A, C, E. To define a Class A address, the first bit in the first byte must be a zero. The range is 1 to 126, and the first octet represents the entire network portion of the address. See Chapter 2 for more information.
C. The command line console 0 places you at a prompt where you can then set your console user-mode password. See Chapter 4 for more information.
A. 256 − 192 = 64. 64 + 64 = 128. 128 + 64 = 192. The subnet is 128, the broadcast address is 191, and the valid host range is the numbers in between, or 129–190. See Chapter 3 for more information.
B. The passive command, short for passive-interface, stops regular updates from being sent out of an interface. However, the interface can still receive updates. ...
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