第1题:
Operator: ______, May I help you?
Bill: I'd like to set up a telephone service, please.
A、Speaking
B、Hey
C、I'm John Smith
D、Pacific Bell
第2题:
【A popular service that has attercted the interest of companies and has home users alike is the sending of voice signals over an IP-based network, such as the Internet. The practice of making telephone calls over the internet has had a number of different names, including packet voice, voice over packet, voice over the internet, internet telephone, and Voice over Ip(Voip). But it appears the industry has settled on the term”Voice ove IP” in reference to the internet protocol, which controls the transfer of data over the internet. There are currently three ways to deliver VoIp to users, the first technique is found at the corporate level. Many companies are offering VoIP systerms that operate over a local area network. These systems involve a fair amount of equipment, such as VoIP servers, special IP-enabled telephones, and routers that can direct telephone calls. Today a large portion of corporate sites have converted their older internal telephone systems to VoIP systems that opreate over a LAN, thus converging two systems into one. A second common solution is the one often encountered at home. Using existing telephones, a special converter is added between the telephone and a high speed internet(DSL or cable modem)connection. The converter digitizes the voice signal and creates a stream of packets that are then sent over an ip connection.The third technique involves smart cell phones. Never cell technologies are all packet-based, thus requiring a telephone call to be converted to digital packets and sending those packets over IP networks.】
From the paragraph above,a popular service that has attracetd the interest of companies and home users,is termed as () . The data transfer over the Internet is controlled by the () . At corporate level, many companies have replaced their older internal telephone systerms with () that oprerate over a local area network.
A、voice over the internet B、voice over packet C、Voice over IP D、internet telephony A、packet B、internet protocol C、industry D、VoIp servers A、VoIP systems B、IP-enablde telephones C、VoIP servers D、routers
第3题:
第4题:
Which three components of the Cisco SMB Assistant Service?()
第5题:
请问您的电话号码?用英语最妥当的表述是()。
第6题:
查找yuangong表中所有电话号码(列名:telephone)的第一位为8或6,第三位为0的电话号码()
第7题:
Which three are components of the Cisco SMARTnet service? ()
第8题:
X.25.
Asynchronous transfer mode (ATM).
VoIP.
Public Switched Telephone Network (PSTN).
第9题:
NBD callback from specialized engineers during regular business hours
support for every Cisco product
support for low-end products only
cases opened via e-mail or telephone at any time
advanced replacement on the next business day
immediate support from the Cisco TAC engineers
第10题:
第11题:
Because the rates it offered were not competitive enough.
Because customers were dissatisfied with its past service.
Because the service offered by its competitors was far better.
Because it no longer received any support from the government.
第12题:
MSA
vessel owner or owner's agent
Occupational Safety and Health Administration
National Fisheries Service
第13题:
A. OTDR
B. Media converter
C. CSU/DSU
D. Fiber repeater
第14题:
Every injury aboard a commercial vessel must be reported to the ______.
A.MSA
B.vessel owner or owner's agent
C.Occupational Safety and Health Administration
D.National Fisheries Service
第15题:
第16题:
When installing a security system, which of the following connectors would be used to connect the security system to the telephone service demarcation?()
第17题:
“电话新装”在英文中的写法是“()”。
第18题:
Which three statements correctly describe the Cisco Validated Designs program? ()(Choose three.)
第19题:
New service from the telephone company is delivered over fiber, but the technician does not have a fiber module for the router. Which of the following would remedy this issue?()
第20题:
might have been caused by terrorist attacks.
affected more than 120 million people.
stranded travelers at airports and train stations.
hampered cash machines but not cellular telephone service.
第21题:
She should repair the telephone herself.
She can turn to Mike for help.
He knows nothing about telephone.
He will call the telephone company.
第22题:
includes three design levels
incorporates products and technologies into enterprise, service provider, and commercial systems
extends the value of designs through a sustained development plan
does not factor customer input design process
facilitates faster and more reliable customer deployments
incorporates a narrow range of technologies and products
第23题:
Speech
Signaling tones
A busy signal
All of the above