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Extra resources for 640-801 Cisco CCNA Cisco Certified Network Associate (Version 90.0)

Sample text

It is normally used to reduce the number of route entries in the routing table by advertising numerous routes into one larger route. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco Press, ISBN 1-58720-083-X) Page 236.  Which subnet mask is the most efficient? 252 subnet mask is often used for these types of links, as no IP addresses are wasted.  Which of the masks below would you use? 252 is a /30, so answer B is correct.  It is not possible to use a /38 mask, unless of course IPv6 is being used.

00001010 in binary form. 192. 128. 25 can be assigned to hosts in VLAN1.  The LAN interface of the router is configured with one IP address.  The LAN interface of the router is configured with multiple IP addresses. 128.  Because there is only one LAN interface on the router, sub interfaces will be used, so the router's LAN interface will be configured with 2 IP addresses, one for VLAN 1 and 1 for VLAN 2.  This subnet mask will only provide 62 host IP addresses, and the diagram shows that as many as 114 host IP addresses are needed.

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?  Since we only require 5 different subnets with at most 16 users, this will suffice.  This question requires 5 different networks.  This will only provide 4 networks, with 62 hosts per network.  This will provide for 14 networks, but with only 14 hosts per network so there will not be enough hosts for the Production and Engineering LANs.

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640-801 Cisco CCNA Cisco Certified Network Associate (Version 90.0)

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