Preview Questions Software Engineer (Embedded) | Role Specific Skill

Question 1: When using UART for serial communication, what is the purpose of flow control?

Which action should you take?

Choose only one option

To determine the parity bit configuration for error detection

To increase the transmission speed of data over long distances

To synchronize the baud rate between the transmitter and receiver

To prevent data loss by managing the flow of data between sender and receiver

Question 2: When implementing Ethernet communication in embedded systems, what is the function of the MAC address?

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It encrypts data to ensure secure transmission

It assigns IP addresses to devices in the network

It manages error correction during data transmission

It uniquely identifies devices on a local network for communication

Question 3: What is the primary difference between "polling" and "interrupt-driven" communication in embedded systems?

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Interrupts consume more power, whereas polling consumes less

Polling waits for a specific signal, while interrupts handle multiple events

Polling is more energy efficient, while interrupts offer better performance

Polling requires more CPU time, while interrupts provide better response times

Question 4: In an embedded system, what is the primary purpose of real-time scheduling?

Which action should you take?

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To reduce the power consumption of the system

To ensure timely execution of critical tasks

To improve the user interface response

To minimize memory usage

Question 5: In embedded systems, what is the role of the watchdog timer?

Which action should you take?

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To measure system performance in real-time

To track system temperature and reset when it exceeds limits

To monitor and reset the system in case of software failure

To count the number of times a task is executed

Question 6: What is a hardware abstraction layer (HAL), and how does it facilitate hardware-software integration?

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It manages power optimization for the embedded system

It ensures that software is portable across different hardware platforms

It provides a standard interface for hardware access

It monitors system performance in real-time