किस लॉजिक गेट की सत्यता सारणी (truth table) उस स्थिति को संतुष्ट करती है जहां आउटपुट केवल तब हाई (1) होता है जब इसके दोनों इनपुट अलग-अलग होते हैं?

Which logic gate is represented by the symbol that has two inputs and one output, with a curved input side, a pointed output side, and an additional curved line parallel to the input side?

Which of the following Boolean expressions represents the behaviour of a 3-input AND gate?