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Anastasy [175]
3 years ago
12

According to the Doppler effect, objects moving away from Earth would have a

Computers and Technology
2 answers:
Stells [14]3 years ago
7 0
<span>According to the Doppler effect, objects moving away from Earth would have a redshift.  </span>A <span> redshift means that every wavelength becomes longer and if we observe Hydrogen lines that are at a certain position, those will become redshifted.</span>
vodka [1.7K]3 years ago
5 0

The correct answer is:

redshift.

Explanation:

Redshift and blueshift describe how light shifts approaching shorter or longer wavelengths as objects in space (such as stars or galaxies) move closer or removed away from us. The knowledge is key to charting the universe's expansion. Visible light is a spectrum of colors, which is clear to anyone who has observed at a rainbow.

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What is the benefit of using pre-programmed functions to analyze data?"
Murrr4er [49]

Answer:

A pre-programmed function is a section of code which is reusable to perform certain routine. One benefit of using a pre-programmed function to analyze data is the code redundancy can be reduced. The function is only written for once and it can be called to perform a specific data analysis whenever it is needed.

Besides, a pre-programmed function also offer consistent analytical output as all data are processed by a same analytical procedure in the function.  

5 0
2 years ago
You work for a company that does network cable installations. Your company has been contracted to pull out the existing CAT 3 wi
kicyunya [14]

Answer:

RJ-11 connector.

Explanation:

RJ-11 (Registered Jack-11) also known as the phone line or modem port is a network cable having twisted wire pairs and a modular jack with two, four or six contacts. It is generally used with telephones and modem.

Hence, the other connector type that can be used with CAT 3 installations is the RJ-11 connector.

5 0
3 years ago
sara has just started using the Internet. She would like to be more efficient . In 3-4, give sara some advice about how to be mo
natta225 [31]

Hello,

Well my advice for Sara when using the web would be 3 things.

1: Never tell anyone where you live,Your name, Or any other personal information.

This is important as it will keep you safe and others that are in your family.

2: Get anti virus hardware on your devise.

This will help to stop bad people, and bugs/glitches,this will also protect you from information thieves.

3: Make sure to keep your passwords saved on paper.

I know a lot of people use, google(ect.) to save there passwords to make everything easy, but a good way to never loss them is to wright them down.

Have a great day!



7 0
3 years ago
What is the process called that occurs when you start up your computer? A Download B Restore C Boot D Copy
inn [45]
Starting up your computer can also be referred to as "booting up" therefore, the answer is c
8 0
3 years ago
Read 2 more answers
Different network scenarios require the
Vladimir [108]

Answer:

a) Viruses

Explanation:

Vulnerability assessment is performed by variety of tools and these can be protocol analyzer, vulnerability scanner, Honeypots, port scanners, honey nets and banner grabbing tools.

Port scanners : they are used to scan the ports which can be exploited by attackers. Most of TCP/IP applications communicate using different ports and attackers can exploit these ports if they are found vulnerable. for example : ports like 80 and 443 are commonly used for HTTP and SSL communication. 22 is used for SSH and if they are open to world then it will allow attackers to use those to get the entry into the system.

Protocol Analyzers : They are used to analyze the packet captures. tools like wireshark, tshark, these tools will help user to decode HTTP/SSL/HTTPS/FTP/RSTP or any application protocols communication. this will help user to understand any unwanted or non-anticipated traffic.

Vulnerability Scanners : They are used to detect the vulnerabilities in the network or systems. these will help administrators to get the alerts whenever there are unanticipated activity. It will have two types of scanners one is active scanner and other is passive scanner. Active scanners will keep on sending probes at the fixed time slots and passibe scanners will be in listening mode all the time. These scanners will alert when a new nodes comes up or goes down or if any system gets compromised.

Honeypots and Honey nets : They are devices or softwares which are having limited security. These devices are made vulnerable purposefully so that attackers can try and attack.  This will help softwares to detect the attackers when they try to exploit these open vulnerabilities. They are deceptions created with purpose.

Banner grabbing Tools : These are tools which will capture the banner information like HTTP protocol version, underlying operating system, open ssl versions being used, server software and similar information. these are important as it will open up potential vulnerabilities in the underlying software. for ex : SSLv3 has a vulnerability known to world and can be exploited by anyone.

4 0
2 years ago
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