CMS专题
单选题Which of the following is the subnet mask for a Class C IP address?（）A 10.0.0.1B 192.168.1.1C 255.255.0.0D 255.255.255.0
题目
10.0.0.1
192.168.1.1
255.255.0.0
255.255.255.0
相似问题和答案
第1题：
A.255.0.0.0
B.255.256.255.0
C.255.255.255.255
D.255.255.00
第2题：
Your ISP has assigned you the following IP address and subnet mask: IP address: 199.141.27.0 Subnet mask: 255.255.255.240 Which of the following addresses can be allocated to hosts on the resulting subnet?（）
- A、199.141.27.2
- B、199.141.27.175
- C、199.141.27.13
- D、199.141.27.11
- E、199.141.27.208
- F、199.141.27.112
正确答案:A,C,D
第3题：
Your ISP has assigned you the following IP address and subnet mask:
IP address: 199.141.27.0
Subnet mask: 255.255.255.240
Which of the following addresses can be allocated to hosts on the resulting subnet?
(Select all that apply)
A. 199.141.27.2
B. 199.141.27.175
C. 199.141.27.13
D. 199.141.27.11
E. 199.141.27.208
F. 199.141.27.112
A,C,D 解析：Explanation:
IP address = 11001000.10001101.00011011.00000000 = 199.141.27.0
Subnet mask = 11111111.11111111.11111111.11110000 = 255.255.255.240
Subnet # = 11001000.10001101.00011011.00000000 = 199.141.27.0
Broadcast = 11001000.10001101.00011011.00001111 = 199.141.27.15
The valid IP address range = 199.141.27.1 - 199.141.27.14
第4题：
A network administrator provides an IP address of 128.135.0.142 and a subnet mask of 255.0.0.0. Once a ping is attempted， it fails. Which of the following options is the most probable cause of the failed ping？（）
- A、0 is not valid in an IP address
- B、128 is a reserved network
- C、The subnet mask should be 255.255.0.0. since it is a class B
- D、A network problem has occurred since IP and subnet are valid
正确答案:C
第5题：
Which of the following is an invalid subnet mask?（）
- A、255.0.0.0
- B、255.256.255.0
- C、255.255.255.255
- D、255.255.00
正确答案:B
第6题：
A.255.255.255.0
B.255.255.255.240
C.255.255.255.248
D.255.255.255.252
E.255.255.255.254
第7题：
An administrator must assign static IP addresses to the servers in a network.For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP propertied box for the sales server?（）
- A、IP address:192.168.20.14 Subnet Mask:255.255.255.248 Default Gateway:192.168.20.9
- B、IP address:192.168.20.254 Subnet Mask:255.255.255.0 Default Gateway:192.168.20.1
- C、IP address:192.168.20.30 Subnet Mask:255.255.255.248 Default Gateway:192.168.20.25
- D、IP address:192.168.20.30 Subnet Mask:255.255.255.240 Default Gateway:192.168.20.17
- E、IP address:192.168.20.30 Subnet Mask:255.255.255.240 Default Gateway:192.168.20.25
正确答案:C
第8题：
A.10.0.0.1
B.192.168.1.1
C.255.255.0.0
D.255.255.255.0
第9题：
Which of the following is the subnet mask for a Class C IP address?（）
- A、10.0.0.1
- B、192.168.1.1
- C、255.255.0.0
- D、255.255.255.0
正确答案:D
第10题：
You are a systems administrator and you are about to assign static IP addresses to various servers on your network. For the network 192.168.20.24/29 the router is assigned to the first usable host address, while the last usable host address goes to your Sales server. Which one of the following commands would you enter into the IP properties box of the sales server?（）
- A、IP address: 192.168.20.14 Subnet Mask: 255.255.255.248 Default Gateway:192.168.20.9
- B、IP address: 192.168.20.254 Subnet Mask: 255.255.255.0 Default Gateway:192.168.20.1
- C、IP address: 192.168.20.30 Subnet Mask 255.255.255.248 Default Gateway:192.168.20.25
- D、IP address: 192.168.20.30 Subnet Mask 255.255.255.240 Default Gateway:192.168.20.17
- E、IP address: 192.168.20.30 Subnet Mask 255.255.255.240 Default Gateway:192.168.20.25
正确答案:C