A computer networking tool called netcat (often abbreviated to nc) is used to read from and write to network connections using TCP or UDP. The command is intended to act as a reliable back-end that can be used directly or is simple to use as a driver for other programmes and scripts.
What is the most effective way to stop NetBIOS attacks?You can prevent abuse of the NetBIOS service in addition to disabling it by blocking TCP & UDP port 137 in your Windows firewall.
What is the purpose of NetBIOS?A network service called NetBIOS (Network Basic Input/Output System) makes it possible for programmes running on various computers to communicate with one another over a local area network (LAN). It was created in the 1980s to be used with early IBM PC networks.
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refer to the exhibit. a network administrator needs to configure router-on-a-stick for the networks that are shown. how many subinterfaces will have to be created on the router if each vlan that is shown is to be routed and each vlan has its own subinterface?
The PC, printer, IP phone, and switch control VLAN are all on different VLANs based on the IP addresses and masks provided.
Four sub interfaces on the router are necessary in this circumstance. Finally, we set sub-interfaces to begin our router configuration. We set up sub-interfaces for each VLAN on the port that connects the router and the switch. Additionally, we configured 802.1Q encapsulation using the sub-VLAN interface's number. This suggests that switching between different VLANs can be accomplished using a router and switch with a single physical interface. Multi-vendor VLAN support is provided by the IEEE 802.1Q (Dot1q) protocol, which establishes a system of VLAN tagging for Ethernet frames.
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differences between ancient means of communication and modern means of communication
Answer:
The older methods of communication were cave paintings, smoke signals, symbols, carrier pigeons, and telegraph. The latest and modern ways are more convenient and efficient. For example, Television, Cell Phones, Internet, E-mails, Social media, and Text messaging
Answer:
The older methods of communication were cave paintings, smoke signals, symbols, carrier pigeons, and telegraph. The latest and modern ways are more convenient and efficient. For example, Television, Cell Phones, Internet, E-mails, Social media, and Text messaging.
The only real difference is the speed of it. Other than that, only the delivery methods have changed. Communication itself is the same, as far as I can see.
Explanation:
A school is developing a program to keep track of information about students and their class schedules. In which of the following instances would a data abstraction be most helpful?
Answer:
A data abstraction would be most helpful in the instance where the school is developing a program to keep track of information about students and their class schedules. This is because data abstraction allows for the hiding of complex implementation details and the manipulation of data through a simplified interface. This allows the program to be more organized and efficient, as well as easier for users to understand and interact with. In this case, data abstraction can be used to create a user-friendly interface for entering and viewing student information and class schedules, while also ensuring that the underlying data is stored and processed in a consistent and secure manner.
A data abstraction would be most helpful in the instance where the school is developing a program to keep track of information about students and their class schedules.
What does the Data abstraction?Data abstraction has been allows for the hiding of the complex implementation as well as the details and the manipulation of data through the simplified interface. This has allows the program to be more organized along with the efficient.
It is easy for the users to understand and interact with. In this case, data has abstraction which can be used to create a user-friendly interface for the entering as well as viewing the student information and the class schedules, while it has also ensuring that the underlying data has been stored and processed in the consistent and the secure manner.
Data abstraction has been the process of reducing the specific set of the data to a condensed illustration of the total. Generally, abstraction has the process of the stripping something of its characteristics in order to reduce it to its core components.
Therefore, A data abstraction would be most helpful in the instance where the school is developing a program to keep track of information about students and their class schedules.
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which of the following are true? (select all that apply). a full mesh topology is more scalable than the hub-and-spoke topology a full mesh topology is more fault-tolerance than the hub-and-spoke topology. client-server network is more scalable than peer-to-peer network. star topology requires more cable than ring topology. a logical topology describes how devices are connected to each other while a physical topology defines how devices communicate with each other.
Every element in the network is directly linked to every other element. A mesh topology has the following characteristics: Links across the network are redundant in a mesh design.
Is mesh and fully connected topology same?This topology offers a lot of redundancy as well as various paths to success at the target. Both privacy and security are very good. Because failure doesn't interfere with its operations, data transfer is more reliable. Transmission of data won't be hampered by adding extra devices.
comprehensive topology: a topology for a network where there is always a direct route (branch) between any two nodes. There are n(n-1)/2 direct pathways, or branches, in a fully connected network with n nodes. mesh network with all nodes connected.
When a network's nodes are all connected to one another by a circuit, this is known as a full mesh topology. In case of a node failure, network traffic can be routed to any of the other nodes thanks to full mesh's highest level of redundancy. For backbone networks, full mesh is typically used.
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At what layer of the OSI model do routers operate?
Base
Network
Physical
Data Link
Of the OSI Model, the Network Layer A Layer 3 device that is frequently used is the router.A router, which functions at Layer 3, examines the IP & IPX addresses for incoming data packets.
What does Layer 3 mean?The network layer, or Layer 3, is most frequently referred to as the layer wherein routing occurs.The primary function of a router is to transfer packets between networks.Network-to-network communications are possible thanks to Layer 3 protocols and technology.
What lies in OSI layer 3?The network layer is located at Layer 3 of the Open Systems Interconnect (OSI) model's seven layers.Forwarding for incoming packets of data of varying duration takes place at Layer 3.The operations and steps that lead to data transfers between connection sites are part of this network layer.
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Input Sanitation and validation questions.
Explain the differences between input sanitation and input validation
The difference between input sanitation and input validation is validation checks if the input meets a set of criteria and sanitization modifies the input to ensure that it is valid.
What is input sanitation?Input sanitization verifies entered data and eliminates anything that could be potentially harmful. On an online form, this is a good illustration. A hacker might use a SQL injection attack to try to access a website's data.
The process of checking input received by the application against a standard set within the application is known as input validation. I
Therefore, input sanitation alters the input to ensure that it is valid, in contrast, to input validation, which determines whether the input satisfies a set of requirements.
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A chip uses pins A, B, C, and D to detect four bit numbers. What decimal number is represented by the following output signals?
A chip uses pins A, B, C, and D to detect four bit numbers. What decimal number is represented by the following signal inputs. The decimal number represented is 6.
What is the chip about?The number represented by the pins A, B, C, and D depends on the encoding scheme used by the chip. For example, if the chip uses binary encoding, then the decimal number would be the binary number represented by the state of the pins, where A is the most significant bit and D is the least significant bit.
However, if the chip uses a different encoding scheme, such as Gray code, the decimal number would be different. To determine the decimal number, we would need to know the encoding scheme used by the chip.
In the above case, You need to add the values of the pins that contains 5V, so it will be: 4+2 =6.
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See full question below
A chip uses pins A, B, C, and D to detect four bit numbers. What decimal number is represented by the following signal inputs? Enter
your answer as an integer.
The decimal number represented is ______.
claudio knows that he needs to start practicing typing more because he's taking a typing test in a few weeks. what's the minimum he should practice?
Prior to the test, Claudio needs to practise typing for at least 15 to 30 minutes each day. By training with typing drills and games, he should concentrate on improving his typing speed and accuracy. In order to avoid injury, Claudio should also take rests and extend his fingers.
Claudio is an individual who is aware that he needs to improve his typing skills in preparation for an upcoming test. He understands that in order to perform well on the test, he needs to practice regularly and focus on key aspects of typing such as hand positioning, speed, and accuracy. Additionally, Claudio is also taking steps to familiarize himself with the format and layout of the test, as well as any specific requirements or guidelines that need to be followed. He is determined to be fully prepared and confident when it comes time to take the typing test, and is making a concerted effort to practice and improve his skills in the weeks leading up to the test.
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Acumatica – The Most Advanced Warehouse Inventory Management Software
What is Acumatica WMS?
Barcode scanning for warehouse and inventory transactions enhances Order Management and Inventory Management in Acumatica WMS.
The Acumatica System is what?Acumatica is business management software with everything an expanding company might need, from simple online accounting to complete ERP features. You only license the modules you now require from Acumatica ERP, and you can add more later.
A material flow-based, business process-oriented, rules-driven integrated warehouse management system is what Acumatica WMS is. The program enables material flow visibility for all warehouse activities and processes and seamlessly connects throughout the whole supply chain.
Acumatica is business management software with everything an expanding company might need, from simple online accounting to complete ERP features. You only license the modules you now require from Acumatica ERP, and you can add more later.
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q9. big o notations and runtime of algorithms: suppose you have the option of running three algorithms, alg1, alg2, alg3, with running times o(1000n ln n), o(n3), 300n2, respectively. which algorithm would you select (i.e., which one is the fastest according to big-oh analysis) to run on input instances with arbitrarily large sizes n?
Big O predicts how an algorithm's performance will change as the input size increases and uses this information to define the runtime necessary to carry out an algorithm. The runtime of your algorithm is not, however, indicated. Using time and space complexity, Big O notation evaluates your algorithm's effectiveness and performance.
What is Big O?A representation of an algorithm's worst-case complexity is Big O, commonly referred to as Big O notation. The complexity of an algorithm is described using algebraic language.Big O predicts how an algorithm's performance will change as the input size increases and uses this information to define the runtime necessary to carry out an algorithm. The runtime of your algorithm is not, however, indicated.Using time and space complexity, Big O notation evaluates your algorithm's effectiveness and performance.The hardware, OS, and CPU you utilise are a significant underlying component determining the effectiveness and performance of your software.When examining an algorithm's performance, however, you don't take this into account. What matters is the time and space complexity as a function of the amount of the input, not the other way around.To Learn more About Big O Refer To:
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Big O uses this information to define the runtime required to execute an algorithm and predicts how an algorithm's performance will change as the input size grows.
However, your algorithm's runtime is not shown. Big O notation evaluates the efficiency and performance of your algorithm using time and space complexity.
Big O: What is it?Big O, or Big O notation, is a representation of an algorithm's worst-case complexity. An algebraic language is used to describe an algorithm's complexity. Big O uses this information to define the runtime required to execute an algorithm and predicts how an algorithm's performance will change as the input size grows. However, your algorithm's runtime is not shown.
Big O notation evaluates the efficiency and performance of your algorithm using time and space complexity. The effectiveness and performance of your software are heavily influenced by the hardware, operating system, and CPU you use.
However, this is not taken into account when evaluating an algorithm's performance. The time and space complexity as a function of the quantity of input is what matters, not the other way around.
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the admin at universal containers is setting up permissions for internal sales users. in addition to assigning the salesforce cpq user permission set, for which objects do the users need read, create, edit, delete permissions?
They contain a small group of permissions that are crucial for the safety of Salesforce CPQ data.
We created Access sets to be assigned directly to users without any cloning or modifying, in contrast to the majority of CPQ admins who copy and then edit basic access sets for org users. Users' functional access is increased via permission settings without having to modify their profiles. Depending on the Salesforce edition, users can have several permission sets even if they can only have one profile. Regardless of their profiles, you can assign different sorts of users different permission sets. Regardless of a user's primary job function, you can create permission sets to allow access to logical groupings of people. Let's imagine, for instance, that you have a number of users who must transfer and delete leads.
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apps for blind and visually impaired crossword clue
The terms "ACCESSIBILITY APPS" and "screen reader" are the responses to the crossword clue "Apps for blind and visually impaired persons."
What purpose do apps serve?The goal of accessibility apps is to increase the usability of technology for those with disabilities, particularly those who have visual impairments. These apps frequently provide functions like text-to-speech, magnification, and voice control to make it easier for the user to access and operate their devices.
Applications known as accessibility apps are created to increase technology accessibility for people with disabilities, especially those who have visual impairments. These apps frequently provide functions like text-to-speech, magnification, and voice control to make it easier for the user to access and operate their devices.
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what compensates for operating system inadequacies? purchasing updated software antivirus software agile fixes system updates
system updates compensates for operating system inadequacies
What is Operating system?Operating system can be defined a type of system software that controls how computer hardware and software resources are used and offers basic services to other software applications.
Operating systems that use time-sharing plan activities to make the most of the system's resources. They may also contain accounting software to allocate costs for processing mass storage, printing, and many other resources.
The operating system serves as a bridge between software and computer hardware for physical features including input, output, and memory allocation. From mobile phones, web servers and supercomputers, many devices that house a computer have operating systems.
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System updates correct deficiencies in the operating system. New software included in operating system updates helps keep your computer up to date.
Option E is correct
What is an operating system?An operating system is a piece of system software that directs how computer hardware and software resources are used and provides other software applications with fundamental services. Activities are planned in time-sharing operating systems to make the most of the system's resources. Accounting software may also be included to allocate costs for printing, mass storage, processing, and other resources.
When it comes to physical features like input, output, and memory allocation, the operating system acts as a link between software and the hardware of the computer. Operating systems can be found on a wide range of computers, including mobile phones, web servers, and supercomputers.
Incomplete question :
What compensates for operating system inadequacies?
A.AntiVirus Software
B.Patch Fixes
C.System Updates
D.Buying updated software
E.System updates
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on a linux system, what is the first user that gets automatically created?
The Linuux system's primary user account is the root user account. During installation, it is created automaticallyy.
In Linuux, what is the root user?The special user with the user ID (UID) of 0 in the etc passwd file is known as the root account and is commonly referred to as root. The root account is unique for the UID value of 0 rather than the user name. This indicates that the root user's privileges are shared by any user with a UID of 0.
In Linux, what is a system user?Accounts that can be used to log into a system are called users. The system assigns a UID, or unique identification number, to each user. The etc passwd file houses all of a system's userr information.
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which type of data has database format (how it is stored in the database) that is known in advance and is consistent for each type?
The correct answer is structured data.Type of data has a consistent and established database format (how it is stored in the database).
Structured data is a defined format for describing a page's content and categorising it. For instance, on a recipe page, structured data may include information on the ingredients, the cooking time and temperature, the calories, and so forth. Unlike structured data, which is extremely specific and is stored in a predetermined way, unstructured data is a collection of many distinct types of data that are saved in their original formats. This proves that while structured data benefits from schema-on-write, unstructured data makes use of schema-on-read.
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writing queries in sql to compile data from a database is related to the physical level of databases
Writing queries in SQL to combine data from a database is related to the physical level of databases ---- True
Your database's physical design maximizes performance while preserving data integrity by avoiding redundant data.
In SQL, what is a physical database?
Your database's physical design maximizes performance while preserving data integrity by avoiding redundant data. The entities become tables, instances become rows, and attributes become columns during physical design.
What is a database's physical level?The internal level is yet another name for it. The physical level explains how the database actually stores data. This data is stored as bits on external hard drives at the lowest level, and at a slightly higher level, it can be said to be stored in files and folders.
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assume that e is a variable of type exception that has been declared and that references an exception object. write a statement that displays to standard output the message associated with e
Statement that displays to standard output the message associated with e is e.getErrorMessage();
What is type exception?
An exception is a circumstance that develops while a programme is being executed that prevents the instructions from proceeding normally. Exceptions are unwanted bugs or problems that prevent our software from running its code normally. There are different types of Java exceptions and their distinctions is an important topic in Java language
Exception are of two types as given below:
1. Built-in Exception
-- Checked Exception
-- Unchecked Exception
2. User-Defined Exception
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If a technician is unable to create a backup of data on a customer computer, what three pieces of information should the technician include on the liability release form signed by the customer before beginning work? (Choose three. )
a description of the problem
the steps required to resolve the problem
permission to work on the computer without a current backup available
a release from liability if data is lost or corrupted
a description of the work to be performed
SHOW ANSWER
A waiver of liability in the technician event that data is lost or corrupted, authorization to work on the computer without a current backup, and a description of the tasks to be carried out.
Where can a technician find current details on faults made when troubleshooting a computer?Event Viewer can provide details about faults brought on by hardware, software, or users. An application called Event Viewer keeps track of specific information concerning issues like:
What should you attempt to fix first when a computer issue arises?Regularly inspect the cables: Checking all associated cables to ensure they are connected properly is a simple first step if you're experiencing issues with a specific piece of computer hardware, such as your display or keyboard. Computer restart:
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write a function swapvectorends() that swaps the first and last elements of its vector parameter. ex: sortvector = {10, 20, 30, 40} becomes {40, 20, 30, 10}. code writing challenge activity demo
The function swap vector ends() switches the start and last elements of the vector input. Example: The code for sort vector = "10, 20, 30, 40" becomes "40, 20, 30, 10".
What do you mean by function()?
A collection of programme instructions that collectively carry out a single task is known as a function or subroutine in computer programming. When a task needs to be completed, this device can be utilised in programmes.
In the libraries that are available for many different programmes, programmes can define functions either internally or externally. In different programming languages, a function may also be referred to as a procedure, subprogram, method, or routine. Technically speaking, each of these terms has a distinct definition, and each language has its own nomenclature. A general term that is occasionally used is "invocable entity."
#include
#include
using std;
int main ( ) {
vectorsortVector(4);
int i = 0;
sortVector.
at(0) = 10;
blackVector.at(1) = 20;
blackVector.at(2) = 30;
blackVector.at(3 ). ) = 40 ;
SwapVectorEnds ( blackVector );
}
cout <
return 0;
}
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vpn connection failed due to unsuccessful domain name
The fact that the VPN connection failed due to a failed DNS resolution indicates that there are DNS problems with Cisco VPN. By fiddling with your DNS settings, you can get around this solution. Additionally, this problem can be resolved by changing the content of important files.
What is the DNS SettingThe term "Domain Name System" (DNS) is used. By comparing human-readable domain names (like wpbeginner.com) with the distinctive ID of the server hosting a website, it is a mechanism that enables you to access websites.
Imagine the DNS system as the phone directory for the internet. Instead of listing names and phone numbers for individuals, it lists domain names together with the matching identifiers known as IP addresses. On a user's device, typing a domain name
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here have a good day
intro to computer programming chapter 2 discussion questions what is the difference between a scene method and a class method?
Answer:
A scene method, also known as an instance method, is a method that is associated with an instance of a class and operates on the data of that instance. On the other hand, a class method is related to the class itself and works on the class's data. In other words, a class method is a method that is called on the course rather than on an instance of the class. The critical difference between the two is that a class method operates on the class level, while a scene method operates on the instance level.
Explanation:
how to disable prevent cross-site tracking on macbook
Launch Safari. By selecting "Preferences" from the "Safari" menu on the menu bar's left side, you may access Safari Preferences. Toggle to the "Privacy" tab. The "Prevent cross-site tracking" check box should be unchecked. The Preferences window must be closed.
Can I disable the cross-site tracking protection?Open Safari to begin disabling this setting. Click Preferences after clicking Safari in the menu bar. Click Privacy and uncheck the option next to Prevent cross-site tracking in the window that appears.
What does Safari's "block cross-site tracking" setting mean?Prevent cross-site tracking is enabled by default, allowing safari to disable this tracking. Every time a user visits a website, Safari flushes the cookies and website data, preventing data exchange between websites.
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Computer-aided manufacturing (CAM) offers which possible benefits? Select all that apply.
A. reduced waste
B. increased energy use
C. increased production flexibility
D. larger parts inventories
Cost, waste, lead times, and errors can all be dramatically decreased using computer-aided manufacturing. It enhances precision, surface quality, and uniformity.
Which benefit of computer-aided manufacturing (CAM) is obvious?Computer-aided manufacturing has the potential to significantly speed up the production process. Maintaining precision throughout. As a result, CAM is incredibly reliable and consistent. CAM machines can be configured to repeatedly generate the same output with unmatched accuracy.
What function does technology play in CAM?The term "computer-aided manufacturing" (CAM) describes the application of technology to the manufacturing process. In order to create produced goods, industrial equipment is programmed, managed, and controlled by computers.
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You have an Azure subscription named Subscription1 that contains a resource group named RG1. In RG1, you create an internal load balancer named LB1 and a public load balancer named LB2. You need to ensure that an administrator named Admin1 can manage LB1 and LB2. The solution must follow the principle of least privilege. Which role should you assign to Admin1 for each task
Moving IP addresses and storage accounts is possible. Virtual networks can't move around. There is no lock on RG1. There is a delete lock on RG2.
How can I see the time and date that the resources in RG1 were created?The RG1 file contains resources that were distributed through templates. The time and date that the resources in RG1 were created must be verified. Solution: Click Resource providers after selecting the subscription from the Subscriptions blade.
How can we stop virtual machines from being created in RG1 only?Only in RG1 must virtual machine building be stopped. Which should you employ? To specify requirements for resource attributes both during deployment and for already deployed resources, utilize Azure policies. Cloud Policy.
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when planning a turn, you must signal ____ ahead of the turn.
Before making a turn changing lanes, you must indicate properly. The lit signals found in the majority of automobiles are the safest sort of signal.
What ought to be done in advance of turning always?Prior to making a turn or lane change, signal. It's crucial that other motorists are aware of your intentions. You must give at least 100 feet (30 m) of advance notice while making a turn or changing lanes, as required by law.
What hand signals should you use when turning?Point with the index finger of your left hand or stretch your left arm out to the side. Correct Turn: Your left arm should be extended, palm facing ahead, elbow bent forward. Stop/Slow Down: Lean to the left.
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fill in the words to complete each step in liquid spill cleanup.
Physically eliminating or neutralising pollutants that have accumulated on people and equipment is the process of decontamination.
What significance do safety regulations have?Workplace safety regulations are crucial because they safeguard staff members, clients, and the company's reputation. Enforcing safety regulations can minimise workplace accidents and injuries while increasing productivity. Reducing risks can enhance the working environment and boost employee happiness.
What are the three procedures for handling a spill?The general steps for responding to a hazardous material spill include: RESCUE – Clear the spill site. Offer assistance, including the use of eyewash stations and safety showers. Once you've been properly decontaminated, seek immediate medical attention.
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solve the following problem. it may be helpful to draw a chart on scrap paper to organize the information and write the equation. be sure to show all steps (v.e.s.t.) and work in order to receive full credit. a clerk was asked to change a $10 bill. she returned 9 more dimes than nickels and twenty-one more quarters than dimes. how many coins of each did she return?
A clerk was asked to change a $10 bill. The clerk returned -20/3 nickels, 7 dimes, and 28 quarters.
What do you mean by bill?
A bill is a document that states a specific amount of money that a person owes for goods or services. It may also refer to a legislative document that proposes a law that must be agreed upon by both houses of a legislature before it can become law.
This problem can be solved using the V.E.S.T. approach:
Variables:
N = number of nickels
D = number of dimes
Q = number of quarters
Equation:
N + D + Q = 150
Given Conditions:
D = 9 + N
Q = 21 + D
Substituting the second condition into the first:
N + (9 + N) + (21 + 9 + N) = 150
Simplifying and solving for N:
3N + 30 = 150
3N = 120
N = 40
Substituting the value of N into the second condition:
D = 9 + 40
D = 49
Substituting the values of N and D into the third condition:
Q = 21 + 49
Q = 70
Therefore, the clerk returned 40 nickels, 49 dimes, and 70 quarters.
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12) The internet consists of:
A) a very large physical data center in Geneva, Switzerland.
B) cables under the oceans that connect computers.
C) web pages.
D) millions of connected devices.
Answer:
D) millions of connected devices.
A school with 600 students wants to produce some information from the results of the four standard tests in Maths, Science, English and IT. Each test is out of 100 marks. The information output should be the highest, lowest and average mark for each test and the highest, lowest and average mark overall. All the marks need to be input. A Write a program to complete this task. B Explain how you would test your program
Each test has a score of 100. Each state's highest, lowest, and average marks, as well as the overall highest, lowest, and average marks, ought to be included in the information.
Describe your method for testing your program.?Software is tested by testers using test plans, test cases, or test scenarios to guarantee its completeness. Exploratory testing, in which testers investigate the software for flaws, is another type of manual testing. The evaluation and verification of whether a software product or application performs as intended is known as software testing. Bug prevention, lower development costs, and improved performance are all benefits of testing.
Testing of basic functionality. Check that each button on every screen works first. a code review. Numerous issues can be discovered by looking at the source code with fresh eyes. static code inspection , Tests on units. ,Performance testing for one person.
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