Fortanix Software Engineer Interview Questions and Answers

Psuedo code based test

Q1. Coding question in any language of choice
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Q1. Multiple questions based on networking, OS, DSA, ML, puzzles and one coding question as well
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Q1. Interview with manager - combination of technical and behavioral
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Q1. Interview with Director - Technical theory questions based on networking
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Q1. No specific questions
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Q1. Question on OOPS, c++
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Q2. Questions on resume
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Basic coding questions

Q1. Core subjects like Operating System, Networking
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Q2. TCP, UDP protocols, working
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Q3. OSI, TC/IP working model
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Mcqs + 2 coding questions fairly easy one

Q1. Implement something which you donot know by researching
Ans. 
Implementing a neural network for image recognition
• Research different types of neural networks such as Convolutional Neural Networks (CNNs) and Recurrent Neural Networks (RNNs)

• Study how to preprocess image data and feed it into the neural network

• Learn about popular deep learning frameworks like TensorFlow or PyTorch

• Experiment with training a neural network on a dataset like MNIST for digit recognition
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Q1. Traversing the web pages which has links to other web pages in specific orders
Ans. 
Traversing web pages with links in specific orders requires web scraping and following the links recursively.
• Use web scraping tools like BeautifulSoup or Scrapy to extract links from web pages.

• Implement a recursive function to follow the links in specific orders (e.g. depth-first or breadth-first).

• Track visited pages to avoid infinite loops or revisiting the same pages.

• Handle errors and exceptions when accessing web pa
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Q2. Heap implementation
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Easy to medium leetcode

Q1. Core fundamentals
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Q2. Networking, operating System
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Q1. Networking protocols
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Q2. Like UDP AND TCP TRAFFIC FLOW
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Q1. Salary discussion
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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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Consists of 3 sections: maths, english and C/C++ questions

Q1. Questions based on C/C++ coding.
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Q2. Sorting, recursion and other coding questions asked.
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Q1. What is your family background?
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Q2. Where do you see yourself in 5 years?
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Q3. Tell me about yourself.
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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
Ans. 
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
Ans. 
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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