多項選擇題What are two design guidelines for VoIP networks？（）

A. Delay should be no more than 10 ms.
B. Loss should be no more than 1 percent.
C. Jitter should be less then 40 ms.
D. Managed bandwidth is strongly recommended for voice control traffic.


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2.多項選擇題What are three primary activities in the cycle of building an enterprise security strategy？（）

A. activity audit
B. administration
C. policy establishment
D. technology implementation

3.多項選擇題Which two of these are recommended practices with trunks？ （）

A. use ISL encapsulation
B. use 802.1q encapsulation
C. set ISL to desirable and auto with encapsulation negotiate to support ILS protocol negotiation
D. use VTP server mode to support dynamic propagation of VLAN information across the network 
E. set DTP to desirable and desirable with encapsulation negotiate to support DTP protocol negotiation.

4.單項選擇題When is the site-to-site remote access model appropriate？ （）

A. for multiple ISDN connections
B. for modem concentrated dial-up connections
C. for a group of users in the same vicinity sharing a connection
D. for use by mobile users

8.單項選擇題You are the Cisco Network Designer. Which of these is least important when determining howmany users a NAS can support？（）

A. bandwidth
B. number of plug-ins per scan
C. total number of network devices
D. number of checks in each posture assessment

9.單項選擇題Acme Nutrition manufactures a wide variety of vitamin supplements. It has a single manufacturing facility with 3 regional warehouses and 16 district sales offices. Currently the manufacturing facilityrequires 210 IP addresses； each warehouse requires 51 IP addresses； each district sales officerequires 11 IP addresses； and the IP WAN requires 38 IP addresses. if Acme Nutrition plans for20 percent growth in facilities， how many Class C subnets will the district sales offices require？（）

A. 19 （3 from the warehouse range and 16 from a separate Class C address）
B. 19 （3 from the warehouse block， 15 from a separate Class C block and 1 from the IP WAN block）
C. 20 （4 from the warehouse range，15 from a separate Class C block and 1 from the IP WAN block）
D. 16 （3 from the warehouse range and 13 from a separate Class C address）

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Which two of these correctly describe asymmetric routing and firewalls？ （）

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Which three of the following descriptions are true about the firewall modes？ （）

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In which two locations in an enterprise network can an IPS sensor be placed？ （）

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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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Which two statements about FCIP and iSCSI are correct？（）

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How many channels are defined in the IEEE 802.11b DSSS channel set？（）

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What are two characteristics of GSS？ （）

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During consultation， you find that a customer has only a single asset closet and is looking for asolution that is easy to deploy. Which NAS physical deployment model would you suggest to this customer？（）

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