Answer:
Dubbed DVB-UHDTV comes with two standards, which are known as UHD-1 (4k) and UHD-2 ( 8k). We are concerned with 3840 x 2160 and that is 4k. It has a frame rate of 60 Hz, and the color depth is 30 bit/pix. So the bit rate = no. of pixels in a frame x frame rate x bit depth
= 3840 x 2160 x 60 x 30 bit/ sec
=14929.92 Mbit/sec.
Explanation:
We need to find the number of bits in a frame, which is frame size x bits per pixel x number of pixels, where bits per pixel is bit depth. And for bit rate, we need to multiply this by frame rate, and the number of frames being processed per second, and which is the frequency. The rest is as explained in the answer section.
Answer:
Network switch has been disconnected or switched off
Explanation:
An organization networking can be done by using several switches, routers, modems, etc. A network switch works between modem and systems, connecting the systems to the network.
A network switch is a multi-port switch that connects multiple devices to the network. mostly every floor has a network switch connected with the floor systems.
When a system is connected to switch, its indicator light on NIC is active. but as per the scenario, no system has active indicator lights on NIC, which means that there is some problem with the switch or switch is powered off.
Answer:
Hydrogen.
Explanation:
Hydrogen is the simplest element that exists. The symbol for the chemical element Hydrogen is "H" and it is a colourless, tasteless, odorless, and highly flammable gas.
Hydrogen is a chemical element found in group (1) of the periodic table and as such it has one (1) electrons in its outermost shell. Therefore, Hydrogen has an atomic number of one (1) and a single valence electrons because it has only one proton and one electron in its nucleus.
Additionally, all stars are made up of Hydrogen.
A star is a giant astronomical or celestial object that is comprised of a luminous sphere of plasma, binded together by its own gravitational force. Stars are typically made up of two (2) main hot gas, which are Hydrogen (H) and Helium (He).