To create and save a nologin file, you need to open the terminal and create a new file. Then, press the "i" key to enter insert mode and start typing the content of the file. Press the "Esc" key to exit insert mode. Finally, type ":wq" to save the file.
To create a new file in vi, you would first need to open the vi editor by typing "vi" followed by the name of the file you want to create. In this case, you would type "vi nologin" to create a file called "nologin". Once you have opened the file, you will be in command mode, which means you cannot directly enter text into the file.
To enter text into the file, you need to switch to insert mode by pressing the "i" key. This will allow you to enter text directly into the file. Once you have finished entering the text, you can save the file by switching back to command mode by pressing the "Esc" key.
To save the changes you have made to the file, you can type ":wq" and press Enter. This will save the file and exit the vi editor. If you want to save the file without exiting the vi editor, you can type ":w" and press Enter to save the changes. If you want to exit the editor without saving any changes, you can type ":q!" and press Enter.
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What are the different types of peripherals and give some examples in each category? What do you think would be a really cool type of peripheral that could be developed in the future?
Explanation:
Remember, peripheral devices are portable devices connected to a computer in other to add more functionality to the computer system such as a printer, mouse, hard drive, CD-ROM, etc.
A really cool type of peripheral that could be developed in the future is a voice-enabled mouse that can perform normal operations on the computer.
during a web site production design phase what might happen? the template is transformed into a working web site. the completed and approved site is birthed to the world. suggestions may be offered to their clients about how to keep the site running smoothly. the wireframe is developed to look like the final product, often in photoshop. it involves specifying the updates and tasks necessary to keep the web site fresh, functioning, and useable.
From the question; the template is transformed into a working web site. Option A
What is website design?The process of designing and organizing different aspects to generate an attractive and useful website is referred to as website design. It includes a website's design, navigation, and user experience. The process of designing and creating a website incorporates both creative and technical elements.
In order to build interesting and useful websites that satisfy the needs of the customer and the target audience, website design is a multidisciplinary subject that combines creativity, user experience, and technological expertise.
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occurs when multiple users make updates to the same database at the same time. a. data recovery b. rollback c. concurrent update d. atomicity
The answer is c. concurrent update. This occurs when multiple users make updates to the same database at the same time. It can cause conflicts and inconsistencies in the data,
which need to be managed through techniques such as locking, timestamps, and conflict resolution algorithms. Atomicity and data recovery refer to different aspects of transaction processing, while rollback is a technique for undoing changes made to a database.
Optimize update performance by making updates concurrently, for example, with multiple concurrent update clients. The amount of performance improvement is limited by the speed of the disk system on the master and in a replicated environment on the replica servers.
A concurrent update conflict can occur in a multi-user environment when another user modifies a row in a particular table between the time you fetch the row from that table, and the time you modify and attempt to commit it.
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Visit a major network news Web site and view a video of a commentator such as Rachel Maddow or Joe Scarborough (MSNBC) Anderson Cooper (CNN) Sean Hannity or Tucker Carlson (Fox News). Identify the topic of the segment that you viewed. Include a brief summary of the segment. Describe the commentator’s point of view. If you were giving a presentation to inform, would you express your point of view in a similar style?
I watched a recent segment featuring Rachel Maddow on MSNBC. The topic of the segment was the ongoing investigations into the January 6th insurrection at the United States Capitol. In the video, Maddow discussed recent developments in the investigation, including subpoenas issued to key individuals and the challenges faced by the bipartisan committee.
Rachel Maddow's point of view was clear: she expressed concern about the progress of the investigation and emphasized the importance of holding those involved accountable for their actions. Her delivery was factual and informative, but she also conveyed a sense of urgency and emotion in her presentation.
If I were giving a presentation to inform, I would strive to express my point of view in a similar style to Rachel Maddow. While maintaining professionalism and providing accurate information, it is crucial to engage the audience by conveying passion and concern about the topic. This balance helps create an informative and captivating presentation that encourages audience members to care about the subject matter and consider the implications of the information provided.
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how has the dependence on technology made humanity less intelligent?
Answer:
People now rely on the internet for answers.
Nobody truly learns stuff and keeps it with them anymore. They know they can just search it again, and get the answer.
What are the uncertainties in intrusion analysis known as?
In real-time situations, the intrusion detection systems can only capture the indications of the attack. They fail to ascertain whether an attack has occurred. The uncertainties in intrusion analysis are called
______ uncertainties
The uncertainties in intrusion analysis are called threats or suspicious activities.
What does intrusion detection system detect?An Intrusion Detection System (IDS) is known to be a type of monitoring system that helps one to be able to find out any form of suspicious activities and brings about a form of alerts when they are found.
Note that because of these alerts, a security operations center (SOC) analyst or any form of incident responder can look into the problem and take the right actions to keep the threat in check.
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Answer: dynamic
Explanation:
I got a 100 on the test
in c, the evaluation of a boolean expression stops as soon as its truth value is known. what is the name of this property?
The name of the property in C where the evaluation of a boolean expression stops as soon as its truth value is known is called "short-circuit evaluation."
In C, boolean expressions are evaluated from left to right, and the evaluation stops as soon as the truth value is known. For example, in the expression "A && B", if A is false, then the entire expression is false, and the evaluation of B is not necessary. This is because the entire expression cannot be true if A is false, regardless of the value of B.
Similarly, in the expression "A || B", if A is true, then the entire expression is true, and the evaluation of B is not necessary. This is because the entire expression cannot be false if A is true, regardless of the value of B.
Short-circuit evaluation is a useful feature in C because it can save processing time and prevent unnecessary computations, especially in situations where the evaluation of an expression involves expensive or time-consuming operations.
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in c, the evaluation of a boolean expression stops as soon as its truth value is known. This property is called short-circuit evaluation.
In C, the logical operators && and || perform short-circuit evaluation. This means that when evaluating a boolean expression, if the truth value can be determined by evaluating only part of the expression, the remaining part will not be evaluated. For example, in the expression "a && b", if "a" is false, the entire expression is false, regardless of the value of "b". Therefore, "b" is not evaluated. Similarly, in the expression "a || b", if "a" is true, the entire expression is true, regardless of the value of "b", and "b" is not evaluated. This property can be useful for avoiding unnecessary computations, especially when evaluating expressions that may have side effects, such as function calls or assignment statements.
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Question # 6 Fill in the Blank You designed a program to create a username using the first three letters from the first name and the first four letters of the last name. You are testing your username program again for a user whose name is Paula Mano. The output should be
Its PuaMano
Explanation:
got it wrong and it shows this answer for edge
Logan is creating a program using an integrated development environment which of the following is not a function of an IDE
A. a place for coders to write out code
B. a place for coders to test code
C. a place where code is converted to binary code
D. a place where code is downloaded for free
computer hacking would be placed under which category in wall's typology of cybercrime? computer hacking would be placed under which category in wall's typology of cybercrime?
Computer hacking would be placed under cyber-trespass category in wall's typology of cybercrime.
What is software trespass?Intentionally accessing, altering, deleting, or otherwise interfering with a computer without authorisation is considered computer trespass.
Therefore, a computer trespass is defined as getting access to a secured computer without the necessary authorization and taking financial information, departmental information, or agency information. Although each state has its own rules involving computer trespassing, they all in some way mirror the federal legislation.
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create a comic strip about prepering hand tools for operation and safety
paaa helppp
Answer:
Hammer stools
ahsnsksns
The user enters a URL into a web browser, the web browser sends the information to the DNS server to look up the IP address, then the IP address is sent to the web (host) server. What is the final step in the DNS process?
A) The client sends a request to the DNS server.
B) The DNS server the IP adress back to the URL.
C) The process starts over back at the beginning.
D) The web server sends information back to the web broswer.
The final step in the DNS process is The web server sends information back to the web broswer.
What occurs when you enter a URL in one's browser?Note that if you enter a URL into a web browser. The browser is said to search for the IP address for the domain name through the use of DNS.
Furthermore, The browser then sends a HTTP request to the server and the server is known to also sends back a HTTP response back.
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Which type of database program is Microsoft Access 2016?
O knowledge
O local data
O relational
O flat-file
Answer:
O relational
Explanation:
If I'm wrong I'm so so sorry! But form my research it keeps saying its relational.
If I'm right please give me brainliest I really need it to level up so please help me!
If you don't know how to give brainliest there should be a crown underneath my answer you just have to click it.
Thank you and have a wonderful night,morning,afternoon/day! :D
Answer:
Which type of database program is Microsoft Access 2016?
relational
Explanation:
Which answer best describes a variable group of answer choices has a data type has a name has an address all answers are correct stores a value that can change
A variable is a name given to a memory location. The value stored in a variable can be changed during program execution.
In research endeavors, the word "variable" is commonly employed. When designing quantitative research, the variables must be defined and identified.projects. Rather than constants, a variable sparks more interest in study. To understand this word and the associated concepts, it is crucial for those just starting out in research.
An object that can change or have more than one value is referred to as a variable, to put it simply. '' One definition of a variable is "something that varies," as the name suggests. Weight, height, anxiety levels, wealth, body temperature, and so on are a few examples. Each of these qualities differs from person to person and also has various values along a continuum.
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complete question:
Which answer best describes a variable
a)has a data type
b) has a name
c)has an address
d) all answers are correct
e)stores a value that can change
2) Prompt the user for his/her favorite 2-digit number, and the output is the square root of the number.
num = int(input("What's your favorite 2-digit number? "))
print("The square root of {} is {}".format(num, (num**0.5)))
I hope this helps!
you are working on an ipv6 address 2608:fe10:1:aa:002:50ff:fe2b:e708. you want to create subnets within this ip address. which of the following will you choose to alter when creating subnets for this address?
The following will you choose to alter when creating subnets for the address is 2608.
What are subnets?Subnets are defined as a partition of an IP network logically. A network can be divided into two or more networks via a method called subnetting. A subnet mask is used to divide an IP address in half. Subnetting separates broadcast domains to effectively route traffic, enhancing network performance and speed.
The site prefix is 2608:FE10:1:AA and the interface ID is 002:50FF:FE2B:E708 in the IPv6 address 2608:FE10:1:AA:002:50FF:FE2B:E708. Site prefixes may be displayed as, for instance, 2608:FE10:1:AA::/64, where the network's bit count is listed after a slash.
Thus, the following will you choose to alter when creating subnets for the address is 2608.
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Explain the difference between a run-time error, or defect, and a logic error, in a program
pertaining to java
Runtime errors occur when a program is executing, whereas logic errors occur when the program's logic is incorrect or does not fulfill the intended purpose.
Runtime error (also known as an exception or defect) is an error that occurs when a program is executing. When a runtime error occurs, a message is typically displayed that describes the error that has occurred. Some typical examples of runtime errors include memory errors, division by zero, and invalid input or output.
A logic error, on the other hand, occurs when the program's logic is incorrect or does not fulfill the intended purpose. In other words, the program does not behave as expected, even though it appears to be running correctly.
Logic errors are more difficult to detect and debug than runtime errors because they do not result in an error message or crash, but rather produce unexpected results. This type of error may be caused by incorrect algorithm implementation or misunderstandings of the problem statement.
Therefore, the difference between runtime errors and logic errors in a Java program is significant. While runtime errors can be identified and corrected during the program's execution, logic errors are more difficult to identify because they do not cause the program to crash but produce unexpected results.
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the 64-bit intel processor called x64 (or x86-64) has how many register?
The x64 architecture, also known as x86-64, is a 64-bit extension of the original x86 instruction set architecture. It was introduced by AMD in 2003 and later adopted by Intel. The x64 architecture supports a larger memory address space and increased processing power, making it suitable for high-performance computing and large-scale applications.
In terms of the number of registers, the x64 architecture has 16 general-purpose registers, which are divided into several categories. The first eight registers, named RAX, RBX, RCX, RDX, RSI, RDI, RBP, and RSP, are used for data processing and storage. The remaining eight registers, named R8 to R15, are available for use by application programs and operating systems.
In addition to the general-purpose registers, the x64 architecture also has several other specialized registers, including the instruction pointer register (RIP), the floating-point registers (XMM0 to XMM15), and the flags register (RFLAGS). These registers are used for various purposes, such as controlling program flow, storing floating-point data, and storing status information.
Overall, the x64 architecture provides a robust set of registers that enable high-performance computing and efficient data processing. By utilizing these registers effectively, software developers can create powerful applications that take advantage of the full capabilities of modern 64-bit processors.
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Write the definition of a method printAttitude, which has an int parameter and returns nothing. The method prints a message to standard output depending on the value of its parameter.
Answer:
void printAltitude(int alt) {
printf("Current altitude is %i meters.", alt)
}
Explanation:
First declare the function saying that it won't return anything (void), then you say thatbit uses one parameter that is a Integer number (int). This parameter is stored as "alt", that you use it to print a new line by formatting it with %i.
Which of the following is one aspect of gaming that goes relatively unnoticed but
has a huge outcome on the realistic accuracy of the game *
A. Pixel size of screen
B. Frame Rate
C. Character Development
D. Use of Game Physics
Answer:
frame rate
Explanation:
how to save pictures on a chromebook without right-click
screen shot is easier
Workplace ethics include playing games. looking up things on the internet that are not work related. taking care of personal business without permission during work time. doing the work you have agreed to do while at work.
Answer:
Doing the work you have agreed to do while at work
Explanation:
I'm not sure what exactly there is to explain. The other options are not things that should be done in the workplace
Ingrid has to wlite a research report for her company, but she has never done this before. What should she be sure to do to create a professional report?
A.Use a wide variety of colors and sizes in her fonts.
B. Provide references and data to support her research.
C.Leave generous amounts of white space on each page.
D.Avoid using charts, tables, and other graphics.
B. Provide references and data to support her research.
How should Ingrid do this?Ingrid should be sure to provide references and data to support her research. This will make her report more professional and credible. She should also ensure that she uses proper formatting, grammar, and punctuation.
Additionally, she should avoid using overly complex language or technical jargon that may be difficult for her audience to understand. It is also important for Ingrid to organize her report in a logical and easy-to-follow manner, including headings and subheadings, and leaving generous amounts of white space on each page to enhance readability.
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A support person has verified that an employee's system is fully functioning. What is the next step in the troubleshooting theory?
Answer:
Document findings, actions and outcomes.
Explanation:
The troubleshooting process can be defined as the sequential steps that are to be taken while trying to proffer a solution to a problem, usually on computer systems.
The seven (7) steps of the troubleshooting process in ascending order are;
1. Identify the problem.
2. Establishing a theory of probable cause of the problem.
3. Test the established theory to determine cause.
4. You should establish a plan of action to resolve the problem while identifying its potential effects.
5. Implement a solution.
6. Verify full system functionality.
7. Document findings, actions and outcomes.
Since the support person has verified that an employee's system is fully functioning. The next step in the troubleshooting theory is to document findings, actions and outcomes in order to preserve the information on the cause of the problem and steps taken to resolve it. Documentation is usually done for reference purposes.
snow is a _ that can affect the structural durability of building products
Snow is a factor that can affect the structural durability of building products.
Snow can cause damage to building materials such as roofs, walls, and foundations, leading to issues such as leaks, cracks, and weakening of the structure. The weight of accumulated snow can also put stress on the building, potentially causing a collapse in extreme cases. Therefore, it is important for buildings in snowy climates to be designed and constructed with these factors in mind, and for regular maintenance and snow removal to be conducted to ensure the durability and safety of the structure.
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You have just purchased a motherboard that has an LGA 1156 socket for an Intel Pentium processor. What type of memory modules will you most likely need for this motherboard? A. DIP B. SIMM C. DIMM D. SODIMM
Answer:
The answer is "Option C"
Explanation:
The term DIMM stands for the Dual In-Line Memory Module, which is a kind of memory, that is used in computers. It is a small board of flash memory that uses the 64-bit memory bus because the SIMM has only a 32-bit path. It enables DIMMs to simultaneously transfer more information, and the wrong choices can be defined as follows:
In choice A, It is used in sockets, that's why it is wrong. In choice B, It is wrong because it is used in 32 bits only. In choice D, It is wrong because it is used in the expansion of memory.The CPU is often called the
of the computer.
Answer:
Explanation:
Tower?
Answer:
Its often called the brains of a computer.
Explanation:
what features of a database schema are identified during the analysis phase of the sdlc? hint: three features.
Answer:
The five phases of SDLC are planning, analysis, design, implementation, and maintenance.
The database life cycle consists of four phases: requirements analysis, design, implementation, and maintenance.
For this exercise, you are going to write your code in the FormFill class instead of the main method. The code is the same as if you were writing in the main method, but now you will be helping to write the class. It has a few instance variables that stores personal information that you often need to fill in various forms, such as online shopping forms.
Read the method comments for more information.
As you implement these methods, notice that you have to store the result of concatenating multiple Strings or Strings and other primitive types. Concatenation produces a new String object and does not change any of the Strings being concatenated.
Pay close attention to where spaces should go in theString, too.
FormFillTester has already been filled out with some test code. Feel free to change the parameters to print your own information. If you don’t live in an apartment, just pass an empty String for the apartment number in setAddress.
Don’t put your real credit card information in your program!
When you run the program as written, it should output
Dog, Karel
123 Cherry Lane
Apt 4B
Card Number: 123456789
Expires: 10/2025
The computer code in the FormFill class will be:
class FormFill
{
private String fName;
private String lName;
private int streetNumber;
private String streetName;
private String aptNumber;
// Constructor that sets the first and last name
// streetNumber defaults to 0
// the others default to an empty String
public FormFill(String firstName, String lastName)
{
fName = firstName;
lName = lastName;
streetNumber = 0;
streetName = "";
aptNumber = "";
}
// Sets streetNumber, streetName, and aptNumber to the given
// values
public void setAddress(int number, String street, String apt)
{
streetNumber = number;
streetName = street;
aptNumber = apt;
}
// Returns a string with the name formatted like
// a doctor would write the name on a file
//
// Return string should be formatted
// with the last name, then a comma and space, then the first name.
// For example: LastName, FirstName
public String fullName()
{
return(lName+", "+fName);
}
// Returns the formatted address
// Formatted like this
//
// StreetNumber StreetName
// Apt AptNumber
//
// You will need to use the escape character \n
// To create a new line in the String
public String streetAddress()
{
return(streetNumber+" "+streetName+"\n"+aptNumber);
}
// Returns a string with the credit card information
// Formatted like this:
//
// Card Number: Card#
// Expires: expMonth/expYear
//
// Take information as parameters so we don't store sensitive information!
// You will need to use the escape character \n
public String creditCardInfo(int creditCardNumber, int expMonth, int expYear)
{
return("Card number: "+creditCardNumber+"\nExpires: "+expMonth+"/"+expYear);
}
What is a code?Computer code, or a set of instructions or a system of rules defined in a specific programming language, is a term used in computer programming ie., the source code.
It is also the name given to the source code after a compiler has prepared it for computer execution i.e., the object code.
Writing codes that a machine can understand is the focus of the programming activity known as coding.
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SQL DML Query in MySQL SQL Query from A Single Table IS 4420, Database Fundamentals I. DDL We create the following tables in Lecture 7 1. Customer 2. Product 3. Orders 4. Orderline II. DML: Insert data into tables Use the code in Lecture8.rtf to insert data III. DML: query 1. List all data records for all four tables 2. List IDs of products in descending order 3. List the cities (distinctly) for the customers 4. List all orderlines have quantity more or equals to 5 5. List all columns of product with the name that contains the string 'laptop 6. List customers who lived in city 'Tucson 7. Count the number of customers in each city. Show the name of the city and corresponding count. 8. List all orders after and on 2008-11-01 9. List all orders between 2008-10-24 and 2008-11-01 inclusive (including both dates) 10. What is the average price for product that is more than $50? 11. List all customers who do not live Salt Lake City. 12. List all customers who are from SLC and whose name starts with the letter 13. List all product ids that show more than twice in orderline table IV. Deliverables 1. Submit the lab8.txt file that contains your SQL statements to canvas
The task requires writing SQL statements to perform various operations on a set of tables (Customer, Product, Orders, Orderline) in a MySQL database.
To complete the task, you need to write SQL statements that fulfill the given requirements. These statements involve inserting data into the tables using the code provided in Lecture8.rtf, querying data records from all four tables, listing product IDs in descending order, listing distinct cities for customers, listing orderlines with a quantity greater than or equal to 5.
listing product columns with names containing the string 'laptop', listing customers from the city 'Tucson', counting the number of customers in each city, listing orders after and on a specific date, listing orders between two specific dates, calculating the average price for products over $50, listing customers not from Salt Lake City, listing customers from SLC with names starting with a specific letter, and listing product IDs that appear more than twice in the orderline table.
The final deliverable is a lab8.txt file containing all the SQL statements required to perform the above operations.
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