CMS专题
单选题When one connection to a host fails in a full mesh network， which of the following is true？（）A All hosts can communicate.B No hosts can communicate.C Half of the hosts will lose communication.D Only the two hosts between the failed connection will lose
题目
All hosts can communicate.
No hosts can communicate.
Half of the hosts will lose communication.
Only the two hosts between the failed connection will lose communication.
相似问题和答案
第1题：
You have two desktop computers at your home. You establish a remote desktop connection from one computer to the other.The remote session fails to show the desktop background of the remote computer. You need to view the desktop background when you establish a remote session.What should you do?（）
A.A
B.B
C.C
D.D
第2题：
A.standardization
B.conversion
C.encapsulation
D.synchronization
第3题：
Which three statements are true about the operation of a full-duplex Ethernet network, which is being used in the Ezonexam LAN? (Choose three)
A．Ethernet hub ports are preconfigured for full-duplex mode.
B．The host network card and the switch port must be capable of operating in full-duplex mode.
C．There are no collisions in full-duplex mode.
D．In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.
E．A dedicated switch port is required for each full-duplex node.
解析：Explanation:
Half-duplex Ethernet is defined in the original 802.3 Ethernet and Cisco says you only use one wire pair with a digital signal running in both directions on the wire. It also uses the CSMA/CD protocol to help prevent collisions and to permit retransmitting if a collision does occur. If a hub is attached to a switch, it must operate in half-duplex mode because the end stations must be able to detect collisions.
Half-duplex Ethernet-typically 10BaseT-is only about 30 to 40 percent efficient as Cisco sees it, because a large 10BaseT network will usually only give you 3- to 4Mbps-at most. Full-duplex Ethernet uses two pairs of wires, instead of one wire pair like half duplex. Also, full duplex uses a point-to-point connection between the transmitter of the transmitting device and the receiver of the receiving device, which means that with full-duplex data transfer, you get a faster data transfer compared to half duplex.
And because the transmitted data is sent on a different set of wires than the received data, no collisions occur. The reason you don't need to worry about collisions is because now Full-duplex Ethernet is like a freeway with multiple lanes instead of the single-lane road provided by half duplex. Full-duplex Ethernet is supposed to offer 100 percent efficiency in both directions; this means you can get 20Mbps with a 10Mbps Ethernet running full duplex, or 200Mbps for FastEthernet.
第4题：
When a host transmits data across a network to another host, which process does the data go through?（）
- A、standardization
- B、conversion
- C、encapsulation
- D、synchronization
正确答案:C
第5题：
Your computer has a wireless network adapter installed. However， the computer fails to connect to the wireless network. You need to ensure that the computer is able to connect to the wireless network. What should you do？（）
- A、Change the Network Category setting of the wireless connection to Public.
- B、Enable the Internet Connection Sharing feature on the wireless network adapter.
- C、Rename the wireless network adapter to match the Service Set Identifier （SSID） of the wireless network.
- D、Configure the wireless network adapter to connect to the appropriate wireless network from the Connect to a network list.
正确答案:D
第6题：
You connect your computer to a wireless network. You discover that this new connection fails to show in the Connect to a network window.You need to view this connection in the Connect to a network window.What should you do?（）
A.A
B.B
C.C
D.D
第7题：
When one connection to a host fails in a full mesh network， which of the following is true？（）
- A、All hosts can communicate.
- B、No hosts can communicate.
- C、Half of the hosts will lose communication.
- D、Only the two hosts between the failed connection will lose communication.
正确答案:A
第8题：
When you are(71)a home or small office network, it is recommended that you use the Network Setup Wizard in Windows XP Home Edition to enable Internet Connection Sharing. The Network Setup Wizard automatically provides all of the network settings you need to(72)one Internet connection with all the computers in your network.
After ICS is enabled, and you make sure that all of your computers can(73)with each other and they have Internet(74), you can use programs such as Internet Explorer and Outlook Express as if they were(75)connected to the Internet service provider(ISP). When a request to the Internet is made, the ICS host computer connects to the ISP and creates the connection so that other computers can reach a specified Web address or download E-mail.
A．creating
B．reach
C．going for
D．setting up
解析：本题意思为“建立网络”。建立计算机网络通常使用setup。答案为D。
第9题：
mesh network Mesh网络
正确答案: 计算机之间有直接连接的一种网络结构。Mesh网由于费用高和难以变动故不常用。参阅总线拓朴和环拓扑。
第10题：
When two hosts are trying to communicate across a network, how does the host originating thecommunication determine the hardware address of the host that it wants to "talk" to?（）
- A、RARP request
- B、Show Network Address request
- C、Proxy ARP request
- D、ARP request
- E、Show Hardware Address request
正确答案:D