. 
SQL query to find the second highest salary from a table
• Use the MAX() function to find the highest salary

• Use the NOT IN operator to exclude the highest salary from the results

• Order the salaries in descending order and limit the result to 1
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Round duration - 60 Minutes
Round difficulty - Medium

Online test

Q1. MCQ Questions
Based on c++,c and java basics
Ans. 
MCQ questions based on C++, C, and Java basics.
• Understand the differences between C++, C, and Java syntax and features.

• Be familiar with basic concepts like data types, control structures, and functions.

• Practice solving MCQs to improve your understanding of the languages.
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Round duration - 150 Minutes
Round difficulty - Medium

Technical interview

Q1. 
Distinct Elements in K-Sized Windows
The task is to determine the number of distinct elements in every sliding window of size 'K' across an array 'ARR' of size 'N'. A 'K' sized window is a contiguous sequ...read more
Ans. 
Calculate the count of distinct elements in each sliding window of size 'K' across an array 'ARR'.
• Use a sliding window approach to iterate through the array and keep track of distinct elements using a hashmap or set.

• Update the count of distinct elements in each window as it slides across the array.

• Return the array detailing the count of distinct elements in each 'K' sized window for each test case.
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Q2. 
MergeSort Linked List Problem Statement
You are given a Singly Linked List of integers. Your task is to sort the list using the 'Merge Sort' algorithm.
Input:
The input consists of a single line contain...read more
Ans. 
Sort a Singly Linked List using Merge Sort algorithm.
• Implement the Merge Sort algorithm for linked lists.

• Divide the list into two halves, sort each half recursively, and then merge them.

• Use a fast and slow pointer to find the middle of the list for splitting.

• Handle the base cases of empty list or single node list.

• Example: Input: 4 3 2 1 -1, Output: 1 2 3 4
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Round duration - 20 minutes
Round difficulty - Hard

Hr interview

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