Alstom Transportation Senior Software Engineer Interview Questions and Answers

Launch modes in Android determine how a new instance of an activity is associated with the current task.

• Standard - creates a new instance of an activity in the task

• SingleTop - if the activity is at the top of the stack, it will not be recreated

• SingleTask - creates a new task and puts the activity at the root of the task

• SingleInstance - similar to SingleTask, but the activity is the only one in the task

Arbitration in CAN is a process of resolving conflicts when multiple nodes try to transmit data simultaneously.

• Arbitration is used in Controller Area Network (CAN) to ensure that only one node transmits data at a time.

• Each node on the CAN bus has a unique identifier, and the node with the highest priority identifier gets to transmit its data first.

• If two or more nodes try to transmit data at the same time, the arbitrat...read more