| 1 |
------------ consists of a signle copper wire surrounded by at least three layers. |
- A. Fiber optic cable
- B. Coaxial cable
- C. Twisted pair cable
- D. None of these
|
| 2 |
Physical media is also called.......... or........ |
- A. Guided media
- B. Bounded media
- C. Both of above
- D. None of these
|
| 3 |
Which of the following is not the component of data communication system. |
- A. Message
- B. Sender
- C. Protocol
- D. Transmission Media
|
| 4 |
A computer or device that sends a message is called. |
- A. Receiver
- B. Sender
- C. Encoders
- D. Transmission media
|
| 5 |
------- is the unit of frequency. |
- A. Meter
- B. Hertz
- C. Joule
- D. None of these
|
| 6 |
A ............. network is an internet connection that is shared with multiple devices in a home or business via a wireless router. |
- A. LiFi
- B. WiFi
- C. GPS
- D. Router
|
| 7 |
-------- are electromagnicte waves that have frequencies between \1 and 300 GHz. |
- A. Radio waves
- B. Micro waves
- C. Infrared waves
- D. All of these
|
| 8 |
Number of waves passing through an area per unit time is called. |
- A. VPN
- B. Router
- C. Bridge
- D. Frequency
|
| 9 |
Li-Fi is a wirless optical networking technology that uses....... for data transmission |
- A. Fiber optic cable
- B. Coaxial cable
- C. LEDs
- D. None of these
|
| 10 |
A ---------- is the data to be sent. |
- A. Sender
- B. Message
- C. Receiver
- D. None of these
|