1. In database jargon, cardinality refers to the number of associations that can exist between two record types. Identify the three types of relationships that deal with cardinality and explain each one.  Your response should be at least 150 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.

2. How vulnerable are databases and how can they be secured? 
Your response should be at least 150 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

3.How does a query language like SQL work? Give brief descriptions of commands, parameters, and record searches.
Your response should be at least 150 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.