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This exercise examines deterministic packet selection. Assume that the packet header contains spaces for routers to enter their IP addresses.
a. Suppose the header contains space for 30 router addresses. Initially, these spaces contain all zero bits. As the packet passes through a router, the router inserts its IP address into the first available location in this space. If there is no room left (because the packet has passed through 30 routers), the router does not insert its address. Describe how an attacker could conceal the route that the packet takes as it travels to its destination.
b. Now suppose the header uses variable-sized space for a list of router addresses. Initially, no router addresses are attached. As the packet passes through a router, the router adds its IP address to this list. Would this prevent the attack in your answer to part (a)? Why or why not? What other problems would this variable-length router address field cause?
To implement the various placement algorithms discussed for dynamic partitioning (Section 7.2), a list of the free blocks of memory must be kept. For each of the three methods discussed (best-fit, first-fit, next-fit), what is the average length o..
Create and populate a LinkedList using a one dimensional array. Add 6 numbers to this LinkedList. Search this LinkedList and find the smallest number.
The levels of transformation in Figure 1.6 are often referred to as levels of abstraction. Is that a reasonable characterization? If yes, give an example. If no, why not?
Select what you perceive to be the most concerning crime(s) that utilizes computers and explain how this crime(s) is aided by technology. Justify why you perceive this crime(s) to be of most concern.
Through the editor, the user can specify margin settings, page length, and tab settings. Then, evaluate the quality of your design.
There are 20 students in a class and each student must receive a grade of A,B,C,D, or F. How many different ways are there or the grades to assigned?
Discuss the semijoin method for executing an equijoin of two files located at different sites. Under what conditions is an equijoin strategy efficient?
Write a method named maxElement, which returns the largest value in an array that is passed as an argument. The method should use recursion to find the largest element. Demonstrate the method in a program.
Write a program that calculates the average of N integers. The program should prompt the user to enter the value for N and then afterward must enter all N numbers. Use an array to save the N integers.
Security in an organization does not reside in a silo; it is affected by other processes and vice versa. Therefore, security should be integrated into the overall IT process to make it effective.
What is the difference between the constrained write and the unconstrained write assumptions? Which is more realistic?
What are issues to consider when deciding to build software in-house or purchase commercial off-the-shelf software (COTS)
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