Please Help, Thank you!

-State whether- True or False :

a) Bluetooth uses Radio waves...
b) White hackers steal confidential information...
c) Hub transfers send the incoming data to the desired
destination only...
d) Infra-red signals are suitable for long distance data
communication...
e) HTTP is used in between a web server and a web browser...
f) LAN (Local Area Network) is the network exists around a person...
g) Coaxial cable consists of a copper conductor (wire)...
h) Microwave antennas are located at a substantial height above
the ground level...
i) Firewall can be implemented as a software, hardware or a
combination of both...

Please, please help me!♡´・ᴗ・`♡

j) Star topology is complicated to set up...

Answers

Answer 1

Answer: Devices connected in a Bluetooth network communicate with each other using ultra-high frequency (UHF) radio waves. These are electromagnetic waves with frequencies around 2.4 gigahertz (2.4 billion waves per second). UHF waves of different frequencies are used in microwave ovens, GPS systems and many other devices, White hat hackers employ the same methods of hacking as black hats, with one exception- they do it with permission from the owner of the system first, which makes the process completely legal. ... There are even courses, training, conferences and certifications for ethical hacking. A hub connects multiple computers together in a Local Area Network (LAN). All information sent to the hub is then sent through each port to every device in the network.

Hubs are unable to tell one computer from another, so they receive information on one port and then blindly forward it to all other ports — whether it was intended for those computers or not.

So even though you may only want to send information to one other computer, if you have five total computers on your network, then there will be four other computers receiving data that wasn’t intended for them. Showing results for are Infrared signals are suitable for long distance data communication..

Search instead for are Infra-red signals are suitable for long distance data communication..

Infrared laser systems can also be used for long-range communication (up to about 2.4 kilometres), with a maximum projected data rate of 16 Mbps. ... An infrared transmitting device, either a light-emitting diode (LED) or a laser diode, converts an electrical signal to an optical signal.

Web Browser is a software which is used to browse and display pages available over internet whereas web server is a software which provides these documents when requested by web browsers. ... Web browser sends an HTTP Request and gets a HTTP Response. Web server receives HTTP Request and sends a HTTP Response.

Simple LANs generally consist of cabling and one or more switches. A switch can be connected to a router, cable modem, or ADSL modem for Internet access. A LAN can include a wide variety of other network devices such as firewalls, load balancers, and network intrusion detection.

Coaxial cable, or coax (pronounced /ˈkoʊ. æks/) is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric (insulating material); many coaxial cables also have a protective outer sheath or jacket.

Terrestrial microwave- The most common type of microwave antenna is the parabolic “dish.”A typical size is about 3 m in diameter. The antenna is fixed rigidly and focuses a narrowbeam to achieve line-of-sight transmission to the receiving antenna. Microwave antennasare usually located at substantial heights above ground level to extend the range betweenantennas and to be able to transmit over intervening obstacles. To achieve long-distancetransmission, a series of microwave relay towers is used, and point-to-point microwave linksare strung together over the desired distance. Used in long haul telecommunicationsservice, as an alternative to coaxial cable or optical fiber.

You can implement a firewall in either hardware or software form, or a combination of both. Firewalls prevent unauthorized internet users from accessing private networks connected to the internet, especially intranets


Related Questions


Select the correct answer from each drop-down menu.

What does a computer connect to in a VPN?

In a VPN, a computer connects to a ____
and then changes the ________ of your computer.

Answers

Answer:

"In a VPN, a computer connects to a server and then changes the Internet Protocol of your computer" -urgurlmarie

Source: https://brainly.com/question/19665457, -urgurlmarie

Opinion: You're answer is correct, I'll take this step by step but by connecting your PC to an server like OpenVPN, or a paid VPN service such as Nord VPN. You are changing your Internet Protocol of your PC to that servers I.P. Address.

5. What is a domain name used for?​

Answers

Answer:

Domain names serve to identify Internet resources, such as computers, networks, and services, with a text-based label that is easier to memorize than the numerical addresses used in the Internet protocols. A domain name may represent entire collections of such resources or individual instances.

Explanation:

*Hope this helps*

can someone please help its late

Answers

Answer:

The correct answer to this question is given below in the explanation section.

Explanation:

The labels to AS engine are given below from left to right respectively.

FanCompressorCombustionTurbineMixer Nozzle

Fan: Drawer air into the engine

Compressor: Compressor spins the air very fast. This sequeezes or compresses the air

Combustion: Air and fuel are mixed together and ignited in the combustor and it gets super hot and gas expanded.

Turbine: The hot gases enter the turbine, causing the blade on it to spin.

Mixer: The mixer combines the hot air with outside air in the engine. This reduces the heat and noise that is coming from the engine.

Nozzle: nozzle is where the exhaust is coming out from the engine, creating thrust. It works according to newton's third law.

Some people worry that there won’t be enough jobs in the future because computers will be able to do everything better than people can. Do you think that will happen? Why or why not

Answers

I think this will happen brigade people are already lazy at it is and will depend on computers to help them so that’s why their won’t be any future jobs

Answer:

what they said

Explanation:

:)

what does good time management mean​

Answers

Answer:

When you are consistent with your work and not wasting time

Explanation:

Time management to me means using your time wisely and thing you have to get done do those things first before doing something that is not a must. Being wise with your time will help you complete goals and more in life.

Have a good day and a merry Christmas
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