思科认证考试
How many subnets can be gained by subnetting 172.17.32.0/23 into a /27 mask, and how many usable host addresses will there be per subnet?（）A、8 subnets, 31 hostsB、8 subnets, 32 hostsC、16 subnets, 30 hostsD、16 subnets, 32 hostsE、A Class B address can't be s
题目
How many subnets can be gained by subnetting 172.17.32.0/23 into a /27 mask, and how many usable host addresses will there be per subnet?（）
- A、8 subnets, 31 hosts
- B、8 subnets, 32 hosts
- C、16 subnets, 30 hosts
- D、16 subnets, 32 hosts
- E、A Class B address can't be subnetted into the fourth octet.
相似问题和答案
第1题：
The author compares cells with water balloons in order to ______.
A. make you think of summer
B. help you visualize the cells
C. show how rubber is elastic
D. show how many shapes cells can have
第2题：
How many ______ can I take?
A、rice
B、cakes
C、water
D、coffee
第3题：
A、cups of milk
B、cup of milk
C、a cup of milk
第4题：
A. 8 subnets, 31 hosts
B. 8 subnets, 32 hosts
C. 16 subnets, 30 hosts
D. 16 subnets, 32 hosts
E. A Class B address can‘t be subnetted into the fourth octet.
第5题：
A.3
B.5
C.8
D.10
第6题：
A
The music club
The music club needs two people． Read about the four people． How many things can each student do?
Ma Hui
I can’t sing and I can't dance． I can play the violin and the piano．
Petrus
I can’t dance， but I can sing． I can play the violin．
Angela
I can sing， but I can-t dance． I can play the trumpet and the guitar．
Albert
I can sing and dance． I can play the trumpet and the guitar．
( )21． How many things can Ma Hui do?
A． One
B． Two
C． Three
D． Four
21．B【解析】根据Ma Hui的自述l can play the violin and the piano．可知。
第7题：
How many orders are included in standard ship orders? Can you list some?
第8题：
How many usable IP addresses can you get from a conventional Class C address?
A．128
B．192
C．254
D．256
E．510
解析：Explanation:
Class Caddresses range from 192.0.0.0 through 223.225.225.225 and default subnet maskof 255.255.255.0. In Class C addresses, the first 24 bits are used as for the network IDwhile only the last 8 bits is used for the host ID. Using the 2n-2 formula, we can calculate that Class C addresses can support a maximum of 254 (28-2) hosts.
Incorrect Answers:
D. Note that the question asked for the number of usable addresses, and not the total number of all addresses. We must subtract 2 for the network and broadcast addresses to calculate the number of usable addresses in any subnet.
第9题：
A.1
B.2
C.3
D.4
第10题：
How many IP addresses can be configured in a given interface?（）
- A、one primary and one secondary IP address
- B、one IP address
- C、as many IP addresses as you want
- D、one primary and multiple secondary IP addresses
正确答案:C