Passwords, Access Control, and Distributed Systems

Question An increasingly common mechanism is to ask for several pieces of security information ratherthan one. A call center might ask not just for your mother’s maiden name, a password, and theamount of your last purchase, but also your dog’s nickname and your favourite color. Suchschemes need careful evaluation of their usability and effectiveness using the tools of appliedpsychology. Design such a password protocol and evaluate its usability and effectiveness. (Averbal text description is enough.) (500 words) Answer Passwords, Access Control, and Distributed Systems Password Protocol and its Usability & Effectiveness Passwords are critical in ensuring security of data stored in computers and network systems. A poor choice of passwords may lead to unauthorized access of data which may be highly sensitive, leading to financial losses (Anderson, 2010). Users of various systems are responsible for creating strong passwords which are not vulnerable to security threats posed by hackers and unauthorized users. The following is a design of a password protocol and an analysis of its...
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Computer science
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BENEFITS AND HAZARDS TO ORGANIZATIONS THAT USE SOLID-STATE DRIVE (SSD) STORAGE DEVICES

BENEFITS AND HAZARDS TO ORGANIZATIONS THAT USE SOLID-STATE DRIVE (SSD) STORAGE DEVICES

BENEFITS AND HAZARDS TO ORGANIZATIONS THAT USE SOLID-STATE DRIVE (SSD) STORAGE DEVICES Introduction According to Anderson, Gagliardi, May, McCright, Tlusty & Varela (2009), Solid State Drive (SSD) storage devices have several benefits over traditional hard disk drives (HDDs). Anderson et al (1999) further noted that with no rotational or seek time delays, SSDs have the potential to deliver considerably better I/O performance than HDDs. Pham & Emami (2012) have also pointed out that SSDs deliver reliability, performance, space, as well as energy efficiencies for data centers that run applications with greater input/output operations per second (IOPS) requirements. However, one of the greatest shortcomings of SSD is cost. Additionally, SSDs do not display warning signs before failing, and their reliability or longevity, as well as their long term performance is questionable (Pham & Emami, 2012).   Speed One of the primary advantages of SSDs is that they are faster. Pham & Emami (2012) have noted that HDDs have for long served as the main storage...
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