how does the distinction between kernel mode and user mode function as a rudimentary form of protection (security)?

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Answer 1

Explanation

It does much more than “rudimentary form of protection”.

At its fundamental, it defines the memory separation between two areas - a kernel mode memory mapping, and a user mode memory mapping.

Now the reason it supports more than “rudimentary” is that there can be MANY different user mode memory maps…

It is even possible to define two maps that partially overlap..

And that also means that the kernel mapping can partially overlap a user mode map.

This allows the kernel to share SOME of its privileges to a more limited level user mode. This ALSO allows the kernel to examine/copy data from the user memory map, or just change its mapping to contain the user pages, and give the user memory map different pages (this can be faster than copying).

Thus having a dual mapping becomes more powerful, as it allows a hierarchy of mapping and granting different privileges to different mappings. Specifically, this CAN allow user mode drivers to access some device registers… It can also allow the emulation of as many security levels as the operating system requires.

Care must be taken, because some device registers might be able to bypass the memory mapping - so this level isn’t done that often.

The way these memory maps are manages is by designating a group of data (a context, which has CPU registers and status, extended security flags in addition to the memory map) and call it a process.

In the simple case, it is possible for the kernel to then switch between processes (the switch saves the kernel context, and loads the context with the context associated with the specified process), and the process is “running” until something interrupts it.

When the process is interrupted (either by a device, a clock, or a system call), the kernel saves the updated context (usually the registers) and loads the kernel context. If the interrupt is a system call, then the kernel can evaluate the parameters for the system call (verify that the address references are within the processes memory map, and whatever other data is passed, then invoke the kernel functions to carry out the request. Updates to the process context can be done by those functions carrying out the desired activity (and that may involve modifying the memory map, or updating the saved register values), and return to switch to a process (this allows the kernel scheduler to pick an alternate process or resume the “current” process).

This action is “time sharing the CPU among multiple applications”, and gives each application the appearance of being the only thing the system is doing.

As part of the “dual mode” operation the process context can have security flags that allows the kernel to grant extra capability to a process, or denying capabilities (such as granting/denying file access).

So the “kernel mode/user mode” separation is extremely flexible.

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Answer 2

Beyond a "rudimentary type of protection," it accomplish much more. At its core, it establishes the division of memory into two parts: a kernel mode memory mapping and a user mode memory mapping.

What distinguishes kernel mode from user mode?

User mode is used for applications, and kernel mode is used for the fundamental portions of the operating system. Some drivers may function in user mode, while the majority function in kernel mode.

Why does kernel mode run throughout every program?

This is necessary because memory reformatting would be conceivable if all applications functioned in kernel mode. It calls the fundamental API if it wants to use any of those features.

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Related Questions

define a setter function named wonaward() that takes a parameter for the name of an award and pushes the award name onto the end of the awards array.

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A a setter function named wonaward() that takes a parameter onto the end of the awards array will be:

function wonAward(awardName){

 awards.push(awardName);

}

What is array?
An array is a data structure that stores a collection of items in a specific order. It is one of the most fundamental data structures in the programming field and is widely used to organize and store data. Arrays can store any type of data such as numbers, strings, objects, or even other arrays. The data elements in an array are accessed by a numerical index which starts from 0 and moves up sequentially. To create an array, you need to specify the data type and a size of the array. The size of an array is fixed and it cannot be changed. Arrays are useful for many types of data manipulation and are often used to store large groups of data in an organized and efficient manner.

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what type of processor memory is located on the processor chip (processor die)?

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Term in this set (100) Level [a] cache is the name of the memory on the CPU die. The memory referred to as Level [b] cache is located in the processor package but not on the processor die.

The processor's internal memory type?

PIM stands for processing in memory, also known as processor in memory, which is the combination of a processor and Random Access Memory (RAM) on a single chip. A PIM chip is another name for the outcome.

How do processor dies work?

The square of silicon that was cut out of the wafer and contains an integrated circuit is referred to in formal language as a "die." Both dice and die are singular nouns. check out MCM, wafer, and chip. Wafer with dice on it.

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Which of the following Windows components are important to keep updated in regards to system security: Which of the following Windows components are important to keep updated in regards to system security

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Internet Explorer (IE) .NET framework-Microsoft Data Access Components (MDAC)-Internet Information Server (IIS) are the important component.

What is Internet Explorer?

Internet Explorer is a discontinued series of graphical web browsers created by Microsoft that were used in the Windows line of operating systems. It was formerly known as Microsoft Internet Explorer and Window Internet Explorer.

It was first made available in 1995 as a component of the Plus! add-on package for Windows 95. The original equipment manufacturer (OEM) maintenance releases of Windows 95 & later versions of Windows provided later versions as free downloads or in-service packs.

In the late 1990s, Microsoft invested about US$100 million per year into Internet Explorer[5], with over 1,000 employees working on the project.

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Write a function min that has three C string parameters and returns the smallest. Instructor Notes: Hint: Use char* as the type for the c-strings here.

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min char (char string1, char string2, char string3) If strcmp (string1, string2) > 0 is true, then Return string3 if (strcmp (string2, string3) > 0; otherwise, return string2; else Return string3 if strcmp(string1, string3) > 0;

What are syntax and a string?

A random-length string of characters contained in double quotations is the reader syntax for strings ( " ). The following special symbols can be inserted using the backslash escape character.

Why is it called a string?

One of his Phoenix Jazzmen colleagues gave him the moniker "Sting" due to the black-and-yellow striped jumper he frequently wore onstage. Sting spent two years as a teacher at St. Paul's Primary School in Cramlington after earning his degree in 1974.

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change photoshop to automatically save recovery information every 15 minutes.

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Step 1: Launch Photoshop and navigate to the Edit menu on the toolbar. Step 2: Select Preferences and then General from the Edit menu. Step 3: Select Autosave recovery time from the File management tab. You may change the Autosave time to 5 minutes, 10 minutes, or anything you like.

What is photoshop?

Photoshop is the industry standard picture editing program, and it is used for anything from minor retouching to mind-bending photo art. Editors use Photoshop to crop images, improve photo composition, fix lighting, and make every subject appear its best. Photoshop has several functions, the most important of which are picture editing, graphic design, website creation, and image compositing. Photoshop is also used to create presentations, logos, and digital art.

Here,

Step 1: Open Photoshop and select the Edit menu from the toolbar. Step 2: From the Edit menu, select Preferences and then General. Step 3: Navigate to the File handling tab and choose Autosave recovery time. You may set the Autosave time to 5 minutes, 10 minutes, or anything you like.

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which of the following sql data types should not be used to define the numeric data: 111.11? select one: a. integer(3,2) b. numeric(3,2) c. numeric(4,2) d. numeric(5,2)

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An database is a grouping of material that makes sense together logically.For illustration, consider a database of details on Elon University.People (students, professors, members of staff), courses taught, facilities, finances, and other things might be tracked in this database.

What's an example of a database name?

The username is indeed the name of a user who is linked to the database, and the database name seems to be the name of a database itself.John Smith, for instance, might access Database1, a database.John Smith was the username and Database1 was the database name.

Which database is the most basic?

Calling fsync will ensure that the file was saved to the hard drive, which is what we think of when we talk about persistent storage. File systems provide the simplest database capability to reliably persist data.

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Which of the following viruses is designed to infect multiple file types in an effort to fool the antivirus software that is looking for itstealth virusCovidHIV

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Answer:

Functions are "self-contained" modules of code that accomplish a specific task. Functions usually "take in" data, process it, and "return" a result. Once a function is written, it can be used over and over and over again. Functions can be "called" from the inside of other functions.

Explanation:

in excel desktop, what is one of the function categories on the formulas tab, in the function library group? 1 point medical lookup

Answers

One of the function categories on the formulas tab, in the function library group, is Lookup & Reference. The correct option is B.

What is an Excel desktop?

The greatest option for using sophisticated graphs and charts is the Excel Desktop App. Because of the many varied functions, this group is one of the most used.

The Insert Function, Autosum, Recently Used, and other buttons are included in the Function Library group, to start. The Date & Time, Financial, Logical, Text, and other buttons are also included.

Therefore, the correct option is B. Lookup & Reference.

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The question is incomplete. Your most probably complete question is given below:

Analytical

Lookup & Reference

Medical

Functional

How did writing evolve

Answers

Answer: Writing Evolved By:

Explanation:    Scholars generally agree that the earliest form of writing appeared almost 5,500 years ago in Mesopotamia (present-day Iraq). Early pictorial signs were gradually substituted by a complex system of characters representing the sounds of Sumerian (the language of Sumer in Southern Mesopotamia) and other languages

digital devices may be collected in a broken state with files already deleted. what methods can digital forensic practitioners employ to extract or recover these lost files?

Answers

If it appears likely that the evidence on the website might be lost by a delay in carrying out the above procedures then the person reporting may be asked to make a copy of the evidence by whatever means they are capable of (either printing, screenshot or saving pages).

What are digital forensic practitioners?

The Digital Forensic Practitioner uses a wide range of digital forensics methods to support the investigative strategy while supporting and advising on the delivery of digital offerings for major crimes, incidents, operations, or any investigation that needs specialized digital forensic investigative assistance. A subfield of forensic science called "digital forensics" is dedicated to finding, obtaining, processing, analyzing, and documenting electronically stored material. Nearly all illegal acts involve the use of electronic evidence, making digital forensics support essential for police investigations. Disk/data capture programs, file viewing tools, networks and database forensic tools, and specialized analysis tools for file, registry, web, email, and mobile device research are among the primary categories of digital forensics tools.

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redistribution programs are means-tested. to qualify for such a program, a person must demonstrate that:

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A means-tested program is one for which the recipient qualifies based on income, so option C is right.

The process of determining who qualifies for financial assistance to get a good or service, such as welfare payments, is known as a means test. The ability to pay for a particular service or item is the first factor taken into account when determining a person's eligibility for financial assistance. Means-tested programs only enable individuals and families with incomes and/or assets below a certain cutoff to participate. When you require care services, the government will determine your subsidies based on your financial situation. Patients from lower-income families are guaranteed to receive more financial assistance than those from higher-income families.

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how do the difference in polyatomin ios so4 and so3 help to determine whether each ends in the -ite or -ate

Answers

When an element splits into two polyatomin  oxyanions, the one with less oxygen is called oxyite and the one with more oxygen is called oxyate.

What does a polyatomic ion or an ITE mean?

Only polyatomic anions containing oxygen are allowed to have an ending (suffix), and only when the polyatomic ion is present in the following.... Remember that -ate polyatomic ions contain one more oxygen than -ite polyatomic ions, which only have the polyatomic anion, in order to tell them apart from one another.

What distinguishes acids ending in ous from acids ending in IC?

B. Identify the polyatomic anion's name if the acid contains an oxygen atom. If the anion's last component is "-ite," the suffix "-ous" is utilized.

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Question 2 of 20
The first paragraph or part of a business letter is the

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Answer:

Sorry but please I dont understand the question

an explicit call to the superclass constructor using super() must be provided as the first statement in the subclass constructor. group of answer choices true false

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True an explicit call to the superclass constructor using super() must be provided as the first statement in the subclass constructor.

A subclass may have its own constructors in addition to its own private data members.Only the instance variables of the subclass can be initialized by the constructors. As a result, whenever an object of a subclass is created, an object of the superclass' constructor must likewise be called automatically.The super keyword is used to call a constructor for a superclass.to invoke a superclass function that the subclass has overridden.If both the superclass and the subclass have attributes with the same name, to access the superclass's attributes (fields).to specifically invoke the parameterized or no-arg constructor of the superclass from the subclass constructor.

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information stored in long-term memory is blank and blank . (more than one option may be correct.) multiple select question. unreliable sensory retrievable permanent

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Information associated with skills learned through practice and repetition, like driving a car, is stored in procedural long-term memories. Declarative long-term memories are knowledge that a person can recall at a later time about facts, laws, events, definitions, and experiences. See here for more information on memory types.

What two categories of information are kept in memory?

Long-term memory consists of two parts: explicit and implicit. Semantic and episodic memory are both included in explicit memory. Procedural memory and things picked up through conditioning are examples of implicit memory.

Which four types of long-term memory are there?

Explicit memory (declarative), episodic memory, semantic memory, autobiographical memory, and implicit memory are all terms used to describe long-term memory (procedural memory).

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ursula wants to freeze the header row so that it remains visible while she scrolls down the worksheet. to do so, she can click the view tab and then click freeze top row. true false

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True, To keep the header row visible as she scrolls down the spreadsheet, Ursula wishes to freeze it. She can accomplish this by selecting the View tab, then selecting Freeze Top Row.

A spreadsheet is a sort of software program that can store, display, and alter data using rows and columns of information. A spreadsheets is one of the most popular tools that can be used on personal computers. Usually, spreadsheets are employed to record numerical data and short sections of text. A spreadsheet program called Microsoft Excel was created and is supported by Microsoft. You can carry out a wide range of tasks with Excel, including making charts, lists, and calculations. As well as tracking financial data, it aids in information analysis and sorting. Microsoft Excel is the right response. Data can be arranged, formatted, and calculated using Excel, a spreadsheet tool from Microsoft.

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A cybersecurity analyst has access to several threat feeds and wants to organize them while simultaneously comparing intelligence against network traffic.
Which of the following would BEST accomplish this goal?
A. Continuous integration and deployment
B. Automation and orchestration
C. Static and dynamic analysis
D. Information sharing and analysis

Answers

Automation and orchestration would be to BEST accomplish this goal for  cybersecurity analyst. Thus, option B is correct.

What are cybersecurity analyst?

Computer networks are shielded from hacker attacks and unauthorised access by cybersecurity analysts. They achieve this by attempting to foresee and defend against cyber threats and by responding to security breaches when they do occur. You are responsible for protecting the crucial data of your company in this position.

Protecting the hardware, software, and networks of your business from loss, theft, or unauthorised access is one of your responsibilities as a cybersecurity analyst. You might anticipate performing a variety of cybersecurity tasks at a small business or organisation.

You might specialise as a member of a bigger security team at larger organisations. Cybersecurity analysts need to be familiar with both their company's IT infrastructure and the most recent cyber threat landscape.

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what is the best way to include questions for your instructor in your emails?multiple choice question.write them out in the subject line.put them in a numbered list.add them as an attachment.write them each in a separate paragraph.

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What qualities make a subject line for an email to a teacher effective. Be straightforward, concise, and specific. Just use one or two sentences in the subject line.

What information should your include in your email to your professor?

The course number and section number should both be included. closing and salutation.

How do you format a professor's email subject?

Insert the course number or description of the class you are completing with the instructor in the opening sentence of the email. information in the email's subject line (or one of the opening lines). They won't have to waste years searching for it that way.

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question 6 you're browsing the web, and type in www. in the address line. instead of the website, an error screen appears. you type in 216.58.214.4, and the website comes up. what's the most likely reason for this?

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The act of navigating through web pages of content is referred to as web viewing or web surfing. There are four popular web browsers: Safari, Firefox, Netscape, and Internet Explorer.

What are the types of a web browser?

A web browser, usually referred to as a "browser," is software that users can use to locate, access, exhibit, and view webpages. Popular online browsers include Apple Safari, Chrome, Browser, and Microsoft Internet Explorer.

Describe what web browsing is?

Reading is the process of skimming over a collection of facts without having a clear goal in mind. It typically refers to accessing the internet and the web as a whole. The phrase may suggest that the individual is simply squandering time online without any real purpose.

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true or false the dyn attack would have been prevented if the company patched their apache web-servers properly to avoid the sql injection attack.

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True. The DYN attack likely would have been prevented if the company had properly patched their Apache web servers to avoid SQL injection attacks.

What is the DYN attack?

The DYN attack is a distributed denial-of-service (DDoS) attack that occurred in October 2016 against DNS provider Dyn. The attack resulted in major websites such as Twi_tter, Spo_tify, and Red_dit becoming unavailable for several hours.

The attack was launched using a botnet of Internet of Things (IoT) devices, such as routers and security cameras, which were infected with malware and controlled remotely to flood the Dyn servers with traffic, causing them to become overwhelmed and unable to process legitimate traffic.

The DYN attack is considered one of the largest and most significant DDoS attacks to date, highlighting the vulnerability of IoT devices and the importance of securing them properly.

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what can you do with the data that you import from an excel workbook into access? select all the options that apply. a. import the data into a new table. b. link to the workbook by creating a linked table. c. import the data into a new report. d. append the data to an existing table.

Answers

Click Open after selecting that OlympicMedals.accdb file you downloaded. All tables discovered in the database are displayed in the Select Table window that follows.

What distinguishes a workbook from a worksheet?

Created in Excel, a workbooks is a spreadsheets program file. Two or more worksheets can be found in a workbook. Cells in a worksheet (sometimes referred to as a spreadsheet) can be used to enter and compute data. Columns and rows have been used to arrange the cells.

The Excel workbook is where?

You can open a workbooks within the Excel program, or you can select a workbooks on your computer and then double it to open it. On the File tab, click. Click Open. To rapidly see the Open tab in the Backstage view, press Ctrl + O.

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Structured databases work well, but why is it sometimes a better choice to store data in unstructured and semi-structured databases?

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Powerpoint presentations, text files, Word documents, and other types of data can sometimes be kept more flexibly without having to adhere to the strict formatting requirements of a structured database.

What exactly is structured data?

Machine learning algorithms can quickly understand structured data since it is well-organized and often falls under the category of quantitative data. Structured query language (SQL), created by IBM in 1974, is the programming language used to manage structured data. Machine language can quickly comprehend and is well-organized in structured data.

What are databases that are structured and unstructured?

Unstructured data is an amalgam of many different forms of data that are stored in their native formats, whereas structured data is very specialized and is saved in a preset format. So, structured data benefits from schema-on-write, whereas unstructured data benefits from schema-on-read.

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northern trail outfitters wants to compile a report of email metrics across all jobs deployed in the last six months and correlate those metrics to single subscribers and their corresponding data from data extensions. what should be used to pull this data per the requirements?

Answers

The best tool to use for pulling this data would be the Email Studio in Salesforce Marketing Cloud.

What is Salesforce Marketing Cloud?

Salesforce Marketing Cloud is a cloud-based customer relationship management (CRM) platform designed for businesses to manage their marketing operations. It enables companies to create, track and optimize marketing campaigns, build relationships with customers and prospects, and measure the success of their efforts.

This tool provides detailed reporting and analytics on all email campaigns sent in the last six months, including open rate, click-through rate, and bounce rate. It also allows you to segment data extensions and view individual subscriber data, allowing you to analyze data at a more granular level.

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What is the binary code for line 6? *
1 point
A
O 0111111111110
O 100000000001
O 0101000101010

helppp

Answers

Answer:

1st answer

Explanation:

black 1

white 0

The form and keying style that a typist uses while operating the keyboard is called?

Answers

move forward as well as back as each key is struck. b. move from side - to - side because each code is struck

What is a keying style?

the manner in which a typist uses the keyboard when using it. Touch technique. To the right of a monitor and keyboard, to key using touch rather than the hunt-and-peck approach. Use short, sharp strokes for the right typing technique. In order to type correctly, one must stand somewhat straight ahead of the keyboard.

Your fingertips rest on the keys in the middle row, often known as the home row, of the computer keyboard when you aren't typing. For instance, the first row keys for your left hand on the common QWERTY American keyboard are A,S,D &F

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Write an expression that prints "Special number" if specialNum is -99, 0, or 44.

#include
using namespace std;

int main() {
int specialNum = 0;

specialNum = 17;

if / * YOUR SOLUTION GOES HERE */
cout << "Special number" << endl;
}
else {
cout << "Not special number" << endl;
}

return 0;
}

Answers

The monitor, or output, is printed on the computer's copy machine frequently. A member of the iostream class, the defined item cout is an instance.

In C, can we invoke the main function?

Yes, within the main() function, we can invoke the main(). Recursion is the practice of calling a procedure by the function itself. You can call main() from within the main() function, but if you want to end the application, you should provide a condition that prevents calling main().

What is the C++ main function's return type?

The C++ standard mandates the same result as the C standard and states expressly that "It [the main purposes] must have a return statement of type int, but its type is application determined."

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chloe notices that when she inserts a tab character, her insertion point moves to the right side of the page and the text she enters is right-justified. she does not want tab characters to behave this way. she should do which of the following? a. change the paragraph spacing. b. change the paragraph justification. c. remove the paragraph. d. remove the tab stop.

Answers

Option d: When Chloe adds a tab character, the insertion point shifts to the right side of the page. She doesn't want the tab characters acting in this manner. She needs to take the tab stop off.

To align text in a word processor by dragging the cursor to a predetermined point, use the tab key. The tab key or options in the word processor are typically used to complete it. It is a function of the paragraph formatting capability. Tabs are used for indenting text and for distributing it between the margins uniformly.

Typically, five normal spaces are equivalent to one tab. The tab can also refer to a horizontal tab. The word processor's tab key, the tab dialogue box, or the word processor's markup tools can all be used to access the tab capability. The tab key is used to activate the tab functionality, which causes the pointer to shift to the right.

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given list: ( 7, 11, 21, 23, 31, 55, 64, 70 )which list elements will be compared to key 11 using binary search? enter elements in the order checked.

Answers

The elements that will be compared to the key 11 using binary search are 7, 21, 23, and 31.

What is binary search?

Binary search is a search algorithm that is used to locate an item in a sorted array. It works by repeatedly dividing the search interval in half until the value is found. The algorithm begins by comparing the middle element of the array with the target value. If the target value matches the middle element, its position in the array is returned.

This is because binary search works by first finding the middle element (in this case, 31) and then comparing the key to the middle element. If the key is greater than the middle element, then the search continues on the right side of the list, which contains 21, 23, and 31. If the key is less than the middle element, then the search continues on the left side of the list, which contains 7.

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Analyze the similarities and differences between preventing phishing and preventing spyware attacks.

Answers

Both phishing and pharming have something to do with the domain name system (DNS), or the system that connects web browsers to websites

What is phishing and spyware?Phishing is an information-gathering technique rather than software. Malware may be used in this procedure, of course, but the term "phishing" refers to the real attempt to obtain information from a person. Emails providing links to malicious websites are frequently used in phishing scams.An email phishing scam is used to deceive the user. The email either contains a Trojan seed or a link to download spyware or a Trojan. As soon as it notices a user accessing the target page, the Trojan/spyware watches, records, and reports the user's activities and sends login information or other sensitive information to the malicious user.

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Rohan wants to write the description for the fields of the table, which he is about to create. In which view he should work
1. DESIGN VIEW
2. Datasheet view

Answers

Answer:

Design View

Explanation:

Datasheet view is for viewing and editing actual data

Adding a description of a field involves changing the structure of the table so it can be done only in design view or via code

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Determine the electron geometry (eg) and molecular geometry (mg) of the underlined atom CH3OCH3.Answer options:eg=trigonal bipyramidal, mg=tetrahedraleg=linear, eg=lineareg=tetrahedral, mg=tetrahedraleg=tetrahedral, mg=benteg=octahedral, mg=square planar Andre is going to buy a new couch. His current couch is 90 inches long. The new couch he is looking at is 25% less than that. How long is the new couch? an unlicensed assistive personnel (uap) is asked to transfer a client with left hemiplegia from the bed to a wheelchair. the nurse tells the uap the safest approach for this transfer is what method? what document do sponsoring brokers and sponsored licensees use to define the terms of their working relationship (complete solution)can someone help me here please thank you everyone! lovelots which form of treatment aims to gain insight into defenses and unconscious motivations and relies on the interpretation of defenses? 1. Describe the end-behavior of the polynomial: f(x) = -2x4 - 3x +3x-5A) f(x) -, as x -f(x) , as x B) f(x) , as x -f(x) , as x C) f(x) -, as x -f(x) , as x D) f(x) , as x -f(x) -, as x 5) Use the graph of f shown to find the x-values (if any) at which f is not continuous.A) 3B) 2C) 2,-3D) 0E) None of these g according to the study, what % of american adults say the internet has been at least important to them personally during the pandemic? Consider the following isomerization reactions of some simple sugars and values for their standard Gibbs free energy G:reaction A:reaction B:glucose-1-phosphatefructose-6-phosphateglucose-6-phosphate,glucose-6-phosphate, G=7.28 kJ/mol G=1.67 kJ/molPart ACalculate G for the isomerization of glucose-1-phosphate to fructose-6-phosphate. Find the Taylor polynomial T3(x) for the function f centered at the number a.f(x) = x + ex, a = 0T3(x)=? Explain what is meant by resolution of an instrumentA. Explain the difference between procision andaccuracy of a measurment.B. During experiment to find the stiffness constant of aspring, the following graph was obtained. By comparingthe theoretical equation to that of a straight line y=mx+c find the string constant. what is done with the overburden (waste rock) that is removed from mountaintop removal sites? it is deposited into mining tunnels in closed coal mines. it is stored close to the site and used to help restore the area after mining is finished. it is dumped into neighboring valleys. it is crushed and used as construction material. A student has created a Book class. The class contains variables to represent the following. An int variable called pages to represent the number of pages A boolean variable called isHardcover to indicate whether or not the book is hardcover The object story will be declared as type Book. Which of the following descriptions is accurate Question 3 of 10Complete the sentence. AsOA. opportunity costOB. voluntary exchangeC. physical capitalincreases, specialization increases as well. what type of chemical energy is used to drive the light independent reactions Choose a sentence with the correct use of hyphens. Will, I get my answers right away? what lesson did the narrator learn about thinking rationally after his interactons? what connections can you make to this experience and other experiences that you have had in your life? can yall help me pleaseee What are the solutions of 3x 6x 2 0?