Unit 1 Assignment 1. What´s Rf Technology?
1. What is rf technology?
A. The technology in which the parameters such as amplitude, phase and frequency of radio frequency waves are changed so as to transmit and receive the information is known as RF technology or radio frequency technology. In this, the electromagnetic waves that lie in the range of 3 khz to 300 Ghz are used for the wireless communication between the two devices. The signal is modulated at the transmitter end and then the antenna converts this electrical signal into the radio waves and emits them. The medium in which they travel is space. The receiving antenna catches the waves at the receiving end and then the signal is demodulated and converted back to its original form. These waves are highly affected by the interference …show more content…
Security issues can be categorized into three categories:
Passive Monitoring – As the radio signal penetrate into buildings, they travel a long distance before reaching to the destination. So, by using a radio card with a computer anyone can hack the confidential information of a business. The solution to this problem is encryption. The messages are changed according to the encryption key, so it becomes difficult for the hacker to understand the message or passwords or emails.
Unauthorized Access- When a person starts using a network without permission is known as unauthorized access. Some company’s devices are password protected but not every. So, one can access those networks that are not password protected and can gain the information sensitive to that particular organisation.
For example – man in the middle attack – during an arp request, some fake host can send its mac address to the host demanding for it and then that host will save this mac address for sending further messages. This way the messages would be sent to the unauthorized person with which the data regarding company’s passwords and all will be
A. The technology in which the parameters such as amplitude, phase and frequency of radio frequency waves are changed so as to transmit and receive the information is known as RF technology or radio frequency technology. In this, the electromagnetic waves that lie in the range of 3 khz to 300 Ghz are used for the wireless communication between the two devices. The signal is modulated at the transmitter end and then the antenna converts this electrical signal into the radio waves and emits them. The medium in which they travel is space. The receiving antenna catches the waves at the receiving end and then the signal is demodulated and converted back to its original form. These waves are highly affected by the interference …show more content…
Security issues can be categorized into three categories:
Passive Monitoring – As the radio signal penetrate into buildings, they travel a long distance before reaching to the destination. So, by using a radio card with a computer anyone can hack the confidential information of a business. The solution to this problem is encryption. The messages are changed according to the encryption key, so it becomes difficult for the hacker to understand the message or passwords or emails.
Unauthorized Access- When a person starts using a network without permission is known as unauthorized access. Some company’s devices are password protected but not every. So, one can access those networks that are not password protected and can gain the information sensitive to that particular organisation.
For example – man in the middle attack – during an arp request, some fake host can send its mac address to the host demanding for it and then that host will save this mac address for sending further messages. This way the messages would be sent to the unauthorized person with which the data regarding company’s passwords and all will be