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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?
Differentiate between Fast fading and Slow fading Fast fading refers to changes in signal strength among a transmitter and receiver as the distance among the two changes by a s
Get the network design for a company
A communication protocol is an agreement which specifies a common language two computers use to exchange messages. For instance, a protocol denotes the exact format and meaning of
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Burn in Address other name is MAC address
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The "ipx delay number" command will permit an administrator to alter the default settings. Explain the default settings? Ans) For LAN interfaces, one tick; for WAN interfaces, s
Bootp protocol normally use it in dhcp protocol, it is configured manually in order to give ip add or there relvent host. Rarp is a work just opposite of Arp. Rarp stand for rev
Q. Calculate Utilization percentage of the link? - System: Stop and wait ARQ - Bandwidth: 1Mbps - Round trip for one bit: 20ms - Frame length: 1000 bits Utilizatio
If the host has the subnet ID why do we require a subnet mask?
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