What distinguishes the root of a red-black tree?
a. it is red
b. it is either red or black, but will have 4 children
c. it is either red or black and has exactly 1 child
d. it is black
d. it is black
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A chart that illustrates the relationship of each part to a whole is called a ________
A) pie chart B) bar chart C) line chart D) column chart
Telecommuters should use a securable operating system that requires password authentication.
Answer the following statement true (T) or false (F)
Xonex is a teleservices organization. It has branches all over Canada and a few across the United States. It hosts a company-wide seminar on employee rights, payroll processing, and tax issues in Ontario. All the branches of Xonex have around thousand employees, each. Which of the following collaboration tools will be most appropriate for Xonex to use for the seminar?
a. Presence information b. Instant messaging c. A podcast d. A Webcast
Which is true about the CSMA/CD media access method?
A. collisions can't be detected so they are avoided B. the hidden node problem makes it unsuitable for wireless networks C. all stations wait a random amount of time after the medium is clear D. it uses frame acknowledgement