In estimating the accuracy of data mining, the true positive rate is option A) the ratio of correctly classified positives divided by the total positive count.
What is Data mining?Data mining is the act of sorting in or through a big data sets to know patterns and linkages that can help handle business problems via data analysis.
Note that in the case above, In estimating the accuracy of data mining, the true positive rate is option A) the ratio of correctly classified positives divided by the total positive count.
See options below
A) the ratio of correctly classified positives divided by the total positive count.
B) the ratio of correctly classified negatives divided by the total negative count.
C) the ratio of correctly classified positives divided by the sum of correctly classified positives and incorrectly classified positives.
D) the ratio of correctly classified positives divided by the sum of correctly classified positives and incorrectly classified negatives.
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You are the network administrator for a small organization. recently, you contracted with an isp to connect your organization's network to the internet to provide users with internet access. since doing so, it has come to your attention that an intruder has invaded your network from the internet on three separate occasions. what type of network hardware should you implement to prevent this from happening again
The type of network hardware that you should to implement so as to prevent this from happening again is Firewall.
What is a Firewall?A Firewall is known to be a kind of network security machine that helps to monitors and run through any incoming and outgoing network traffic through the use of firm's formerly set up security policies.
Note that, a firewall is made as a kind of the barrier and as such, The type of network hardware that you should to implement so as to prevent this from happening again is Firewall.
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in a spreadsheet, what is text wrapping used for?
in a spreadsheet, the text wrapping is used for to automatically alter cell height so that it can give room or allow all of the text to fit inside.
What is the feature about?The Excel wrap text feature is known to be one that can help a person to totally display longer text in a cell even without the cell overflowing or moving to other cells.
Note that, in a spreadsheet, the text wrapping is used for to automatically alter cell height so that it can give room or allow all of the text to fit inside.
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A destination port number at the transport layer identifies which application on a computer should receive the data transmission
A destination port number at the transport layer identifies which software application on a computer should receive the data transmission: True.
What is the transport layer?The transport layer can be defined as one of the seven layers of the open systems interconnection (OSI) model and it is responsible for routing messages through an active computer network while selecting the best transmission path from the source to the destination device.
In Computer networking, a destination port number at the transport layer is saddled with the responsibility of identifying which software application on a computer should receive the data transmission.
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which one of the following technology would you use if your manager asked you to configure the network setting for every desktop in your company
The technology that a person would use if your manager asked you to configure the network setting for every desktop in your company is Dynamic Host Protocol (DHCP).
What is Dynamic Host Configuration Protocol (DHCP)?This is known to be a client/server protocol that often gives an Internet Protocol (IP) host with its IP address and other linked configuration information.
Note that in the above case, The technology that a person would use if your manager asked you to configure the network setting for every desktop in your company is Dynamic Host Protocol (DHCP).
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What does the router on the WAN owned by your internet service provider do
with any packet it receives?
A. The router reads the packet and sends it to another router on the
internet.
B. The router sends the packet to a central computer in a secret
location.
C. The router sends the packet directly to individual devices all over
the world.
D. The router stores the packet in an electromagnetic cloud for easy
access.
The router on the WAN owned by an internet service provider (ISP) does the following with any packet it receives: option A.
What is a router?A router is a network device (node) that is designed and developed to connect two (2) different computer networks together, in order to allow them communicate by forwarding and receiving packets.
In Computer networking, the router on the WAN owned by an internet service provider (ISP) is designed and developed to read the packet and then send it to another router on the internet.
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if we intend to include a servo motor as an actuator, what feature should we include when selecting a microcontroller?
If we intend to include a servo motor as an actuator, the feature that we should include when selecting a microcontroller is pulse width modulation pin.
What is a microcontroller?It should be noted that a microcontroller simply means an integrated circuit that designed to govern particular operation in a system.
In this case, if we intend to include a servo motor as an actuator, the feature that we should include when selecting a microcontroller is pulse width modulation pin.
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Which type of URL gives an abbreviated path to a resource using the current page as a starting position?
A relative URL is a type of URL that gives an abbreviated path to a resource by using the current webpage as a starting position.
What is a relative URL?A relative URL can be defined as a type of URL that doesn't contain or use the full address of a website, but only the path (location) following the domain name.
This ultimately implies that, a relative URL is a type of URL that gives an abbreviated path (location) to a web resource by using the current webpage as a starting position.
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state one device that may be found on a computer monitor that is used for video conferencing
Answer: Camera and Microphone
Explanation:
This can be embedded on to the monitor.m
Camera for Visual
Microphone for radio.
Q: Explain the basic units of primary storage and secondary storage.
Answer:
Primary memory usually refers to Random Access Memory (RAM), while secondary storage refers to devices such as hard disk drives, solid-state drives, removable “USB” drives, CDs, and DVDs.
Most source code is typically available on the internet in tarball format or as a git repository. True or false?
Most source code is typically available on the internet in tarball format or as a git repository. Therefore, it's true.
What is a source code?It should be noted that a source code simply means programming statement that area created by the programmer and saved in a file.
In this case, most source code is typically available on the internet in tarball format or as a git repository. Therefore, it's true.
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After a group sets a project schedule, members should be prepared to
O make periodic adjustments on an as-needed basis.
make changes when some members fall behind.
drop other activities so they can complete their job on time.
complete a study-time survey to prove they can do the work.
After a group sets a project schedule, members should be prepared to complete a study-time survey to prove they can do the work.
What is a group project?A group project is a project in which more than one person work together. Group projects are given to improve the work, as various minds can bring out various implements for the project.
Thus, the correct option is D. complete a study-time survey to prove they can do the work.
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Answer:
A on edge
Explanation:
Which transform function would you use to operate the filename values into two separate columns, one for the filename and the other for the file extension? e. G. , xml
The transform function that a person can use to operate the filename values is Split Column - Split at Right-most delimiter
What is Split a column by delimiter?A person can split or divide a column that has a text data type into multiple columns via the use of a common delimiter character.
An example is: A Name column that has some values written that is <LastName>, <FirstName> This is one that can be divided into two columns via the use of the comma (,) character.
Therefore, The transform function that a person can use to operate the filename values is Split Column - Split at Right-most delimiter which is option d.
See options below
A. Extract - Text before delimiter
B. Split Column - Split at Each occurrence of the delimiter
C. Extract - Text after delimiter
D. Split Column - Split at Right-most delimiter
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what do you mean by computer ethics?
Answer:
Computer ethics is a field of applied ethics that addresses ethical issues in the use, design and management of information technology and in the formulation of ethical policies for its regulation in society.
What do both wireless lans (wlans) and wireless wans (wwans) rely on as the communication medium?
Wireless lans (WLANS) and wireless wans (wwans) rely on as the radio frequency spectrum communication medium.
What is Radio spectrum?The radio spectrum is known to be an aspect of the electromagnetic spectrum that is said to have frequencies from 0 Hz to 3,000 GHz.
Note that Wireless lans (WLANS) and wireless wans (wwans) rely on as the radio frequency spectrum communication medium for their functions.
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When you switch-on your computer system, just wait a ____________ and
allow the system to _______________. After________________, the
system will route itself to a background known as the
________________environment.
On this environment, move the ________________ to where we have the
START / Windows Icon at the bottom left. Click on this icon whether it’s
the START or the Windows icon. Now type the word “Microsoft Word” in
the ______________ bar and left-click on the _____________that has
“W” icon. There you found yourself in the Microsoft environment. The
environment comes up with an “A4 paper- size in a _______________
orientation background”, there you start typing your letter.
The answers for the blanks are as follows:
Minute Windows_startGUI environmentCursorSearchFilePortraitWhen you switch-on your computer system, just wait a minute and allow the system to boot_. After_windows_start___,
The system will route itself to a background known as the_GUI__ environment.
On this environment, move the cursor___ to where we have the START / Windows Icon at the bottom left.
Click on this icon whether it’s the START or the Windows icon.
Now type the word “Microsoft Word” in the __search_ bar and left-click on the _file__that has “W” icon.
There you found yourself in the Microsoft environment. The environment comes up with an “A4 paper- size in a portrait_orientation background”,
There you start typing your letter.
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Another name for cellular networking is ______ networking
Another name for cellular networking is wide area networking.
What is cellular network?It should be noted that cellular networking simply means a communication network whee the link to and from the end nodes is wireless.
In this case, another name for cellular networking is wide area networking.
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An automation script fails to connect to an internal server exactly 1 out of 2 times it is executed. This behavior is seen from different clients. Which networking device must be at fault
The networking device that must be at fault is the switch network.
What is a networking device?It should be noted that a networking device means an individual component of the network that's participates at different protocol layers.
Here, the automation script fails to connect to an internal server exactly 1 out of 2 times it is executed. This behavior is seen from different clients. This is the fault of the switch.
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Select the correct answer. In the decision-making process, after you have chosen the right solution, what is the next step? A. Act on your decision. B. Reflect on your decision. C. Gather information. D. Identify the problem. Reset Next
In the decision-making process, after you have chosen the right solution, the next step is to act on your decision.
How do you act on your decision?A person act on their decision-making by putting those decision taken into use.
Therefore, In the decision-making process, after you have chosen the right solution, the next step is to Act on your decision as it entails bringing the decision to light.
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What is the first negative index in a string?
In Computer programming, -1 is the first negative index in a string.
What is a string?A string can be defined as a data type which is commonly used for data values containing ordered sequences of characters.
Also, a string can either contain a single character or be entirely empty. "Hello world" is a typical example of a string in computer programming.
In Computer programming, -1 is the first negative index in a string.
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explain different types of secondary memory of computer system
Answer:
There are three main types of secondary storage in a computer system: solid state storage devices, such as USB memory sticks. optical storage devices, such as CD, DVD and Blu-ray discs. magnetic storage devices, such as hard disk drives.
Explanation:
which type of virtual machine (vm) takes advantage of unused capacity in data centers at a much lower cost than regular vms of similar sizes?
The type of virtual machine that takes advantage of unused capacity in data centers at a much lower cost than regular vms of similar sizes is Transient or Spot VMs.
What is a virtual machine?It should be noted that virtual machine simply means a machine that allows one to run on an operating system in an app window.
In this case, the type of virtual machine that takes advantage of unused capacity in data centers at a much lower cost than regular vms of similar sizes is Transient or Spot VMs.
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(lesson 7.9: acceptance-rejection --- continuous examples.) consider the constant . on average, how many iterations (trials) will the a-r algorithm require?
In (lesson 7.9: acceptance-rejection --- continuous examples.) consider the constant . on average,the iterations (trials) will the a-r algorithm require an acceptance-rejection algorithm for non-stop random variables generate an RV y disbursed as g.
What is acceptance-rejection sampling?It is acceptance-rejection sampling is a manner to simulate random samples from an unknown (or tough to pattern from) distribution (known as the goal distribution) through the use of random samples from a similar, greater handy chance distribution. a random subset of the generated samples are rejected; the relaxation are accepted.
As we already know, finding an express system for f −1(y) for the cdf of an RV x we want to generate, f (x) = p (x x), isn't always usually possible. Moreover, despite the fact that it is, there can be opportunity strategies for producing a rv disbursed as this is greater eÿcient than the inverse remodel technique or different strategies we've got come across. here we gift a totally smart technique called the acceptance-rejection technique.Read more about acceptance-rejection --- continuous:
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You are trying to establish a Wi-Fi Direct connection between a Windows desktop system and a Windows tablet device. You have installed an 802.11n wireless adapter in the desktop system. However, you are unable to see the tablet device. Which action must you take to see the tablet device from the desktop
Answer:
Update the desktop system's wireless network adapter driver with one that supports Wi-Fi Directly. To initiate Wi-Fi Direct connections with other devices, the drivers for your wireless network adapter must be Wi-Fi Direct supported. The wireless adapter in the desktop system is the most probably offender in this circumstance because it is a third-party device that was not installed by the manufacturer.
what nat ip address is a public ip address that maps to an inside device?
The nat ip address is a public ip address that maps to an inside device is "inside global".
What is IP address?It should be noted that IP address simply means an internet protocol address that's is associated with a computer network.
In this case, the nat ip address is a public ip address that maps to an inside device is "inside global".
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When a file is used by a program, there are three steps that must be taken:
The three steps that must be taken:
Open the file Process the fileClose the fileWhat is file opening?The act of Opening a file is one that makes a a connection to exist between the file and the program.
Note that The three steps that must be taken:
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You manage a Windows system. You would like to generate a report that runs several basic tests of the operating system, Security Center, hard disk, services, and hardware devices and drivers. How can you generate a report that includes suggestions for how to improve system performance
Answer:
In Performance Monitor, run the System Diagnostics data collector set.
Which native windows application allows you to access basic pc settings and controls such as system information, controlling user accounts, and uninstalling programs?.
Answer:
Control Panel
Explanation:
The Control Panel allows you to access system information and change PC settings, as well as uninstall programs not downloaded from the Microsoft Store.
you're using a linux distribution that uses rpm for package management. which command would you use to install httpd, the apache http server package, and all its dependencies?
The command that a person would use to install httpd is known to be yum install httpd.
What is the command about?Note that in any Linux distribution that often employs the use of RPM for package management, the act of inputting yum install httpd at the command line will hep a person to be able to install the Apache HTTP Server package and any of its dependencies.
Note that YUM automatically find and downloads RPM packages and as such The command that a person would use to install httpd is known to be yum install httpd.
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show an example of a sequence programming construct
Sequences, selection, and repetition are the steps including the example of a sequence programming construct.
What is a sequence programming construct?The CPU is instructed on which statement should be performed next via a sequence construct.
In most common languages, this is usually either the statement that comes before the current statement or the very first statement in the program. In other words, this is the fundamental building block of programming.
There are several well-known fundamental programming structures that fall into the following categories:
Sequences (First Floor)
Selection (Second Floor)
Repetition (Third Floor)
Hence, sequences, selection, and repetition are the sequence including the example of a sequence programming construct.
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Theodor is researching computer programming. He thinks that this career has a great employment outlook, so he’d like to learn if it’s a career in which he would excel. What two skills are important for him to have to become a successful computer programmer?
leadership skills in order to oversee other departments in the office
public speaking skills to discuss the various research findings in the field
creativity and artistic talent to design computer equipment
analytical skills to troubleshoot problems for clients
concentration and focus to be able to study and write computer code
The skills that are vital are:
Analytical skills to troubleshoot problems for clients.The concentration and focus to be able to study and write computer code.What are analytical and problem solving skills?This is known to be the ability of a person to be able to look into information in-depth so as to tell the key or important elements, its strengths and weaknesses and others.
Therefore, The skills that are vital are:
Analytical skills to troubleshoot problems for clients.The concentration and focus to be able to study and write computer code.Learn more about Analytical skills from
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Answer: Analytical skills to troubleshoot problems for clients.
concentration and focus to be able to study and write computer code
Explanation:PLATO 2023 babay
