what...? how is this a question??
Answer:
i think its b
Explanation:
i did the test and got it right
B. Loosening the drain plug with a screwdriver
<span>Arrival protocols are the type of data protocols that convert data into standard formats that can be used by applications, such as email, Web browsers and Skype</span>
Answer: False
Explanation:
This means that the mappings between the two schemas may be specified in either one of these languages.In most relational DBMSs today, there is no specific language that performs the role of SDL. Instead, the internal schema is specified by a combination of functions, parameters, and specifications related to storage. These permit the DBA staff to control indexing choices and mapping of data to storage