Computers and Technology, 26.12.2019 22:31 haleyblu6281

Anetwork administrator wants to have the same network mask for all networks at a particular small site. the site has the following networks and number of devices:
ip phones - 22 addresses
pcs - 20 addresses needed
printers - 2 addresses needed
scanners - 2 addresses needed
the network administrator has deemed that 192.168.10.0/24 is to be the network used at this site. which single subnet mask would make the most efficient use of the available addresses to use for the four subnetworks?

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Answer from: tinyiaihfurlow

The subnet mask for all networks in the site is = 255.255.255.224

Explanation:

IP version 4 addresses have three main classes, they are;

Class A : 0 - 126

Class B : 128 - 191

Class C : 192 - 223

And they are define in terms of host and network portion, by the subnet mask.

Class A: 10.0.0.0 , subnet mask: 255.0.0.0

Class B: 172.16.5.3 , subnet mask: 255.255.0.0

Class C: 192.168.2.4 , subnet mask: 255.255.255.0

The "255" on the mask represents the network portion on the ip address, while "0" represents the host.

IPv4 addresses are 32 bits, with each for the four portions are 8 bits (or octet).

The highest number of host is; IP phones = 22 addresses

To get the mask, we have to get the number of possible host;

host= 2 $x^{n} - 2$

To get a little close to 22, we substitute 5;

=2 $x^{5}-2$

=32 - 2 = 30 hosts

subnet mask; 255 . 255 . 255 . 255

11111111 11111111 11111111 1 1 1 00000

the 1s at the left of the last octet;

=2 $x^{7}$ + 2 $x^{6}$ + 2 $x^{5}$

= 128 + 64 + 32 = 224

The subnet mask for the site is = 255.255.255.224

Answer from: Quest

Answer: this depends on the amount required to pay off the individual's card as well as how large the minimum payments are.if the amount is significantly large and the minimum payments are significantly small, then it will take a longer time to pay off the credit card.if the amount is significantly small and the minimum payments are significantly large, then it will take less time to pay off the credit card.hence, it would be difficult to answer true or false to this statment.however, for the purpose of this statement, it is most likely assumed that regardless of the amount to pay off the credit card the minimum payments would be quite large.therefore, the better option would be to pick 'true' as your answer.hope this ! : )have a lovely day! < 3

Answer from: Quest

Is it a multiple choice question? if not rhen how long does the answer need to be?

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