Technology MCQs

✅ The correct answer is option B.
Spontaneous emission is what you see with most “glow in the dark” toys. You excite the toy by exposing it to bright light, then the toy glows in the dark by spontaneously emitting photons as the excited atoms relax back down to their normal state.

✅ The correct answer is option D.

✅ The correct answer is option C.
SPICE (Simulation Program with Integrated Circuit Emphasis) was introduced in May 1972 by the University of Berkeley, California.

✅ The correct answer is option D.
In 1904, John Ambrose Fleming invented the first practical electron tube called the ‘Fleming Valve’, which is a diode rectifier. In 1906, Lee de Forest invented the audion later called the triode, which provided signal amplification.

✅ The correct answer is option B.

✅ The correct answer is option B.

✅ The correct answer is option D.

✅ The correct answer is option D.
ICMP Packets are used to send control messages including errors.

✅ The correct answer is option A.

✅ The correct answer is option B.
The three most commonly used Boolean operators are: AND, OR, and NOT. On the Web, Boolean operators are used in advanced searches to combine search items. For example, an “AND” operator between two words (“football AND television”) tells the search engine to find documents that contain both of these words.