Computer Networking
Which of the following is true regarding access lists applied to an interface?

One access list may be configured, per direction, for each layer 3 protocol configured on an interface.
You can place as many access lists as you want on any interface until you run out of memory.
You can apply only one access list on any interface.
You can apply two access lists to any interface.

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Computer Networking
You are working with a network that has the network ID 10.9.0.0 and contains 73 networks. In the next year, you will be adding an additional 27 branch offices to your company. For simplified management, you want to keep the most possible hosts per subnet. Which subnet mask should you management, you want to keep the most possible hosts per subnet. Which subnet mask should you use?

255.240.0.0
255.252.0.0
255.224.0.0
255.254.0.0
255.248.0.0

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Computer Networking
Error detecting code is

the ratio of the data units in error to the total number of data units
an error-detecting code based on a summation operation performed on the bits to be checked
a check bit appended to an array of binary digits to make the sum of all the binary digits.
a code in which each expression conforms to specify rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
None of these

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