多項選擇題Flex Links are a pair of a Layer 2 interfaces (switchports or port channels), where one interface is configured to act as a backup to the other. Which two statements are correct regarding Flex Links?（）

A. An interface can only belong to single Flex Links.
B. An interface can belong to multiple Flex Links.
C. Flex Links operate only over single pairs of links.
D. Flex Links automatically disable STP so no BPDUs are propagated.


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1.多項選擇題What four functions does Web Cache Communication Protocol (WCCP) incorporate?（）

A. load balancing
B. scalability
C. remote management
D. fault tolerance
E. service assurance

3.單項選擇題Scalability is provided in the server farm module by which of the following design strategies?（）

A. up to 10Gbps of bandwidth at the access level
B. redundant servers at the access level
C. modular block design at the access level
D. high port densities at the access level

5.單項選擇題To securely transport EIGRP traffic, a network administrator will build VPNs between sites. What is the best method to accomplish the transport of EIGRP traffic?（）

A. IPSec in tunnel mode
B. IPSec in transport mode
C. GRE with IPSec in transport mode
D. GRE with IPSec in tunnel mode

6.單項選擇題A network vulnerability scanner is part of which critical element of network and system security?（）

A. host security
B. perimeter security
C. security monitoring
D. policy management

7.單項選擇題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.

10.多項選擇題What are two considerations to using IP Multicast delivery? （）

A. no congestion avoidance
B. not for bandwidth intensive applications
C. no guaranteed delivery mechanism
D. source sends multiple data streams out each interface

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Refer to the exhibit. Which two statements about the topologies shown are correct?（）

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Cisco Express Forwarding (CEF) is mainly used to increase packet switching speed, reducing the overhead and delays introduced by other routing techniques, increasing overall performance.Which of the following concerning CEF is recommended by Cisco?（）

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In which NAS operating mode are ACL filtering and bandwidth throttling only provided during posture assessment?（）

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Which signal and noise values will result in the best phone communication with an access point?（）

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As an experienced technician, you are responsible for Technical Support. A customer calls to ask the best signal level and noise level for cell phone. How to respond?（）

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One of your customers has deployed a Layer 3 gateway in the untrusted network. Which gateway mode is appropriate for this customer?（）

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As an experienced technician, you are responsible for Technical Support. Which of the following descriptions is correct about the characteristic of SLB one arm mode?（）

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Which of these is a benefit of using Network Admission Control instead of Cisco Identity Based Networking Services?（）

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You are the network consultant from pass4sure.com. One of your customer has six sites, three of which process a large amount of traffic among them. He plans to grow the number of sites in the future. Which is the most appropriate design topology?（）

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What is the recommended radius of a cell for a voice-ready wireless network?（）

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