Question 58 Which of the following address can NOT be used in SIP? sip:levent@51
ID: 3912462 • Letter: Q
Question
Question 58
Which of the following address can NOT be used in SIP?
sip:levent@510-864-3427
sip:levent@csueastbay.edu
sip:levent@25800 Carlos Bee Blvd
sip:levent@134.154.232.234
Question 59
Which of the following WAN technology uses variable length packets called frame
Ethernet
ATM
Frame Relay
ISDN
Question 60
Which of the following device, in VoIP, records audio such as voice mail massages.
signalling gateways
soft switches
media gateways
media servers
61.A line has a signal-to noise ratio of 1000 and a bandwidth of 4000 KHz. What is the maximum data rate supported by this line?
40 Kbps
60 Kbps
20 Kbps
80 KBps
sip:levent@510-864-3427
sip:levent@csueastbay.edu
sip:levent@25800 Carlos Bee Blvd
sip:levent@134.154.232.234
Question 59
Which of the following WAN technology uses variable length packets called frame
Ethernet
ATM
Frame Relay
ISDN
Question 60
Which of the following device, in VoIP, records audio such as voice mail massages.
signalling gateways
soft switches
media gateways
media servers
61.A line has a signal-to noise ratio of 1000 and a bandwidth of 4000 KHz. What is the maximum data rate supported by this line?
40 Kbps
60 Kbps
20 Kbps
80 KBps
Explanation / Answer
Question 58
Which of the following address can NOT be used in SIP?
Ans) sip:levent@25800 Carlos Bee Blvd
Explanation:
1. Above mentiones one is the correct answer because it can Not be used in sip and
2. An SIP address is nohing but it is a like an email address and in that it serves as a locater of the user and
3. SIP addresses looks very similar to email addresses and they are comprised of two parts they are username and a domain name and also a telephone system calls. and the remaining options are wrong.
Question 59
Which of the following WAN technology uses variable length packets called frame
Ans) Frame Relay is the correct answer
Explanation:
Frame Relay is the WAN technology that uses variable length packets called frame adn the remaining options that are provided are wrong because ATM uses fixed length and ISDN and Ethernet also uses fixed length
Question 60
Which of the following device, in VoIP, records audio such as voice mail massages.
Ans) media gateways is the correct answer
Explanation:
media gateways is the device, in VoIP that records audio such as voice mail massages.
61. A line has a signal-to noise ratio of 1000 and a bandwidth of 4000 KHz. What is the maximum data rate supported by this line?
Ans) 40 Kbps is the correct answer
Explanation:
1. here we are using the Shannon capacity that is C = B log2 (1 + SNR)
2. so C = 4,000 log2 (1 + 1,000) = 40 Kbps
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