Question

5. An audio-visual file can have the following as an extension.
(a) .wav
(b) .mpeg4
(c) .jpeg
(d).docx
6. Internet is a type of
(a) LAN
(b) MAN
(C) WAN
(d) None
7. A remote of a car lock uses
technology
(a) Wi-Fi
(b) Bluetooth
(c) Infrared
(d) Wired
8. Hotspot is the term associated with
(a) Bluetooth
(b) Infrared
(c) Wi-Fi
(d) Wired
(d) Social networking​

Answer 1

Answer:

5.(a).wav

6.(c)WAN

7.(c)Infrared

8.(a) Wi-Fi

Explanation:

• Audio Video Interleave, is a file format created by Microsoft for storing video and audio data. Although AV serves a similar purpose, the formats are compatible with different programs. AVI files can be encoded with different video and audio codecs, which must be installed to open the file.
• A wide area network (WAN) is a network that exists over a large-scale geographical area, as compared to other network types, such as a local area network (LAN).
• A WAN connects different smaller networks, including local area networks (LANs) and metro area networks (MANs), so that computers and users in one location can communicate with computers and users in other locations.
• Keyless remotes contain a short-range radio transmitter, and must be within a certain range, usually 5–20 meters, of the car to work. When a button is pushed, it sends a coded signal by radio waves to a receiver unit in the car, which locks or unlocks the door.
• Hotspot: A hotspot is a physical location where people can access the Internet, typically using Wi-Fi, via a wireless local area network (WLAN) with a router connected to an Internet service provider.

Answer 2

Answer:

5) .wav

6) WAN

7) Bluetooth

8) Wi-Fi