Computers contain which of the following toxic ingredients? (Choose all that apply.)
lead
mercury
arsenic
cadmium
lead
mercury
arsenic
cadmium
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Which of the following statements is false?
a. With a BufferedOutputStream each output operation is directed to a buffer large enough to hold the data of many output operations. Transfer to the output device is performed in one large physical output operation when the buffer fills. b. With a BufferedOutputStream, a partially filled buffer can be forced out to the device at any time by invoking the stream object’s force method. c. With a BufferedInputStream, many “logical” chunks of data from a file are read as one large physical input operation into a memory buffer. d. With a BufferedInputStream, as a program requests data, it’s taken from the buffer. When the buffer is empty, the next actual physical input operation is performed.
The most common technique used for protecting a critical section in Linux is the _______ .
A) ?signal ? B) ?atomic bitmap operation C) ?atomic integer operation ? D) ?spinlock
What type of search engine searches other search engines?
A) Subject-oriented B) Metasearch C) Boolean D) Keyword
If a window does not contain any forms, ____.
A. the forms[] array is empty B. the forms[] array contains one element C. the forms[] array is undefined D. no JavaScript can be used on the page