WiFi and IoT Quiz | OceanRemote Education

1 What library is needed for WiFi on ESP32?

A) WiFi.h B) ESP8266WiFi.h C) Ethernet.h D) Network.h

2 What is the deep sleep current consumption?

A) 100mA B) 10mA C) 2.5μA D) 1mA

3 How do you wake ESP32 from deep sleep?

A) WiFi signal only B) Timer or external pin trigger C) Bluetooth only D) Manual reset only

4 What function puts ESP32 into deep sleep?

A) delay() B) sleep() C) powerOff() D) esp_deep_sleep_start()

5 What does RTC_DATA_ATTR do?

A) Preserves variable value during deep sleep B) Deletes variable C) Increases speed D) Disables variable

6 What is the maximum deep sleep time?

A) 1 minute B) 10 minutes C) No theoretical maximum D) 1 hour

7 Which WiFi frequency does ESP32 use?

A) 5GHz only B) 2.4GHz only C) Both 2.4 and 5GHz D) 6GHz