Which wave-division multiplexing technology uses uncooled lasers to reduce cost?

If a queue is implemented as the ADT list, which of the following queue operations can be implemented as list.get(1)?

a) enqueue() b) dequeue() c) isEmpty() d) peek()

Case-Based Critical Thinking Questions

? Case 1: LuvUrPetThe database for a pet supply company includes the following table, named tblCollar, that contains product data for pet collars. The ItemDesc and Color fields contain text. The ItemNum, Price, and Quantity fields contain numbers. ItemNum ItemDesc Color Price Quantity 2358 leather studded collar black 30.00 35 2693 leather collar brown 25.00 25 3547 striped collar red 20.00 75 3855 striped collar blue 15.00 42 3764 striped collar green 15.00 48 5782 solid collar pink 12.00 36 5785 solid collar red 12.00 10 5787 solid collar blue 10.00 15 An application using the dataset should allow a user to type in a price to use to query the dataset. Which of the following clauses would allow a user to select the records for collars with a price of 15 or more? A. WHERE Price = 15 B. WHERE Price Like 15 C. WHERE Price >= @Price D. WHERE Price < @Price