In LANs, _________ manage traffic congestion by employing a flow-control mechanism to direct traffic to alternative paths and provide protocol conversion when needed
A. gateways
B. formats
C. switches
D. routers
D
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When work involving exposure to electrical hazards is considered, the energized electrical work permit process is used to _____.
a. conduct shock and arc flash risk assessments b. supplement the pre-job briefing c. obtain signatures for approval d. plan and authorize the work
A strategy can state both "what to do" and "what not to do."
Answer the following statement true (T) or false (F)
For a non-blackbody object, the emissivity value __________ 1.
A. is B. is not
Which of the following is true regarding the sum of three internal angles of a triangle?
A. They will always add up to be exactly 180 degrees. B. The angles, added together, will never be greater than 180 degrees, but are sometimes less than 180 degrees. C. The angles will all be the same size. D. both A and C