单项选择题
A. Carrier sense B. Collision detection C. Multiple access points D. Collision avoidance
Which of the following address formats uses 32-bit addr...
单项选择题Which of the following address formats uses 32-bit addressing?（）
A.IPv4 B.MAC address C.IPv6 D.Host address
A user reports that their laptop does not have network ...
A user reports that their laptop does not have network connectivity, but was working fine last week. The technician executes IPCONFIG to see what the IP address is but it comes up with a 169.254.254.1 address. This address is not part of the company's subnet. Which of the following MOST likely identifies this address type?（）
A.Multicast B.DHCP C.APIPA D.Broadcast
In which of the following topologies could the failure ...
单项选择题In which of the following topologies could the failure of one machine cause the entire network tostop functioning?（）
A. Mesh B. Token ring C. Star D. Spanning tree
