Technology MCQs

✅ The correct answer is option A.
NAT is commonly used by nearly all consumer routers today, both hardware and software.

✅ The correct answer is option B.

✅ The correct answer is option C.
The first message ever sent over what is now called the Internet took place at 10:30PM on October 29, 1969. Back then, the Department of Defense called it ARPAnet (Advanced Research Projects Agency network).

✅ The correct answer is option B.
RF is radio frequency. IF is intermediate frequency used inside the TV for processing. AF is audio frequency. SAP is second audio program which may have another language or other soundtrack as an option to the main soundtrack.

✅ The correct answer is option C.

✅ The correct answer is option B.
VCM was designed by NEC Corp. It is supposed to be faster than normal SDRAM, and it is, but it never caught on.

✅ The correct answer is option D.
The HF band is based on frequencies 3 to 30 Mhz. AM radio stations are in the HF band but normally are stated in kilohertz.

✅ The correct answer is option B.

✅ The correct answer is option B.

✅ The correct answer is option D.
The first laser was a solid state laser. Solid state refers to any solid material like a glass rod. Diode lasers are very common because they are used to read compact disks and digital video disks in computers, CD players, and DVD players. Before diode lasers, the most common type of laser may have been the helium-neon laser, in which the active medium is a combination of the two gasses helium and neon.