多項(xiàng)選擇題Under which two circumstances should Spanning Tree Protocol be implemented？ （）

A. to ensure a loop-free topology
B. to protect against user-side loops
C. when a VLAN spans access layer switches
D. for the most deterministic and highly available network topology
E. because of the risk of lost connectivity without Spanning Tree Protocol


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A. fewer devices to manage
B. moderate-to-high scalability
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D. increased bandwidth with additional interfaces
E. decreased complexity as traffic is filtered from the firewall

2.單項(xiàng)選擇題In which tunnel-less VPN topology do group members register with a key server in order to receivethe security association necessary to communicate with the group？（）

A. Easy VPN
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E. Group Encrypted Transport VPN

3.單項(xiàng)選擇題In a base e-Commerce module design， 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.

5.單項(xiàng)選擇題Which of the following is the primary consideration to scale VPNs？（）

A. packets per second
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C. throughput bandwidth
D. number of tunnels

6.多項(xiàng)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

9.單項(xiàng)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

10.單項(xiàng)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.