iptest答案.txt

CCNA的资料！我入侵了学校服务器

1)When you examine the TCP/IP configuration of a computer, you find that it has an IP address of 172.18.64.10 and a subnet mask of 255.255.252.0.
Which of the following IP address ranges represents the entire range of valid host addresses on this subnet?
A. 172.18.1.1 through 172.18.255.254
B. 172.18.64.0 through 172.18.64.255
C. 172.18.64.1 through 172.18.67.254
D. 172.18.64.1 through 172.18.68.254
E. 172.18.64.1 through 172.18.71.254
  C

2)某公司申请到一个C类IP地址，但要连接6个的子公司，最大的一个子公司有26台计算机，每个子公司在一个网段中，则子网掩码应设为（）
A. 255.255.255.0
B. 255.255.255.128
c. 255.255.255.192
d. 255.255.255.224
  D

3)You have the subnet mask 255.255.224.0. Which two IP addresses are on the same subnet? 
A. 160.70.45.6 
B. 160.70.95.250 
C. 160.70.96.2 
D. 160.70.126.4 
E. 160.70.199.1
  C D

4)与10.110.12.29 mask 255.255.255.224属于同一网段的IP地址是（）
A. 10.110.12.0
B. 10.110.12.30
C. 10.110.12.31
D. 10.110.12.32
  B