Describe the purpose of each component of a wired lan. describe the major lan protocols. your response should be at least 200 words in length. you are required to use at least your textbook as source material for your response. all sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

Donald is studying the eating habits of all students attending his school. he samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. he then collects data from the sample. which type of sampling is used? select the correct answer below: systematic sampling convenience sampling stratified sampling cluster sampling