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1. How would you organize a network for an organization that had five departments? Where would you place the servers, both physically and logically? Specify the types of servers (e-mail, web, application, database, etc.) and provide some justification for your decisions?
2. What is DNS? and what is hosts file used for?
3. What actions can a network or systems administrator take to ensure the security of an organization's resources on the LAN? Linux servers and workstations use a service called iptables to implement a firewall. Do some research on this service and discuss how it enhances computer security?
4. Why do we have private network addresses?
If possible, give examples of: a) A graph with 4 vertices whose degrees are 1, 2, 3 and 3. b) A graph with 6 vertices whose degrees are 2, 4, 3, 3, 4 and 5. If it is not possible, explain why.
If x~y(both have values close to each other but not same), then we would expect some cancellation in computing log(x)-log(y). on the other hand, log(x)-log(y)=log(x/y), and the latter involves no cancellation. Does this mean that computing log..
A glass plate is on a post and you are asked to throw a coin so that it lands on the plate. Why do the coins slide off the plate instead of stay?
It takes 1 nsec to access a word from the cache, 10 nsec to access a word from the RAM, and 10 ms to access a word from the disk. If the cache hit rate is 95% and main memory hit rate (after a cache miss) is 99%, what is the average time to access..
For this project you will write a program to compute the arithmetic mean (average), median, and mode for the values read in from TopicFin.txt. The program results will be written to TopicFout.txt.
Create a Visual Basic program that creates a bill for an automobile repair shop. The shop bills customers at the rate of $35 per hour for labor. Parts and supplies are subject to a 5% sales tax.
IP is described as "best effort delivery service". What exactly does this mean?....What happens if the "best effort" isn't good enough?
Which system resources are probable to be at root of problem? How can you use system tools, like the Task Manager, to help recognize and troubleshoot these problems?
A random string of 100,000 characters is written down, where each character is independently, equally likely to be any of the upper-case letters A through Z in English.
what is the effect of the following statements?
Advise whether you agree or disagree with CEO, specifically addressing ethical issues involved. Suppose you make a decision to hire a hacker, how would you protect your proprietary interests?
Discuss with critical comment, using appropriate illustrations from a range of programming languages, the extent to which the above statement can be considered true.
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