Show the average cost of a course with no prerequisites (1195)
What will be an ideal response?
```
SELECT AVG(cost) "Average Cost"
FROM course
WHERE prerequisite IS NULL```
Computer Science & Information Technology
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Indicate whether the statement is true or false
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A user's computer is unable to access the Internet. Which of the following utilities can a technician use to determine if DNS is working?
A. nbstat B. arp C. nslookup D. ipconfig
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Which of the following is a fiber connector that is slightly smaller than a standard copper network cable connector?
A. BNC B. GBIC C. MT-RJ D. SC
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