单项选择题

When designing the WAN module within the enterprise edge, which document is used to specify the connectivity and performance agreements with the service provider?（）

A.RFP
B.RFC
C.SLC/SLA
D.SOW

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单项选择题

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

单项选择题

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 facility requires 210 IP addresses; each warehouse requires 51 IP addresses; each district sales office requires 11 IP addresses; and the IP WAN requires 38 IP addresses. if Acme Nutrition plans for 20 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)

单项选择题

In a VoWLAN deployment, It is recommended（）dBm separation between cells with the same channel.

A.6
B.7
C.10
D.19