Which of the following is a difference between PPTP and L2TP?
a. LT2P supports encryption whereas PPTP does not.
b. PPTP supports encryption whereas L2TP does not.
c. L2TP can work over X.25 and ATM networks whereas PPTP can work only over IP networks.
d. PPTP can work over X.25 and ATM networks whereas L2TP can work only over IP networks.
ANS: C
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Your boss has asked you to tell him how many usable subnets and hosts a Class C network with the IP address and mask of 192.168.10.0/28 can have. How should you respond?
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