1. Which of the following would be valid source and destination ports for a host connecting to an email server?
- Source: 25, Destination: 49152
- Source: 80, Destination: 49152
- Source: 49152, Destination: 25
- Source: 49152, Destination: 80
2. Which control bit flags are used during the three-way handshake?
- ACK and FIN
- FIN and RESET
- RESET and SYN
- SYN and ACK
3. How many exchanges are needed to end both sessions between two hosts?
- one exchange
- two exchanges
- three exchanges
- four exchanges
- five exchanges