Qualcomm Senior Software Engineer Interview Questions, Process, and Tips

Q1. Pointer related questions.
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Q2. Basic puzzles
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Some question on memory management and some puzzles.

Problems related to pointer like in this scenario what should be the output etc.

Q1. Invert bits of a number
Ans. 
Invert the bits of a given number
• Use bitwise XOR operator (^) with 1 to flip each bit

• Repeat the process for all bits in the number

• Return the inverted number
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Q2. How do you support backward compatibility whiel designing a system
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Backward compatibility can be supported by using versioning, deprecation strategies, and maintaining clear communication with users.
• Use versioning to clearly distinguish between different versions of the system

• Implement deprecation strategies to phase out old features gradually

• Maintain clear communication with users about upcoming changes and provide migration paths

• Consider using compatibility layers or adapters to bri...read more
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Q1. Move the 4 cubes from middle of the screen to left, right, bottom and top. Also, it should keep rotating and stop rotation once it reaches there.
Ans. 
Move rotating cubes to different positions on screen and stop rotation once reached.
• Create 4 animations to move each cube to left, right, bottom, and top of the screen

• Add rotation animation to each cube

• Stop rotation animation once cube reaches the desired position
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Q2. 2 logical questions where asked.
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Q1. How would I integrate/embed Unity application into Android.
Ans. 
Integrating Unity application into Android involves exporting the Unity project as an Android project and then integrating it with Android Studio.
• Export the Unity project as an Android project

• Import the project into Android Studio

• Modify the Android manifest file to include necessary permissions and settings

• Integrate UnityPlayerActivity into the Android application

• Build and run the Android application on a device or emu
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Q2. Interviewer checked my debugging skills
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Q1. Explain your recent projects from your resume
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Q1. Add a node to the head of linked list
Ans. 
To add a node to the head of a linked list, create a new node, set its next pointer to the current head, and update the head pointer to the new node.
• Create a new node with the desired data

• Set the new node's next pointer to the current head of the linked list

• Update the head pointer to point to the new node
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