Embedded Systems and Automation

Which of the following is a common feature of embedded systems?

• High Power Consumption

• Large size

• Dedicated Function

• General-purpose computing

Answer explanation

Embedded systems typically have a dedicated function, unlike general-purpose computing devices. This specialization allows them to perform specific tasks efficiently.

What is the primary role of a real-time operating system (RTOS) in an embedded system?

• To manage Hardware resources

• To ensure timely processing of tasks

• To provide high-level language support

• To interface with external storage devices

Answer explanation

To ensure timely processing of tasks

Which communication protocol is widely used in automotive embedded system?

• Wi-Fi

• Bluetooth

• CAN(Controller Area Network)

• Zigbee

Answer explanation

CAN(Controller Area Network) is widely used in automotive embedded systems for communication due to its reliability, real-time capabilities, and robustness in noisy environments.

What is the purpose of a watchdog timer in an embedded system?

• To monitor power supply

• To reset the system in case of a malfunction

• To manage memory usage

• To provide a clock signal

Answer explanation

The purpose of a watchdog timer in an embedded system is to reset the system in case of a malfunction, ensuring system reliability and stability.

Which type of memory is typically used to store firmware in an embedded system?

• RAM

• ROM

• EEPROM

• Cache

Answer explanation

ROM is typically used to store firmware in an embedded system because it is non-volatile and retains data even when power is turned off.

In the context of IoT, what does MQTT stand for?

• Message Queue Telemetry Transport

• Multi Queue Telemetry Transport

• Message Query Telemetry Transport

• Multi Query Telemetry Transport

Answer explanation

In the context of IoT, MQTT stands for Message Queue Telemetry Transport, making it the correct choice among the options provided.

Which layer of the OSI model does the HTTP protocol belong to?

• Application Layer

• Transport Layer

• Network Layer

• Data link Layer

Answer explanation

The HTTP protocol belongs to the Application Layer of the OSI model.

What is the main purpose of a gateway in an IoT system?

• To collect and analyze data

• To convert protocols and data formats

• To store large amounts of data

• To provide user interfaces

Answer explanation

The main purpose of a gateway in an IoT system is to convert protocols and data formats, allowing different devices to communicate effectively by translating the data into a common language.

Which of the following is a popular platform for IoT development?

• Android

• Windows

• Arduino

• Linux

Answer explanation

Arduino is a popular platform for IoT development, making it the correct choice out of the options provided.

What is edge computing in the context of IoT?

• Performing data processing at centralized data centers

• Performing data processing at the edge of the network, near the data source

• Transmitting all data to the cloud for processing

• Storing data at remote locations

Answer explanation

Edge computing in the context of IoT involves performing data processing at the edge of the network, near the data source.