Praj Industries Engineer Trainee Interview Questions and Answers

Android architecture stack is a set of layers that make up the Android operating system.

• The stack includes four main layers: Linux kernel, native libraries, Android runtime, and application framework.

• The Linux kernel provides low-level system functionality.

• Native libraries are written in C or C++ and provide access to hardware-specific features.

• The Android runtime includes the Dalvik virtual machine and core libraries.

• ...read more

AIDL stands for Android Interface Definition Language, used for inter-process communication in Android.

• AIDL is used to define the interface between client and service in Android.

• It allows communication between different processes in Android.

• AIDL is used to pass complex data types between processes.

• AIDL is similar to Remote Procedure Call (RPC) in other programming languages.

• Example: AIDL is used in Android to implement...read more

Hash set and hash map are data structures used to store key-value pairs for efficient retrieval.

• Hash set stores unique values without any specific order.

• Hash map stores key-value pairs and allows fast retrieval of values based on keys.

• Both use hashing to map keys to their corresponding values.

• In Java, HashSet and HashMap are implementations of these data structures.

Yes, I am willing to work at any location for the Senior Engineer position.

• I am open to relocating for the right opportunity

• I have experience working in different locations

• I am flexible and adaptable to new environments

I have a proven track record of staying calm and focused in challenging situations, allowing me to problem-solve effectively.

• I have experience working in high-pressure environments and have successfully delivered projects on time despite obstacles.

• I am adaptable and can quickly assess a situation to determine the best course of action.

• I have strong problem-solving skills and can think creatively to find solutions in ad