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a. If a password to a cipher is exactly 8 characters long, and each character can be selected from [0-9], [a-z], and [A-Z], how many different passwords are possible?
b. Suppose a system requires passwords be 8 characters long, include at least one capital letter, at least one digit and at least one character from the set of 5 special characters { !,#,%,&,*} . What advantage does this provide an attacker who is trying to guess a password?
Explain the meaning of Disassociation A notification from either a station or an AP that an existing association is terminated. A station should provide this notification befor
Company seldom uses a single router to connect its entire network for two purpose. Because the router must transmit every packet, the processor in a provided router is insuff
How does a Token-Passing Protocol works? The token-passing protocol relies on a control signal known as the token. A token is a 24-bit packet that circulates throughout the net
Can you explain in short what VPN is?
What are the data units at different layers of the TCP / IP protocol suite? The data unit formed at the application layer is known as a message, at the transport layer the data
AILURES AND BATHTUB CURVE The life of a component system can be grouped into three different phases typical curve depicting these three is called the bathtub curve due to its s
Can you describe the concept of Collision domain?
The grouped SQL statements are known as Transactions (or) A transaction is a collection of actions embused with ACID properties.
Half duplex is analogous to a one a lane bridge, it can handle traffic in both directions but no at the similar time.
Explain the Multipath resistance The chipping codes used for CDMA not only exhibit low cross-correlation but also low autocorrelation. Thus, a version of the signal that is del
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