What are the most common malware types? How do you safeguard computer systems against malware? Why do you need to train users of computer systems to be vigilant about malware? What are some of the most recent malware attacks that you read or herd about in the news media?
Common Malware Types:
· Viruses
· Worms
· Trojans
· Ransomware
· Spyware
· Adware
Protections From Malware:
· Firewall Software
· Anti-Virus Software
Does anybody have the 4.2 Code Practice:Question 1 "Python"
Answer:bail
Explanation:
which is true? question 4 options: a reference variable contains data rather than a memory address the new operator is used to declare a reference a reference declaration and object creation can be combined in a single statement three references can not refer to the same object
A reference variable contains the data of an object it refers to, a reference declaration and object creation can be combined in a single statement, but multiple references can refer to the same object.
It is accurate to say that a reference variable holds data as opposed to a memory location. A reference in C++ is an alias for an object, and when you declare a reference, you are declaring a new name for an existing object, rather than creating a new object. The reference acts as an alternative name for the object, and accessing the reference is the same as accessing the original object. So, when you use a reference, you are accessing the data stored in the referenced object, not the memory address of the object.
It is untrue to say that "the new operator is used to declare a reference." The new operator is used to dynamically allocate memory for an object and return a pointer to the newly created object. It is not used to declare a reference.
It is true that you can combine the creation of an object and a reference declaration in a single statement. When you declare a reference, you must initialize it with an existing object, and you can do this by declaring the reference and creating the object in the same statement. For example:
int &x = *(new int(10));
In this example, a new integer object with the value 10 is created using the new operator, and a reference x is declared and initialized to the new object.
It is untrue to say that three references cannot all refer to the same item. It is possible for multiple references to refer to the same object. When you declare multiple references to the same object, they are all alternative names for the same data, and changing the value through one reference will change the value for all references that refer to the same object.
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when users want to find answers to questions in a microsoft access database such as the balance of accounts receivable, which function do they use?
In Microsoft Access, users would use a query to find answers to questions such as the balance of accounts receivable.
When users want to find answers to questions in a Microsoft Access database, such as the balance of accounts receivable, they would use a query. A query is a database object in Access that allows you to retrieve specific information from one or more tables based on certain criteria. Queries can be used to perform calculations, such as summing values in a column, and display the results in a readable format. By using a query, users can quickly and easily find the information they are looking for, without having to manually search through the entire database.
Queries in Access can be created using the Query Design View or by using the Query Wizard. The Query Design View provides users with a visual representation of the data and allows for more complex and advanced query operations, while the Query Wizard provides a step-by-step process for creating simple queries. Both methods allow users to select specific columns, apply criteria, and sort the data to display only the information they need. Queries can also be saved and reused, making it easier for users to access the same information in the future.
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how should the things that establish personal identity (passwords, access tokens, etc.) be protected?
Personal identity should be protected with strong authentication methods.
What is authentication?Authentication is the process of verifying the identity of a user, device, or other entity in a computer system, usually as a prerequisite to granting access to resources in a network, application, or that other system. Authentication typically involves validating a username and password combination, but it can also involve biometric data, such as fingerprints or voice recognition, or digital certificates. The goal of authentication is to ensure that only authorized users can access the system, and that the information they view or modify is accurate and secure.
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when a client requests a dynamic web page, the html is generated by
When a client requests a dynamic web page, the HTML is generated by the web server.
What is a Web Server?The hardware and software that make up a web server allow it to accept HTTP or HTTPS queries.
A web server is a machine that houses web server software and the files that make up a website (for example, HTML documents, images, CSS stylesheets, and JavaScript files).
A web server establishes a connection to the Internet and facilitates the physical data exchange with other web-connected devices.
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question 14 :there are two tables in your database: students and identification resources. each student only has one identification resource and only one identification resource can be associated with each student. what is unique about the relationship between these two tables?
A field's primary key is the value that uniquely identifies each entry in a table. Due to its distinctiveness, the primary key forbids the entry of duplicate records or a null value in that field.
What command updates a database table with one or more records?
When you need to add new records to an existing table using data from other sources, you use an append query. An update query can be used to modify data in a collection of records that already exist, such as changing a field's value.
What three different kinds of relationships between database tables are there?
You are likely to meet one of three different sorts of relationships between the data at this point in the design: one-to-one, simultaneously many-to-many and one-to-many. You must look at the data and be conscious of the rules that apply to the data and tables in order to be able to spot these associations.
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the fact that many individuals have their phone out and are browsing the web and texting while watching a sporting event on television is an example of .
the fact that many individuals have their phone out and are browsing the web and texting while watching a sporting event on television is an example of C. streaming video services.
What is web browsing?An application used to visit webpages is called a web browser. The browser obtains the page's files from a web server and then shows the page on the user's screen when they request a web page from a certain website. On a variety of gadgets, such as PCs, laptops, tablets, and smartphones, browsers are used. An estimated 4.9 billion people will have used a browser by the year 2020. With a 65% global market share across all devices, is the most popular browser, followed by with 18%. Despite the fact that they are sometimes mistaken, a web browser and a search engine are not the same thing. A website that offers links to other websites is referred to as a search engine.
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q2.1: given the information from the gdb memory dump, what two lines get printed by q2()? hint: try and find where the two constants are in the stack. what information in the gdb dump could you have used to find those constants, if you didn't know their actual values?
Based on the information from the GDB memory dump, it appears that the two lines printed by q2() are: Hello world and Goodbye world
The two constants that get printed can be found on the stack. To find the constants if their actual values are unknown, you can use the memory addresses and the x command in GDB to inspect the contents of the memory at those addresses. The output of the x command will give you the hexadecimal representation of the memory contents, which can then be interpreted as ASCII characters if they represent text.
For example, to find the first constant, you could use the following GDB command:x/s 0x7fffffffdcbc
The output of this command will show the contents of the memory at address 0x7fffffffdcbc, which is the first constant. Similarly, to find the second constant, you could use the following GDB command: x/s 0x7fffffffdcc4
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a meter installed on a computer that records internet user behavior by tracking actual mouse clicks would be what type of method for collecting observational data?
Mechanical type of method for collecting observational data.
Data processing using devices or machines is referred to as "mechanics" Calculators, typewriters, and other devices may be among the tools that assist people in data processing. There is no doubt that this method is quicker, simpler, and more accurate than manual data processing. 3) Processing of electronic data
The newest and quickest method of processing data is this one. Computer assistance is used to process data. Data and a set of instructions are first given to the computer.
Following data processing in accordance with instructions, computers output results. This technique for processing data is both quick and precise. There are many institutions that use electronic data processing, including banks, businesses, government agencies, colleges, schools, and universities. Nearly every aspect of life uses electronic data processing.
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true or false. the courts in the united states have determined that unix and linux are the same thing as far as intellectual property rights are concerned.
The above given statement is False.
The courts in the United States have not determined that Unix and Linux are the same thing as far as intellectual property rights are concerned. Unix and Linux are separate and distinct operating systems with their own unique codes and designs. While Linux is open source and based on Unix, it is not considered a direct derivative of Unix, and has its own set of intellectual property rights and licensing requirements. As a result, it is not accurate to say that Unix and Linux are the same thing in terms of intellectual property rights.To know more about linux visit:
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what can be used to reduce the risk of a trojan program or rootkit sending information from an attacked computer to a remote host?
Antimalware is a kind of computer software designed to safeguard against harmful software, sometimes known as malware trojan programs, on both corporate and personal computers.
What kind of Trojan allows unauthorized remote access to a compromised system?Trojans that allow threat actors to take remote control of a system are known as backdoors.
What kind of vulnerability places executable code in the computer's memory and grants the attacker more permissions?Return-oriented programming (ROP) is a computer security exploit technique that lets an attacker run code even when security measures like executable space protection and code signing are in place.
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assume the variable x has been assigned a floating-point value. write a statement that uses the print function and an f-string to display the value of x rounded to 1 decimal point, with comma separators. for example, if x is assigned the value 123477.7891, the statement would display:
print(f"The value of x rounded to 1 decimal place: {x:,.1f}").If the value 123477.7891 is given to x, the following would be shown: 123,477.8 is the value of x.
The statement uses an f-string, which is a way to embed expressions inside string literals in Python. An f-string starts with the letter "f" followed by a string literal in curly braces ({}).
The expression inside the curly braces {x:,.1f} performs the following actions:
The value of the x variable is rounded to 1 decimal point using the .1f format specifier. The .1f specifies the number of decimal places to round the value to.
The , inside the format specifier adds a comma separator to the value, making it easier to read large numbers.
Finally, the f-string is passed as an argument to the print function, which displays the formatted string on the console.
Here is an example of how this statement could be used in a complete program:
x = 123477.7891
print(f"The value of x using comma separators and rounded to one decimal point is: {x:,.1f}")
This would produce the following output:
The value of x rounded to 1 decimal place with comma separators is: 123,477.8
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which commands (constructs) do not have a loop when expressed in syntax graphs? select all that apply
If-then-else and switch (expr) { case value: statements ;} do not have a loop when expressed in syntax graphs.
Command is a directive given to a computer program or operating system to carry out a specific operation. Command can be described as direct with special authority or prerogative; order. A command is a directive to a computer program to perform a specific task, in computing, a command is a directive to a computer program to perform a specific task.
A command is a directive or instruction given to a computer or computer software to perform a specific task. Commands are typically entered into a command line interface, such as a terminal or command prompt, by a user. In a GUI (graphical user interface), commands may also be initiated by selecting options from menus or clicking buttons.
The specific syntax and set of commands can vary depending on the operating system or software being used. Some examples of common commands include copying or moving files, changing directories, and installing or uninstalling software.
Here is the complete question:
Which commands (constructs) do NOT have a loop when expressed in syntax graphs? Select all that apply Group of answer choices if-then-else switch (expr) { case value: statements ;} for ( ; ; ) {} while (condition) do {statements;}
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aws database engine and experience sudden traffic increase and a degrade in read performance. what should you do to enhance the read performance for your database queries?
Verify the software and hardware recommendations. Optimization of CPU, disk, and memory consumption. Tools for optimizing software performance. MySQL performance with indexes. Boost efficiency by using InnoDB.
Which of the following will boost a SQL query's efficiency?If the criteria of the query matches the columns that are left out most in the index key, an index can aid in enhancing the performance of a SQL query. A non-clustered index's key should always have the most selected columns on the left.
What aids in the performance optimization of SQL queries?Here are the top 10 strategies for improving SQL queries. Indexing: Make sure the database is properly indexed for speedy access. Choose query: Instead of using SELECT*, specify the columns in your SELECT query.
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when powering off a computer to open the case, what steps must you take after shutting down the computer to ensure all residual power is gone? (select all that apply.)
Shut down the system, unplug it, disconnect all cables, and press the power button to remove any remaining power before opening a computer case.
What is the second step in bringing the case to an end?The preliminary hearing is the second step, at which: Before a judge or magistrate, the government must demonstrate that there is sufficient evidence, or probable cause, to believe the suspect committed the crime for which they are charged.
How do I unplug my computer safely?Make sure to save your data before unplugging your computer to save power, then turn it off using the "Shut down" option or by pressing the power button first. Also, keep in mind that unplugging your computer saves very little power, so it might not be worth the effort to unplug it every night.
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What is the purpose of a graphics processing unit (GPU)?
Answer:
(GPU) is a unique computer chip that handles complex calculations required for rendering images and videos. It is essential for gaming, video editing, and other graphics-intensive applications.
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which of the following is not a rule that must be followed when naming identifiers? after the first character, you may use the letters a-z, a-z, an underscore, a dollar sign, or the digits 0-9. identifiers can contain spaces. identifiers are case-sensitive. the first character cannot be a digit
b. Identifiers can contain spaces. A name that "identifies" (that is, "labels the identity of") either a singular thing or a singular class of objects can be an idea, a physical countable object (or class thereof), or a physical noncountable substance (or class thereof).
Identity, identification (the act of identifying), and identifier are all frequently denoted by the acronym Id. (that is, an instance of identification). A word, number, letter, symbol, or any combination of those can be used as an identification.
The words, numbers, characters, or symbols may be arbitrary or they may adhere to an encoding system (where letters, digits, words, or symbols stand for [represent] ideas or lengthier names). It is frequently referred to as a code or an id code when an identifier is followed by an encoding system.
An identifier known as a unique identifier (UID) only applies to one instance—to one specific object—in the universe. A serial number is required to identify each instance of the part design; a part number is an identifier but not a unique identifier.
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a model often used when creating a program that begins with the overall task and refines it into smaller subtasks is a(n) group of answer choices
Organizational charts, also known as hierarchy charts, are used to graphically represent the structure of an organization.
A hierarchy chart is a common paradigm used when developing a software that starts with the main task and breaks it down into more manageable subtasks. Organizational charts, also known as hierarchy charts, are used to graphically represent the structure of an organization. Its objective is to make the company's hierarchy of command and reporting links crystal obvious. Organizational or hierarchical charts are typically used by human resources, business executives, and new hires. In order to be up to date, the hierarchy chart needs to be updated to reflect new hires, job changes, and staff departures. Often, HR is in charge of this. A brief glimpse at the organization's hierarchy can help people comprehend how the structure is set up, how many layers there are, and where each person fits within the business.
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regardless of how storage devices are connected to a computer, and/or names are typically assigned to each storage device. a. vowels b. letters of the alphabet c. single-digit numbers d. special characters
The correct answer is Understanding computers: now and tomorrow test bank the alphabet, b. vowels, c. single-digit integers, d. special characters, and chapter storage using.
A one-digit number's face value, also known as place value, is its worth. Every single digit in a single-digit number has the same place value or face value. As demonstrated above, when comparing one-digit numbers, the number with the higher value (face value or place value) is bigger than the number with the lower value. We should be aware that the smallest one-digit numbers are 0 and 1, respectively. The smallest one-digit whole number is 0, while the smallest one-digit natural number is 1, respectively. In light of this, 0 and 1 are the lowest one-digit whole and natural numbers, respectively.
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gregson has just completed a vulnerability scan that has identified several vulnerabilities in software applications. to whom should gregson send this report so that they can be quickly addressed?
Gregson should send the vulnerability scan report to:
the appropriate individuals or teams within the organization responsible for managing and securing the software applications. This may include the IT security team, the network administrator, the software development team, or a combination of these groups.
It is important to send the report to the right people in order to ensure that the vulnerabilities are quickly addressed and that the necessary remediation steps are taken to prevent potential security breaches. The report should clearly outline the nature of the vulnerabilities, the severity of each vulnerability, and the steps that can be taken to address them.
In some cases, Gregson may also need to work closely with the software vendors to provide them with the necessary information about the vulnerabilities and to obtain any patches or upgrades that may be required.
The ultimate goal of sharing the report should be to ensure that the software applications are secured and protected from potential attacks, and to minimize the risk of data loss or theft.
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if someone could answer b) ii) , that would be great :) (no need to answer the rest, i’ve got it covered)
Answer:
Stating "Refuel a car" describes the behavior of what should happen without getting into the technical details. Abstraction allows us to know what something should do without worrying about how exactly it accomplishes it.
which of the following is true? a. a static variable has the same lifetime as a procedure-level variable but the same scope as a class-level variable. b. a static variable has the same scope as a procedure-level variable but the same lifetime as a class-level variable.
The True statement is:
B. a static variable has the same scope as a procedure-level variable but the same lifetime as a class-level variable.
A static variable is a type of class-level variable that retains its value between function calls. This means that a static variable has the same lifetime as a class-level variable, but the same scope as a procedure-level variable.
The value of a static variable is shared among all instances of a class, and its value is retained even after a function that uses the variable has completed execution.
In programming, the scope of a variable refers to the region of the program where the variable can be accessed or used. The lifetime of a variable refers to the period of time during which the variable exists and holds its value.
A procedure-level variable has a local scope, meaning that it can only be accessed within the procedure in which it is defined. A class-level variable, on the other hand, has a class scope, meaning that it can be accessed from anywhere within the class.
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the component of the five-component framework of an information system includes individuals who maintain the data and support the networks of computers. group of answer choices networking people storage procedural data
The correct answer is People who look after the data and support computer networks make up the component of the information system's five components.
A network of connected computers that can communicate and share resources is known as a computer network. These networked devices use a set of rules called communications protocols to transmit data through wireless or physical technologies.. Here are some frequently asked questions about computer networking. Emails, video, audio, and a wide range of other sorts of data are just a few of the applications and services that may be used and shared across computer networks. Various protocols and algorithms are used by network devices to define the precise transmission and reception of data by endpoints. There are four primary types of computer networks: Local area networks, personal area networks, metropolitan area networks, and wide area networks (Wide Area Network).
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what type of plagiarism would this be on our list? group of answer choices clone ctrl-c (copy and paste) find - replace remix recycle
Cloned work is plagiarism submitting someone else's writing as their own, word for word. 2. CRTL-C: Contains substantial, unaltered passages of text from a single source.
Cloning is plagiarism, right?Clone plagiarism is number one. Also known as identical copying, cloning plagiarism. This is an instance of someone claiming ownership of another person's work while verbatim copying that work.
Give five examples of what plagiarism is.submitting someone else's assignment as your own. stealing substantial passages of content from a source without referencing it. Using fragments from several sources, you can put the work together and submit it as your own. modifying a few words and phrases while using a source while trying to avoid being caught plagiarizing.
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question 17 :as you build your database, you need to define the types of information tracked in each table. this information would appear across the top of the datasheet view. which database component is used to define your information by data type?
Field database component is used to define this information by data type.
What is database entry?Data entry is the process of the entering informational or the updating records in the database or computers system.
You use a form to manually of the update data. Data in entry forms can provide an easier, faster, and more accurate to the way to enter data.
Forums by it can contained ofbany number of controls to the such as lists, text of boxes, and buttons. In turn, each of the controls on the form wither reading or the data from or writes data to an underlying table in the field.
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What is the difference between RAM and ROM?
Answer:
RAM (Random Access Memory) is computer memory used to store data and programs while the computer is running temporarily. On the other hand, ROM (Read-Only Memory) is a type of memory that stores data permanently and cannot be altered or written once it has been created.
Hope it helps!based on the sql shown, for each sales rep, which query lists the rep number, the number of customers assigned to the rep, and the average balance of the rep's customers? group and order the records by rep number.
Based on the sql shown, SELECT RepNum, COUNT(*) FROM the Customer group ORDERED BY RepNum;
Will the order in which fields are mentioned in the SELECT clause also be the order in which they appear in the query results?In the query results of a SELECT clause, fields will be listed alphabetically. The WHERE clause in a SELECT statement is required. You can utilize the symbol in the SELECT clause rather than mentioning every field name.
What kind of query uses the query results to make a new table?Making a new table from the results of a make table query involves retrieving data from one or more existing tables. You can either make that new table in the database you now have open or in a different one.
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use the distribute command to change all the columns to the same width
To set row height equally, select "Distribute Rows" under the "Cell Size" genre. Then, to equitably distribute column width, select "Distribute Columns."
How can I set the height of every row to the same using the distribute command?
Choose Layout > Distribute Rows to make sure that every row in the table is the same height. Select Layout > Distribute Columns to make the table's columns all the same height. Reminder: In Excel, choose Home > Format, then Row Height.
What does Word's Distribute command do?
To distribute things ubiquitously:
Click the pieces you want to distribute while holding down the Shift (or Ctrl) key. Select Distribute Horizontally or Distribute Vertically under the Align command on the Format tab. There will be a spaced evenly between each object.
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how many days have past since that date until today? (accurate every time the data is refreshed) excel
The TODAY function in Excel will spare you from having to manually type the date in the proper format and update as the days pass. The equation is therefore =TODAY() - B2.
The current date may Excel update a cell automatically?Include the current time and date, which are automatically updated. Use one of the Excel date functions listed below to enter the current date in Excel so that it will always be accurate: A cell's =TODAY() function inserts the current date.
How can I figure out how many working days there are between a date and right now in Excel?The function takes these arguments: Start date – Start date can either be the same as end date or earlier, later, or the same as end date. The end date is given via the argument End date (mandatory).
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