Other Network Service Ports and Protocols (obj 1.4)

Question 1

Network Time Protocol (NTP)

Answer 1

Used to synchronize the clocks of a computer over a given network. (port 123)

Question 2

Session Initiation Protocol (SIP)

Answer 2

Used for initiating, maintaining, and terminating real-time sessions that invovle voice, video, messaging, and other communication services. (port 5060 & 5061)

Question 3

Lightweight Directory Accesss Protocol (LDAP)

Answer 3

Protocol for accessing and maintaining distributed directory information services over an IP network. (port 389)

Question 4

LDAP over SSL ((LDAPS)

Answer 4

Version of LDAP that is encrypted with SSL or, in newer versions, TLS for increased security. (port 636)

Question 5

Internet Group Management Protocol (IGMP)

Answer 5

Layer 3 protocol that allows hosts to join and leave groups configured to receive multicast communciations