A customer reports that their computer is displaying operating system not found while booting. The technician confirms that the computer booted fine the previous day and that no devices were added. The technician also confirms that no software changes were made to the system from the previous day. Which of the following is the problem?
A. The network cable is unplugged.
B. A diskette was placed in the disk drive.
C. The keyboard is unplugged.
D. The system has been infected with spyware
Answer: B. A diskette was placed in the disk drive.
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The empty statement is represented by placing __________ where a statement would normally be.
a) empty b) ; c) null d) :
Which of the following statements is true of retargeting?
A. It is targeted at approximately 50% of Website visitors who shop using smartphone applications. B. It employs personalized ads to direct shoppers back to a retailer's Website they previously abandoned. C. It attempts to change buying habits of Web shoppers to get them to consider products they have never considered purchasing before. D. It attempts to change buying habits of Web shoppers by getting them to visit Websites they have not visited before.