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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?
What is routing region? When hierarchical routing is used, the routers are separated into what we call regions, with each router knowing all the details about how to route pack
Can you define the difference among trusted and untrusted networks?
Question: (a) Explain the usage of the following parts of the IPv4 datagram format. i. VERS ii. HLEN iii. TOTAL LENGTH iv. SERVICE TYPE v. HEADER CHECKSUM (b) Na
if the signal input to an amplifier is 0 dBm what is the power output in mW if the gain of the amplifier is 20 dB ?
SWITCHING: A switched LAN has a single electronic device that sends frames among the connected devices. A hub with several ports simulates a single shared phase. However a swi
What is Ping? Ping is a utility program that permits you to check connectivity among network devices on the network. You can ping a device by using its IP address or device nam
Gives excellent low-level control of parallelism; Portable; Minimal overhead in data distribution and parallel synchronisation; and It is less error prone. Drawb
Question 1: (a) In the context of an information system, distinguish and relate among the terms: data, information and decision-making. (b) Describe at least two chall
What are TP-Lite and TP-Heavy Monitors? Ans) TP-Lite is simply the integration of TP Monitor functions in the database engines.TP-Heavy are TP Monitors which handles the Client/
If the number of incoming clients invokes exceeds the number of processes in a server class, the TP Monitor might be dynamically start new ones and this is known as Load balancing.
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