Question: 1. The main Innovation and Facebook's Haystack system was A. Increasing data storage capacity by upgrading Hardware B. Increasing wystem reliability by ditional replication C.

1. The main Innovation and Facebook's Haystack
1. The main Innovation and Facebook's Haystack
1. The main Innovation and Facebook's Haystack system was A. Increasing data storage capacity by upgrading Hardware B. Increasing wystem reliability by ditional replication C. Increasing system reliability by upgrading Hardware D. Faster data retrieval by reducing disk access frequency E fuster data retrieval by upgrading Hardware 2. Facebook multi-factor authentication is designed to throw out an attacker who A Has obtained your account password B has already logged into your account C launch is a denial-of-service attack D. Send you links to malware-infected sites E is using a mobile device 3. Why would businesses not typically run stick applications on thin clients? A Businesses no longer use thin clients B. A thick application cannot run on a client machine C. By definition, a thin clients counts run a thick application D. Thick applications are too expensive E The applications could only have lower resource requirements 4 Which of the following is not part of a typical cloud computing system? A. users accessing the cloud system through the same webpage B. assignment of new connections by load balancing algorithms Cusers selecting a specific server to run their applications D. automatic backup of application data E none of the above all are included in a typical cloud computing system 5. Compared to an entire file stored on a single hard disk, RAID device using both mirroring and striping would A faster loading (due to striping) but less reliability (due to mirroring) B. similar performance for load speed and reliability Cfaster londing (due to striping) and better reliability (due to mirroring) D slower loading (due to striping) but better reliability due to mirroring) E slower loading (due to striping) and less reliability (due to mirroring) 6 What distinguishes dickbait from non-clickbaiteline content A clickbait pages have ads, non-clickbait pages de B clickbait pages have malware, non-clickbait pages de C most social media sites black sharing clickbait links D. all of the above E none of the above 7. A brute force attack on a password protected system would A trick users into giving up their password B. bribe a security employee to get a password C. attempt every posible password D learn about users to pass their passwords Esteal a password through keystroke logging 8. What would be the probable consequences of replacing a database stored on disk drives with one maintained in RAM A. it would operate faster but significantly increase hardware costs B. it would operate slower but significantly reduce hardware costs C it would operate slower and significantly increase hardware costs D. it would operate at about the same speed and cost E. it would operate faster and significantly reduce hardware costs 9. A phishing attack on a password-protected system would: A trick users into giving up their password B. bribe a security employee to get a password C. attempt every possible password D. steal a password through keystroke logging E. Learn about users to guess their passwords 10. The main innovation in Facebook's Haystack system was: A. faster data retrieval by reducing disk access frequency B. increasing system reliability by additional replication C. faster data retrieval by upgrading hardware D. increasing data storage capacity by upgrading hardware E. increasing system reliability by upgrading hardware 11. A business storing all its data on hard drives would most likely supplement those hard drives with RAM (eg, an in-memory grid system) in order to A.roduce hardware costs B. increase storage capacity C. speed response times D all of the above E none of the above 12. The difference between random access memory (RAM) and sequential access memory (SAM) is: A. memory access times are constant for SAM but not for RAM B memory access times are constant for RAM but not for SAM C. RAM is read-only but SAM is not D. no practical difference, what used to be called SAM is now called RAM E. SAM is read-only but RAM is not 13. What advantage do relational databases typically have over NoSQL databases! A the database contents are always encrypted B is easier to change whar data are stored in tables C. they store data, especially image data, more compactly D. they can easily run queries involving multiple tables E. they can store text and numeric data

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