It uses a 3-way handshake
1. SYN from client to server.
2. SYN-ACK from server to client.
3. ACK from client to the server.
At this point, both client and server have received an acknowledgement of the connection.
Answer: A top level class without any modifier is accessible to any class within the same package.
Explanation: A top level class is class whose declaration occur in the body of their own class therefore it is not a nested class.It cannot be declared in any other class.Private modifier is not allowed in the top level class because there would be no access in the class. Therefore top level class which does not have any modifier can be accessed by any class within the same package .
One way could be to check the code of the program.
But of course this might not be possible... Not everyone knows a programming language. And even if you did, you might not know the programming language they used.
Another way is to download a program that monitors your incoming connections and outgoing connections from your computer/android/iphone.
When someone or something connects to your device, the program should alert you. Or when the computer makes a connection to a website/device.
Answer:
You should disable WPS in the access point's configuration.
Explanation:
Encryption is a form of cryptography and typically involves the process of converting or encoding informations in plaintext into a code, known as a ciphertext. Once, an information or data has been encrypted it can only be accessed and deciphered by an authorized user.
Some examples of encryption algorithms are 3DES, AES, RC4, RC5, and RSA.
In wireless access points, the encryption technologies used for preventing unauthorized access includes WEP, WPA, and WPA2.
In this scenario, you notice that an access point supports Wi-Fi Protected Setup (WPS) using a PIN and you are concerned about the security implications of this functionality. Therefore, to reduce this risk you should disable Wi-Fi Protected Setup (WPS) in the access point's configuration.
This ultimately implies that, the wireless access point will operate in an open state and as such would not require any form of password or PIN for use.
