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Additional info for Cisco Certified Network Associate (CCNA) (Version 90.0)

Sample text

The right answer is A. 0/24 then right answer is B.  After subnetting the address, the team is ready to assign the address.  As a member of the networking team, you must address the network and at the same time converse unused addresses for future growth.  Not all of the host addresses on the left will be used. com - 47 - Using a Class C IP network, which subnet mask will provide one usable subnet per department while allowing enough usable host addresses for each department specified in the graphic?

This is an illegal subnet mask for a class C network, as the third octet can not be divided when using a class C network.  It provides for one network, with 254 usable host IP addresses.  This does not meet the requirement of a minimum of 18 hosts.  How many usable subnets and host addresses per subnet were created as a result of this?  Using the 2n-2 formula (24-2 in this case) we have 14 host addresses and 14 network addresses.  Remember we need to always subtract two for the network and broadcast addresses, so this answer is incorrect.

Two of the networks require more than 14 hosts so this will not do.  All the networks require more than 6 hosts so this will not do.  This is too few.  Which mask would you use? 0. 0. 0. 0. 0 as the subnet mask.  Therefore, any IP address that does not end in one of these numbers will be a valid host IP address. 32/27 network. 192/27 network. 240 Which of the following addresses can be allocated to hosts on the resulting subnet?  How many usable networks and host addresses can be obtained from this?

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Cisco Certified Network Associate (CCNA) (Version 90.0)


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