L3 -Network Security Quiz

What is the purpose of authentication in network security?

• To monitor incoming and outgoing network traffic

• To check if the user is allowed to access content

• To filter MAC addresses

• To encrypt data

What is the process of converting plaintext into ciphertext known as?

• Decryption

• MAC address filtering

• Key generation

• Encryption

Which encryption technique uses a single key to encrypt and decrypt a message?

• Public key encryption

• Symmetric encryption

• Asymmetric encryption

• Caesar shift cipher

What is the most basic type of encryption and the most insecure?

• Public key encryption

• Symmetric encryption

• Caesar shift cipher

• Asymmetric encryption

What is the purpose of a firewall in network security?

• To decipher the code

• To filter MAC addresses

• To separate a trusted network from an untrusted network

• To encrypt data

What is a unique hex number assigned to all Network Interface Cards?

• IP address

• Media Access Control (MAC) address

• Firewall key

• Ciphertext

Which wireless encryption standard is older and can be cracked in seconds?

• WEP

• WPA2

• HTTPS

• WPA

What does strong encryption mean?

• The code may be broken in time to use the information

• The useful lifetime of the encrypted data is less than the time taken to break the code

• The code wouldn't be worth the effort trying to break it

• The code cannot be broken

What does a firewall do when configured correctly?

• Allows all incoming and outgoing network traffic

• Blocks all incoming and outgoing network traffic

• Prevents many possible ways that an attacker can gain access to computers on a network

• Filters all MAC addresses

What is the purpose of MAC address filtering in network security?

• To encrypt data

• To block access to specified devices identified by their MAC addresses

• To separate a trusted network from an untrusted network

• To decipher the code