If a file opened for reading does not exist, the fopen() function returns the NULL address value.
Answer the following statement true (T) or false (F)
True
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There is a ____________ relationship between a primary key and its corresponding foreign key
a) one-to-one b) foreign c) one-to-many d) structural
Jannette has been experiencing slow performance on her computer. Today she received an error message saying that an update to her antivirus program failed. When she checked the update history, she discovered that the program had not been updated for two weeks. She restarted her computer and noticed that a file she was working on was no longer available. She also noticed that the network connection was sending data, even when she was not connected to the Internet. ? What should Jannette do first on her computer?
A. Run anti-malware program. B. Roll back to a previous date. C. Quarantine the system. D. Remediate the infected system.
Infrared can be broadcast in a single direction or in all directions, using a(n) ____ to transmit and a photodiode to receive.
A. antenna B. LED C. laser D. satellite dish
The decrement operator is ==.
Answer the following statement true (T) or false (F)