1. Give the full name of an application layer protocol that uses TCP as the transport layer protocol. (0-2 points) 2. State two advantages of Network Standards. (0-2 points) 3. State two advantages of using Software As a Service (SaaS), with respect to cloud computing. (0-2 points) 4. The default port number for SMTP is 25, 80, 110, or 143? (0-1 points) 5. Briefly describe two situations where you might use wireless LANs. (0-4 points) 6. Given the IPv4 address 192.168.1.12/28, what is its subnet mask? 255.255.255.255, 255.255.255.0, 255.255.255.240, 255.255.255.192, or 255.255.255.128 (0-1 points) 7. In the context of computer security, explain what is a denial of service attack. (0-4 points) 8. When Tom signs a message using RSA and sends it to Mary, which which key does he use for signing and why? Please explain this encryption process. Toms public key, Marys public key, Toms private key, or Marys private key (0-4 points)

Thank you very much, some choice question that i need explain.