Function os.wait returns a two-element tuple that contains the________and the child’s________—an integer that indicates the state in which the child process exited.

a) child’s pid, exit status.
b) child’s pid, exit code.
c) parent’s pid, exit status.
d) None of the above.


a) child’s pid, exit status.

Computer Science & Information Technology

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____ sounds are useful when you need the animation in your movie to coincide with the sound.

A. Event B. Stream C. Action D. Index

Computer Science & Information Technology

_________ involves terrorists launching attacks via the Internet. A. Cyberterrorism B. Virtual terrorism C. Digital terrorism D. Socioterrorism

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology

Which statement is TRUE regarding link encryption?

A. Packets are decrypted at each device. B. The user can select exactly what is encrypted. C. It only affects the performance of the sending and receiving devices. D. Packet headers are not encrypted.

Computer Science & Information Technology

Alan is considering the use of new identification cards in his organization that will be used for physical access control. He comes across a sample card and is unsure of the technology. He breaks it open and sees the following internal construction. What type of card is this?

A. Smart card B. Proximity card C. Magnetic stripe D. Phase-two card

Computer Science & Information Technology