Sandvine Software Engineer II Interview Questions and Answers

Q1. Reason for a Job change
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Q2. Requested a Counter Offer
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Q1. Explain VoLTE call from Packet core point of view?
Ans. 
VoLTE call from Packet core point of view
• VoLTE call is initiated by the UE and goes through the RAN to the packet core

• Packet core performs authentication, authorization, and routing of the call

• Media is transported over the IP network using RTP/UDP protocol

• Packet core also handles QoS and policy enforcement for the call
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Q2. Why was CUPS introduced as part of Release-14?
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CUPS was introduced in Release-14 to provide a common printing system for Unix-like operating systems.
• CUPS stands for Common Unix Printing System.

• It was introduced to replace the traditional Unix printing system LPD.

• CUPS provides a modular and extensible printing system that can support a variety of printers and print job formats.

• It also includes a web-based administration interface for managing printers and print jobs...read more
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Python script to perform ssh to vms and get some stats

Q1. What is polymorphism
Ans. 
Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to be used for different data types or classes.

• Examples include method overloading and method overriding in object-oriented programming.
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Q2. Find missing number from nth number array.
Ans. 
Find missing number from nth number array.
• Iterate through the array and calculate the sum of all numbers

• Calculate the sum of numbers from 1 to n using the formula n*(n+1)/2

• Subtract the sum of array from the sum of numbers from 1 to n to find the missing number
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Q3. Explain inheritance and it types
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Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Inheritance allows a class to reuse code from another class.

• Types of inheritance include single inheritance, where a class inherits from only one parent class, and multiple inheritance, where a class inherits from multiple parent classes.

• Example: Class B inherits from Class A, so Class B can access
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Q4. Find 2nd max elements from aaray
Ans. 
Find 2nd max element from array of strings
• Sort the array in descending order

• Skip the first element (max element)

• Return the second element
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Q1. Data structure algorithm questions related to various scenarios
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Q2. DS Algo related questions which revolved around different scenarios
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Total 60 question 30 from C/C++ output and 30 from profit-loss, find age and related to ratio

Q1. Dsa coding question, aptitude, oops, rdbms(joins and normalization)
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Q2. Rotate materix(nxn) 90 degree
Ans. 
To rotate a matrix 90 degrees, transpose the matrix and then reverse each row.
• Transpose the matrix by swapping matrix[i][j] with matrix[j][i]

• Reverse each row of the transposed matrix to get the final rotated matrix
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Q3. A pattern printing question
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Q4. Reverse doubli-linkedlist
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Q5. Preorder traversal without using recursion
Ans. 
Iterative solution to perform preorder traversal without using recursion
• Use a stack to keep track of nodes

• Start by pushing the root node onto the stack

• While the stack is not empty, pop a node, visit it, then push its right child followed by its left child onto the stack
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Q1. Introduce yourself
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Q2. Why you chose b.tech
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Q3. Why you chose cse
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Q1. Java basics , oops , spring
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Q1. Manger round basics behavior
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Q1. Find the min and max from List of Integers using java 8 streams.
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Q2. Find 2nd largest element using java 8 streams from list of integers.
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Q3. Given a Product class and some ArrayList data Find which products has price greater than 200 using java 8 streams?. Find which products having maximum price?
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Q4. Increase a value of List of Integers by *2 and written new list.
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Q5. What are the java new features?
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Q6. @Components vs @Repository
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Q7. @SpringBootApplication
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Q8. @Entity explain?
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Q9. How the database is configure?
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Q10. What is Dockerfile?
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Q11. Explain CI CD and your project deployment.
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Q12. What is mutable classes in java? How to create?
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Q1. Yet to sChedule
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Q1. Ds implementation in python
Ans. 
Data structure implementation in Python
• Use built-in data structures like lists, dictionaries, sets, etc.

• Implement custom data structures like linked lists, stacks, queues, trees, etc.

• Utilize libraries like NumPy for efficient array operations

• Practice implementing algorithms using data structures
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Q1. Leetcode medium python question
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