Servers is the correct answer
Technologies that can operate in the 125 kHz to 134 kHz range is the
B. RFID
Explanation:
- RFID is technology which works on radio frequency and it is used for the auto-identification for the different object.
- The RFID system mainly consists of two parts. In this RFID system, this RFID reader continuously sends radio waves of a particular frequency
- RFID is the use of radio waves to read and capture information stored on a tag attached to an object, providing a unique identifier for an object.
- Active RFID tags have a transmitter and their own power source. Instead, they draw power from the reader, which sends out electromagnetic waves that induce a current in the tag's antenna.
- Semi-passive tags use a battery to run the chip's circuitry, but communicate by drawing power from the reader.
- Radio frequency identification (RFID) can operate in three frequency bands: 125 kHz to 134 kHz, 13.56 MHz, or 856 MHz to 960 MHz. Bluetooth is 2.4 GHz; NFC is 13.56 MHz; and LTE is between 600 MHz and 6 GHz.
Answer:
D
Explanation:
All three of A, B and C are required to harden a host. Thus, All of the above makes the best option.
Hardening simply refers to making your data impossible to be penetrated. More like bulletproof.
To do this, ensure measures like
- Regular Program cleanup
- Patches management
- service pack installation
- service or usage policies
...among others.
Cheers
