Q2. What does JSON stand for? Can you give an example of a JSON object. Q3. What is the purpose of a "projection" in a find query for MongoDB?

Answers

Answer 1

Answer:

Q2: JavaScript Object Notation

Q3: The $project function in MongoDB passes along the documents with only the specified fields to the next stage in the pipeline. ... The specification for $project command contain the inclusion of fields, the suppression of the _id field, the addition of new fields, and the resetting the values of existing fields.

Explanation:


Related Questions

Submit your business presentation that clearly compares and contrasts three different cell phone service plans..


I NEED IT DONE BY 5/24!!


I WILL PAY!!!!


100 points also


AND I WILL MAKE YOU BRAINLIEST!!

Answers

Answer:

My three phone service plans are T-Mobile, Verizon, and At&t.

How All of them compare is that the are phone companies and phone services. How T-Mobile contrast with Verizon is that T-mobile has  Bigger Nationwide 5g while Verizon has 5g for big cities, At&t doesn't have that much 5g yet. T-mobile has since combined with Sprint making it a bigger company. if you get Tello unlimited data from T-Mobile you pay $39 a month that means 468 dollars a year. Verizon's Unlimited plans are $80 a month that equals 960 a year. AT7T is much cheaper if you get the AT&T unlimited starters which is 35 a month so 420 a year. I  will go for T-mobile because it's not that cheap or expensive and it is very reliable.

Explanation:

Mark as Brainliest

To figure out how to use her MacBook Pro graphics software to update designs originally created on a DEC10, Marianne needs to use a ______ language?

Answers

Answer:

Glue Language

Explanation:

I'm not 100% sure, but here is the definition.

Glue language- A programming language that can be used to provide interoperability between systems not originally intended to work together

Briefly discuss the aesthetics and ergonomics of a hydraulic jack. First explain what these
terms mean and then discuss their application on a hydraulic jack.​

Answers

Answer:

For this model, aesthetics is defined as a measure of how attractive a product appears, and ergonomics is how well a product feels when used/held. ... Two important types of defects, part flash and crush, will be used to define ergonomic and aesthetic PA's, respectively.

write short cut of
fully justified​

Answers

Answer:

To make text justified, select and highlight the text first, then hold down Ctrl (the control key) on the keyboard and then press J. To make the text left aligned again, press and hold down Ctrl on the keyboard and press L

WILL GIVE BRAINLEST!!!!!!!! 10 POINTS!!!!
What are the three necessary parts of an if statement?
Question 13 options:
1) if, a variable, a semi-colon
2) if, a print statement, a colon
3) if, a condition, a colon
4) if, a print statement, a semi-colon

Answers

Answer:

option 4 : if, a print statement, a semi-colon

Explanation:

Hope it helps :)

Answer:

i think 4

Explanation:

hope it helps

Ask how many apples the user wants. Ask how many people the user will share the apples with. Find out how many apples will remain if you share the apples equally. Hint: use modulus %.

Answers

Answer:

The program in Python is as follows:

apples = int(input("Apples: "))

people = int(input("People: "))

apples%=people

print("Remaining: ",apples)

Explanation:

This gets the number of apples

apples = int(input("Apples: "))

This gets the number of people to share the apple

people = int(input("People: "))

This calculates the remaining apple after sharing the apple evenly

apples%=people

This prints the calculated remainder

print("Remaining: ",apples)

What does the Latin word VIDEO mean?
1 I vine
O I conquered
I see
I hear

Answers

It comes from the word: “I see”

Which of the following is NOT a common tactic that scammers use to
steal personal information?

Answers

I can guess this.

Lets say you got a " virus " on your computer and said to call this number 111-111-111-1111

" Hello sir, how may we help you today " This can be a robot, and can show maybe that it isnt a scam and can be seen as a message bot so they can record, and send you to the correct line for your issue.

You say " I got this virus on my computer and it said This computer has a virus known as a " insert virus name " and to call this number.

Submit your business presentation that clearly compares and contrasts three different cell phone service plans. I have TO HAVE IT DONE BY 5/24 I WILL PAY!!!!!! I WIll MAKE YOU BRAINLIEST... I WIll give points

Answers

Answer:

Ufone - It offers complete hybrid package for its user which includes 1000MB mobile data, 300 local call minutes, 1000 minutes on the same network and 15000 SMS.

Telenor - Telenor does not offer hybrid packages instead user has to purchase call and SMS packages separately but its packages are cheap.

Jazz - It offers unlimited data, unlimited call and SMS for the entire month. It is most suitable for professionals and businessmen who cannot keep track for their calls and SMS.

Explanation:

The cell phone service providers offer different plan for their customers. They introduces offer which is most demanded by their customers and they target their audience and tries to retain them by offering them special packages which suites them.

How can you make a search phrase more effective?

A.
by framing it as a question
B.
by using more specific search terms
C.
by using a different search engine
D.
by using all the search terms you can think of

Answers

Answer: C.

Explanation:

6x-7=2x +1 someone help​

Answers

6x-7=2x+1

-2x. -2x

4x-7=1

+7. +7

4x=8

÷4. ÷4

x=2

the answer is 2 !!!!!!

Find and explain about the calculating devices used in history. ​

Answers

Answer:

The earliest known calculating device is probably the abacus. It dates back at least to 1100 bce and is still in use today, particularly in Asia. Now, as then, it typically consists of a rectangular frame with thin parallel rods strung with beads.

hi good morning
Type the name of the protocol for each protocol define on the table below

nonsense answers well be reported​

Answers

Answer:

1. SSH/Telnet.

2. SMTP.

3. DNS.

4. DHCP.

5. HTTPS/SSL.

6. FTP

Explanation:

1. Provides connections to computers over a TCP/IP network: the standard protocol used for this is SSH/Telnet, through port number 22 and 23 respectively.

SSH is acronym for secure shell.

2. Sends e-mail over a TCP/IP network: SMTP using port number 25.

SMTP is an acronym for Simple Mail Transfer Protocol and it uses the standard port number of 25 to provide clients with requested services.

3. Translates URLs to IP address: DNS using port number 53.

A Domain Name System (DNS) can be defined as a naming database in which internet domain names (website URLs) are stored and translated into their respective internet protocol (IP) address. This simply means that, DNS is used to connect uniform resource locator (URL) or web address with their internet protocol (IP) address.

4. Automates assignment of IP address on a network: DHCP using port number 67.

Dynamic Host Configuration Protocol (DHCP) is a standard protocol that assigns IP address to users automatically from the DHCP server.

5. Securely transports web pages over a TCP/IP network: HTTPS/SSL using port number 443.

HTTPS is acronym for Hypertext Transfer Protocol Secure while SSL is acronym for Secure Sockets Layer (SSL).

6. Transports files over a TCP/IP network: FTP using port number 20 or 21.

FTP is an acronym for file transfer protocol.

Explanation:

I guess there is no need of mine for giving ans now

as the above guy has explained everything

Give 3 advantages of using shortcut key, especially in MS Office.

Answers

Answer:

Efficient and time-saving. Using shortcuts makes you more efficient at doing certain tasks on your computer. ...

Multi-tasking. Being a multi-tasker is sometimes required in life. ...

Health benefits.

Whst is the author's opinion about the school hours from 8:00 to 10:00 am?

Answers

Answer:

good

Explanation:

Does anyone else's Homepage look like this?
Does anyone know how to fix it??
It's been like this for days!!

Answers

Add me please please add please help me please please add please help me get it

Create a paper of at least 1,800 words describing the situation you selected and explaining the logic that would support an array.

Answers

Answer:

I dont know about 1800 words but I sure can tell you abit about array

Explanation: Array in simple sense refers to a collection of similar data. It holds data which is homogeneous in nature, meaning they are all alike. The use of array provide a lot of advantages in the fields of computer programming. When you declare a variable for an array, you can store as much data as you wish in the same variable without having to declare many variables. A 2X2 dimensional array can also be used in programming which represents matrices as well. The search process in an array too is really convenient and time saving. Also in an array, accessing an element is very easy by using the index number.

i was trying to put in a question but branily.in kept saying Don't use such phrases here, not cool! It hurts our feelings :( BUT WAT DID I DOOOO? its about keyboarding class

Answers

It’s because you used a word Brainly doesn’t allow

In thinking ahead to the future of technological innovation, what new technology products or digital software do you/would you like to see in the future?

Answers

Answer: Flying cars with jet propulsion in the wheels to lift it up in the air.

covert algebraic expressions into mathematical expressions s=ut+at² ​

Answers

Answer:

Python Expression:

u*t+ (1/2)* a*t** 2

que es la felicidad??​

Answers

Se feliz el amor es nada

¿Quién recibe la orden de ejecución de un programa enviada por el usuario?

Answers

Answer:

El sistema operativo.

Explanation:

En ciencias de la computación, una orden es una instrucción a un sistema operativo de computadora para realizar una tarea específica. Generalmente, una orden se emite a través de una interfaz de línea de órdenes de otro programa. Así, se trata de una instrucción a un programa de computadora para que actúe como intérprete para resolver un problema.  

Por ejemplo, podemos pedir a través de una orden que muestre el contenido de una carpeta, buscar un archivo en particular y especificar mediante parámetros adicionales cómo se debe realizar esta acción (por ejemplo, utilizando expresiones regulares para realizar una búsqueda).

Make the list of menu icon in MS Excel

Answers

●file

●home

●insert

●page layout

●formulas

●data

●review

●view

Which type of app is the best choice when it is critical to be able to use the device's features but performance is not critical? native web hybrid mobile

Answers

Answer:

Hybrid.

Explanation:

A software can be defined as a set of executable instructions (codes) or collection of data that is used typically to instruct a computer on how to perform a specific task and solve a particular problem.

A software development life cycle (SDLC) can be defined as a strategic process or methodology that defines the key steps or stages for creating and implementing high quality software applications. There are seven (7) main stages in the creation of a software and these are; planning, analysis, design, development (coding), testing, implementation and execution, and maintenance.

Some of the models used in the software development life cycle (SDLC) are;

I. A waterfall model: it can be defined as a process which involves sequentially breaking the software development into linear phases. Thus, the development phase takes a downward flow like a waterfall and as such each phase must be completed before starting another without any overlap in the process.

II. An incremental model: it refers to the process in which the requirements or criteria of the software development is divided into many standalone modules until the program is completed.

III. A spiral model: it can be defined as an evolutionary SDLC that is risk-driven in nature and typically comprises of both an iterative and a waterfall model. Spiral model of SDLC consist of these phases; planning, risk analysis, engineering and evaluation.

Basically, softwares are categorized into three (3) main categories based on the development platform and these are;

a. Web application.

b. Native application.

c. Hybrid application.

A hybrid application is a type of software application that is designed based on the combination of the elements of both web applications and native applications.

Typically, a hybrid application is a web application that is developed in a native application shell, using a standardized web programming language such as CSS, JavaScript, and HTML.

Generally, a hybrid application avails a programmer the opportunity to write a code for a mobile application once while accommodating or being compatible with multiple app platforms such as Android, Windows, iOS, etc.

Hence, a hybrid application is the best choice of an application when it's critical for the end users to be able to use the features associated with a device such as a mobile phone but performance isn't critical.

Answer: Hybrid

Explanation: Hybrid apps are suited to situations where performance is not critical but using the device’s features are.

what are human made materials ?​

Answers

Answer:

Natural materials may include wood, cotton, fur, or wool. Human-made materials may include plastic, rubber, glass, and Styrofoam.

Write a letter to the editor of a national newspaper complaining about the bad roads in your town or city, and giving at least three reasons why something should be done urgently about them.​

Answers

Answer:

Dear editor.

I am writing this letter to alert you to the serious problems we are facing on the main highways of our city, where traffic is completely neglected and the number of accidents has grown at an alarming rate.

Our highways have holes in the roads, lack of signage, traffic lights with malfunction and lack of traffic guards. All of this has left the traffic in the city a real chaos and has caused a great risk to the lives of drivers and pedestrians.

We went to the city hall to ask for a solution to this problem, but we didn't get an answer. For this reason, I come, humbly, to ask you to address this problem in your newspaper so that the attention of the authorities is brought to your attention.

Thank you in advance for your time and consideration.

Regards,

(Your name)

1. What is hydrolics?​

Answers

Answer: Mechanical machines that use liquids to move.

what is Internet?Write its importance in the today world.​

Answers

Answer:

Well it makes life easier of course we don't need it to survive but it just makes stuff easier

Explanation:

Answer:

The internet is a vast network that connects devices from all around the world allowing people to comment and share I information. the importance in today's world is extremely significant. People are able to communicate from any location. People can search anything up. People can make friends, videos and share ideas on the internet. people can have a voice through it and it greatly impacts our world as it has great impacts.

how to get off of supervised user

Answers

Answer:

On the Chromebook sign-in screen, select the profile you want to remove. Next to the profile name, select the Down arrow . Select Remove this user.

hope this helps

have a good day :)

Explanation:

1. It is another multimedia type you can work with in PowerPoint. If you have this on
your computer like an MP3 or WAV file, you can easily add them to your presentatie
A. Audio
C. Effects
B. Computer
D. Video
2. The simplest way to add an image to PowerPoint
A. Copy and Paste
C. Insert Image
B. Edit Presentation
D. Resize and Click
3. It is a stand-alone presentation that includes information presented with slides,
video, or digital representations and includes sound which might be a narrative,
music or sound effects.
A. Automated Presentation
C. Multimedia Presentation
B. Information Communication
D. Technology Presentation
1c​

Answers

Answer:

1. Audio.

2. Copy and paste.

3. Multimedia presentation.

Explanation:

PowerPoint application can be defined as a software application or program designed and developed by Microsoft, to avail users the ability to create various slides containing textual and multimedia informations that can be used during a presentation.

Some of the features available on Microsoft PowerPoint are narrations, transition effects, custom slideshows, animation effects, formatting options etc.

1. Audio is another multimedia type or format that an end user can work with in PowerPoint. If end users have an audio file such as MP3 or WAV file on their computers, they can easily add them to their presentation using Microsoft PowerPoint.

2. In Microsoft PowerPoint, one of the simplest way to add an image to a presentation is to copy the image from a directory and paste it on the work area.

3. Multimedia presentation is a stand-alone presentation which typically involves presenting informations with graphics, slides, texts, video, or digital representations and sound which might be a narrative, music or sound effects.

Other Questions
According to the Changes at Work lesson notes, which historical figure was best known for advocating for child labor laws?Question 3 options:Mary Harris JonesIda TarbellSamuel GompersJohn Muir Sandy cut three pieces of yarn to use for her art project. One piece was 1 foot 8 inches long, one was 10 inches long, and one was 2 feet 6 inches long. How much yarn did Sandy use? * GNRJGWUAU HELLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP PLease explain ALsssooooOOoo confirm your understanding of the text by writing a summary "the neglected senses" Evaluate. Write your answer as a fraction in simplest form. Find the MEAN, MODE, MEDIAN, and RANGE for the following Data: 6, 8,4, 1,4,7 The smallest unit which contains all the chemical properties of the substance containing two or more atoms is ? . For every 120 joules of energy input a car wastes 85 joules , find the useful energy output of the car ? anwers : a. dottedb. y=-x+4c. y=x-4d. y=x+1e. solidf. yesg. no Which equation results from adding the equations in this system?-2 x + y = 8. 5 x - y = -5.7 x = 137 x = 33 x = 33 x = 13 HELP IT'S DUE IN 2 MINUTES Given GH with endpoints (-7,3) andH (7. - 11), what are the coordinates of themielpoint of GH? Which word below is the best replacement for the underlined word? In his latest article, William writes,"There is an obligation to treat animals with more respect as we learn more about their capabilities. Select one:statescroakssaidsays Can someone please help with this ASAP thank you Briefly discuss the aesthetics and ergonomics of a hydraulic jack. First explain what theseterms mean and then discuss their application on a hydraulic jack. 50 POINTS FOR THIS MATH QUESTION Help, quickly if possible. Simplify [tex]\frac{4\sqrt{6} }{\sqrt{30} }[/tex] by rationalizing the denominator. Show your work. OK BESTIES I NEED SOME HELP ASAP!!!A two-dimensional cross section is taken of a three-dimensional object. If this cross section is a triangle, what can be the three-dimensional object? A. ConeB. CylinderC. PyramidD. Rectangular prism Abby earned $600 this pastsummer babysitting. She decidedto put this money in a bank thatearns a 5% simple interest rate.How many years will it take todouble her initial deposit?do step my step equation or your answer gets reported for false info THANKSSS. I'll mark brainlist