ALTEN-CRESTTEK Interview Questions, Process, and Tips for Experienced

Scheduling in FreeRTOS refers to the process of assigning tasks to be executed by the processor.

• FreeRTOS uses a priority-based preemptive scheduling algorithm.

• Tasks are assigned priorities and the scheduler selects the highest priority task to execute.

• Tasks can be blocked or suspended to allow other tasks to run.

• FreeRTOS also supports time-slicing to ensure fair execution of tasks.

• Scheduling can be customized using con

Context switching is the process of storing and restoring the state of a process or thread so that execution can be resumed from the same point later.

• Context switching occurs when the operating system switches from running one process or thread to another.

• It involves saving the current state of the process or thread, including its program counter, registers, and stack pointer.

• The operating system then loads the state o...read more

Latency is the time delay between a request and its response.

• Latency is measured in milliseconds (ms).

• It can be affected by network congestion, server load, and distance.

• High latency can cause slow response times and poor user experience.

• Examples of latency-sensitive applications include online gaming and video conferencing.

RTOS is a real-time operating system designed for time-critical applications, while GPOS is a general-purpose operating system.

• RTOS is designed for deterministic response time, while GPOS is not.

• RTOS is typically used in embedded systems, while GPOS is used in desktops and servers.

• RTOS has a smaller footprint and lower overhead than GPOS.

• Examples of RTOS include FreeRTOS, VxWorks, and uC/OS, while examples of GPOS incl