Sandvine Software Engineer Interview Questions and Answers

Hacker rank, 3 questions with 1 hour duration

Q1. Stack parenthesis matching
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Q2. Linked List reversal
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Q1. Operating System basics
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Q2. Behavorial questions
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Q3. Networking Basics
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Difficult online round

Q1. Arrays from neetcode
Ans. 
Arrays are a collection of strings in programming used to store multiple values under a single variable name.
• Arrays are declared using square brackets []

• Each element in an array is accessed by its index, starting from 0

• Example: var fruits = ['apple', 'banana', 'orange']
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Q2. Linked list from neetcode
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Q1. Trees in neet code
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Trees in neet code refer to the implementation of tree data structures in coding challenges on the platform NeetCode.
• Trees are a common data structure used in coding challenges to represent hierarchical relationships between data.

• Common tree operations include traversal (inorder, preorder, postorder), insertion, deletion, and searching.

• Examples of tree-related coding challenges on NeetCode include implementing a binary...read more
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Q2. Trees in leet code
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Trees in leetcode are a common topic for coding interviews, involving various tree traversal and manipulation techniques.
• Understand different tree traversal methods like inorder, preorder, and postorder.

• Learn about common tree algorithms like finding the height, diameter, and lowest common ancestor.

• Practice solving tree-related problems on leetcode to improve your skills.
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Basic coding questions were there related to string operations

Q1. Technical questions were asked related to networking
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Q2. What is tls handshake
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TLS handshake is the process of establishing a secure connection between a client and a server.
• TLS handshake is initiated by the client and involves a series of steps to negotiate encryption parameters and exchange cryptographic keys.

• It ensures the authenticity, integrity, and confidentiality of data transmitted over the network.

• The handshake includes the ClientHello, ServerHello, Certificate Exchange, Key Exchange, an...read more
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Q3. What happens when you hit some url in browser
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When you hit a URL in a browser, a request is sent to the server and the server responds with the requested webpage.
• Typically, the browser sends an HTTP GET request to the server.

• The server processes the request and generates a response.

• The response may include HTML, CSS, JavaScript, and other resources needed to render the webpage.

• The browser receives the response and renders the webpage for the user to view and inter...read more
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Q4. What are different protocols you have worked on
Ans. 
I have worked on various protocols including HTTP, TCP/IP, and MQTT.
• HTTP (Hypertext Transfer Protocol) - used for communication between web browsers and servers

• TCP/IP (Transmission Control Protocol/Internet Protocol) - the foundation of the internet

• MQTT (Message Queuing Telemetry Transport) - a lightweight messaging protocol for IoT devices
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