CCNA真题(1)TCP_IP：地址和协议

文章作者 100test 发表时间 2011:03:17 20:11:10
来源 100Test.Com百考试题网

1: Your junior network administrator wants to know what the default subnet mask is for a Class C IP address. What do you tell him?
A. 255.0.0.0
B. 255.255.0.0
C. 255.245.255.0
D. 255.255.255.0
E. 255.255.255.255