What C++ parameter passing technique can be used in place of call-by-value when it is desirable to avoid making a copy of the parameter?
Question 19 options:
by result
by value-result
by reference
by constant reference
Answers
The C++ parameter passing technique that can be used in place of call-by-value when it is desirable to avoid making a copy of the parameter is by reference. This allows the function to access the original parameter without creating a new copy, which can improve performance and reduce memory usage.
In C++, when a function is called, the values of its parameters are passed to the function. By default, these parameters are passed by value, which means that a copy of the parameter is made and passed to the function. This can be inefficient and time-consuming, especially if the parameter is large or complex.
To avoid making a copy of the parameter, the parameter passing technique by reference can be used. This technique allows the function to access the original parameter directly, rather than making a copy. When a parameter is passed by reference, its memory address is passed to the function, rather than its value.
To pass a parameter by reference in C++, the ampersand symbol (&) is used. For example, the function signature might look like this: void myFunction(int& myParam). This indicates that the function expects to receive a reference to an integer parameter, rather than a copy of the integer itself.
By using the parameter passing technique by reference, the function can directly access and modify the original parameter. This can be useful in situations where the parameter is large or complex, and making a copy would be inefficient or impractical.
It is worth noting that if the parameter should not be modified by the function, it can be passed by constant reference to ensure that it is not accidentally changed. In this case, the function signature might look like this: void myFunction(const int& myParam). The const keyword indicates that the function will not modify the parameter, while the ampersand indicates that the parameter is passed by reference.
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Related Questions
northern trail outfitters is using one profile for all of its marketing users, providing read-only access to the campaign object. a few marketing users now require comprehensive edit access on campaigns. how should an administrator fulfil this request
Answers
Configure the login policy to demand that users log in using https://nto.my.salesforce.com.
A purposeful set of rules designed to direct behavior and produce logical results is called a policy. A policy is a declaration of intent that is carried out through a method or protocol. Typically, a governance board inside a company adopts policies. Both subjective and objective decision-making can benefit from policies. Policies used in subjective decision-making typically aid senior management with choices that must be based on the relative merits of a variety of aspects, and as a result, are frequently challenging to assess objectively. An example of a policy used in this manner is the work-life balance policy. In addition, governments and other institutions have policies in the form of laws, rules, guidelines, administrative procedures, rewards, and voluntary practices. Resources are frequently distributed in accordance with policy choices.
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Carmen works in an insurance office, and she is not allowed to talk about any of the clients' names outside of work. What is guiding that mandate?
A) a company policy
B) a federal law
C) a federal regulation
D) a state law
Answers
The mandate that Carmen is not allowed to talk about any of the clients' names outside of work is most likely guided by a company policy.
What is the importance?Many companies, especially those that handle sensitive information like insurance offices, have strict policies in place to protect their clients' privacy and maintain confidentiality.
However, depending on the specific industry and location, there may also be federal or state laws and regulations that require companies to protect client information. Nevertheless, without further information, it is most likely that Carmen's mandate is driven by the company's privacy policies.
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hijacked email can occur after a system is taken over by an attacker. the victim usually finds out about it when someone asks about an email the victim sent them, or the victim sees an automated out of office reply from one of the recipients of the victim's emails.
Answers
The statement that hijacking an email can occur after a system is taken over by an attacker..... is True.
What do you mean by cyber hijacking?
Cyber hijacking, also known as computer hijacking, is a kind of network security attack in which the attacker seizes control of computer networks, software, and/or programs.
A variety of cyber attack rely on hijacking in one way or another, and — similar to other hijackings, like an airplane hijacker or criminals seizing control of an armored transport vehicle — cyber hijacking is frequently, but not always, highly illegal with serious repercussions for both the attacker and the victim.
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The workstation is experiencing poor network performance, and you suspect that the network board is not correctly detecting the network speed and duplex settings. Upon investigation, you find that it is running at 10 Mbps half-duplex. You know that your network switch is capable of much faster throughput. To fix this issue, you decide to manually configure these settings on the workstation. Before you do so, you need to verify the configuration of the switch port that the workstation is connected to.
Required:
Given that it is a Cisco switch, which commands can be used on the switch to show a list of all switch ports and their current settings?
Answers
Answer:
thank you sa points labyu stay safe
What are the steps to debugging?
Answers
Answer:
The basic steps in debugging are:
Recognize that a bug exists.
Isolate the source of the bug.
Identify the cause of the bug.
Determine a fix for the bug.
Apply the fix and test it.
please answer fast..
Answers
Answer:
a. False.
b. True.
c. False.
d. False.
Explanation:
a. False: Data stored in RAM are called firmware. It's the data stored in read only memory (ROM) are called firmware.
Radom Access Memory (RAM) can be defined as the main memory of a computer system which allow users to store commands and data temporarily.
Generally, the Radom Access Memory (RAM) is a volatile memory and as such can only retain data temporarily.
All software applications temporarily stores and retrieves data from a Radom Access Memory (RAM) in computer, this is to ensure that informations are quickly accessible, therefore it supports read and write of files.
b. True: a register is a temporary storage device within the central processing unit (CPU) of a computer system. Thus, it is designed to quickly accept, store and transfer data or instructions being used on a computer system.
c. False: the result obtained after data processing is given by input devices. Any result obtained after data processing is given by output devices such as speakers, monitor, projector, etc.. Input devices such as keyboard, mouse, scanner, etc., are used for entering the data into a system.
d. False: E-shopping allows us to make deposits, withdrawal and pay bills with the click of a mouse.
E-shopping can be defined as a marketing strategy that deals with meeting the needs of consumers, by selling products or services to the consumers over the internet.
This ultimately implies that, E-shopping is strictly based on the buying and selling of goods or services electronically, over the internet or through a digital platform. Also, the payment for such goods or services are typically done over the internet such as online payment services.
A user called the Help Desk because he's having trouble downloading new messages from the company's email server.
The Help Desk technician told him to open a command prompt and try to ping the email server. The technician also told him to check his SMTP and POP3 server IP addresses.
Did the Help Desk technician handle this request correctly?
Answers
Yes, the Help Desk technician handled the request correctly by suggesting the user to ping the email server and check the SMTP and POP3 server IP addresses.
Yes, the Help Desk technician handled the request correctly. When a user is having trouble downloading new messages from the company's email server, it can indicate a connectivity issue. By suggesting the user to open a command prompt and ping the email server, the technician is troubleshooting the connectivity between the user's device and the email server. Pinging the server helps determine if there is a network connection problem or if the server is unreachable.
Additionally, asking the user to check their SMTP and POP3 server IP addresses is also a valid step. SMTP (Simple Mail Transfer Protocol) and POP3 (Post Office Protocol version 3) are protocols used for sending and receiving emails, respectively. Verifying the server IP addresses ensures that the user has the correct server information configured in their email client. If the IP addresses are incorrect or misconfigured, it can lead to issues with downloading new messages.
By suggesting these steps, the Help Desk technician is following a logical troubleshooting process to identify and resolve the problem. They are checking the network connectivity through the ping command and ensuring the correct server settings are used by verifying the SMTP and POP3 server IP addresses. These actions help narrow down the issue and provide valuable information for further troubleshooting or escalation if needed.
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If you play video games, please answer these questions it’s for a survey for my game development class!!
Why do you play video games?
What types of games do you play?
How long have you been playing video games?
How do you think video games will be played in the future?
Do you think video games will converge to a single platform in the future?
Answers
Answer:
Cause it fun and i have fun
call of duty and football and boxing games
Since i was 7 now im 13
with your mind
I dont know
Answer:
1. It relives stress and makes you forget about your problems.
2. Call of duty, (My favorite)GTA, & Fortnit8.
3. I've been playing for 7 years.
4. Yes, video games will be passed on for generations.
5. I dont know.
Explanation:
______ is a machine learning technique that helps in detecting the outliers in data
Answers
Outlier Detection is a machine learning technique that helps in detecting the outliers in data. It is used to identify data points that are significantly different from the majority of the data.
Finding and analysing data points that differ considerably from the bulk of the other data points in a dataset is the process of outlier detection. Outliers are data points that are significantly larger or smaller than the other data points in the dataset. They can significantly affect machine learning models and statistical analysis.
It can be used to detect anomalies in financial data, medical data, manufacturing data, or any other type of data.
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Your company resides in an area with rapid growth in both the corporate and residential areas surrounding your office. As such, your company has been experiencing several brownouts due to power grid problems (too much demand and not enough electricity). Fearing that your computers (especially the servers) could be damaged by these brownouts, your manager has asked you to find a solution to this problem.
Which of the following would be the BEST device to recommend to your manager for computer protection?
A. Surge suppressor
B. Power strips
C. UPS
D. Wall Outlet
Answers
Answer:
The correct answer is option C (UPS).
Explanation:
Since brownouts are reduced voltages that might not be good enough for the required electricity capacity for your company, fearing that your computers (especially the servers) could be damaged, it is best to use UPS for your computer protection.
A UPS also called (Uninterruptable Power Supply) can function as a Surge suppressor when the voltages entering your company might be higher than normal, it can also function too in protecting your computers (especially the servers) in the case of a brownout when voltage required by your computers dropped below the required level. In the case of a brownout, the UPS supplies energy stored in its batteries to make the computers keep working without going off from lack of electricity.
a user cannot delete one of their files but is able to delete other files in their directory. john, a system administrator, is attempting to troubleshoot this issue. what command should he use first on the file?
Answers
The first command John should use is the ls -l command to check the file's permissions and ownership.
The output of this command will show the file permissions and the owner of the file. John can check whether the user has the appropriate permissions to delete the file or if the file ownership needs to be changed. If the file is owned by another user or group, John may need to change the ownership of the file to the user who wants to delete it. If the file permissions are incorrect, John may need to use the chmod command to modify the permissions of the file so that the user can delete it.
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Many organizations will purchase just one or two printers because they know that any user on the _______ will be able to print to them. Select your answer, then click Done.
Answers
The correct word to use in filling the blank is: Network.
What is an Organization Network?An organizational network is a group of people within a company that agrees to share resources. The resources could also be digital resources like printers.
So, when organizations purchase printers and connect their employees, they can benefit from the network.
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It is necessary to determine what individual or organization is responsible for a web site in order to determine its _____
Answers
It is necessary to know the person or organization in charge of a website to determine its'; Website Designer
Who is a website Designer?A website designer is defined as individual or organization that is responsible for the organization and appearance of a Web site.
Now, these website designers create the visual aspects of websites. They do this by meeting with clients, online or in person, in order to get a clear picture of the message that need.
Thereafter, these Web Designers create and build websites and web pages by combining any number of visual design elements including text, photos, graphics, animations and videos.
Finally, a Web Designer could either be responsible for creating a brand new website or simply making updates to the design and layout of existing pages.
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Which office setup would be difficult to host on a LAN?
hardware.
RAM.
storage.
software.
Answers
The office setup would be difficult to host on a LAN is option C: storage.
What is the office LAN setup like?A local area network (LAN) is a network made up of a number of computers that are connected in a certain area. TCP/IP ethernet or Wi-Fi is used in a LAN to link the computers to one another. A LAN is typically only used by one particular establishment, like a school, office, group, or church.
Therefore, LANs are frequently used in offices to give internal staff members shared access to servers or printers that are linked to the network.
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the simplest type of support that the operating system can provide is _________.
A) overflow buffering
B) dual buffering
C) single buffering
D) circular buffering
Answers
The simplest type of support that the operating system can provide is single buffering. Option C is the answer.
In computer science, a buffer refers to an area in memory that is used to temporarily hold data while it is being transferred from one place to another. When data is being read or written in a program, a buffer is used to temporarily store it before it is sent to its final destination.
When a single buffer is used to accomplish this task, it is known as single buffering.Single buffering is the most basic type of buffering. It is used to store data when it is being moved from one location to another, such as from the hard drive to the memory or from the memory to the display screen, in order to avoid interruptions or slow processing speeds.
The operating system is responsible for implementing buffers and buffering methods. They ensure that the data is stored properly and transferred securely from one place to another. Different types of buffering techniques are used to manage the buffer data depending on the data transfer frequency and data type.
Option C is the answer.
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in accepting the acm turing award, ken thompson described a devious trojan horse attack on a unix system, which most people now refer to as thompson's rigged compiler. this attack rst changes the binary version of the login program to add a backdoor, say, to allow a new user, 12345, that has password, 67890, which is never checked against the password le. thus, the attacker can always login to this computer using this username and password. then the attack changes the binary version of the c compiler, so that it rst checks if it is compiling the source code for the login program, and, if so, it reinserts the backdoor in the binary version. thus, a system administrator cannot remove this trojan horse simply by recompiling the login program. in fact, the attack goes a step further, so that the c compiler also checks if it is compiling the source code of the c compiler itself, and, if so, it inserts the extra code that reinserts the backdoor for when it is compiling the login program. so recompiling the c compiler won't x this attack either, and if anyone examines the source code for the login program or the c compiler, they won't notice that anything is wrong. now suppose your unix system has been compromised in this way (which you con rm by logging in as 12345). how can you x it, without using any outside resources (like a fresh copy of the operating system)?
Answers
In case of Trojan infection, There are general incident response procedures you really should follow: Disconnect, Assess, Change security information, Fix, Normalize, Analyze.
Disconnect:
As long as you're network connected, those trojans may continue to reach out to C&C servers and come up with new badness.
Assess:
Figure out what's happening. Maybe other systems in your network are also affected.
Change security information:
You MUST assume that any security information you had on this server was compromised. This means any passwords, certificates, tokens, etc that live on the server should be changed, revoked, or otherwise become untrusted.
Fix:
It's often not worth removing trojans. In many cases, modern malware is extremely resilient to removal attempts. Rebuild the system or restore from backups. If restoring from backups, make sure to scan as soon as the restore is complete - roll back even farther if necessary.
I'm not immediately able to find much information on removal of the two trojans identified in your scan results. That's a little worrisome to me. I strongly recommend building from scratch over removing the trojan.
Normalize:
Reconnect to the network, make sure everything is working as it was before this happened.
Analyze:
How did you get the trojan? Is someone doing something wrong? Can you harden firewall rules, security policies, update software, etc to improve your posture going forward?
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What is the denotation of the word desperate? in need of excited about overlooked for interested in
Answers
The denotation of the word desperate is known to be "in need of".
Who is a desperate person?A desperate person is known to be a person that is willing to do any thing so that they get what they wants as they are really in need of that thing.
Therefore, due to the above, the denotation of the word desperate is known to be "in need of".
See full question below
Read the excerpt from "Finding Unity in the Alabama Coal Mines.” The coal companies, in response, recruited workers from as far as New York’s Ellis Island, where newly arriving immigrants were desperate for jobs. What is the denotation of the word desperate? in need of excited about overlooked for interested in
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Answer:
A)The denotation of the word desperate is known to be "in need of".
Explanation:
write about the various components of Windows operating system
Answers
Answer:
The main components of the Windows Operating System are the following:
Configuration and maintenance.
User interface.
Applications and utilities.
Windows Server components.
File systems.
Core components.
Services.
DirectX.
Explanation:
_____ is the process of using procedures from statistics and computer science to extract useful information from extremely large databases
Answers
The process of using procedures from statistics and computer science to extract useful information from extremely large databases is called data mining.
Data mining is the process of utilizing techniques from statistics and computer science to extract valuable insights and knowledge from vast and complex databases. It involves applying various algorithms, statistical models, and machine learning methods to discover patterns, relationships, and trends within the data. By examining large datasets, data mining aims to uncover hidden patterns, identify anomalies, and generate predictive models for decision-making and future forecasting. This iterative process involves data preprocessing, exploratory analysis, model building, and result interpretation. Data mining plays a crucial role in areas such as business intelligence, customer segmentation, fraud detection, market analysis, and personalized recommendations, enabling organizations to derive actionable insights from their data.
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difference between integrated package and software suite
Answers
Answer:
1) Low cost. It is affordable for the small business.
2) Convenient. An integrated package lets users juggle multiple tasks with similar ease. Switching between the individual applications in an integrated package usually requires a few keystrokes or mouse clicks.
3)Able to share information between modules. As its name implies that integrated packages typically make it easy to transfer, integrated data from one application to another. For example, after making financial calculations in a spreadsheet, we could copy the results directly into a project proposal being written with the word-processing module.
4)Each individual modules generally share a similar command structure. For this reason, procedures learned in one module can be applied to other activities as well.
Explanation:
character strings and dates in the where clause must be enclosed with single quotation marks (' '). true or false?
Answers
The given statement "Character strings and dates in the where clause must be enclosed with single quotation marks" is True because if you do not use single quotation marks, the database engine may misinterpret the character string or date as a column name or produce an error due to incorrect syntax.
When using character strings and dates in the WHERE clause of SQL queries, it is essential to enclose them in single quotation marks (' '). This is because SQL treats these data types differently than numerical values. Enclosing them in single quotation marks ensures that the database engine correctly interprets them as character strings or dates.
Character strings are sequences of characters, such as words or sentences, that must be treated as a single entity. Dates are specific points in time, typically represented in a standard format like "YYYY-MM-DD." Both character strings and dates are non-numeric data types and therefore need to be differentiated from numerical values in the query.
For example, when filtering records based on a character string or a date, the correct syntax would be:
SELECT * FROM tableName WHERE columnName = 'stringValue';
or
SELECT * FROM tableName WHERE columnName = 'YYYY-MM-DD';
If you do not use single quotation marks, the database engine may misinterpret the character string or date as a column name or produce an error due to incorrect syntax. Always enclosing character strings and dates in single quotation marks in the WHERE clause is a crucial step for accurate and error-free SQL queries.
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which answer illustrates “compound interest”
Answers
Answer:
d- you earn interest on the money in your savings account. Then you, in addition earn interest on interest
Explanation:
The compound interest means the interest i.e. earned on the money that saved by you and the interest you earned.
Therefore as per the given options, the last option is correct as it represents the interest earned in the saving account plus it earns interest on interest
Hence, all the other options are incorrect
in the no trade example, total world production of computers is _______, of which _______ are produced in the united states.
Answers
In the no trade example, total world production of computers is "X" units, of which "Y" units are produced in the United States.
Without specific data, we cannot provide exact values for X and Y, but the explanation below will help you understand the concept. In a scenario where there is no international trade, countries must rely on their domestic resources and industries to produce goods and services. For the computer industry, this means that each country would have to produce its own computers based on its available resources, labor, and technology. In the United States, a technologically advanced country with a skilled workforce, the production of computers may be relatively high compared to other countries.
However, without trade, the U.S. and other countries might not be able to fully utilize their comparative advantage - the ability to produce goods and services at a lower opportunity cost than other countries. In a global economy with free trade, countries can specialize in industries where they have a comparative advantage and exchange goods and services, leading to greater overall efficiency and welfare. This would increase total world production of computers and allow countries to access a wider variety of products at lower prices.
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Please help with this code!
Answers
import random
months = ["jan", "feb", "mar", "apr", "may", "june", "july", "aug", "sept", "oct", "nov", "dec"]
pick1 = random.choice(months)
pick2 = random.choice(months)
if months.index(pick1) < months.index(pick2):
print(pick1)
print(pick2)
else:
print(pick2)
print(pick1)
Since the months are already in chronological order in the list, we can compare their index and print the string with the smaller index first. I wrote my code in python 3.8. I hope this helps.
Your client is interested in testing six-second bumper ads. What are two tips you can share with them about these ads? (Choose two.)
Answers
Two tips for testing six-second bumper ads are to keep the message simple and focused, and to optimize for mobile viewing.
What are two tips for testing six-second bumper ads?Keep the message simple and focused: Due to the short duration of six seconds, it is crucial to convey a concise and clear message that captures the audience's attention. Avoid cluttering the ad with excessive information or complex narratives. Optimize for mobile viewing: Since bumper ads are commonly viewed on mobile devices, it's important to ensure that the ad is optimized for mobile screens. Use large, legible text and visually engaging elements that are easily viewable on smaller screens, maximizing the impact of the ad within the limited timeframe.Learn more about bumper
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Whenever I rate an answer to a question, it says so and so finds it helpful. It's always the same people that they say find it helpful. No matter how fast or slow I do it, the results are the same. And it happens on every single question. Does this happen automatically? Are these bots? If so, why? I need an explanation.
Answers
Answer:
I think they are bots
Explanation:
First time using this site so be mindful if I make any mistakes
For Micro Econ AP I am having a problem with this one question
It goes:
In what ways do households dispose of their income? How is it possible for a family's persoal consumption expenditures to exceed its after-tax income?
Answers
Answer:
Okay... Well
I will. help you out dear
why do we use if statements in javascript? to break out of some block of code to do something only if a condition is true
Answers
To break out of some block of code
To do something only if a condition is true
Why are if statements used in JavaScript?If a particular condition is true, use if to specify a block of code to be run. If the same condition is false, use otherwise to define a block of code to be run. If the first condition is false, use else if to define a new condition to test.
Summary. The IF statement is a decision-making statement that directs a program’s actions depending on predefined criteria. The IF statement runs one set of code if a stated condition is satisfied (TRUE) or another piece of code if the condition is not met (FALSE).
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2.
Solve each equation.
a)
3n - 8 = 2n + 2
b)
4n + 75 = 5n + 50
Answers
Answer:
A) n=10
B) n=25
Explanation:
Mind marking me brainliest?
Prompt
What is a column?
Answers
Answer:
A column is a vertical group of values within a table. It contains values from a single field in multiple rows. ...
A column is a vertical group of values within a table. It contains values from a single field in multiple rows.
Why prompt is used?Since we can choose only one of the prompts, let's work with prompt A. We can answer it in the following manner edgar Allan Poe believed that a good short story must have a single, unifying effect. He did apply that concept to his own short stories. Let's briefly analyze "The Fall of the House of Usher."
In the story, every element contributes to the story's effect: the setting, the characters, the dialogue, the word choice and the mood, among others. From the beginning, the narrator describes an "oppressive" weather. He proceeds to let us know that his friend Usher looks sick and strange. The house where Usher lives is also quite eerie. And to top it all, Usher's sister, who was buried alive, has returned for revenge.
Poe believed a good short story should possess a single, unifying effect, and that everything in the story should contribute to that effect. He achieves that in his short stories, where every element (characters, setting, imagery, word choice, etc.) contributes to the feeling of tension, anxiety, even horror.
Therefore, A column is a vertical group of values within a table. It contains values from a single field in multiple rows.
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