CS 101 Test 2 Review

1. An IF function in Excel has 3 parts: less than, greater than and equal to has 3 parts: condition, true and false has 4 parts: conditions, A, B and C has 2 parts: condition and test

2. A macro is a small program attached to a document a recording of actions that can be played back later vulnerable to virus attacks all of the above

3. A clustered column chart has a bar for each value charted, with height of bar proportional to the value represented represents the percentage of a whole that each value is shows the relationship of one set of values to another set of values

4. A file that is JPEG format can represent 16 million colors is good for charts and simple colors can be compressed a lot if zipped only works on PC machines

5. A CLI is An interface where the user must remember the commands and filenames, not friendly An interface using a pointing device, icons, drop- down menus, a visual metaphor A part of an OS which handles the memory in the computer A kind of file format which allows for animation and simple colors

6. An operating system made by Bell Labs, open source, free, stable, is Windows Unix Linux iOS Android

7. A lossless compression method would Be able to reproduce exactly the thing that was compressed (when decompressed) Be used by zipping programs Be used by jpegs Be used by mp3s A and B

8. DRM Is considered anti-piracy Is an obsolete protocol for email Is used on most audio files these days Can be used to record actions for later playback

9. Multitasking Requires more than one CPU Can only handle 3 tasks at a time Is a simulation (an illusion) if done on one CPU Is not available yet, is still under research

10. A macro in Excel will always be in a sheet with “macro” in the file name an extension of xlsm a chart numbers

11. The GIF format Is best used to display pictures with a limited selection of colors and straight lines Was created by IBM Is a descendent of the PNG format Can hold more than one frame, so there is a limited form of animation possible A and D

12. A speaker is an input device an analog to digital converter a digital to analog converter able to reproduce sounds precisely as they were originally heard

13. Inserting a row or column into a spreadsheet has to be done one cell at a time will change any formulas which exist in the sheet only if they use absolute references will change a range in a formula if the insertion is inside the range or to the left of or above the formula with the range is not allowed once data has been entered into the sheet

A. A loop / repetition B. A branch / selection C. A module 14. If the rabbit is facing the door rabbit.move (two meters) else rabbit.turntoface(door) This is an example of which control structure? A. A loop / repetition B. A branch / selection C. A module D. A sequence

15. CPUs understand A. English B. High level languages C. Machine language D. pseudocode

16. A syntax error happens when The program tries to divide by zero The programmer misspells a keyword in the language The programmer multiplied by 10 when they mean to multiply by 100 The program tries to open a file that does not exist

17. In Alice, ___ would be a method. A penguin Penguin.talk Penguin.isbelow A mouse click None of the above

18. An algorithm is a low-level language translator a set of instructions to solve a problem a compiler something only programmers use

20. In Alice it’s hard to Make a syntax error Use a loop Erase a statement from a program Run a program

21. File formats which use lossless compression are: (choose all that are correct) JPEG GIF PNG MP3 ZIP WAV