Answer:
A PC such as a notebook computer.The evil twin gets the encrypted frame from the affected host,A VPN encrypts a frame with its own VPN key.
Explanation:
The evil twin after initial association when the victim client will establish a secure wireless connection with the victim client. The connection uses a key client-EF for encryption such that when the host transmits an encrypted frame it is transmitted to the evil twin. A VPN is an encrypted virtual private network used to access networks that are not trusted. The client encrypts a frame with a VPN key (Key Client-Server) which it shares with the server. The frame is further encrypted by the key it shares with the evil twin (Victim Client-ET) The evil twin will then receive a double encrypted frame. However, it will only be able to decrypt the Victim Client-ET key but not the VPN key hence it will not be able to read the message sent through the frame.
Answer: Wider channel bandwidth has several downside or disadvantages to it. Some of these are as follow:
a) Higher channel bandwidth means lower will be the number of channels being utilized.
b) Wider bandwidth may lead to an increase in the speed but on the other hand, it'll lead to several interference problems.
Answer:
I believe the answer is B.
Answer:
Check the explanation
Explanation:
Almost all smartphone devices have global positioning satellite (GPS) service capabilities in them, which mean that apps will be able to combine the phone user's location with the available retail outlets and services to build better mobile business opportunities. For instance, some applications can navigate the user to a particular business locations (such as movie theaters, restaurants, or a nearby auto repair facilities) based on the user's present location.
App like twitter can use the GPS capability to tailor yhier user feeds and timelines with digital contents that are intresting to users in that location.
amazon can advertise based on the need of consumers in a particular location.
Google also tailor thier adword and adsense advert based on the location of the user.
