TCPIP Flashcards
1
Q
Does NFS use TCP or UDP for file transfers?
A
UDP. Reliability is handled by an application layer protocol.
2
Q
What are the protocol and ports for: FTP data and FTP control? SSH? Telnet? SMTP? DNS? DHCP Server? TFTP? HTTP and HTTPS? POP3? SNMP? SSL? Syslog?
A
FTP data and FTP control? -TCP, 20, 21 SSH? -TCP 22 Telnet? -TCP 23 SMTP? -TCP 25 DNS? - UDP and TCP 53 DHCP Server and Client? -UDP 67, 68 TFTP? -UDP 69 HTTP and HTTPS? -TCP 80, 443 POP3? -TCP 110 SNMP? -UDP 161 SSL? -TCP 443 Syslog? -UDP 514
3
Q
In a TCP session termination what are the steps in the handshake?
A
4-way handshake.
–> ACK, FIN
ACK
4
Q
In a TCP connection establishment what are the steps?
A
–> SYN
ACK
5
Q
What does SYN stand for?
A
synchronize the sequence numbers
