CSIT 120 EXAM 2 QUESTIONS AND ANSWERS GRADED A+ ALREADY PASSED

CSIT 120 EXAM 2 QUESTIONS AND ANSWERS GRADED A+ ALREADY PASSED Gigabytes 1 Terabyte= 1000 Gigabytes - Answers 1. What are typical units that storage is measured in? What is the relationship between the units. Which is smaller or larger Elastic leasing of pooled resources - Answers What is the Cloud? BIOS(Basic Input/Output System) 1. BIOS test Hardware 2. BIOS looks up Master Boot Record 3. Operating System is loaded into RAM via Secondary Storage (provides GUI) 4. Instructions sent to CPU via Data Bus - Answers 2. Know the different computer components and how that interact including booting (starting up) a computer - The picture with all of the blocks MBR shows where the Operating System is - Answers Master Boot Record does what? What parts of a computer do we consider hardware? - Answers Monitor, keyboard, mouse RAM - Answers Any running program is always in where Magnetic Disks - Answers The operating system is in where Magnetic Disk and Optical Disk - Answers What is part of secondary storage? Process whereby multiple (guest) operating systems (OS) share the same hardware on a single physical machine called the host - Answers 3. What is virtualization - The difference between a Host OS vs a Guest OS A Thin client does not require installation or updates and is easier to maintain (google docs). A thick client must be installed and requires updates along with being harder to maintain but having more perks (Microsoft Word). - Answers 4. What are the differences between thin and thick clients Desktop: Microsoft windows, mac operating system Servers: unit servers, lenix (open source, but comes with no support) Mobile: embedded operating systems like mac IOS, android google - Answers 5. Know the different OS for desktop, mobile, and servers One of a kind (IRS), vertical (food&beverage industry), Flat (Microsoft office) - Answers 6. What are the different categories of application programs software installed on read-only memory (can be changed and updated like a phone which you can't change back) EX: updating your cell phone - Answers 7. What is firmware Open source software is free software you can use for your business. Advantages: Generally free, always updating Disadvantages: Less "user friendly", less support for problems - Answers 8. What is open source software, what are some system and application software examples, is open source viable? In other words what are the advantages and disadvantages Even though a database is more complex, it has multiple themes which is beneficial EX: you can have someone's doctor's visits, student statuses, email sent to prof. * a single themed sheet would only have "status" - Answers 1. Why would one use a DB (more complex) over a simple spreadsheet 1. Primary Keys (located on left) uniquely identify one record (row) from another. Every table has to have a primary key 2. Foreign keys (located on right) are copies of primary keys in other tables that link the tables