thread 0 holds the lock (i.e., it has called sem wait() but not yet called sem post()), and another thread (thread 1, say) tries to enter the critical section by calling sem wait(). in this case thread 1 must wait (putting itself to sleep and relinquishing the processor)? select one: a. thread 1will find that the value of the semaphore is -1 b. thread 1will find that the value of the semaphore is 1 c. thread 1will find that the value of the semaphore is 0 d. thread 1will find that the value of the semaphore is 2

Answers

Answer 1

c. thread 1 will find that the value of the semaphore is 0

When thread 0 holds the lock, it has called sem_wait() which decrements the semaphore value by 1. This means that the semaphore value is now 0. If thread 1 tries to enter the critical section by calling sem_wait(), it will find that the semaphore value is 0, meaning that the resource is currently being used by another thread (i.e., thread 0) and thread 1 must wait until thread 0 releases the lock by calling sem_post() which increments the semaphore value. So, thread 1 will put itself to sleep and relinquish the processor.

A semaphore is a synchronization object that controls access to a common resource by multiple processes in a parallel programming environment. Semaphores can be implemented using a counter, which is initialized to a non-negative value. When a process wants to access the resource, it decrements the counter (sem_wait()), if the counter is zero, the process is blocked until another process increments the counter. When a process is done with the resource, it increments the counter (sem_post()). The counter value tells the state of the semaphore, if the value is 0 means the resource is being used, a positive value means the resource is available and negative value means there are more threads waiting for the resource.


Related Questions

owever one in one hundred thousand is an albino (white). if you create a dataset of ten thousand squirrel pictures (i.i.d., no individual squirrel is pictured twice), what is the chance that you'll create a dataset with at least one albino squirrel

Answers

1) The chance of having albino squirrels is one in one hundred thousand.

(P) = 1/100000. A dataset of 10 thousand squirrels is observed.

What is a dataset?

A systematic collection of data known as a dataset is typically connected to a particular body of work. When dealing with tabular data, a data set is equivalent to one or more database tables, each of which corresponds to a specific record of the corresponding data set and each of whose columns and rows represents different variables.

Given:

Let X be a random variable that denotes the number of albino squirrel found in the dataset.

X ≈ Binomial (n,p)

n = total squirrels pictures = 10,000

p = probability of seeing albino squirrels = 1/10000

The probability of seeing at least one squirrel

= P (X ≥ 1)

= 1 - P( X< 1)

= 1 - P( X=0)

= 1- (10,000/0) (1/100000)⁰ (1-1/100000)¹⁰⁰⁰⁰⁻⁰

= 1 - (99999/100000)¹⁰⁰⁰⁰

= 1- 0.904836

= 0. 095164

= 0.095, as rounded to 3 decimal place. The probability is 0.095

2)

Now, P(X = 1)

= 1- (10,000/1) (1/100000)¹ (1-1/100000)¹⁰⁰⁰⁰⁻¹

= 10000/100000 × (99999/100000)⁹⁹⁹⁹

= 1/10 × 0.904846 = 0.0904846,

which is the probability of seeing an albino squirrel in the dataset. And this differs much from the true probability of seeing an albino squirrel which is 10,0000.

So, this dataset does not reflect the true distribution of albino squirrels.

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The complete question is;

Let's assume we take pictures of squirrels, most of them are either red or brown, however one in one hundred thousand is an albino (white)

1) If you create a dataset of ten thousand squirrel pictures (i.i.d,, no individual squirrel is pictured twice) , what is the chance that you'Il create a dataset with at least one albino squirrel? Round your answer to three decimal places (e.g: 0.025)

2) Let's say you're lucky enough and captured one, does this dataset reflect the true distribution of albino squirrels in the wild?

yes or no

you have recently noticed that a specific host server running some critical vms is using a concerning amount of cpu and disk resources. each vm on this host is using windows defender, and you have noticed that the windows defender system scans have been operating at the same time. which setting should be configured within group policy to mitigate these performance issues and still allow windows defender to operate?

Answers

The setting should be configured within group policy to mitigate these performance issues and still allow windows defender to operate is to randomize scheduled task times.

What purpose do settings serve?

Users can modify an application's features and behavior through its settings. The frequency of data synchronization between the program and the cloud is one example of how settings might affect background activity. Other settings can have a more significant impact, such as altering the user interface's layout and content.

What does "find a setting" refer to?

Field labeled "Find a setting." Enter search terms for the desired setting into the "Find a setting" field. The Options app begins proposing settings that are appropriate. Clicking or tapping on one of these will take you directly there if it's the one you're looking for.

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Which of the following agencies is the source of the EMS Agenda for the Future, the multidisciplinary national review of all aspects of EMS delivery? a. Department of Health and Human Services b. National Highway Traffic Safety Administration c. Federal Emergency Management Agency d. Department of Transportation

Answers

National Highway Traffic Safety Administration is the source of the EMS Agenda for the Future, the multidisciplinary national review of all aspects of EMS delivery.

What is National Highway Traffic Safety Administration?

The EMS Agenda for the Future was sponsored by the National Highway Traffic Safety Administration (NHTSA) and the Health Resources and Services Administration, Maternal and Child Health Bureau. This article focuses on EMS components of emergency care outside of typical health care institutions. The EMS Agenda for the Future, a multidisciplinary national evaluation of all areas of EMS delivery, is sourced from the National Highway Traffic Safety Administration. The National Highway Traffic Safety Administration (NHTSA) and the Health Resources and Services Administration (HRSA) produced the EMS Agenda for the Future, colloquially known as the Agenda, in 1996.

Here,

The EMS Agenda for the Future, a multidisciplinary national evaluation of all areas of EMS delivery, is sourced from the National Highway Traffic Safety Administration.

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question 4 when using the netcat command to test a network port, which option will provide output that is not useful for scripting, but is useful for the human eye?

Answers

The verbose flag, abbreviated "-v," is helpful since it formats the command's output such that it is legible by humans.

NETCAT: What is it?

A networking program called Netcat uses the TCP/IP protocol to read and publish data through network connections. When combined with other programs and scripts, Netcat can be used to send files straight from a client to a server and back. It is meant to serve as a secure back-end tool.

It is also a feature-rich platform for network analysis and troubleshooting that has the ability to set network parameters and establish a tunnel connection to a distant server.

The following are the main goals and ideal characteristics:

Create an initial socket to establish a connection between the client and the server.

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one type of security for wireless networks involves entering a list of the mac addresses for the devices that are allowed to access the network and excluding all others. this is called ma

Answers

Entering a list of the physical addresses of the devices that are permitted to access the network and excluding all others is one method of wireless network security. The term for this is IP filtering.

What is network ?

A network that's also contained inside a very limited region is known as a local area networks (LAN). It is typically constrained to a certain location, such a writing lab, building, or school. Servers and workstations are the two primary categories of computers that are networked. In most cases, servers are not directly used by people; instead, they run continually to offer "functions" to the other computers on the network and their human users. Printing and faxing, hosting of software, file sharing and storage, messaging, data retrieval and storage complete access control (security) for network resources, and many other services can be given. Workstations are so named because normally a human user uses them to communicate with the network.

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93.0% complete question a web application's code prevents the output of any type of information when an error occurs during a request. the development team cited security reasons as to why they developed the application in this way. what sort of security issues did the team have concerns about in this case?

Answers

The security issues the team had concerns about in this case is revealing database server configuration.

What is Web Security?

Web security, in general, refers to the safeguards and procedures that businesses use to guard against risks and cybercriminals who use the web channel.

Web security is essential for ensuring business continuity and reducing risk to users, users' data, and businesses.

Threats to web security include holes in websites and applications as well as attacks carried out by bad actors.

Web security risks are created to get beyond a company's security barriers, giving hackers and cybercriminals access to data, control over systems, and the ability to steal valuable assets.

Malware, ransomware, XSS, SQL injection, phishing, denial of service, and many other issues are typical threats to web security.

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Write the steps for viewing tab stops in a word document. Hurry pleasee!!

Answers

Click the home tab> paragraph group > paragraph setting
Then click tabs button
Set the tab stops position> chose alignment and leader options and the click set and ok

A Windows user is attempting to install a local printer and is unsuccessful on permissions.
Which of the following user types BEST describes this user?
A. Guest
B. Power User
C. Administrator
D. Standard User

Answers

"Guest" user types best describes this user when user is attempting to install a local printer and is unsuccessful on permissions.

What is Windows?

Microsoft created and marketed numerous proprietary graphical operating system families, which are all included in the Windows operating system family. Each family caters to a particular area of the computer industry. As examples, consider Windows NT for end users, Windows Server for servers, and Windows IoT for embedded devices. In a system that supports multiple viewing areas as part of a graphical user interface, a window is a distinct viewing area on a computer display screen ( GUI ). Windows are managed by a windows manager as part of a windowing system. A window may generally be resized by the user. You can perform a huge variety of typical tasks on your computer thanks to Windows.

Here,

"Guest" user types best represent this user while attempting to install a local printer but failing due to permissions.

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which tag could you use to add a brief summary of your markup page's contents for display in browser search results?

Answers

You might use the <meta> element to add a succinct description of the contents of your markup page so that it will appear in browser search results.

Click "Help" or the settings button in the browser's toolbar. You may view the kind and version of your browser by selecting the menu item that starts with "About." The World Wide Web's material can be seen and interacted with using an application program called a browser. This covers websites, movies, and pictures. An app for smartphones called Android browser allows users to access information on the web (World Wide Web). When you make a request for a web page from a specific website, these programs get the information from the server and show the web page on the screen. You can browse and navigate websites with the aid of these programs.

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Which of the following is a concept that works on the assumption that any information created on any system is stored forever?A. Cloud computingB. Warm siteC. Big dataD. Full archival

Answers

Cloud computing  is a concept that works on the assumption that any information created on any system is stored forever.

What does "cloud computing" mean?

The distribution of computing services via the Internet (the "cloud"), including servers, storage, databases, networking, software, analytics, and intelligence, enables quicker innovation, adaptable resource allocation, and scale economies.

                     Online Data Storage. Cloud Computing allows storage and access to data like files, images, audio, and videos on the cloud storage.

Why do you use the cloud?

When it comes to storing and retrieving data, cloud computing refers to a network of distant servers that are housed online. Numerous IT services, including servers, databases, software, virtual storage, and networking, are offered via the cloud.

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if you were to include in a home office setup a laptop that has an onboard fast ethernet port, how could you upgrade to gigabit ethernet?

Answers

The ethernet port on your laptop cannot be upgraded. The motherboard of the laptop houses the hardware, which cannot be changed or improved. You can, however, purchase a PCMCIA/PC card similar to this.

Select Properties by doing a right-click on Ethernet. To configure, click. The Ethernet card Speed & Duplex settings should be changed to 100 Mbps Full Duplex by selecting the Advanced tab. Note: The property field's choice may be referred to as Link Speed & Duplex or simply Speed & Duplex. Nowadays, the majority of modems and routers have Gigabit Ethernet ports. Your home network is therefore already outfitted with the most cutting-edge networking speeds available. Your maximum network is reached the instant you add a Fast Ethernet device to the mix.

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Identify any five input devices for the physically challenged users of computer​

Answers

Keyboards, mice, scanners, cameras, joysticks, and microphones are a few examples of input devices.

An input device in computing is a piece of hardware used to supply data and control signals to a system for processing information, such as a computer or information appliance. The following are some examples of input devices: keyboards, mice, scanners, cameras, joysticks, and microphones. According on the mode of input, input devices can be classed (e.g., mechanical motion, audio, visual, etc.) if the input is discrete (such as pressing a key) or continuous (such as the location of the mouse, which, despite being digitized as a discrete quantity, is quick enough to be deemed continuous) the total number of degrees of freedom (e.g., two-dimensional traditional mice, or three-dimensional navigators designed for CAD applications).

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question 5 if i wanted to change permissions of a file called honey bears, what command could i use to grant write access to the owner of the file without changing other permissions? the owner currently only has read access to the file.

Answers

You may modify a file's permissions by using the chmod command. To modify the permissions of a file or directory, you must be the owner of the object or the superuser.

The command and system function chmod is used in Unix and Unix-like operating systems to modify the access permissions and special mode flags (the setuid, setgid, and sticky flags) of file system objects (files and directories). These were first referred to collectively as its modes[1], and the name chmod was chosen as an acronym for change mode. The chmod system call and command initially debuted in AT&T UNIX version 1 together.Access-control lists were added to many file systems in addition to these most basic modes to increase flexibility as systems grew in number and types of users.David MacKenzie and Jim Meyering were responsible for creating the chmod version included in GNU coreutils.For Windows, a separate package containing the command is available.

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describe the three filters you intend to create? how did you come up with this idea? describe how you will incorporate user input into two of the filters. be as detailed as possible. describe the distribution of work between you and your partner. how will the tasks be divided and who will be responsible for what?

Answers

A colour filter, an exposure filter, and a noise filter are the three filters we plan to develop.

Describe noise .

Unwanted sound that is regarded loud, unpleasant, or disturbing to hearing is called noise. Physically speaking, there is no difference between unwanted sound and desired sound because both are waves travelling through a medium like water or air. When the brain hears and interprets a sound, a difference occurs. Any noise in the acoustic range is considered acoustic noise, whether it is planned (such as music or conversation) or inadvertent. Conversely, noise in electronics might not be detectable to the human ear and could have to be detected using special equipment. The term "noise" in audio technology referred to the undesirable leftover electronic noise signal that gave birth to the hissing sound.

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Select the correct pronoun for the sentence below. Then select the correct antecedent for the pronoun.Many applicants are judged almost exclusively on _____ spelling.Antecedent:

Answers

Select the correct pronoun for the sentence below. Then select the correct antecedent for the pronoun. Many applicants are judged almost exclusively on Antecedent spelling.

What is Antecedent spelling?

An antecedent is a noun or a noun phrase that provides pronouns with their meaning. Due to the fact that it frequently comes before the pronoun, it is known as an antecedent (the prefix ante- derives from the Latin for before or in front of).

                      Before using a demonstrative pronoun, an antecedent must be determined, just like with all other pronouns.

What makes it an antecedent?

It is called an antecedent because it often occurs before the pronoun (the prefix ante- originates from the Latin word meaning before or in front of). The antecedent is technically a postcedent, however, when it appears after the pronoun in some sentences.

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multi-threaded address space is composed of all except: select one: a. stack (1) b. stack (3) c. program code d. free

Answers

A multithreaded address space consists of everything except: Stack (3). Thread's address space is range of contiguous virtual addresses that operating system assigns to users or individually executed programs to execute instructions and store data.

What is the multithreaded approach?

Multithreading is a model of program execution that allows you to create multiple threads within a process that run independently while sharing process resources. Depending on the hardware, threads can run fully in parallel if they are distributed to their own CPU cores.

Does each thread in a multithreaded process have its own address space?

Threads share everything. There is one address space for the entire process. Each thread has its own stack and registers, but the stacks of all threads are visible in the shared address space.

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3 Anastasov, In which of the following situations is it most appropriate to use a heuristic solution

Answers

Finding the fastest route that visits every location among n locations, which requires n! possible routes be examined.

what the purpose of a heuristic in programming?Heuristics are defined as methods that enable users to quickly arrive at an approximation of an answer. Heuristic algorithms are employed when issues cannot be resolved in a reasonable amount of time and lack an exact solution. Finding the best route between multiple places in this problem takes n!. It is also looking into different options. It may just be implying that since there are several forms, designers should use those equations. To select the most effective route, they employ a number of techniques. In order to avoid providing tried-and-true solutions for linear algorithms, the primary idea is to apply heuristic approaches for complex or ambiguous problems. N! is required to measure the ideal route between multiple places. It also examines

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to save a previously saved file to a different location and/or with a different name, you would use which command after clicking file to open backstage view?

Answers

To save a previously saved file to a different location and/or with a different name, you would use the “Save As” command after clicking File to open the Backstage view.

This command allows you to choose a new location and/or name for the file. Additionally, you can also change the file type (e.g. from Excel to Word or PowerPoint) by selecting the appropriate file type from the “Save as type” dropdown menu.

You can change the file type from Excel to Word or PowerPoint by selecting the appropriate file type from the “Save as type” dropdown menu. For example, if you want to save an Excel file as a Word document, you would select “Word Document (*.docx)” from the dropdown menu and then click “Save”. This will save the file as a Word document instead of an Excel file.

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given list (23, 25, 27, 36, 38, 30, 21, 33, 24), what is the value of i when the first swap executes?

Answers

Each trip of the loop involves one swap. When the inner loop (which searches for the smallest element) is finished, the swap takes place at the conclusion of the outer loop.

What three types of loops are there?

Loops are necessity to understand that repeat a specific chunk of code until a certain condition is satisfied or a predetermined number of times. For.. upcoming loops, do loops, and while loops are the three major types of loops in Visual Basic.

In C, what do we use loops?

What benefits does looping offer? 1) It allows for code reuse. 2) By using loops, we may avoid writing the same code over. 3) We can iterate through the components of data structures by using loops.

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to import data from excel to access, you would begin by clicking the . a. property sheet button b. relationships tab c. external data tab d. edit relationships button

Answers

To import data from Excel to Access, you would begin by clicking the External Data. Hence option (c) is the answer.

What is the external data tab?

External data is information that comes from outside the business and is easily accessible to the general public. An organization can gain a better grasp of the environment they operate by using external data. The Transfer/External Data/Import menu item allows you to import data from systems outside of IBM Cognos Controller, and the External Data tab shows files that you have imported.

Select the checkboxes labeled Discarded by Filters and/or Discarded because they contain summation accounts if you want to discard some data. Any data produced outside of an organization is considered external data. Social media, satellite, consumer transactions, geo-location, and employment data are some examples of external data categories.

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A local sporting goods store sells guns. Each gun must be tracked by the government to aid in crime investigation and for other reasons. The most appropriate cardinality between the Order and Product (Gun) entities is represented by which ERD

Answers

One example of system utility software is Microsoft Windows (Incorrect). Drivers, which are examples of utility software, interact and control.

An example of system utility software is Microsoft Windows. However, Nancy is using an application software example called Spreadsheet in Excel. The only other category of software besides system utilities is application software (incorrect). It is accurate to say that the only other sort of software besides system utilities is application software. However, this choice does not fit and make sense in light of Nancy's work on the software. Application software includes spreadsheet programs like Excel (correct). Because an example of application software is Microsoft Excel, which is spreadsheet software. Direct control and interaction between application software and computer hardware (incorrect). Drivers, which are examples of utility software, interact and control.

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You have an azure storage account named storage1. You create the following encryption scopes for storage1: scope1 that has an encryption type of microsoft-managed keys scope2 that has an encryption type of customer-managed keys which storage services can be used with scope2?.

Answers

When customer-managed keys are set up for the storage account, data in Blob storage and Azure Files is always secured by them.

In order to use customer-managed keys with Azure Storage encryption, the key vault must have both soft delete and purge protection turned on. When you create a new key vault, soft delete is turned on by default and cannot be turned off. When persisting your data to the cloud, Azure Storage encryption automatically encrypts the data saved on Azure managed disks (OS and data disks) at rest. However, Azure Storage does not encrypt disks that have encryption enabled at the host level. One of the strongest block ciphers currently available, 256-bit AES encryption, is used to encrypt and decrypt data in Azure Storage in a transparent manner and is FIPS 140-2 compliant.

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which security operating platform capability allows organizations to exert positive control based on applications, users, and content, with support for open communication, orchestration, and visibility?

Answers

The answer is a Security Orchestration, Automation and Response (SOAR) platform. SOAR provides organizations with the ability to control their security posture based on applications, users, and content, with support for open communication, orchestration, and visibility.

What is SOAR?

Security Orchestration, Automation and Response, or SOAR, is a security operations framework that enables organizations to quickly and effectively respond to threats by automating and orchestrating existing security tools. SOAR provides an integrated platform for security teams to automate the collection and analysis of security data, and then respond to threats in a timely manner.

It allows organizations to automate repetitive tasks, respond quickly to threats, and gain visibility into their overall security posture.

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which of these statements accurately describes a dts role?

Answers

The NDEA is authorized to input and authorize DTS tickets on the traveler's behalf, according to the provided statement.

Does DTS still exist?

While it's true that its rival still receives the majority of the attention, DTS:X is still backed by AV companies like Onkyo, Kenwood, Pioneer, Suzuki, Marantz, Arcam, and Sony and is well regarded in the home theater industry.

Who may employ DTS?

The DTS online system automates travel and temporary duty (TDY). It allows members of the Army National Guard, Army Reserve, as Air National Guard to make direct contributions of their banking services and Dept Travel Charge Cards, as well as to create authorizations, make reservations, obtain approval, and generate payment vouchers (GTCC).

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This version of UNIX is an open source operating system that is an alternative to Windows.

Select one:
a. Mountain Lion
b. Lion
c. Linux
d. Windows

Answers

c. Linux version of UNIX is an open source operating system that is an alternative to Windows.

What is UNIX?

The original AT&T Unix, whose development began in 1969 at the Bell Labs research facility by Ken Thompson, Dennis Ritchie, and others, is the ancestor of the Unix series of multitasking, multiuser computer software platforms. AT&T licenced Unix to outside parties in the late 1970s, which led to a range of academic and commercial Unix variations from vendors like the University of California, Berkeley Berkeley, Microsoft, Sun Microsystems, HP/HPE, and IBM. Unix was first designed for use inside the Bell System. AT&T gave Novell its Unix rights in the early 1990s, and Novell later sold the UNIX brand to The Open Group, a business alliance established in 1996. The Open Group permits certified operating systems that adhere to the Single UNIX Specification to use the mark.

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"1. A DaaS arrangement _____.
a.
reduces hardware, software, and staffing related costs for the client
b.
allows clients to install, maintain, and monitor database in-house
c.
is much more expensive but also more secure than in-house databases
d."

Answers

A DaaS arrangement reduces hardware, software, and staffing related costs for the client.

A DaaS setup is what?

In a virtual desktop infrastructure known as desktop-as-a-service (DaaS), desktops are stored in the cloud and made available to remote users as needed. The backend of VDI is specifically hosted on the cloud.

DaaS is utilized where?

Data as a Service, often known as DaaS, is a term used in computing to refer to cloud-based software tools used to interact with data, such as maintaining data in a data warehouse or analyzing data with business intelligence. Software as a Service makes it possible (SaaS).

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Differentiate the software programs used to create audio and/or video by matching each with its description.
Made by Apple, this program can be used to create video
with audio and has many editing capabilities.
1.
This sound editing software can be used to record
2. professional quality sound files and is compatible with both
Mac and Windows systems.
3.
For home application, this simple tool can be used to record
audio and edit audio on Mac systems.
NEXT QUESTION
ASK FOR HELP
Final Cut Studio
Garage Band
Audacity
TU

Answers

Final Cut Studio is for home application, this simple tool can be used to record audio and edit audio on Mac systems. Garage Band is sound editing software can be used to record.

What is a software?

Software is a collection of instructions, data, or computer program that are used to run machines and carry out particular activities.

It is the antithesis of hardware, which refers to a computer's external components. A device's running programmes, scripts, and applications are collectively referred to as "software" in this context.

On Mac systems, you can record and edit audio using the straightforward utility Final Cut Studio, which is intended for home usage. Software for sound editing called Garage Band can be used to record.

Professional sound files are produced by Audacity, which works with both Mac and Windows systems.

Thus, this is the match for the given scenario.

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what is an easy way to make your wifi security stronger and make it more difficult for hackers to discover your wireless network?

Answers

Answer:

Enabling "Hidden SSID" in your AP settings

Ensuring you have WPA2 (or better) enabled with a strong password that you can remember

Disabling LAN access over wireless

Creating a separate guest network

CHALLENGE ACTIVITY 4.9.1: Enter the output of break and continue. Start Type the program's output 2 import java.util.Scanner; E'D:D:D:D: public class BreakAndContinue { public static void main(String [] args) { Scanner scnr = new Scanner (System.in); int stop; int result; int n; Input 6 stop = sehr.nextInt (); result = 0; Output for (n = 0; n < 10; ++n) { result += n* 3; if (result > stop) { System.out.println("n=" + n); break; System.out.println(result); ) Check Next Feedback? CHALLENGE ACTIVITY 4.9.2: Simon says.

Answers

Scanner input = new Scanner; imported java.util.Scanner; class Input public static public main(String[] args) (System.in).

A break statement is what?

The break statement's goal is to exit a loop as soon as possible. Consider the following code, which asks you to input the integers number x. If x is a multiple of 5, the breakpoint is carried out, ending the loop.

The use of the break statement

In C, the break keyword is used to remove the program's control from the loop. When a loop or switch statement is present, the breakpoint is used. The break statement terminates each loop individually, therefore in the event of feedback connections, it terminates the loop first before moving on to the outer loops.

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how did packets with the unknown host affect the overall network performance? what hosts and routers were affected? how does this game relate to the real internet?

Answers

A network packet chooses the fastest route to its destination to operate. This path is followed by every other packet in a message.

How do routers affect how Internet packets are routed?

The router serves as the gatekeeper and discovers every computer and device linked to the network. If the packet originates from an external host, the router routes it from the modem to the device that will be receiving the data.

What does a router perform in terms of sending packets?

When a router gets a packet, it checks its routing table to see if the destination address points to a device on one of the networks it is connected to or if the message has to be forwarded.

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