Code Module 3 Quiz | OceanRemote Education

1 What library is used for WiFi on ESP32?

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

2 What does HTTPClient.h do?

A) Connects to WiFi B) Sends HTTP requests C) Reads sensors D) Controls LEDs

3 What is the deep sleep current?

A) 100mA B) 10mA C) 2.5μA D) 1A

4 What function puts ESP32 into deep sleep?

A) delay() B) sleep() C) ESP.deepSleep() D) esp_deep_sleep_start()

5 What is RTC_DATA_ATTR used for?

A) Preserve variables during deep sleep B) Delete variables C) Speed up code D) Enable WiFi

6 What WiFi status indicates connected?

A) WL_IDLE_STATUS B) WL_CONNECTING C) WL_CONNECTED D) WL_DISCONNECTED

7 What content type for POST data?

A) text/html B) application/x-www-form-urlencoded C) application/json D) text/plain