What is meant by resolution, how is it measured.

Resolution is lines and pixels in simpler terms. A television or recorded video image is basically made up of scan lines. In films the full image is projected on a screen at once, a video is made up of rapidly scanning horizontal lines starting at the top and moving down to the bottom. These lines can be displayed in two ways. The first way is to split the lines into two fields in which all of the odd numbered lines are displayed first then all even numbered lines are next, in essence producing a complete frame. This is called interlacing or interlaced scan. 

The second method is used in digital video recording, digital TVs and computer monitors is referred to as progressive scan. This allows the horizontal (odd&even) lines to be displayed sequentially. 

These points just mentioned convey the vertical resolution  

Horizontal resolution is the number of dots displayed within each line it can vary according to the input source of the ability of the TV monitor itself. 

The resolution is measured in picture elements, or "pixels" for short.

What is meant by frame rate in video?

What is meant by frame rate in video?
The frame-rate says how many images of a movie are displayed every second a movie is played.

Are all videos/movies the same frame rate, explain your answer

No, not all videos and movies are the same frame rate. For example if a interview is being filmed there is not much movement if it is a lower frame rate it would not have a major effect on quality, on the other hand if a football match is being filmed there would be a lot of movement so   a lower frame rate would have an effect on quality. So the frame rate of a video/movie really just depends on what is being filmed. 

What are some advantages of digital video

What are some advantages of digital video Better learning as moving pictures with sound are more effective than stills. Footage can be updated or changed with ease. Digital video adds a whole new dimension to presentations as it can be easily incorporated into computer presentations. With network capabilities, presentations can be distributed easily. Since digital video clips are basically files, they can be integrated into many databases just like text or numeric fields for useful applications. For example, video clips of historical/educational/marketing events or trips can be integrated with more mundane information to provide a more interesting presentation.

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