According to the OSI model, at which of the following layers is data encapsulated into a packet?
A. Layer 2
B. Layer 3
C. Layer 4
D. Layer 5
E. Layer 6
Answer: B. Layer 3
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The person or persons for whom you are creating a Web site is called the ____________________.
Fill in the blank(s) with the appropriate word(s).
A thief walks up to an electronic lock with a 10-digit keypad and he notices that all but three of the keys are covered in dust while the 2, 4, 6, and 8 keys show considerable wear. He thus can safely assume that the 4-digit code that opens the door must be made up of these numbers in some order. What is the worst case number of combinations he must now test to try to open this lock using a
brute-force attack? What will be an ideal response?
William has been working on a problem with a computer at his company for several hours and still can’t ascertain the problem. The computer will not turn on, and William has tried everything he can think of to fix the computer. He has replaced the power cord, the power supply, and even the power strip the computer is plugged into. William decides that it must be the motherboard and takes the computer to his shop to replace the motherboard on the computer. When he plugs the computer in, it turns on. The problem was not the computer—someone had turned off the switch for the wall outlet that the power strip was plugged into. Where in the troubleshooting process could William have discovered this problem? (Select all that apply.)
A. Identify the problem. B. Establish a theory of probable cause. C. Test the theory to determine cause. D. Establish a plan of action to resolve the problem and implement the solution. E. Verify full system functionality. F. Document findings.
When you give ____ testimony, you present this evidence and explain what it is and how it was obtained.
A. technical/scientific B. expert C. lay witness D. deposition