COMPUTER THREATS SECURITY
WHAT IS A FIREWALL IN NETWORK SECURITY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
encryption
|
|
|
proxies
|
|
|
website/URL content filtering
|
|
|
web threat filtering
|
Detailed explanation-1: -4. In which of the following encryption key is used to encrypt and decrypt the data? Explanation: In public-key (also known as asymmetric-key) encryption techniques, there are two different keys, the public key and the private key, used to encrypt and decrypt the data.
Detailed explanation-2: -In asymmetric, or public key, encryption, there are two keys: one key is used for encryption, and a different key is used for decryption.
Detailed explanation-3: -Encryption makes data unintelligible, so secures it by design with the only way to unscramble it being a decryption key. Encryption is necessary to prevent the unauthorised processing of information, should that information be involved in a data breach scenario.
Detailed explanation-4: -The two keys are called the “public key” and the “private key” of the user. The network also has a public key and a private key. The sender uses a public key to encrypt the message. The recipient uses its private key to decrypt the message.