Cerence Senior Software Engineer 1 Interview Questions and Answers

Data structure related question

Q1. Quesitions related to data structure, cloud
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Q2. Find the second highest integer
Ans. 
To find the second highest integer in an array, sort the array in descending order and return the second element.
• Sort the array in descending order

• Return the second element in the sorted array

• Handle edge cases like duplicates or small arrays
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Q3. Question related to two sum
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Q4. Some sliding window problems
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Q1. General Behavioral Questions
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Q1. Current company project and tech stack related
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Q2. Very basic selenium and java interview questions asked verbally
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Q3. 30 min interview
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Q1. Write code in java for following input String s = "abdc112kg45ldy4p9" to get output sum = 170.
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Q2. Some basic selenium, testng, cucumber bdd questions
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Q3. Its a 40 min coding round
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Q1. Java code in order to find the day if we give jan 1 as monday. then what day is sept 14.
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Q2. Selenium Xpath related questions to find it in website of flipkart sellers page.
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Q3. Show nullpointer error using java code.
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Q4. Selenium, TestNG, Cucumber Questions
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Q5. 45 min high level technical round
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Q1. General discussion related to current company tecstack and work.
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Q2. General Managerial Round/HR Round questions related to cultural or behavioral fit.
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Q3. 30 min short discussion
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Q1. Fibonacci, swap without 3rd var
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Q2. Non repetitive char in string
Ans. 
Find the first non-repetitive character in a string.
• Iterate through the string and count the occurrences of each character.

• Return the first character with a count of 1.
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Scenario based questions

Create an API using Notepad to check if a string is a palindrome or not.

Q1. Solid principal
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Q1. Sql related questions were asked
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Q2. Manual testing questions were asked
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Q3. Joins questions
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Q4. Where clause questions
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Q5. Manual testing questions
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Basic OOP questions for python programming language

Q1. What's abstraction
Ans. 
Abstraction is the concept of hiding complex implementation details and showing only the necessary information to the user.
• Abstraction allows users to focus on what an object does instead of how it does it

• It helps in reducing complexity and improving efficiency in software development

• Example: In object-oriented programming, abstract classes and interfaces are used to achieve abstraction
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Q2. What's the difference between SQL and NoSQL database
Ans. 
SQL databases are relational databases with structured data, while NoSQL databases are non-relational databases with flexible, unstructured data.
• SQL databases use structured query language for defining and manipulating data, while NoSQL databases use different query languages or APIs.

• SQL databases are table-based, with a predefined schema, while NoSQL databases are document, key-value, wide-column, or graph-based.

• SQL d...read more
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Q1. Reverse a linked list
Ans. 
Reverse a linked list by changing the direction of pointers
• Start with three pointers: current, prev, and next

• Iterate through the linked list, updating pointers to reverse the direction

• Update the head of the linked list to the last node after reversing
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Q2. Implement binary search algorithm
Ans. 
Binary search algorithm efficiently finds the target value in a sorted array.
• Start by defining the low and high indices of the array.

• Calculate the mid index and compare the target value with the value at mid.

• If target is less than mid value, update high to mid-1; if greater, update low to mid+1.

• Repeat until target is found or low is greater than high.
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Q1. Brief Introduction and basic questions
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Q2. Future plans and how am i going to achieve them
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Q1. How to identify if a queue is circular
Ans. 
A circular queue can be identified by checking if the rear pointer is one position behind the front pointer.
• Check if rear pointer is one position behind front pointer

• Check if front pointer is at index 0 and rear pointer is at index n-1 in an array of size n

• Check if front pointer is at index rear+1 modulo n in an array of size n
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Q1. Design notification system
Ans. 
Design a notification system for a software application.
• Identify the types of notifications needed (e.g. email, SMS, in-app)

• Consider the frequency and urgency of notifications

• Implement a notification queue to handle multiple notifications

• Include user preferences for notification settings

• Utilize push notifications for real-time updates
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Write multiple polyfills for array

Know your resume and your basics

Know class diagrams. Very Huge for workday.