Answer: A. > interesting.txt
Explanation: From the command line, one can perform numerous tasks from navigating into a directory, creating a new directory, deleting files, create files, modify files and so on using simple commands. In the scenario above, after using a common which is used to produce an output on the screen, such as the 'echo' command, one may wish to save the file giving the user the ability to access the file later. Since it is stated the file name 'interesting.txt' given to the file does not currently exist, appending the sign > saves the file. If the filename already exists, it will overwrite the existing content.
Explanation:
Both perform almost the same function of storing data, performing numerical calculations, formating cells, and to generate reports.
However, when dealing with data that is short term (requiring less updating) Microsoft Excel is recommended as it provides easy spreadsheet functions. Access on the other hand is a more complex application for data analysis involving constantly changing data values that are long term based. Access allows for efficient data analysis using complex tools such as import module, automated queries etc.
C. custom slideshow because this is where you can customise everything you do eg. pen colour, don't etc.
Answer:
float(distance) / speed
Explanation:
Given the variable <em>distance</em> and <em>speed</em> in a program that hold a integer value respectively. We can perform the division between the two variable using / operator. Since both distance and speed are integers, we need to convert one of them to float type to perform the floating point arithmetic. Otherwise the division output will be rounded up to the nearest integer which is not a desired result.
Answer:
screen resolution
Explanation:
The screen resolution indicates the number of pixels that can be displayed at one time on a given screen. For example, it could be numbers like 1920x1080, 1600x900 and so on.
Viewing angle has nothing with the pixel count, although viewing port would. Color depth concerns the number of colors you can display at one time. Pixel density is the concentration of pixels, like in Apple's retina display, that increases the number of pixels in the screen, but that doesn't give you the information on how many there are.
