A network technician is reviewing the company phone system to make the necessary changes to a firewall configuration.
Which of the following protocols are used in VoIP communication? (Choose two.)
A.
SIP B.
NTP C.
H.323 D.
SNMP E.
IMAP F.
SMB G.
CSMA.
AC.
A network technician is reviewing the company phone system to make the necessary changes to a firewall configuration.
Which of the following protocols are used in VoIP communication? (Choose two.)
A.
SIP
B.
NTP
C.
H.323
D.
SNMP
E.
IMAP
F.
SMB
G.
CSMA.
AC.
The two protocols used in VoIP (Voice over Internet Protocol) communication are:
A. SIP (Session Initiation Protocol): It is a signaling protocol used to establish, modify and terminate voice and video sessions over IP networks. SIP is responsible for initiating and maintaining a communication session between two or more participants. It also manages call features such as call transfer, call hold, and call conferencing.
C. H.323: It is a protocol suite used for multimedia communication over IP networks. H.323 is a set of ITU (International Telecommunication Union) standards that cover multimedia communication, including voice, video, and data. H.323 is an older protocol compared to SIP and is mainly used in video conferencing systems.
B. NTP (Network Time Protocol): It is used for time synchronization in a network. NTP is used to synchronize the time of devices on a network to a common reference time source. While it is an important protocol, it is not used in VoIP communication.
D. SNMP (Simple Network Management Protocol): It is used to manage and monitor network devices. SNMP is used to collect information about network devices such as routers, switches, and servers. It is not used in VoIP communication.
E. IMAP (Internet Message Access Protocol): It is used to retrieve email messages from a mail server. IMAP is used by email clients to access email messages stored on a mail server. It is not used in VoIP communication.
F. SMB (Server Message Block): It is a protocol used to share files, printers, and other resources between computers on a network. SMB is used to access shared resources such as files and printers on a network. It is not used in VoIP communication.
G. CSMA (Carrier Sense Multiple Access): It is a protocol used to share a transmission medium between multiple devices. CSMA is used to control access to a shared transmission medium such as a network cable. It is not used in VoIP communication.