________ is malware that hijacks a user's computer and demands payment in return for giving back access. group of answer choices spyware a trojan horse ransomware a virus an evil twin
Answers
Ransomware is the specific type of malware that hijacks a user's computer and demands payment in exchange for restoring access. It is a malicious software that encrypts the victim's files or locks the entire system, rendering it inaccessible. The attackers then present a ransom message, typically demanding payment in a specific currency or cryptocurrency within a specified timeframe.
Ransomware attacks are typically financially motivated, aiming to extort money from individuals, businesses, or organizations. The malware can be distributed through various means, such as email attachments, malicious websites, or exploit kits. Once the ransomware infects a system, it spreads rapidly across networks, encrypting files and disrupting normal operations. The demanded ransom is often paid using cryptocurrencies due to their anonymity and difficulty to trace. However, there is no guarantee that paying the ransom will result in the return of access or decrypted files, as cybercriminals may not uphold their end of the bargain. Protecting against ransomware involves implementing robust cybersecurity measures, such as keeping software up to date, using strong and unique passwords, regularly backing up files, and employing reliable antivirus and antimalware solutions. Additionally, user education and awareness about phishing emails, suspicious downloads, and safe browsing practices play a crucial role in preventing ransomware infections.
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5. Given the following system narrative, create a Context Model Diagram. RipUOFF (RUF) Banking Center Information System. Security: to gain access to the system a User must submit a login request (user id, password, and successfully answer 1 of 5 random questions which the User has already supplied answers for during the registration process). A User must register with the above information by submitting a registration request before they are allowed to login. For successful access, the system will provide a confirmation to the User. If unsuccessful, an error message will be provided. The system allows three unsuccessful attempts before locking the account. If the password is 60 days or older, the system requires the User to change their password. Note: the User may request to change their password at any time - the User will receive a confirmation once their password has been changed successfully. The system shall support Customer checking accounts. A Customer may request a deposit or a withdrawal from their checking account (2 separate data flows). A receipt is generated for both deposits and withdrawals (may be combined) which is provided to the Customer. The system shall support a Customer submitting a loan application and the Customer will receive a loan request confirmation once the application has been recorded successfully. (Applications are not reviewed immediately.) I The system will generate checking account Monthly Statements on the first day of the month that will be sent to the Customer. The system shall allow a Bank Lending Agent to review pending loan applications for approval. If approved, the Customer receives a loan contract, and if not approved, they receive a rejection letter.
Answers
Unfortunately, as a text-based AI, I am unable to create visual diagrams directly. However, I can provide you with a textual representation of the Context Model Diagram based on the given system narrative:
scss
Copy code
------------ -------------
| User | | Banking |
| |--------login request-------->| Center |
| | | Information |
| |<-------confirmation---------| System |
| | | |
| |<---error message (unsuccessful)-----|
| | | |
| |--------registration request------>|
| | | |
| |---password change request--->|
| | | |
| |<---confirmation (password changed)--|
| | | |
| |---deposit request---------->|
| | | |
| |<---receipt (deposit)-------|
| | | |
| |---withdrawal request------>|
| Customer | | |
| |<---receipt (withdrawal)----|
| | | |
| |---loan application------->|
| | | |
| |<--loan request confirmation--|
| | | |
| |<---loan contract (approved)----|
| | | |
| |<---rejection letter (not approved)--|
| | | |
| |---checking account Monthly Statements--->|
| | | |
| |---loan application review--->|
| | | |
| |<--approval/rejection (loan application)--|
------------ -------------
In this representation, the arrows indicate the flow of information or actions between different entities or components in the system. The entities or components are represented as labeled boxes.
Please note that this is a simplified representation, and the actual Context Model Diagram may include more details and entities based on the specific system requirements.
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what are 7 types of data in ict give 2 examples for each pls
Answers
Answer:
There are two main floating-point data types, which vary depending on the number of allowable values in the string: Float: A data type that typically allows up to seven points after a decimal. Double: A data type that allows up to 15 points after a decimal. 5. Long. Long data types are often 32- or 64-bit integers in co
Explanation:
yo who down to play some games rn
Answers
me lol ....................
Hmmmmmmmmmmmm nah maybe eh
true or false: like the osi and tcp/ip models, moore's law is a theoretical model predicting the processing cost and power that has not been observed in reality.
Answers
The given statement "like the osi and tcp/ip models, moore's law is a theoretical model predicting the processing cost and power that has not been observed in reality." is false because unlike the OSI and TCP/IP models, Moore's Law is not a theoretical model, but rather an observation and prediction based on empirical evidence.
It states that the number of transistors on a microchip doubles every 18 to 24 months, which has been observed in reality for several decades. This observation has enabled a remarkable improvement in processing power and reduction in cost, leading to the rapid advancement of technology. One of the two primary methods of data transmission in a TCP/IP network is TCP. The other one is UDP, a best-effort connectionless protocol. TCP ports are used by devices to communicate through TCP. A TCP port often serves as an endpoint identification particular to an application or service.
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Which of the following is Microsoft Windows 10 virtualization technology?
Guest OS
Hyper-V
Hyper-10
Network utilities
Answers
Answer:
Hyper-V
Explanation:
lets you run a software version of a computer, called a virtual machine. Each virtual machine acts like a complete computer, running an operating system and programs
example:
you can run a virtual Linux computer on your windows
microsoftdocs
A copyright gives the exclusive legal right to the original author or creator to print, publish, perform, record, or produce material.
True
False
Answers
Answer:
True.
Explain: TRUE
Alisa Miller claims that today's college graduates:
Answers
Answer: know less about the world then there counterparts
Explanation:
Answer:
know less about the world then there counterparts
Explanation:
List 2 benefits of printing in pla filament
Answers
Low printing temperature: PLA has a relatively low printing temperature compared to other thermoplastics (e.g. for PLA an ideal printing temperature starts from around 180°C, while ABS this is around 250°C). ...
Ease of use: PLA is one of the easiest material filaments to 3D print with
Kinda gave more than 2 but hope it helped you ! ;)
Which statement of the visualization is incorrect? A) Virtualization works on the desktop, allowing only one operating system(Mac OS, Linux, or Windows) to run on the platform B) A server running virtualization software can create smaller compartments in memory that each behaves like a separate computer with its own operating system and resources C) Virtualization is referred to as the operating system for operating systems D) Virtualization can generate huge savings for firms by increasing the usage of their hardware capacity.
Answers
The incorrect statement is A) Virtualization works on the desktop, allowing only one operating system (Mac OS, Linux, or Windows) to run on the platform. Virtualization on the desktop enables the concurrent execution of multiple operating systems.
Explanation:
A) Virtualization works on the desktop, allowing only one operating system (Mac OS, Linux, or Windows) to run on the platform.
This statement is incorrect because virtualization on the desktop allows multiple operating systems to run concurrently on the same platform. Virtualization software, such as VMware or VirtualBox, enables users to create and run virtual machines (VMs) that can host different operating systems simultaneously, including Mac OS, Linux, and Windows.
B) A server running virtualization software can create smaller compartments in memory that each behaves like a separate computer with its own operating system and resources.
This statement is correct. Virtualization software allows the creation of virtual compartments or containers within a server's memory. Each compartment, known as a virtual machine, can operate independently with its own dedicated operating system and allocated resources.
C) Virtualization is referred to as the operating system for operating systems.
This statement is correct. Virtualization is often referred to as the "operating system for operating systems" because it provides a layer of abstraction and management for multiple operating systems running on the same physical hardware.
D) Virtualization can generate huge savings for firms by increasing the usage of their hardware capacity.
This statement is correct. Virtualization enables efficient utilization of hardware resources by consolidating multiple virtual machines onto a single physical server. This consolidation reduces the need for additional physical servers, leading to cost savings in terms of hardware procurement, maintenance, and power consumption.
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which of the following wireless technologies influences the spectral efficiency of 4g and 5g wireless communication services, reduces interference, and increases the channel robustness? a. ofdm b. fhss c. dsss d. mimo-ofdm
Answers
The wireless technology that influences the spectral efficiency of 4G and 5G wireless communication services, reduces interference, and increases the channel robustness is option D:mimo-ofdm
What is the wireless communication services?MIMO-OFDM is a wireless communication technology that uses multiple antennas at both the transmitter and receiver ends of a communication link to improve the data rate, reliability, and spectral efficiency of wireless communications.
Therefore, It combines the advantages of MIMO (Multiple Input Multiple Output) and OFDM (Orthogonal Frequency Division Multiplexing) technologies, allowing for the transmission of multiple data streams simultaneously over the same frequency band. This enables higher data rates and more reliable wireless communication with reduced interference and increased channel robustness.
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which describes the safest way to sit at a desk while typing on the computer?
Answers
The safest way to sit at a desk while typing on the computer is to Keep the knees and hips at 90-degree angles and the wrists straight.
Sitting at a desk and typing can be a lot stressful and also strain our back and neck and may leads to injury. To ensure maximum protection for our back, sit with the knees and hips at a 90-degree angle.Conclusively, we can say The safest way to sit at a desk while typing on the computer is to Keep the knees and hips at 90-degree angles and the wrists straight.
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Malicious code dissimulated inside an executable file which can replicate itself by inserting its own code in other programs following some human intervention?
Answers
The type of malicious code you are describing is a form of malware known as a "virus." A virus is a piece of software that can infect other programs by inserting its own code into them, and it often does so through some kind of human intervention such as opening an infected email attachment or downloading a malicious file from the internet.
Viruses are a type of malware that has been around since the early days of computing. They are typically designed to spread themselves as widely as possible by infecting as many programs and systems as they can. Once a virus has infected a system, it can cause a variety of problems such as slowing down or crashing the system, stealing sensitive data, or even using the infected system to launch attacks on other systems.
To protect against viruses and other forms of malware, it is important to use antivirus software and keep it up-to-date with the latest virus definitions. It is also important to be cautious when downloading or opening files from unknown sources and to keep your operating system and other software updated with the latest security patches. By taking these steps, you can help reduce your risk of falling victim to a virus or other type of malware.
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15
In the formula, =A5 - SD$26, SD525 is best bestbed as a
(1 Point)
absolute erence
function
eie eerence
Answers
Answer:
hi
Explanation:
in 2014, what percentage of the world population has access to the internet?
Answers
Answer:
At that time 43.9% of people have access to the global internet.
17. every time attribute a appears, it is matched with the same value of attribute b, but not the same value of attribute c. therefore, it is true that:
Answers
Multivalued dependency is a specific instance of a join dependency. When a table contains many independent multivalued properties, the condition known as multivalued dependency arises
What is multivalued dependency and what does it look like?When a table contains many independent multivalued properties, the condition known as multivalued dependency arises. As an illustration: Consider a bike manufacturer that annually manufactures each model in two colors (black and white). Bike model, year of manufacture, and color.With only two sets of values involved, or a binary join dependency, a multivalued dependency is a specific instance of a join dependency.Multiple rows in a table are referred to as having an MVD, or multivalued dependency. As a result, it suggests that there are numerous other rows present in the same table. A multivalued dependency would therefore prohibit the 4NF. Any multivalued dependency would at the very least involve three table characteristics.To learn more about Multivalued dependency refer to:
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cynthia wants to make an exact copy of a drive using a linux command-line tool. what command should she use?
Answers
The Linux command-line tool that is the command she can use is kwon as option b: cp.
Which Linux command creates a copy of a drive?On Unix kind of operating systems, the cp command is known to be the tool that a person can be able to use to makes some replicas of files as well as directories.
Note that since Cynthia wants to make an exact copy of a drive using a Linux command-line tool, she can use the above command.
Hence, The Linux command-line tool that is the command she can use is kwon as option b: cp.
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Cynthia wants to make an exact copy of a drive using a Linux command-line tool. What command should she use? A. df B. cp C. dd D. ln
1 point
4. Part of a computer that allows
a user to put information into the
computer ?
O Output Device
O Operating System
O Input Device
O Software
Answers
Answer:
adwawdasdw
Explanation:
Answer:
I'm so sorry about the comment of that person down there
anyways I think its Number 2.
What is the largest UTC time that can be encoded by software with the Y2K38 bug (round DOWN to the minute)?
Answers
Answer:
The Y2K38 bug refers to a potential issue that may arise in computer systems due to a limitation in the way some systems store and handle dates. Many systems use a 32-bit signed integer to represent time in seconds since the start of the Unix epoch, which is January 1, 1970, at 00:00:00 UTC. This means that the maximum value that can be represented using a 32-bit signed integer is 2^31 - 1, or 2,147,483,647 seconds, which is equivalent to approximately 68 years. If this value is interpreted as signed, it would result in a "signed integer overflow" issue on January 19, 2038, at 03:14:08 UTC, also known as the "Year 2038 problem" or "Y2K38 bug."
To determine the largest UTC time that can be encoded by software with the Y2K38 bug, we need to subtract 2,147,483,647 seconds from the Unix epoch of January 1, 1970, at 00:00:00 UTC. This would result in a maximum UTC time of December 13, 1901, at 20:45:52 UTC, rounded down to the minute. Any time beyond this point would result in a signed integer overflow issue on systems that are affected by the Y2K38 bug. It's worth noting that many modern systems and software have already transitioned to using 64-bit or higher integer representations for time, avoiding the Y2K38 bug altogether. However, legacy systems or embedded systems may still be susceptible to this issue if not properly addressed.
Practicelt Reflection - Chapter 4a - fractionSum Consider the following solution to Practicelt Exercise 4.1: fraction Sum Solution public static double fractionSum(int n) double sum-0 sum1.0/ i; return sum; Why is it necessary to say 1.0 in the division instead of 1?
Answers
1.0 is used in the numerator of division "1.0/ i " because in order to obtain the sum with the decimal point it is necessary that one of the values in the division is to be with the decimal point.
If the division "1.0/ i" uses 1 rather than 1.0, integer division, not floating point division, will be performed and result will be returned as an integer. As the requirement of the question is to perform floating point division in order to find the sum and return it in floating point value because the data type of the varibale sum is double, which requires that the sum should be retuned with a decimal point.
So in order to meet the specified purpose, it is necessary that the floating point value 1.0 should be used rathar than using integer value 1.
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Agents must submit the original documentation for enrollment within 24 hours after the application data has been entered into the agent portal.
Answers
Agents must submit the original documentation for enrollment within 24 hours after the application data has been entered into the agent portal is a true statement.
What is documentation?This is known to be a kind of knowledge management and knowledge organization, and it is one that entails or that is done on paper, online, or others.
Note that the purpose of documentation is so that one can be able to Describe the use, operation, maintenance as well as other kinds of processes.
Hence, Agents must submit the original documentation for enrollment within 24 hours after the application data has been entered into the agent portal is a true statement.
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What tool would you use to reduce the digital image size.
Answers
Question 2 (Show your steps, not only the final results.) According to the PMF table in Question 1, a bag is considered underqualified if it weights less than 47(<47). Randomly select three packages. What is the probability that at least one is underqualified ( 2 points)?
Answers
To calculate the probability of at least one underqualified package out of three randomly selected packages, we need to consider the complement rule. This rule states that the probability of an event occurring is equal to 1 minus the probability of the event not occurring. We will calculate the probability of none of the packages being underqualified and then subtract it from 1 to obtain the desired probability.
To calculate the probability of none of the packages being underqualified, we need to find the probability that each package weighs 47 or more. According to the PMF table in Question 1, the probability of a package weighing 47 or more is 0.67. Since the selection of each package is independent, we can multiply these probabilities together to obtain the probability of none of the packages being underqualified:
P(None underqualified) = 0.67 * 0.67 * 0.67 = 0.300763.
Next, we calculate the probability of at least one package being underqualified by subtracting the probability of none of the packages being underqualified from 1:
P(At least one underqualified) = 1 - P(None underqualified) = 1 - 0.300763 = 0.699237.
Therefore, the probability that at least one package out of three randomly selected packages is underqualified is approximately 0.699 or 69.9%.
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What does it mean to “declare a variable”?
a) Create a Variable
b) Use a Variable
c) Share a Variable
d) Modify a Variable
Answers
Answer:
A
Explanation:
How to write an IF statement for executing some code if "i" is NOT equal to 5?
a. if (i != 5)
b. if i =! 5 then
c. if i <> 5
d. if (i <> 5)
Answers
The correct IF statement for executing some code if "i" is NOT equal to 5 is option c. The syntax "if i <> 5" checks if the value of "i" is not equal to 5. If the condition is true, the code inside the if statement will be executed.
The operator "<>" is used in many programming languages to denote "not equal to." In this case, it specifically checks if the value of "i" is not equal to 5. If "i" holds any other value except 5, the condition will evaluate to true, and the code within the if statement will be executed. However, if "i" is equal to 5, the condition will be false, and the code inside the if statement will be skipped.
Using the correct syntax in programming is crucial to ensure that the desired logic is implemented accurately. In this case, option c with the "<>" operator correctly checks for inequality, making it the appropriate choice for executing code when "i" is not equal to 5.
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pls help
Question 2 (1 point)
True or false: when you use someone's copyrighted work in something you are
selling, you only have to cite them.
Answers
The given statement of copyrighted work is false.
What do you mean by copyright?
A copyright is a type of intellectual property that grants the owner the exclusive right to copy, distribute, adapt, display, and perform a creative work for a specific period of time. The creative work could be literary, artistic, educational, or musical in nature. The purpose of copyright is to protect the original expression of an idea in the form of a creative work, not the idea itself. A copyright is subject to public interest limitations, such as the fair use doctrine in the United States.
When you use someone's copyrighted work in something you are selling, you must get their permission first.
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Which of these are reasons to evacuate a building during an earthquake? Mark all that apply.
A. There is a water leak.
B. The building is on fire.
C. There is structural damage to the building like newly cracked walls.
D. There is a gas leak.
Answers
Answer:
D
Explanation:
Answer:
c, b
Explanation:
I am guessing those are correct I don't really know
Angela wrote some lines of code that she wants to test. She will need to use ___?
a file path
a prompt
IDLE
open source
Answers
Answer:
IDLE
Explanation:
Women in Mathematics: This woman, who was born in London in 1815, was one of the first people to realize that computing machines (such as the never-completed Analytical Engine) could perform more general actions than just arithmetic. Her namesakes include a programming language and two computing awards?
Answers
Augusta Ada King, Countess of Lovelace, an English mathematician and author who lived from 10 December 1815 to 27 November 1852, is most remembered for her contributions to Charles Babbage's Analytical Engine, a mechanical general-purpose computer.
What is programming language?For programmers (developers) to interact with computers, they need to use a programming language. In order to generate machine code or, in the case of visual programming languages, graphical elements, programming languages must follow a set of rules that allow string values to be transformed into different types of code. A programming language is a notational scheme used to create computer programmes. While they occasionally include graphics, formal programming languages tend to be text-based. They are an instance of a computer language. The fact that it took at least two years to complete developing the first Malbolge code demonstrates how difficult Malbolge is to learn.To learn more about programming language, refer to:
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Does anyone know this answer
Answers
Answer:
b
Explanation:
uses the professional expertise within an organization to develop and maintain its information technology systems
Answers
The use of professional expertise within an organization to develop and maintain its information technology systems refers to the practice of leveraging in-house IT professionals to ensure the smooth functioning of hardware, software, and network infrastructure.
These professionals possess the required skills and knowledge to create, upgrade, and troubleshoot systems tailored to the organization's specific needs. Having an in-house IT team is beneficial for several reasons. Firstly, it enables quicker resolution of issues as these experts are already familiar with the organization's infrastructure.
Secondly, it encourages cost savings as compared to outsourcing IT services. Lastly, it fosters better communication and understanding between IT staff and other departments, leading to more efficient operations and collaborative problem-solving. Overall, utilizing professional expertise within an organization for IT system development and maintenance ensures a more efficient and reliable technology environment.
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