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5 questions computer science
1. If you have 20 stations all connected to the same wire and all using digital transmission. What method of sharing the media must be used? Why do you need a sharing method? 2. Wiring specifications for a protocol such as Ethernet have a maximum length for a wire between two stations. Why does there have to be a maximum length for a wire? 3. What transmission impairment(s) are improved when moving from twisted pair to coax cable? 4. What are the three types of transmission circuits? Briefly describe each. 5. List the different types of modulation and briefly describe each.
Assume the existence of a Window class with methods getWidth and getHeight, and a subclass TitledWindow, with a constructor accepts a string corresponding to the title of the window.
A hub is capable of operating in full duplex mode
Explain what storage devices are, comprising the explanation of storage media. Write examples of at least three various kinds of storage devices.
Fail authentication page will ask user to create the new account if the user does not have an account on the system.
In the next three columns show how each value is represented using the binary, octal, and hex number systems. Identify when and why each of the each three numbering systems is used ?
Which of the following is true of a network structure? The Management Information system (MIS) structure with one main computer system is called a
Process the data fields through 2NF and 3NF
Choose any of the Perspective boxes in this chapter or the opening case. Then, identify and describe at least seven metrics that could be used to measure the success of the IT systems in your chosen example. For each metric, categorize it as eit..
The only method that can set the counter is the one that sets it to zero. Write a program to test your class definition. (Hint: you need only one instance variable).
Your company is trying to decide whether to execute intrusion detection system (IDS), or intrusion prevention system (IPS).
Using information in the Lesson 09 Online Content
Employees may work from home up to 15 hours per week. Each project leader needs a list of current means of contacting each member of the project team: home phone and home FAX number. To contact employees "on the road" the project leaders also need..
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