Ezonexam is installing IP phones in a new office. The phones and office computers connect to the same device. To ensure maximum throughout for the phone data sessions, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffic. What is the best network device to which to directly connect the phones and computers and what technology should be implemented on this device? (Choose two)A. VLANB. SubinterfaceC. STPD. HubE. SwitchF. RouterG. Wireless Access PointH. VTP
Ezonexam is installing IP phones in a new office. The phones and office computers connect to the same device. To ensure maximum throughout for the phone data sessions, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffic. What is the best network device to which to directly connect the phones and computers and what technology should be implemented on this device? (Choose two)
A. VLAN
B. Subinterface
C. STP
D. Hub
E. Switch
F. Router
G. Wireless Access Point
H. VTP
相关考题：
A company is installing IP phones. The phones and office computers connect to the same device. To ensure maximum throughput for the phone data, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffic. What is the best network device to which to directly connect the phones and computers, and what technology should be implemented on this device?（）A.hubB.routerC.switchD.STPE.subinterfacesF.VLAN
共用题干第二篇Cell Phones : Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case,a traveling salesman had to retire at a young age because of serious memory loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man used to talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years. His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.On the safety issue of mobile phones,the manufacturing companies_________.A:deny the existence of mobile phone radiationB:develop new technology to reduce mobile phone radiationC:try to prove that mobile phones are not harmful to healthD:hold that the amount of radiation is too small to worry about
共用题干第二篇Cell Phones : Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case,a traveling salesman had to retire at a young age because of serious memory loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man used to talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years. His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.People buy cell phones for the following reasons EXCEPT that_________.A:they're popularB:they're usefulC:they're cheapD:they're convenient
You are a network administrator of a large investor relations company that uses a switchednetwork to carry both data and IP telephony services. Why should you carry voice traffic on aseparate VLAN？（）A、IP phones require inline power and must be in separate VLAN to receive inline powerB、IP telephony applications require prioritization over other traffic as they are more delaysensitiveC、IP phones can only receive IP addresses through DHCP if they are in separate VLAND、The CDP frames from the IP phone can only be recognized by the switch if the phone is in anauxiliary vlan
A company is installing IP phones. The phones and office computers connect to the same device. To ensure maximum throughput for the phone data, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffic. What is the best network device to which to directly connect the phones and computers, and what technology should be implemented on this device?（）A、hubB、routerC、switchD、STPE、subinterfacesF、VLAN
A user reports that when the phone rings in their house the wireless on their laptops becomes disconnected. Which of the following BEST describes the issue?（）A、The cordless phones are plugged into same outlet as the routerB、The cordless phones are 5.8Ghz which interferes with wirelessC、The cordless phones are 2.4Ghz which interferes with wirelessD、The cordless phones are plugged into the RJ-11 jack
You are the network administrator for Tailspin Toys. The company has a main office and two branch offices. The network in the main office contains 10 servers and 100 client computers. Each branch office contains 5 servers and 50 client computers. Each branch office is connected to the main office by a direct T1 line. The network design requires that company IP addresses must be assigned from a single classful private IP address range. The network is assigned a class C private IP address range to allocate IP addresses for servers and client computers. Tailspin Toys acquires a company named Wingtip Toys. The acquisition will increase the number of servers to 20 and the number of client computers to 200 in the main office. The acquisition is expected to increase the number of servers to 20 and the number of client computers to 200 in the branch offices. The acquisition will also add 10 more branch offices. After the acquisition， all branch offices will be the same size. Each branch office will be connected to the main office by a direct T1 line. The new company will follow the Tailspin Toys network design requirements. You need to plan the IP addressing for the new company. You need to comply with the network design requirement. What should you do？ （）A、 Assign the main office and each branch office a new class A private IP address range.B、 Assign the main office and each branch office a new class B private IP address range.C、 Assign the main office and each branch office a subnet from a new class B private IP address range.D、 Assign the main office and each branch office a subnet from the current class C private IP address range.
You are the administrator of Company.com's Windows 2000 Network. The routed TCP/IP network that you administer consists of 10 Windows 2000 Server computers and 75 Windows 2000 Professional computers. All computers are members of a single Windows 2000 domain named Company.com. TCP/IP is the only network protocol used at Company's office. You have recently installed 10 new Windows 2000 Professional computers and you want to enable the new computers to use host names to connect to shared resources on the network. You configure a TCP/IP address and a gateway address on each new computer. You want to complete the configuration to allow the computers to communicate on the network. What should you do?（）A、Configure a DNS suffix.B、Configure a subnet mask.C、Configure an LMHOSTS file.D、Configure an Interface metric.E、Configure at least one DNS address.
Your company uses DHCP to lease IPv4 addresses to computers at the main office. A WAN link connects the main office to a branch office. All computers in the branch office are configured with static IP addresses. The branch office does not use DHCP and uses a different subnet. You need to ensure that the portable computers can connect to network resources at the main office and the branch office. How should you configure each portable computer？（）A、Use a static IPv4 address in the range used at the branch office.B、Use an alternate configureation that contains a static IP address in the range used at the main officeC、Use the address that was assigned by DHCP as a static IP addressD、Use an alternate configuration that contains a static Ip address in the range used at the branch office.
A company is installing IP phones. The phones and office computers connect to the same device. To ensure maximum throughput for the phone data, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffic. What is the best network device to which to directly connect the phones and computers, and what technology should be implemented on this device? (Choose two.)（）A、hubB、routerC、switchD、STPE、subinterfacesF、VLAN
A company is installing IP phones. The phones and office computers connect to the same devicE.To ensure maximum throughput for the phone data, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffiC.What is the best network device to which to directly connect the phones and computers, and what technology should be implemented on this device? （）A、hubB、routerC、switchD、STPE、subinterfacesF、VLAN
A branch office of Acme Insurance has 15 IP phones connected to the main office using the distributed call processing model. Normally， the phones work with great quality. However， during very busy times when all of the agents are on the phone at the same time， the voice quality drops precipitously. Words or phrases or both are dropped from conversations. What is the most likely cause of the problem？（）A、large files are being downloaded over the WAN networkB、IP phone traffic is not being classified correctlyC、more bandwidth is required for the office LAND、Call Admission Control has not been implemented E、employees are watching videos over the internetF、header compression is not being used
You are a desktop administrator for your company. A company user reports that he is unable to use his Bluetooth-enabled mobile phone with his Bluetooth-enabled Windows XP Professional computer. He is trying to play audio from the phone through the speakers on his computer. You verify that other Bluetooth devices work properly with the user’s computer. You test the speakers to make sure they are in working order. You also verify that the mobile phone can send output to a computer. You then discover that the phone cannot detect the computer.You need to ensure that the user can use the phone with his computer. What should you do？（）A、Place the phone in Bluetooth discovery mode.B、Place the user’s computer in Bluetooth discovery mode.C、Add the phone and the computer to the same Bluetooth Personal Area Network （PAN）.D、Install mobile phone synchronization software on the user’s computer.
You are the desktop administrator for one of your company's branch offices. The network in the branch office consists of a single network segment, which contains a domain controller, a DHCP server, 10 Windows 2000 Server computers, and 50 Windows 2000 Professional computers. All servers and client computers are members of the company's Active Directory domain. You purchase 50 new client computers for the branch office. Each new client computer contains a built-in PXE-compliant network adapter. You install and configure RIS on one of the Windows 2000 Server computers that is on the network in the branch office. You create a Windows XP Professional RIS image on the Windows 2000 Server computer. You connect the new client computers to the network in the office, and you turn on each computer. Each computer displays a message stating that it cannot contact a PXE boot server. You verify that the RIS server is connected to the network. You need to ensure that the new client computers can connect to the RIS server and can begin installing Windows XP Professional. What should you do?（）A、Ask a domain administrator to authorize the RIS server. B、Grant the Everyone group Allow - Read NTFS permission on the RIS image.C、Install RIS on the domain controller. Copy the RIS image to the domain controller.D、Add a reservation for the RIS server to the DHCP server.
Your company uses DHCP to lease IPv4 addresses to computers at the main office.A WAN link connects the main office to a branch office. All computers in the branch office are configured with static IP addresses. The branch office does not use DHCP and uses a different subnet. You need to ensure that the portable computers can connect to network resources at the main office and the branch office.How should you configure each portable computer？（）A、Use as tatic IPv4 address in the range used at the branch office.B、Use an alternate configuration that contains a staticI Paddress in the range used at the main office.C、Use the address that was assigned by the DHCP server as astatic IP address.D、Use an alternate configuration that contains a staticI Paddress in the range used at the branch office.
Your company uses DHCP to lease IPv4 addresses to computers at the main office. A WAN link connects the main office to a branch office. All computers in the branch office are configured with static IP addresses. The branch office does not use DHCP and uses a different subnet.You need to ensure that the portable computers can connect to network resources at the main office and the branch office. How should you configure each portable computer？（）A、Use a static IPv4 address in the range used at the branch office.B、Use an alternate configuration that contains a static IP address in the range used at the main office.C、Use the address that was assigned by the DHCP server as a static IP address.D、Use an alternate configuration that contains a static IP address in the range used at the branch office.
Your company uses DHCP to lease IPv4 addresses to computers at the main office. A WAN link connects the main office to a branch office. All computers in the branch office are configured with static IP addresses. The branch office does not use DHCP and uses a different subnet. You need to ensure that the portable computers can connect to network resources at the main office and the branch office.How should you configure each portable computer（）？A、Use a static IPv4 address in the range used at the branch office.B、Use an alternate configuration that contains a static IP address in the range used at the main office.C、Use the address that was assigned by the DHCP server as a static IP address.D、Use an alternate configuration that contains a static IP address in the range used at the branch office.
Your network contains an Active Directory domain named adatum.com. The domain contains a member server named LON-DC1. LON-DC1 runs Windows Server 2012 R2 and has the DHCP Server server role installed.The network contains 100 client computers and 50 IP phones. The computers and the phones arefrom the same vendor. You create an IPv4 scope that contains addresses from 172.16.0.1 to 172.16.1.254.You need to ensure that the IP phones receive IP addresses in the range of 172.16.1.100 to 172.16.1.200. The solution must minimize administrative effort. What should you create？（）A、Server level policiesB、FiltersC、ReservationsD、Scope level policies
You are the administrator of 15 Windows XP Professional portable computers in the sales department of your ompany. The company network uses DHCP to configure the IP addresses of the portable computers when the computers are used in the office. Company policy allows the company portable computers to be connected to users' home networks. The sales department reports that users who use home networks that have manually configured IP addresses are unable to connect the portable computers to their home networks. You want to ensure that users can connect portable computers to their home networks when they are at home and to the company network when they are in the office. You do not want to change the configuration of home computers on users' home networks. You do not want to change the administrative privileges of the sales department users. What should you do?（）A、Configure the network adapters of the portable computers to enable Internet Connection Sharing (ICS). B、Configure the network adapters of the portable computers to enable Automatic Private IP Addressing (APIPA).C、Add a script to the users' desktops that changes the IP configuration between dynamic and manual.D、Configure the IP properties of the portable computers so that they have an alternate configuration.
单选题You are a network administrator of a large investor relations company that uses a switchednetwork to carry both data and IP telephony services. Why should you carry voice traffic on aseparate VLAN？（）AIP phones require inline power and must be in separate VLAN to receive inline powerBIP telephony applications require prioritization over other traffic as they are more delaysensitiveCIP phones can only receive IP addresses through DHCP if they are in separate VLANDThe CDP frames from the IP phone can only be recognized by the switch if the phone is in anauxiliary vlan
多选题A company is installing IP phones. The phones and office computers connect to the same device. To ensure maximum throughput for the phone data, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffic. What is the best network device to which to directly connect the phones and computers, and what technology should be implemented on this device?（）AhubBrouterCswitchDSTPEsubinterfacesFVLAN
问答题One Number Gets It All—Phone, Fax or Voice Mail Tired of having to remember different numbers for your office phone, fax, pager or mobile phone? No room on your business card for the raft of numbers that are now part of everyday business contacts? The answer is at hand—or rather in a number. One number can now be used for all your different devices and communications, thanks to a new system devised by a technology company which uses the science available in the high-growth, hi-tech modem world. Instead of numbers belonging to different devices, the company assigns you one number belonging to you, the person. You have one number for phone, fax, pagers and mobile phones. All your calls and contacts come to this one number so that you can divert unwanted callers politely to your voice mail if you want. Voice messages that come into the same personal number can be turned into emails for delivery to the desktop of your computer or to another person’s computer. You can have trouble-free call-forwarding anywhere in the world. Those are some of the features of Bloodhound, a new service offered by Auckland-based computer telephony integrator—Powercall Technologies Ltd. General manager Nick Little said the company, a subsidiary of the Brocker Technology Group, came to the new one-number system when they wanted to set up in a new office. It would have cost $US 250 (RMB ￥2,000) a month to lease a small phone switchboard. To avoid the capital outlay or the hardware in the office, they set out instead to develop a switchboard based on a PC computer. Then, realizing the market was awash in such products, the company looked at ways to use its experience in voice mail, interactive voice response and unified messaging to develop new subscriber-based services. Mr. Little said Bloodhound, which costs $US 20 (RMB ￥160) a month for full phone, fax and messaging, side-stepped the number portability issue (whether phone owners can use the same number in different phone company systems or not) because subscribers were given not a telephone number, but their own personal number. “The number we issue is a virtual number belonging to the person. It does not terminate on a physical device, Mr. Little said. The subscriber sets up devices behind the scenes. Bloodhound runs on NT servers and subscribers pay their telephone carriers for line connection and any toll charges. They also pay for calls received on mobile phones via Bloodhound at US$ 25c (RMB ￥2) a minute. But they can change phone carrier company or exchange without having to change all their stationery. Callers are greeted by an automated virtual assistant, which locates the Bloodhound subscriber or takes messages. Calls can be screened, with known callers announced to the subscriber who can choose to accept a call or divert it to another person or voice mail. Fax can be forwarded to any location for printing, without the cellular charges associated with cellphone-based fax services. And if users have a sudden inspiration, they can call Bloodhound and dictate a message for recall later. Simon Morgan from advertising and direct marketing agency Carpe Diem has been a pilot user of the service throughout the year 2000. He said Bloodhound helped his five-person company present a consistent and professional face to the world. One of our staff works from home part-time, but with a Bloodhound number available to the world as her office number. As far as the world is connected, she works in the office. It’s also useful if I’m working at a client site. I can use the ‘I am Here’ feature and get calls forwarded through.
单选题Refer to the exhibit. Which statement is true about a voice VLAN？（）A Physically the voice network and the data network are separate.B The voice traffic will normally be on a different IP subnet than will the data traffic.C End user intervention is necessary to place the phone into the proper VLAN.D The same security policy should be implemented for both voice and data traffic.E The data VLAN must be configured as the native VLAN.
单选题A branch office of Acme Insurance has 15 IP phones connected to the main office using the distributed call processing model. Normally， the phones work with great quality. However， during very busy times when all of the agents are on the phone at the same time， the voice quality drops precipitously. Words or phrases or both are dropped from conversations. What is the most likely cause of the problem？（）Alarge files are being downloaded over the WAN networkBIP phone traffic is not being classified correctlyCmore bandwidth is required for the office LANDCall Admission Control has not been implemented Eemployees are watching videos over the internetFheader compression is not being used
多选题A company is installing IP phones. The phones and office computers connect to the same devicE.To ensure maximum throughput for the phone data, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffiC.What is the best network device to which to directly connect the phones and computers, and what technology should be implemented on this device? （）AhubBrouterCswitchDSTPEsubinterfacesFVLAN
单选题Refer to the exhibit. Which statement is true about a voice VLAN？（）A Physically the voice network and the data network are separateB The voice traffic will normally be on a different IP subnet than will the data trafficC End user intervention is necessary to place the phone into the proper VLAND The same security policy should be implemented for both voice and data trafficE The data VLAN must be configured as the native VLAN
填空题Employees are not allowed (make) ____ personal phone calls in the office.