44. Two type of memories 'RAM' and 'ROM' are part of?
A. backup memory
B. main memory
C. shorter memory
D. long-term memory
45. __refers to the physical or logical arrangement of a network.
A. Data flow
B. Mode of operation
46. A __________ is anything that can cause harm.
47. The phrase that describes viruses, worms, Trojan horse attack applets, and attack scripts.
48. In this topology there is a central controller or hub
49. Data communication system spanning states, countries, or the whole world is called?
D. None of the above
50. What is the default extension of Excel files?
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