1. 3 times the light voltage, ie., 3*0.5 = 1.5V
2. Total R = 3*25 = 75Ω, V=1.5V, I = V/R = 1.5/75 = 20 mA
3. A 1.5V battery (e.g., an AA battery) with a charge of at least 20mAh. AA batteries should be able to handle this easily.
Answer: E) The CPU executes the instruction by performing ALU operations.
Explanation: The execution cycle is of three stages namely; fetch, decode and execute. These are the functions that the CPU carries out from the time of boot-up up until it's shut down.
At the fetch stage, the computer retrieves program instructions from its memory register, at the decode stage; the decoders interprets the instructions from the instructions register and then the next stage will be the executions, at this stage; the interpreted instructions are then passed to relevant function units of the CPU to carry out the required instructions.
E.g mathematical and logic functions are passed on the ARITHMETIC AND LOGIC UNIT(ALU) to perform.
Bachelor's degree would be next in line .. im taking the test as well im going with A.
Answer:
Fiber-optic cable
Explanation:
Before the cable industry transitioned to fiber-optic cables, for many years, the standard cables used for telephone, cable, and internet communications were coaxial cables. The transition was made possible because the architecture of the fiber-optic cable came with a higher capacity, more extensive bandwidth link. Unlike the coaxial or the twisted pair cable, the fiber-optic is made from glass strands that transmit light signals much quicker and to greater distances. This makes fiber-optic cables the fastest high capacity data transfer link than any other cables to ever exist.
Answer:
TCP is typically used when you need a connection-oriented, reliable communication channel.
Most internet protocols (like HTTP, POP, MQTT, ...) have TCP as their underlying protocol.
Only when speed is important and it is acceptable to lose some of the data, you would consider simpler protocols like UDP.
