1.1 - Ports and Protocols

Question 1

What is SSH?

Answer 1

Secure Shell

Question 2

What Port # is SSH?

Answer 2

TCP 22

Question 3

What does SSH do?

Answer 3

It is a public key cryptograph (encryption)

Question 4

What is DNS?

Answer 4

Domain Name System

Question 5

What Port # is DNS?

Answer 5

TCP/UDP 53

Question 6

What does DNS do?

Answer 6

Address translation

Question 7

What is SMTP?

Answer 7

Simple Main Transfer Protocol

Question 8

What Port # is SMTP?

Answer 8

TCP/UDP 25

Question 9

What does SMTP do?

Answer 9

Sending e-mails

Question 10

What is SFTP?

Answer 10

Secure File Transfer Protocol

Question 11

What Port # is SFTP?

Answer 11

TCP 22

Question 12

What is FTP?

Answer 12

File Transfer Protocol

Question 13

What Port # is FTP?

Answer 13

TCP 20,21

Question 14

What is TFTP?

Answer 14

Trivial File Transfer Protocol

Question 15

What Port # is TFTP?

Answer 15

UDP 69

Question 16

What does TFTP do?

Answer 16

Lighter, faster, less secure FTP

Question 17

What is TELNET?

Answer 17

Command line interface for communication with a remote device or server

Question 18

What Port # is TELNET?

Answer 18

TCP 23

Question 19

What is DHCP?

Answer 19

Dynamic Host Configuration Protocol

Question 20

What Port # is DHCP?

Answer 20

UDP 67 (destination)
UDP 68 (client)

Question 21

What does DHCP do?

Answer 21

Client configuration of a TCP/IP network

Question 22

What is HTTP?

Answer 22

Hypertext Transfer Protocol

Question 23

What Port # is HTTP?

Answer 23

TCP 80

Question 24

What does HTTP do?

Answer 24

Client server method where client uses Uniform Resource Locator (URL)

Question 25

What is HTTPS?

Answer 25

Hypertext Transfer Protocol Secured

Question 26

What Port # is HTTPS?

Answer 26

TCP 443

Question 27

What does HTTPS do?

Answer 27

Utilize SSL (Secure Socket Layer) or TLS (Transport Layer Security) to encrypt HTTP

Question 28

What is SNMP?

Answer 28

Simple Network Management Protocol

Question 29

What Port # is SNMP?

Answer 29

UDP 161

Question 30

What does SNMP do?

Answer 30

Monitor and configure network nodes such as printers, hosts, routers, and servers

Question 31

What is RDP?

Answer 31

Remote Desktop Protocol

Question 32

What Port # is RDP?

Answer 32

TCP/UDP 3389

Question 33

What does RDP do?

Answer 33

Allows a client to control another client

Question 34

What is NTP?

Answer 34

Network Time Protocol

Question 35

What Port # is NTP?

Answer 35

UDP 123

Question 36

What does NTP do?

Answer 36

Simply put; tells the internet what time it is

Question 37

What is SIP?

Answer 37

Session Initiated Protocol

Question 38

What Port # is SIP?

Answer 38

TCP/UDP 5060, 5061

Question 39

What does SIP do?

Answer 39

VoIP and Multimedia

Question 40

What is SMB?

Answer 40

Server Message Block

Question 41

What Port # is SMB?

Answer 41

TCP/UDP 445

Question 42

What is POP?

Answer 42

Post Office Protocol

Question 43

What Port # is POP?

Answer 43

TCP 110

Question 44

What does POP do?

Answer 44

Receiving e-mails (POP3)

Question 45

What is IMAP?

Answer 45

Internet Message Access Protocol

Question 46

What Port # is IMAP?

Answer 46

TCP 143

Question 47

What does IMAP do?

Answer 47

E-mail receiving

Question 48

What is LDAP?

Answer 48

Lightweight Directory Access Protocol

Question 49

What Port # is LDAP?

Answer 49

TCP/UDP 389

Question 50

What does LDAP do?

Answer 50

Phonebook for network services

Question 51

What is LDAPS?

Answer 51

Lightweight Directory Access Protocol Secured

Question 52

What Port # is LDAPS?

Answer 52

TCP/UDP 636

Question 53

What Port # is H.323?

Answer 53

TCP 1720

Question 54

What does H.323 do?

Answer 54

Point-to-point and multi-point VoIP, video conferencing

Question 55

What is ICMP?

Answer 55

Internet Control Message Protocol

Question 56

What does ICMP do?

Answer 56

On the Network Layer of OSI, reports success or failure of packet delivery

Question 57

What is UDP?

Answer 57

User Datagram Protocol

Question 58

What does UDP do?

Answer 58

Unreliable, connectionless delivery

Question 59

What is TCP?

Answer 59

Transmission Control Protocol

Question 60

What does TCP do?

Answer 60

Addresses reliability issue of IP

Question 61

What is IP?

Answer 61

Internet Protocol

Question 62

What does IP do?

Answer 62

Assigns source and destination to packets