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svet-max [94.6K]
3 years ago
12

To locate all the documents in a Mongo database that match an expression, use the _____________ method.

Computers and Technology
1 answer:
Lena [83]3 years ago
4 0

Answer:

find()

Explanation:

When dealing with MongoDB the method that needs to be used in this scenario would be the find() method. This method basically returns all of the records that exist in the collection on which it is called, if no parameter is passed. If you pass a parameter/expression then only the records that match completely the expression will be returned to the user, otherwise nothing is returned. For example, on a database (db) we would call the following

db.find() ... This will return all records

db.find({specific}) ... This will return only the records that match specific.

You might be interested in
PLZ HELP!!! I'm a beginner in coding!
Lina20 [59]

import random

rock,paper,scissors = 1,2,3

choice = int(input("Please choose 1 2 or 3: "))

computer = random.randint(1,3)

player_won = False

draw = False

if choice == computer:

   draw = True

elif choice == 1 and computer == 3:

   player_won = True

elif choice == 2 and computer == 1:

   player_won = True

elif choice == 3 and computer == 2:

   player_won = True

if player_won:

   print("You won!")

elif not player_won and not draw:

   print("The computer won!")

else:

   print("It's a draw!")

First, I recommend importing at the beginning of your program. Also, you can combine all your same datatype variables in one line. You also need to cast your user choice to an integer so you can compare it with the computer's choice. I wrote the if, elif, and else statements using a boolean variable. I simply wrote all the possibilities that would result in the player winning and this would result in the player_won variable being true. If this is the case, we print to the console, "You won!"

4 0
3 years ago
Chegg A full bootstrap program Select one: a. may be infected by viruses. b. is stored in ROM to ensure to avoid any infection f
harina [27]

Answer:

Option b = "is stored in ROM to ensure to avoid any infection from viruses. "

Explanation:

In order to to understand the fundamentals of an Operating system in computer one needs to know what the bootstrap program is.

The BOOTSTRAP PROGRAM is first program that will run when the computer is switched on, thus the program( the BOOTSTRAP PROGRAM) will be the program to open the OPERATING SYSTEM.

The device in laptops and personal computers known as ROM is an acronym that stands for Read-Only Memory and it is a storage medium. Because of ROM inability to get Virus it is used in the storage of Bootstrap program.

8 0
3 years ago
If given program is executed, what will be output?
iogann1982 [59]

Answer:

16 22 399 214 351

Explanation:

es 1 .22 399 480

3 0
2 years ago
Suppose that you need to access a data file named "students.txt" to hold student names and GPAs. If the user needs to look at th
pogonyaev

Answer:

f = open('students.txt', 'r')

Explanation:

In the computing world, a command is an instruction to a computer program to execute a particular task. These instructions might be issued via a command-line interface, such as a shell program, or as a input to a network service as a component of a network protocol, or can be instructed as an event in a graphical user interface activated by the respective user selecting an option in a menu.

the f = open('students.txt', 'r') command line would be used to open a file named "students.txt", There are also various other types of commands for executing different task, for example:

1. ASSOC for Fix File Associations

2. FC for File Compare

3. IPCONFIG for IP Configuration

4. NETSTAT for Network Statistics

5. PING for Send Test Packets

6. TRACERT for Trace Route

7. POWERCFG for Power Configuration

e.t.c.

5 0
3 years ago
An IT code of conduct is a written guideline that helps determine whether a specific computer action is which of the following?
nadezda [96]
The answer to the question above is the last option: ETHICAL. The IT code of conduct, which is a written guideline, helps in determining whether a specific action is acceptable or ETHICAL. Basically, the IT code of conduct's purpose here is to maintain that the actions being done to the accepted and proper practices.
8 0
4 years ago
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