Networking/Protocols

Question 1

TCP connectionless or connection oriented?

Answer 1

connection oriented

Question 2

Can TCP re-order transmissions?

Answer 2

Yes

Question 3

Which is used for “real time” communication? TCP or UDP?

Answer 3

UDP

Question 4

Does http/https use tcp or udp?

Answer 4

TCP

Question 5

Does SSH use tcp or udp

Answer 5

TCP

Question 6

What are the port numbers for TCP?

Answer 6

tcp/20-active mode data
tcp/21-control

Question 7

Does TCP authenticate with username and pw?

Answer 7

Yes

Question 8

What port is SSH

Answer 8

tcp/22

Question 9

What looks and acts the same as telnet, but is much more secure?

Answer 9

SSH

Question 10

What port is telnet?

Answer 10

tcp/23

Question 11

What port is SMTP?

Answer 11

tcp/25

Question 12

What are the two uses of the SMTP protocol?

Answer 12

Server to server email exchange and client to server sending

Question 13

What port is DNS?

Answer 13

udp/53

Question 14

What port is DHCP

Answer 14

udp/67
udp/68

Question 15

What port is POP3?

Answer 15

tcp/110

Question 16

What port is IMAP4?

Answer 16

tcp/143

Question 17

What ports are SMB?

Answer 17

NetBIOS - udp/137 (Name) and tcp/139 (session)
Direct or NetBIOS-less- tcp/445

Question 18

What does SMB stand for?

Answer 18

Server message block

Question 19

What is SMB used for

Answer 19

file shares, printer shares

Question 20

What is SNMP used for?

Answer 20

Gathering stats from networked devices

Question 21

What ports are used for SNMP?

Answer 21

queries- udp/161
traps- udp/162

Question 22

What port is used by LDAP?

Answer 22

tcp/389

Question 23

What port is used by RDP?

Answer 23

tcp/3389