【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

题目

【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

相似考题

1.She is () to accept change, though she has been living in the small village for 60 years.A、likeB、likelyC、unlikelyD、alike

2.His sister left home in 1998, and _______since.A. has not been heard of B. has not been heard ofC. had not heard of D. has not heard of

3.() the expansion of international trade, the container service has become popular。A、WithB、LikeC、For

4.By the time you return home, I _____ all the work .A.would doB.will have doneD.has doneD.had done

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第1题：

INTERNATIONAL TRANSPORTATION Transportation plays an important part in international business because goods produced have to be delivered to the buyers abroad, and the delivery of goods is to be made possible by transportayion services. Goods are carried by several means of transportation - on road or rail, by sea or air.And in recent years,combined transportation which is a road-sea-rail carriage has appeared. With the expansion of international trade, the container service has become popular. The use of containers provides a highly effective form. of transportation by road, rail and sea. Basically, about 98% of world trade is carried out by sea transportation.Besides transportation by sea, road, or rail, nowadays in order to speed up delivery, carriage by air has also become popular.
1. Transportation plays an important part in international business because goods produced have to be sent to everywhere in the world.()
2. Usually goods are carried by many ways of transportation.()
3. In recent years, combined transportation which is a road-sea-rail carriage appeared.()
4. With the expansion of international trade, the container service has become popular.()
5. The use of containers gives a very helpful method of transportation by air.()

参考答案：子问题 1:F; 子问题 2:F; 子问题 3:T; 子问题 4:T; 子问题 5:F
第2题：

Of the fllowing sectors in Britain,()has experienced spectacular growth since the end of World War I.

A、agriculture
B、the energy industry
C、the service sector
D、the manufacturing industry

参考答案：C
第3题：

Your IT director has decided to allow employees to use their laptops at home as well as in the office. You have deployed the Junos Pulse client to allow access to the offices 802.1X-enabled wired network. Your company also has the Junos Pulse Secure Access Service deployed. You want the Junos Pulse client to automatically launch the appropriate access method depending on each users location.Which three are supported to determine the users location?（）
A. MAC address
B. DNS server
C. DHCP server
D. resolve address
E. endpoint address

参考答案：B, D, E
第4题：

Wal-Mart has been criticized by some groups for its .（）
[A] low service quality
[B] employees' low salary
[C] high pressure on the other companies
[D] discrimination against women

正确答案：D
第5题：

Which word of the following has a different stress from the others?

A．exit
B．cancel
C．exchange
D．interest

答案：C
解析：
第6题：

In which way is Lenovo different from other Chinese companies？( )

A.It is a veteran of globalization
B.It has many nationalities on its senior management
C.It has succeeded in buying some foreign companies
D.It is now the world’s biggest white-goods maker

答案：B
解析：
第7题：

You define an alert to be raised when the USERS tablespace usage has reached 80% of the total space. Which area would you refer to， in order to confirm that the alert has been raised due the event？（）
- A、the alert.log file
- B、the DBA_ALERTS view
- C、the Database Control Home page
- D、the Database Control performance page
- E、the Database Control Maintenance page
正确答案:C
第8题：

Your network contains two servers named Server1 and Server2 that run Windows Server 2003 Service Pack 2 (SP2). Server1 has a folder named Home. Home has a home folder for each user. Permissions for each home folder allow users to access only their own home folders. You need to copy the Home folder from Server1 to Server2. All file and folder permissions configured on Server1 must be retained. You must achieve this goal by using the minimum amount of administrative effort. What should you do? （）
- A、On Server2, use Xcopy to copy the Home folder from Server1.
- B、On Server2, use Windows Explorer to copy the Home folder from Server1.
- C、On Server1, run Xcacls. On Server1, use Copy to copy the Home folder to Server2 and then run Xcacls.
- D、On Server1, use Windows Backup to back up the Home folder. On Server2, use Windows Backup to restore the Home folder
正确答案:D
第9题：

单选题
Chauncy, like most bulldogs, has a fondness for meat and gravy.
A
like most bulldogs, has
B
as most bulldogs, have
C
like many bulldogs, have
D
like most bulldogs, having
E
as with many bulldogs, has

正确答案： A
解析：
B、C中动词的单复数与主语不同；D项结构不完整；E项中as的使用错误，故本题选A项。
第10题：

单选题
You define an alert to be raised when the USERS tablespace usage has reached 80%of the total space. Which area would you refer to， in order to confirm that the alert has been raised due the event？（）
A
the alert.log file
B
the DBA_ALERTS view
C
the Database Control Home page
D
the Database Control performance page
E
the Database Control Maintenance page

正确答案： B
解析：暂无解析
第11题：

单选题
Brazil enjoys an international attention in the following events EXCEPT ______.
A
US President Barack Obama described his Brazilian counterpart as “the most popular politician on Earth”
B
Brazil has become an IMF creditor, not a debtor
C
Brazil responds to a downturn by stimulating the economy instead of cutting back
D
Brazilian interest rates have dropped dramatically

正确答案： D
解析：
题目问的是：下列哪一项不是让巴西享有国际关注的事件？文章第13段提到“It is a plan, not reality. Lula is prepared to commit $10bn to the IMF.”，也就是说，卢拉准备交付100亿美元给国际货币基金组织，这只是计划，而非事实。故选B。
第12题：

单选题
You are the administrator of Company.com’s network. Your network has 100 Windows 2000 Professional computers and 10 Windows 2000 Server computers. Users on the network save their work files in home folders on a network server. The NTFS partition that contains the home folders has Encrypting File System (EFS) enabled. In addition, the network servers is configured with disk quotas for the NTFS volume that contains the home folders. All users have a default limit of 100 MB, and the option to deny space to users who exceed their limit has been enabled. A user reports that he cannot save any files to his home folder. He also cannot update files in his home folder. When he attempts to save files to the folder, he receives the following error message: “Insufficient disk space.” Other users are not experiencing this problem with their home folders. You want to enable the user to save files in his home folder. What should you do?（）
A
Use Windows Backup to archive and remove old files on the server.
B
Increase the server’s disk quota entry for the user to accommodate the additional files.
C
Log on to the network as a Recovery Agent.Decrypt all of the user’s files in his home folder.
D
Log on to the network by using the domain Administrator account.Grant the user Full Control permission to his home folder.

正确答案： C
解析：暂无解析
第13题：

()the expansion of international trade, the container service has become popular.
A. For
B. Like
C. With

答案：C
解析：本句意思：随着国际贸易的不断扩展，集装箱服务已成为热门。with 有随着的意思，for 意思是“为了”，like意思是“像，类似”，根据句意选C。
第14题：

She has a _____ interest in everything around her.
A、lively
B、alive
C、live
D、living

参考答案：A
第15题：

—Is Mr. Green at home ? 学科网 —No , he _______ Shanghai .学科网A. has been to B. ha

—Is Mr. Green at home ?
—No , he _______ Shanghai .
A. has been to B. has gone to C. is going to

正确答案：B
第16题：

It can be inferred that eBay ______.（）
[A] has a prototype service
[B] has similar ads service like Google
[C] is featured by its auction listings
[D] offers a searchable database of free listings

正确答案：C
第17题：

According to the manager of ABB Corp., this new service _______ very positively by customers who get the service details and cost information quicker.

A.has received
B.has been received
C.have received
D. has been receiving

答案：B
解析：
第18题：

A company may use the Windows XP Professional MUI Pack because the company：（）
- A、has offices where users who speak different languages share computers.
- B、wants to maintain multiple operating systems.
- C、has users who work remotely at home offices.
- D、wants to deploy and maintain a single operating system standard.
正确答案:A,D
第19题：

You are the administrator of Company.com’s network. Your network has 100 Windows 2000 Professional computers and 10 Windows 2000 Server computers. Users on the network save their work files in home folders on a network server. The NTFS partition that contains the home folders has Encrypting File System (EFS) enabled. In addition, the network servers is configured with disk quotas for the NTFS volume that contains the home folders. All users have a default limit of 100 MB, and the option to deny space to users who exceed their limit has been enabled. A user reports that he cannot save any files to his home folder. He also cannot update files in his home folder. When he attempts to save files to the folder, he receives the following error message: “Insufficient disk space.” Other users are not experiencing this problem with their home folders. You want to enable the user to save files in his home folder. What should you do?（）
- A、 Use Windows Backup to archive and remove old files on the server.
- B、 Increase the server’s disk quota entry for the user to accommodate the additional files.
- C、 Log on to the network as a Recovery Agent.Decrypt all of the user’s files in his home folder.
- D、 Log on to the network by using the domain Administrator account.Grant the user Full Control permission to his home folder.
正确答案:B
第20题：

You are the administrators of your company's network. Your network has 75 Windows 2000 Professional computers and eight Windows 2000 Server computers. Users on the network drive save their work files in home folders on a network server. The NTFS partition that contains the home folders has Encrypting File System (EFS) enabled. The partition also has disk quotas defined. A user named Candy reports that she cannot save any files to her home folder. She also cannot update files in her home folder. When she attempts to save files to the folder she receives the following error message: "insufficient disk space". Other users are not experiencing this problem with their home folders. You want to enable Candy to save files in her home folder. What should you do? （）
- A、Log on to the network as a Recovery Agent. Decrypt all of candy's files in her home folder
- B、Log on to the network by using the Domain Administrator account. Grant Candy full control permission to her home folder
- C、Use Windows Backup to archive and remove old files on the server
- D、Increase the server disk quota entry for Candy to accommodate the additional files
正确答案:D
第21题：

单选题
A
The World Cup broadcast has broken its record in America.
B
Americans' interest in football has surged this year.
C
Smart phones and tablets become more and more popular.
D
Americans were not interested in The World Cup previously.

正确答案： B
解析：
第22题：

单选题
Your network contains the following servers： - A two-node Hyper-V failover cluster that runs Windows Server 2008 R2 - A server that has Microsoft System Center Operations Manager 2007 R2 installed - A server that has Microsoft System Center Virtual Machine Manager 2008 R2 installed You need to provide certain users with the ability to create their own virtual machines （VMs）. The solution must minimize the number of permissions assigned to the users. What should you do？（）
A
Deploy the VMM Self Service Portal. Create VM templates. Create a self-service user role
B
Deploy the VMM Self-Service Portal. Add the users to the Power Users group. Deploy the VMM Administrator Console to the users
C
Deploy Windows Deployment Services （WDS）. Create VM templates. Create a self-service user role
D
Deploy Windows Deployment Services （WDS）. Add the users to the Power Users group. Deploy the VMM Administrator Console to the users

正确答案： D
解析：暂无解析
第23题：

多选题
Your IT director has decided to allow employees to use their laptops at home as well as in the office. You have deployed the Junos Pulse client to allow access to the offices 802.1X-enabled wired network. Your company also has the Junos Pulse Secure Access Service deployed. You want the Junos Pulse client to automatically launch the appropriate access method depending on each users location. Which three are supported to determine the users location?（）
A
MAC address
B
DNS server
C
DHCP server
D
resolve address
E
endpoint address

正确答案： D,E
解析：暂无解析

【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

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