Joe has a small office and is looking to replace his phone system with a lower cost solution that requires minimal in-house support. Which of the following is the BEST choice?

Wide Area Network
NAT
Virtual PBX
Virtual LAN

Answer(s): C

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QUESTION: 14

Which of the following protocols is commonly used for VoIP technology?

Telnet
SMTP
SIP
SNMP

Answer(s): C

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QUESTION: 15

If a NIC does not have a link light, there is a failure at which of the following OSI layers?

Physical
Session
Data link
Presentation

Answer(s): A

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QUESTION: 16

Which of the following protocols would Kurt, a technician, use to synchronize local date and time of a client workstation to that of a server?

RTP
NTP
TFTP
ARP

Answer(s): B

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