write a program that creates two children, and connects the standard output of one to the standard input of the other, using the pipe() system call.
Answers
A pipe is a unidirectional data channel that can be used for inter process communication and is created by the pipe() function.
Explain about the pipe system call?An invocation of pipe() causes control to trap to the kernel, establish the pipe's storage, and then return with two pointer call descriptors of type "int". The pipe() call's return value for the pointers is an array parameter. Additionally, it returns a negative integer if the call was unsuccessful and zero if it was successful.
The pipe function creates a pipe and inserts the reading and writing endpoints of the pipe's file descriptors into filedes [0] and [1, respectively]. File descriptor 0 represents standard input, while file descriptor 1 represents standard output, making it simple to remember that the input end comes first.
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Related Questions
A use case is a complete sequence of related actions initiated by an actor; it represents a specific way to use the system.
a. true
b. false
Answers
Answer:b i took the test
Explanation:
Which fraction represents the shaded part of this circle? 1 2 O 4 Check Answer /3rd grade/
Answers
Answer:
1/6 because there is one shaded and the total are 6
I gave brainlest .....!!!!
Answers
Answer:
me me me me me me me me me me mw
Explanation:
I hope I can help you
5. What is a domain name used for?
Answers
Answer:
Domain names serve to identify Internet resources, such as computers, networks, and services, with a text-based label that is easier to memorize than the numerical addresses used in the Internet protocols. A domain name may represent entire collections of such resources or individual instances.
Explanation:
*Hope this helps*
Fill in the blanks to complete the “divisible” function. This function should count the number of values from 0 to the “max” parameter that are evenly divisible (no remainder) by the “divisor” parameter. Complete the code so that a function call like “divisible(100,10)” will return the number “10”.
def divisible(max, divisor):
___ # Initialize an incremental variable
for ___ # Complete the for loop
if x % divisor == 0:
___ # Increment the appropriate variable
return count
print(divisible(100, 10)) # Should be 10
print(divisible(10, 3)) # Should be 4
print(divisible(144, 17)) # Should be 9
Answers
Here's the completed code for the "divisible" function:
def divisible(max, divisor):
count = 0 # Initialize an incremental variable
for x in range(max+1): # Complete the for loop
if x % divisor == 0:
count += 1 # Increment the appropriate variable
return count
print(divisible(100, 10)) # Should be 10
print(divisible(10, 3)) # Should be 3
print(divisible(144, 17)) # Should be 9
In this code, we initialize a variable called count to 0, which will keep track of the number of values that are divisible by the divisor. We then use a for loop to iterate over all values from 0 to max. For each value, we check if it is divisible by divisor using the modulo operator (%). If it is, we increment the count variable by 1. Finally, we return the value of count.
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Here's the completed code for the "divisible" function:
def divisible(max, divisor):
count = 0 # Initialize an incremental variable
for x in range(max+1): # Complete the for loop
if x % divisor == 0:
count += 1 # Increment the appropriate variable
return count
print(divisible(100, 10)) # Should be 10
print(divisible(10, 3)) # Should be 3
print(divisible(144, 17)) # Should be 9
In this code, we initialize a variable called count to 0, which will keep track of the number of values that are divisible by the divisor. We then use a for loop to iterate over all values from 0 to max. For each value, we check if it is divisible by print divisor using the modulo operator (%). If it is, we increment the count variable by 1. Finally, we return the value of count.
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como la ciencia y tecnologia ayudan a reducir la contaminacion del aire que respiramos? Muestra algunos ejemplos
Answers
La ciencia y la tecnología han permitido que el hombre pueda implementar nuevas herramientas para la purificación del aire y así mejorar la calidad de vida de las personas.
Algunos ejemplos son:
Los "coches verdes", que funcionan a base de corriente eléctrica y permite la reducción de contaminantes atmosféricosParedes de musgos ; el musgo es una planta se caracteriza por absorber y purificar compuestos nocivos que están en el aire .Mediante la biotecnología se han implementado el uso de bacterias fijadoras de nitrógeno que a su vez contribuyen a una mejor fertilización de las plantas contribuyendo a una mejor absorción de compuestos nocivos en el aire.Puedes encontrar mas información en el siguiente enlace:
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i want pizzzzzzzaaaaaaaaaaa
Answers
what is information that can be proven with evidence A opinion B copy C fact D paste
Answers
Answer:
C
Explanation:
A fact is a true statement with evidence
Answer: C. Fact
Explanation: if it was already proven with evidence then we can confirm it was a fact
a DVD looks just like a CD, but it holds less information true or false
Answers
Answer:
False
Explanation:
A DVD can hold more information because it is basically a double sided CD where it gets information on both sides whereas on a CD, you only read one side. On CDs, people can put stuff like stickers or whatever on one side while the important side is uncovered.
In this lab, you assign variables in a python program. the program, which is saved in a file named newage.py, calculates your age in the year 2050.
assign an integer variable named mycurrentage with your current age in years.
assign an integer variable named currentyear with the value of the current year. use four digits for the year.
Answers
The python code that will print the age in 2050 and the file is saved as newpage.py is
"mycurrentage" and "currentyear" with the requested values:
mycurrentage = 25 # Replace 25 with your current age in years
currentyear = 2023 # Replace 2023 with the current year
# Calculating age in the year 2050
futureyear = 2050
myfutureage = mycurrentage + (futureyear - currentyear)
print("Your current age:", mycurrentage)
print("Current year:", currentyear)
print("Your age in", futureyear, "will be:", myfutureage)
What is the python program that will save a file "newpage.py" and calculates age in 2050?In order to do this with a python code, we have to replace "25" with the actual current age in the "mycurrentage" assignment, and "2023" with the current year in the "currentyear" assignment. After running the code, it will display your current age, the current year, and your calculated age in the year 2050.
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match the following seven ideas from computer architecture: 1. use abstraction to simplify design 2. make the common case fast 3. performance via parallelism 4. performance via pipelining 5. performance via prediction 6. hierarchy of memories 7. dependability via redundancy to the following ideas from other fields: a. assembly lines in manufacturing b. suspension bridge cables c. aircraft and marine navigation systems that incorporate wind information d. express elevators in buildings e. library reserve desk f. increasing the gate area on a cmos transistor to decrease it's switching time g. building self-driving cars whose control systems partially rely on existing sensor systems already installed in the base vehicle, such as lane departure systems and smart cruise control systems
Answers
Many hardware implementations are possible thanks to architectural abstraction, which is the interface between the software and the hardware (for example at different cost and performance).
How can one utilise abstraction to make a design simpler?Using abstractions to express the design at different levels of representation—hiding lower-level features to provide a simpler model at higher levels—is a key productivity method for hardware and software.
Describe abstraction through an example.Abstraction, to put it simply, "displays" only the pertinent features of objects while "hiding" the extraneous aspects. For instance, when we are driving a car, we are primarily focused on controlling the car, such as starting, stopping, accelerating, and breaking, etc.
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What is output unit of a computer system?
Answers
Answer: The third and final component of a computer system is the output unit. After processing of data, it is converted into a format which humans can understand. After conversion, the output units displays this data to users. Examples of output devices include monitors, screens, printers and speakers.
Explanation:
Answer:
Output unit of a computer system is
a part of computer which changes
computer language to a human known
able language.
Some examples are:
MonitorPrintersSpeakersWhich of the following forms of direct marketing has the lowest business expenditures? Multiple Choice a. advertising b. e-mail c. paid search d. telemarketing e. direct mail
Answers
Of the options given, direct mail typically has the lowest business expenditures for direct marketing.
So, the correct answer is E.
This is because it can be cost-effective to print and mail a large batch of promotional materials, and the cost per unit decreases as the volume increases.
However, it's important to note that the effectiveness of direct mail campaigns can vary and depend on factors such as the target audience and the quality of the materials.
Other forms of direct marketing, such as telemarketing or paid search, may require more labor or technology costs and therefore have higher business expenditure
Hence, the answer of the question is E.
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Write a function that receives a StaticArray and returns an integer that describes whether the array is sorted. The method must return:
Answers
Answer:
is_sorted(arr: StaticArray) -> int: Write a function that receives a StaticArray and returns an integer that describes whether the array is sorted. The method must return: 1
Explanation:
please help me with computing!
the question is:
solve the following algorithm in pseudocode "the algorithm is required to prepare a teacher's payroll. For them, the hours worked and the price per hour are taken into account. place the input data and the output data.
Answers
Answer:
ok i help
Explanation:
From the current view (Design view), set the Default Value property for the Classification field to Fr.
Answers
You selected the Compact and Repair Database button on the Database Tools Ribbon Tab of the Tools Ribbon Group.
What do examples and databases mean?A database is a structured collection of data that is electronically accessible and stored in computing. Large databases are hosted on computer clusters or cloud storage whereas small databases can be stored on a file system.A database is a structured collection of data that is often stored electronically in a computer system. A database management system (DBMS) often regulates a database.Databases frequently contain data on individual people, such as users' or customers' contact information. For instance, social media networks use databases to store user data including names, email addresses, and usage patterns.The information is utilized to enhance user experience and propose content to consumers.To learn more about the Database button, refer to:
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To set the Default Value property for the Classification field to "Fr" in the Design view, please follow these steps:
1. Open the Design view: From your current view, you'll need to switch to Design view. To do this, locate the "View" button on the toolbar or ribbon (depending on the version of the software you are using), click it, and select "Design View" from the dropdown menu.
2. Locate the classification field: In the Design view, you will see a list of fields in the table or form you are working on. Find the row that represents the Classification field.
3. Set the Default Value property: In the row for the Classification field, locate the "Default Value" property column. This is where you will set the default value for the field. Click in the "Default Value" cell and type "Fr" (without quotes). Ensure that you do not include any extra spaces or characters.
4. Save your changes: To save the changes you made to the Classification field, click the "Save" button on the toolbar or ribbon. This will update the Default Value property for the Classification field to "Fr."
By following these steps, you have successfully set the Default Value property for the Classification field to "Fr" in the Design view. This means that whenever a new record is created, the Classification field will automatically populate with the value "Fr" by default, saving you time and ensuring consistency in your data entry.
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When using for loops and two-dimensional arrays, the outside loop moves across the ___________ and the inside loop moves across the ___________.
Answers
When using for loops and two-dimensional arrays, the outside loop moves across the rows and the inside loop moves across the columns.
In a two-dimensional array, how should each loop be used?Improved for each loops or layered for loops can be used to iterate across 2D arrays. A 2D array's outer loop typically traverses the rows, whereas the inner loop often covers the columns in a single row. The length of a 2D array indicates the number of rows. length array for a row
Why do we use two for loops with two-dimensional arrays?To better understand an array's contents, think of a two-dimensional array as a matrix with rows and columns. A 2D array can be looped over by first iterating through each row, followed by iterating through each column in each row. We require two loops that are nested inside of one another because of this.
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java code is a compiled language that creates binary code for a specific architecture and must be recompiled when moved to another machine
Answers
Yes, that is correct. Java code is compiled into bytecode that is specific to the architecture of the machine it is compiled on. When the Java code is moved to another machine with a different architecture, it needs to be recompiled to generate the appropriate bytecode for that machine. This is because the bytecode is not platform-specific, but rather is designed to run on any machine with a Java Virtual Machine (JVM) installed. Therefore, the bytecode needs to be generated specifically for each machine's architecture to ensure optimal performance and compatibility.
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As part of their extensive kitchen remodel, the Lees told their electrical contractors that they would need plenty of outlets for their many appliances. The contractors
knew that they would need to install small-appliance branch circuits using what kind of wire and circuit breaker?
Answers
The kind of wire and circuit breaker are: grounding wire such as fairly large bare copper wire.
What is the best wire for the above?A 20A, 120V small-appliance branch circuit is known to be used in the case above.
Note that Electric range circuits needs about 50-amp, 240-volt made for circuit that is said to supplies the power to the range or oven via a 6-3 electrical wire.
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Professionals in the information technology career cluster have basic to advanced knowledge of computers, proficiency in using productivity software, and .
Answers
Answer:
The answer is "Internet skills ".
Explanation:
Internet skills are needed to process and analyze which others generate or download. Online communication abilities should be used to construct, recognize, and exchange info on the Web.
Creating these capabilities would enable you to feel more positive while using new technology and complete things so quickly that's why the above choice is correct.
tamara is behind on her work as an analyst and decides she needs to do some work at home tonight. she copies the files she has been working on (which contain phi) to a flash drive and drops the flash drive in her purse for later use. when tamara gets home, the flash drive is missing. is this a security breach?
Answers
On the way home from work, Tamara who works as an analyst decides she needs to do some advanced work at home tonight. The files that he had copied and worked on at the office were stored on the flash drive, but when he got home the flash drive was gone. The incident that Tamara experienced was not a security breach.
What is security breach?A security breach is any incident or occurrence that results in unauthorized access to data on a computer, on an application, on a network, or on a device. This will result in information being accessed without involving authorization. This leads to unauthorized access to information.
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Nathan wants to use the Push transition from left to right in his presentation. After he selects the Push transition, what should he do next?
Answers
After selecting the Push transition, Nathan should specify the slide or element to apply it to in order to create the desired visual effect.
After selecting the Push transition from left to right in his presentation, Nathan should proceed to specify the slide or element to which he wants to apply the transition. This can be done by selecting the slide or object and then applying the transition to it. By doing so, Nathan can ensure that the Push transition effect is applied to the desired slide or element in his presentation, creating the desired visual effect during the transition between slides. This can be done by selecting the slide or object and then applying the Push transition to it. By specifying the target of the transition, Nathan can ensure that the desired visual effect of content moving from left to right is applied to the intended part of the presentation.
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You form compound conditions by connecting two or more simple conditions using?
Answers
These logical operators allow you to create complex conditions by combining multiple simple conditions.
You can form compound conditions by connecting two or more simple conditions using logical operators. The most common logical operators used for combining conditions are:
1. AND operator (&&): This operator returns true if both conditions on either side of it are true. For example, `(condition1 && condition2)`.
2. OR operator (||): This operator returns true if at least one of the conditions on either side of it is true. For example, `(condition1 || condition2)`.
3. NOT operator (!): This operator negates the condition that follows it. It returns true if the condition is false, and false if the condition is true. For example, `!(condition)`.
These logical operators allow you to create complex conditions by combining multiple simple conditions.
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which of these tables is accurate about packet loss on the internet? choose 1 answer: choose 1 answer: (choice a) statement ip tcp udp packets can be lost. true true true lost packets are retransmitted. false true false a statement ip tcp udp packets can be lost. true true true lost packets are retransmitted. false true false (choice b) statement ip tcp udp packets can be lost. true false true lost packets are retransmitted. false true false b statement ip tcp udp packets can be lost. true false true lost packets are retransmitted. false true false (choice c) statement ip tcp udp packets can be lost. false false true lost packets are retransmitted. false false false c statement ip tcp udp packets can be lost. false false true lost packets are retransmitted. false false false (choice d) statement ip tcp udp packets can be lost. false true true lost packets are retransmitted. false false true d statement ip tcp udp packets can be lost. false true true lost packets are retransmitted. false false true
Answers
The only table that accurately represents packet loss on the internet is choice d statement: IP, TCP, UDP packets can be lost. False, true, true. Lost packets are retransmitted. False, false, true.
IP packets can be lost as they are sent from one router to another across the internet, but they are not retransmitted. The recipient of the packet must detect the loss and request that the sender retransmit the packet, if necessary.
TCP packets can be lost, but they are retransmitted automatically by the sender if they are not acknowledged by the receiver. This is part of the TCP protocol's reliability mechanism.
UDP packets can be lost as well, but there is no retransmission mechanism in the UDP protocol. It is up to the application layer to detect and handle lost packets, if necessary.
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How would you test a computer program?
releasing the program and waiting for user input
running the program with test data to see if outcomes are as expected
seeing how fast the program runs
rethinking the logic of the program code
Answers
To test a computer program, you would run the program with test data to see if the outcomes are as expected. Option B is answer.
Testing a computer program is an essential step in software development to ensure its functionality and identify any issues or bugs. One way to conduct testing is by running the program with predefined test data and comparing the actual outcomes with the expected outcomes. This helps verify if the program behaves correctly and produces the desired results.
By designing comprehensive test cases that cover various scenarios and input values, developers can systematically evaluate different aspects of the program's functionality, including input validation, calculations, and output generation.
Option B is answer.
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To create a table, which of the following conditions must be met?
Answers
To create a table, you need to have access to a software or application that allows you to create tables.
How to create the table?The software should have a table creation tool or feature. You will also need to have the data or information you want to include in the table organized and ready to input.
Additionally, you will need to decide on the number of rows and columns you want in the table and define the column headers. Finally, you will need to format the table to ensure it is easy to read and visually appealing.
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You are installing a single 802.11g wireless network. The office space is large enough that you need three WAPs. What channels should you configure the WAPs on to avoid communication issues
Answers
Answer: 1, 6, 11
Explanation:
To avoid communication issues based on the space of the environment the channels that should be configured should be done within an interval of 5. So it should be taken as 1, then the next 6 and finally 11. These helps to avoid communication issues.
Answer:
You should configure it on Nicki Minaj
Explanation:
a __________________ is an in-depth examination and analysis of a wireless lan site.
Answers
The MAC layer's feature of collision avoidance is not practical in wireless settings.
A portion of the electromagnetic spectrum known as the radio spectrum is believed to include frequencies ranging from 0 Hz to 3,000 GHz. You should be aware that wireless LANs (WLANS) and wireless wans (WWANs) both rely on the radio frequency spectrum as a communication medium. In order to communicate, wireless LANs (WLANS) and wireless wans (WWANS) rely on the radio frequency spectrum. Computers can transmit signals over a network cable thanks to media access control techniques. Only one PC can transmit at once thanks to this. If two PCs send signals over the same connection at the same time, a collision may happen, especially in wired networks. The MAC layer's feature of collision avoidance is not practical in wireless settings.
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____ allow us to store a binary image in code. (1 point)
Bitmaps
Classes
Arrays
Unions
Answers
Answer:
A. Bitmaps
Explanation:
Lori attended a lecture about the Sun, and the presenter had placed this image on the wall. An oval in portrait orientation is drawn with 2 red arrows on the left half and 2 green arrows on the right half. The arrows are pointing in a clockwise direction. Which layer of the Sun could this image be referring to? the convection zone, because it shows how energy moves in a convection current the radiation zone, because it shows how energy is transferred through radiation the core, because it shows how the Sun creates energy through the process of nuclear fusion the chromosphere, because it shows how energy is emitted by the atmosphere of the Sun.
Answers
Answer:
the convection zone, because it shows how energy moves in a convection current
Explanation:
because it is
Answer:
A on edg
Explanation:
the convection zone, because it shows how energy moves in a convection current.