Which codec is used to compress audio files, allowing them to maintain excellent quality while being reasonably small?

In the file name, Resume.docx, docx is the ________, indicating the file type

Fill in the blank(s) with correct word

If a program happens to reference words repeatedly from two different blocks that map into the same line, the blocks will be continually swapped in the cache, and the hit ratio will be low, is a phenomenon known as __________.

A. tagging B. split caching C. cache missing D. thrashing