Narrative devices, use this terminolgy, it shows the examiner that you know what your talking about.
Story arc: has a beginning, middle and end, and has a resolution.
Dual narrative: where two sides of the story are given, and the text alternates between the two. There is a purpose to this, is it to convince the reader of one side or the other?
Flash-back: Short stories that preceded the main story, there purpose is to add more context or an explanation why something is happening in the main story.
Circular narrative: the last line of the text takes you back the beginning.
