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SU IST 195 - Exam 1 Study Guide
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IST 195 1nd EditionExam # 1 Study Guide Lectures: 1 – 7Lecture 1 (January 14th) MOOCs massive-open online courses; millions of people can take online courses and learn skills showrooming consumers go into the stores to check out products and them buy them online; looking at online reviews or checking for prices online SOPA an act in 2012 that said that anything that holds any data that could be illegally accessed is penalized leading to the Internet Blackout of 2012 protest net neutrality there is a current debate over whether the Internet should be free? Many are fighting against paying for Internet speeds analytics/Big Data there is an information overload and we have to find a way to take this data and make it useful Lecture 2 (Jan. 21st)Facebook/Edgerank Facebook uses an algorithm to determine what will go onto consumers' news feeds affinity - how much does the post mean to the user weight - how likely is a post to be shared/drive engagement time decay - how recent is the post social media strategies forbusinesses companies use Twitter for customer services Facebook and Instagram are used for marketing organic vs. paid reach organic reach - whatever a company posts onto their social media willnaturally make their way to consumers' news feeds and naturally move down their news feed as time goes on paid reach - companies can pay the social media platform to boost their posts on consumers' news feeds Lecture 3 (Jan. 26th)Mark One first computer created by Howard Aiken in 1944 305 RMAC created in 1956 types of computers PC server mainframes - can handle hundreds or thousands of requests - count for 87% of the financial computing worldsupercomputer - not many of them out there - capable of handling a quadrillion requests in one second embedded computer - innovative however now things can be hacked, malfunctions - internet of things - everything is connected to the internet, "smart-" technology Moore's Law as time goes on technology advances and becomes cheaper wearable technology and 3D printing are becoming cheaper and moremainstream stackable transistor chips negate the theory on Moore's Law becoming obsolete Lecture 4 (Jan. 28th)cloud technologies Google Drive, Microsoft Drive, OneDrive, iCloud, Dropbox layers of the cloud these layers are the layers of responsibilities for cloud services IaaS - infrastructure services, the highest layer (allows you to put data away without buying new hardware when your traffic and data grows) PaaS - platform services SaaS - software services Amazon cloud services Amazon S3 - an SaaS by Amazon, simply storage Amazon EC2 - you can have physical servers for times you may anticipate hightraffic Lecture 5 (Feb. 2nd)Formulas preset functions in Excel (ex. SUM, AVG, IF statements, MIN, etc.) conditional formatting Excel gives us the ability to format/highlight cells based on their value delimited files file type used when exporting data into new software and database documents VLOOKUPs Excel search that retrieves information from a database based off an identifier pivot tables enables you to quickly analyze and summarize large amounts of data sparklines small charts that analyze the data within a row of information operator precedence functions work on the PEMDAS operation to calculate Lecture 6 (Feb. 4th)Big Data any amount of data over 10TB Four V's veracity, velocity, variety, volume types of big data unstructured, semi-structured, structured, geospatial parallel computing many computers work together to answer a problem at the same time MapReduce, Hadoop, Databricks MapReduce is the algorithm by Google used to process data (via parallel computing) the results go to Hadoop (Yahoo's project) Databricks is a new rival algorithm for MapReduce (supposedly faster) and it is compatible with Hadoop Lecture 7 (Feb. 9th)stenography hiding a message with in another message cryptography using math algorithms to encrypt a message - Kryptos is a mysterious wall (artwork) at the CIA HQ symmetrical key vs. asymmetrical key asymmetrical cryptosystems requires two keys to encrypt and decrypt the message, this is much more secure than the one key symmetrical system multifactor authentication using something you know, you are or you use to help protect yourself beyond the username/password Bonus Question: Syracuse had a major league baseball team in 1879. What was the name of theteam? Answer: Syracuse StarsBring a pencil, eraser and your student ID 25 MC questions and one bonus question from Rubin's Twitter


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SU IST 195 - Exam 1 Study Guide

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