Access time in hard-disk - Consider a disk holding files with an average file length of 5 KB. Each file is allocated contiguously on adjacent sectors. To better utilize the disk space, it must be periodically compacted, which involves reading each file sequentially and writing it back to a new location. Assuming the standard sector size of 512, an average seek time of 50 ms, 100 sectors per tra...

e-commerc vs e-business - What is the difference between e-commerce and e-business? Can a company engage in one without the other?

Security Engineering - Hi, I need assistance in the following problem please? An increasingly common mechanism is to ask for several pieces of security information rather than one. A call center might ask not just for your mother’s maiden name, a password, and the amount of your last purchase, but also your dog’s nickname and your favorite color. Such schemes need careful evaluation of their...

Digital Evidence - Assume that you feel that your (or your boss’s) email content was always leaked (e.g., some confidential information in your email was known to many others). You decide to carry out an investigation. Write a plan for this investigation. The plan should include: digital evidence source identification, recovery, collection, documentation, and report. The required tools should also...

Differentiate between computer forensics and normal forensics. - What is the essential difference between computer forensics and “normal” forensics? Explain in brief