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You work for a large public university that utilizes a web-based registration and cashiering system that allows students to register for, pay for, and drop classes. Naturally, peak usage times are during registration season shortly before the start of a new quarter. The system has been in place for about a year and a half and has greatly reduced the workforce needed to staff the registration office during registration season; as a result of implementing the new system, over three-quarters of the registration staff were reassigned to other parts of the university. However, during registration for the most recent quarter, the web-based system suffered a crippling distributed denial-of-service (DDoS) attack that made the system unavailable for about 24 hours. The university's network staff was certain that the attack did not initiate from an external network source since the university has a series of mechanisms in place to intercept such attacks. Further investigation revealed that the attack originated from the internal network. The network team discovered that a password sniffer application was somehow installed on a large portion of the computers in various university computer labs. The password sniffer captured one of the administrative passwords that was recently used to remotely install a critical operating system patch for these computers. Once compromised, the computers were then used collectively to perform a DDoS attack that flooded the registration system's web servers with thousands of bogus HTTP requests, which quickly overwhelmed the servers and caused them to become unavailable. As the lead network specialist, you have been asked to recommend countermeasures to protect the university's registration system against this type of denial-of-service (DoS) attack. Task: A. Create a diagram to illustrate how the attack occurred. In your diagram, include the following:
B. Recommend in an executive summary (suggested length of 2 pages) preventive measures to counter this type of DoS attack. Note: The executive summary will be read primarily by nontechnical management staff, so it is important that the summary sufficiently develops and addresses the topic but does not overwhelm the reader with unexplained technical terminology. C. When you use sources, include all in-text citations and references in APA form
What are some main attributes of product and how may it help operations of organization? How do third-party plug-ins change process of diagnosing and troubleshooting errors in application?
Assume that you have the following definition of a struct. struct partsType { string partName; int partNum; double price; int quantitiesInStock; }; Declare an array, inventory, of 100 components of type partsType.
Create an applet to draw a digit using the method fillRect of the class Graphics. For instance, if the input is 4, the applet will display the digit 4. In java language please
Sometimes a slight change in the problem can significantly modify form of its solution. For instance, determine simple algorithm for solving following problem and categorize it using big-theta notation.
The shipping clerk at Rinky Dooflingy Corporation is faced with the problem: Dooflingies are very deilicate and must be shipped in special containers.
True/False Indicate whether the statement is true or false. 1. Each scripting language requires its own interpreter. 2. A function can not return a value.
You are the engineer involved in development of financial system. Should you simply abandon work until procuring organization has sorted out problem?
Find out the number of candidate keys
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Write a program (called Grades) that translates a number between 0 and 4 into the closest letter grade. For example, the number 2.8 (which might have been the average of several grades) would be converted to B-. Break ties in favor of the better g..
Write a program that reads in the length and width of a rectangular yard (in meters) and the length and width of a rectangular house (in meters) placed in the yard.
Include any information you believe adds to the material in the text. Describe any areas where you see disagreement between the two authors.
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