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【单选题】

The network is being flooded with invalid Layer 2 addresses， causing switch CAM tables to befilled and forcing unicast traffic to be transmitted out all switch ports. Which type of Layer 2 attackis being used here？（）

A、MAC spoofing

B、VLAN hopping

C、MAC address flooding

D、DHCP flooding

E、Session hijacking

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更多“The network is being flooded with invalid Layer 2 addresses， causing switch CAM tables to befilled and forcing unicast traffic to be transmitted out all switch ports. Which type of Layer 2 attackis being used here？（）”相关的问题
第1题
[单选题] You are the network administrator for Company.Company has just upgraded its network switches from 10 Mbps to 100 Mbps. After the upgrade， you findthat the 100 Windows 2000 Professional computers on the network are still communicating at only 10Mbps. Company uses NWLink as the only network protocol.You want to enable the computers to communicate at 100 Mbps.What should you do？（）

A、Replace the network adapters with 10/100 Mbps network adapters.   B、Enable TCP/IP on all of the computers on the network.  C、Configure the NWLink frame type of the network adapters to be Ethernet II.   D、Configure the NWLink frame type of the network adapters to be Ethernet 802.3.  

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第2题
[单选题] Network Access Protection （NAP） is configured for the corporate network. Users connect to the corporate network by using portable computers. The company policy required confidentiality of data when the data is in transmit between the portable computers and the servers. You need to ensure taht users can access network resources only from computers that comply with the company policy. What should you do？ （）

A、 Create an IPsec Enforcement Network policy  B、 Create an 802.1X enforcement network policy  C、 Create a wired network （IEEE 802.3） Group Policy  D、 Create an Extensible Authentication Portocol （EAP） Enforcement Network Policy  

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第3题
[单选题] You are planning to connect your three branch offices to the corporate site via Frame Relay. The first branch office has been assigned the network 10.1.0.0/16， the second 10.2.0.0/16， the third 10.3.0.0/16， and the corporate headquarters uses 10.0.0.0/16. You would like to summarize all branch and corporate networks into a single route at the corporate site. Which network address and subnet mask should you choose？（）  

A、 10.0.0.0/24  B、 10.0.0.0/16  C、 10.0.0.0/14  D、 10.0.0.0/15  

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第4题
[多选题] The network technician is planning to use the 255.255.255.224 subent mask on the network.which threevalid IP addresses can the technician use for the hosts？（）

A、172.22.243.127  B、172.22.243.191  C、172.22.243.190  D、10.16.33.98  E、10.17.64.34  F、192.168.1.160  

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第5题
[单选题] For security reasons, the network administrator needs to prevent pings into the corporate networks from hosts outside the internetwork. Which protocol should be blocked with access control lists？（）

A、IP  B、ICMP  C、TCP  D、UDP  

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第6题
[多选题] What are the 2 types of interfaces in an NPIV mode network topology?（）

A、Local  B、Server  C、Network  D、Border  

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第7题
[单选题] The company has a Windows 2008 Active Directory-based network.The network contains an Exchange Server 2003 organization.The management instructs you to deploy Exchange Server 2010 in your network.You decide to prepare the schema and domain first.Which of the following commands should you run prior to performing the normal schema and domain preparation？（）

A、Setup /PrepareSchema  B、Setup /PrepareLegacyExchangePermissions  C、Setup /PrepareAD  D、Setup /PrepareLegacyExchangePermissions：child.Xxx  

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第8题
[单选题] You work as an administrator at ABC.com. The ABC.com network consists of a single domain named ABC.com. All servers in the ABC.com domain， including domain controllers， have Windows Server 2012 R2 installed.The ABC.com network has a server named ABC_SR08 that hosts three virtual machines named ABC_VT81， ABC_VT82 and ABC_VT83. ABC_VT81 runs Microsoft Network Monitor 3.4. Which of the following options would allow ABC_VT81 to capture all network communications with ABC_VT82？（）

A、The Router Guard settings.  B、The Port Mirroring settings.  C、The Bandwidth Management settings.  D、The VLAN ID settings.  E、The NIC Teaming settings.  

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第9题
[单选题] Your company has just upgraded its CATAGORY 5 Ethernet network from 10Mbps to 100Mbps. After the upgrade， the 20 Windows 2000 Professional computers in the marketing department can no longer connect to the network. The remaining 80 Windows 2000 computers in the company can connect， however. Your company uses NWLink as the only network protocol.You need to connect the computers in the marketing department to the network. What must you do？ （）

A、Configure the NWLink frame type of the network adapters to be ethernet 802.3.  B、Configure the NWLink frame type of the network adapters to be ethernet II.  C、Replace the network adapters with 10/100 BNC adapters.  D、Replace the network adapters with 10/100 UTP network adapters.  

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第10题
[单选题] A user is unable to connect to the network. A network technician is able to determine that there is a problem on the switch. All other users on that switch are able to connect successfully to the network. Which of the following is a probable cause？（）

A、Switching loop is occurring on the switch.  B、Wrong subnet mask on the switch.  C、Incorrect SNMP settings on the switch.  D、Port is misconfigured on the switch.  

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