In relational databases, there is a concept known as ________ that ensures that data cannot be entered into a related table unless it first exists in a primary table
Fill in the blank(s) with correct word
referential integrity
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A software implementation of chess was developed by GNU and is avail- able for free. How can you use the Internet to find and download this program?
What will be an ideal response?
Suppose that you have the declaration:int num = 94;double x = 73.92;String str = "Programming";What is the output of the following statements?System.out.println("123456789012345678901234567890");System.out.printf("%5d%6.2f %15s%n", num, x, str);
A. 123456789012345678901234567890 94 73.92 Programming B. 123456789012345678901234567890 94 73.92 Programming C. 123456789012345678901234567890 94 73.92 Programming D. 123456789012345678901234567890 94 73.92 Programming
In a cold site there are only rudimentary services, with no computer hardware or peripherals.
Answer the following statement true (T) or false (F)
A _____ searches multiple search engines at one time to match a query.
A. URL B. Web directory C. metasearch engine D. search engine