单项选择题
A computer is able to ping other devices on the same network but is unable to ping devices onanother network. Which of the following needs to be configured?（）
A. DNS primary server
B. Host route
C. Proxy ARP
D. Default gateway
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Two autonomous networks who wish to exchange routing data should use which of the following protocols?（）
A.OSPF
B.BGP
C.EIGRP
D.IS-IS -
单项选择题
Two business partners have recently been connected via a dedicated extranet. It has been discovered that each of the companies are using the same private IP address space. Which of the following will help to resolve potential routing issues?（）
A.Multicast
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A small business with eight employees has just opened their office in a renovated loft in a busy downtown area. The owner of the building does not want to run any additional wiring beyond power, to preserve the historic nature of the building. Because of this stipulation, almost all tenants in the building have chosen to implement wireless. Which of the following should be the FIRST step in setting up this SOHO network?（）
A. Run a wireless site survey
B. Speak to tenants to determine their telephone standards.
C. Install and configure a Gigabit switch.
D. Determine the operating system versions.
