Two common signaling protocols utilized in the VoIP network are ________ and ________
Fill in the blank(s) with correct word
MegaCo, SIP
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Digital forensics combines skills from a number of disciplines but has its roots in the two fields ____________________ and ____________________.
Fill in the blank(s) with the appropriate word(s).
When an operator needs to move a backhoe through a blind area, and there is no spotter, the operator must _____.
a. blow the horn before moving the backhoe b. move the backhoe very slowly through the area c. not operate the equipment d. maintain a steady speed while moving through the area
A flex-fuel vehicle burning E85 (85% ethanol) gets ________ fuel milage when compared to straight gasoline
A) The same B) Less C) Twice as much D) More
How does the reversing valve switch a heat pump between heating and cooling modes?
a. It reverses refrigerant flow through the compressor. b. It causes both check valves to allow refrigerant flow to the indoor coil. c. It causes both metering devices to meter refrigerant. d. It reverses refrigerant flow through the indoor and outdoor coils.