Answer:
Redundant paths can be available without causing logical Layer 2 loops.
Explanation:
- Spanning Tree Protocol is used to allow redundancy in the Layer 2 switched networks without creating cycles/circles also called loops.
- These loops are called physical loops.
- When two parts of the switched network are connected via two or more Layer 2 switches this result in a loop.
- This affects the performance of the network as the result of broadcast packets flooding.
- STP puts one port of the switch to forward mode and the rest of the ports within the same part of the network to the blocking mode to avoid broadcast packet flooding. STP puts all the ports that are allowing redundant paths to block mode and the one port that is left after this is placed in forward mode.
- Spanning Tree Algorithm is used by STP to determine the optimal path of switch to the network.
- Bridge Protocol Data Units are used to share the information about the optimal path determined by the spanning tree algorithm with other switches.
- This information helps STP to eliminate the redundant paths.
- So this is how STP tracks all the links in the switched network and eliminates redundant loops by allowing only one active path to the destination while blocking all other paths.
A) Records of the dates and quantities of refrigerant recovered and recycled are unnecessary
Answer:
the answer is "D". Park
Explanation:
Automatic transmission fluid is a oil use in vehicles to keep the gears working normal.
Checking the Automatic transmission fluid (ATF) with the engine running is necessary to warm up the fluid so that the original level of the fluid is picked correctly when using a dipstick or a rod, hence the reason for normal operating temperatures.
Virtually, nobody can check a vehicle at motion because a vehicle only move at First, second, third, to fifth gear. the temperature of a moving vehicle increases as the engine works. A normal temperature is needed to check the ATF, and the best time recommended is before moving the vehicle (immediately after starting the engine).
Therefore, the best gear position recommended for checking automatic transmission fluid is at PARK.
Answer:
Battery pack as if its used a lot it needs to be charged