Answer:Answer:
TRUE
Explanation:
SATCOM in the Ku- and Ka- bands, as well as EHF systems are adversely affected by rain (the higher the frequency, the greater the effect) because one of the factors that affects availability in a satellites is rain. Higher frequencies in Ka-band (30/20 GHz), rain can have a very large effect that simply cannot be overcome at the usual levels of availability.
Rain reduces the quality of signals by interfering with the signals thereby, reducing their strength and quality.
Therefore Rain can not only degrade a satellite's signal, it can also cause a complete outage of the satellite's.
Answer:
a) Speedup gain is 1.428 times.
b) Speedup gain is 1.81 times.
Explanation:
in order to calculate the speedup again of an application that has a 60 percent parallel component using Anklahls Law is speedup which state that:
Where S is the portion of the application that must be performed serially, and N is the number of processing cores.
(a) For N = 2 processing cores, and a 60%, then S = 40% or 0.4
Thus, the speedup is:
Speedup gain is 1.428 times.
(b) For N = 4 processing cores and a 60%, then S = 40% or 0.4
Thus, the speedup is:
Speedup gain is 1.81 times.
Answer:
Hot-add
Explanation:
The computer system is a electronic device that is used to perform computational task on input data for a pre-dertermined result. The components of the computer is divided into hardware and software components.
The hardware components are the physical parts of the computer system, while the software component are the instructions that runs the system.
The RAM is a physical component that provides memory for running current activities on the monitor screen. When it is removed or faulty, the screen goes blank. To add more RAM memory to the system while the system is on, activate the hot-add memory settings.
