You are the network consultant from Cisco.com. Please point out which Layer 2 access designs does not support VLAN extensions?()A. Flex LinksB. loop-free UC. looped squareD. looped triangle

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第2题：

You are the Cisco Network Designer in Cisco.com. In your company site, a NAS is both physically and logically in the traffic path. The NAS identifies clients solely based on their MAC addresses. In which access mode has this NAS been configured to operate?（）

• A、Layer 2 mode
• B、Layer 2 Edge mode
• C、Layer 3 mode
• D、Layer 3 In-Band mode

第3题：

You are the network consultant from Cisco.com. Please point out the reason that STP required when VLANs do not span access layer switches.（）

• A、ensure a loop-free topology
• B、protect against user-side loops
• C、support business applications
• D、risk of lost connectivity without STP

第4题：

You are the Cisco Network Designer in Cisco.com. Which layer NAS operating mode are ACLfiltering and bandwidth throttling only provided during posture assessment？（）

• A、 Layer 2
• B、 Layer 3
• C、 Layer 4
• D、 out-of-band

第5题：

You are the network consultant from passguide.com. Could you please tell customers what strategy will protect network resources and services from unauthorized actions?（）

• A、Content storage networking
• B、Network optimization
• C、Network management
• D、Network security

第6题：

You are the network consultant from Cisco.com. Please point out which Layer 2 access designs does not support VLAN extensions?（）

• A、Flex Links
• B、loop-free U
• C、looped square
• D、looped triangle

第7题：

While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."At which OSI layer is this problem associated with?（）

• A、The data link layer
• B、The application layer
• C、The access layer
• D、The session layer
• E、The network layer

第8题：

While troubleshooting a network connectivity problem, a technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out." is displayed. At which layer of the OSI model does the problem most likely exist（）。

• A、the session layer
• B、the protocol layer
• C、the data link layer
• D、the access layer
• E、the network layer
• F、the application layer

第9题：

Your network contains a wireless access point. You have a computer that runs Windows 7. The computerconnects to the wireless access point. You disable Service Set Identifier (SSID) broadcasts on the wirelessaccess point. You discover that you are now unable to connect to the wireless access point from theWindows 7 computer. You need to ensure that the computer can connect to the wireless access point. What should you do?（）

• A、From Credential Manager， modify the generic credentials.
• B、From Credential Manager， modify the Windows credentials.
• C、From Network and Sharing Center， turn on Network discovery.
• D、From Network and Sharing Center， modify the wireless network connection settings.

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第13题：

You are the Cisco Network Designer in Cisco.com. Your company is using the G.711 codec with 802.11a access point radios. This can support a maximum of how many phones per access point?（）

• A、5
• B、10
• C、14
• D、20

第14题：

Which of these Layer 2 access designs does not support VLAN extensions？（）

• A、FlexLinks
• B、loop-free U
• C、looped square
• D、looped triangle
• E、loop-free inverted U

第15题：

You are the Cisco Network Designer in Cisco.com. Which layer NAS operating mode are ACL filtering and bandwidth throttling only provided during posture assessment?（）

• A、Layer 2
• B、Layer 3
• C、Layer 4
• D、out-of-band

第16题：

You need make configuration changes to an existing layer 3 switch in the Company network. On a  multilayer Catalyst switch，  which interface command is used to convert a Layer 3 interface to a  Layer 2 interface？（）

• A、 switchport access vlan vlan-id
• B、 switchport
• C、 switchport mode access
• D、 no switchport
• E、 None of the other alternatives apply

第17题：

You are the network consultant from Cisco.com. Please point out two statements correctly describe an IPS device（）

• A、It resembles a Layer 2 bridge.
• B、Traffic flow through the IPS resembles traffic flow through a Layer 3 router.
• C、Inline interfaces which have no IP addresses cannot be detected.
• D、Malicious packets that have been detected are allowed to pass through, but all subsequent traffic is blocked.

第18题：

You are the Cisco Network Designer in Cisco.com. You are designing an e-Commerce module, which routing statement is correct?（）

• A、Routing is mostly static.
• B、Hardcoded IP addresses are used to support failover.
• C、Inbound servers use the CSM or ACE as the default gateway.
• D、VLANs between the access layer switches are used for FHRP protocols.

第19题：

You are the Cisco Network Designer in Cisco.com. Which two statements about Layer 3 access designs are correct?（）

• A、Convergence time is fractionally slower than STP.
• B、Broadcast and fault domains are increased.
• C、IP address space is difficult to manage.
• D、Fast uplink convergence is supported for failover and fallback.

第20题：

You have a computer that runs Windows XP Professional. The computer has an 802. 11g wireless network card. You have a wireless access point that is secured by using WiFi Protected Access (WPA). The service set identifier (SSID) of the wireless access point does not broadcast. You need to establish a wireless connection to the wireless access point. What should you do?（） 

• A、From the Device Manager, open the wireless network adapter properties and click Advanced. 
• B、From the Device Manager, right-click the wireless network adapter and click Scan for hardware changes. 
• C、From the Wireless Network Connection Properties, select View Wireless Networks. 
• D、From the Wireless Network Connection Properties, click Change Advanced Settings. From the Wireless Networks tab, select Add a preferred network. 

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