Python_Asynchronous_Programming_FP_MCQs_Answerspdf

Course Path: Data Science/DATA SCIENTIST'S TOOLBOX/Python Asynchronous
Programming
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Intermediate Quiz
1.Multiple threads running on the same CPU core is ______.
1. Parallelism
2. Concurrency
3. Multiprocessing
4. Asynchronous
Answer: 2)Concurrency
2.asyncio was introduced in _______ version of Python.
1. 3.6
2. 3.5
3. 3.4
4. 3.7
Answer: 3)3.4
3.asyncio is generally perfect for ___ apps.
1. Synchronous
2. IO-bound
3. CPU-bound
4. Unstructured network code

Answer: 2)IO-bound
4.asyncio does not scale well.
1. True
2. False
Answer: 2)False
5.Which module can be used to implement parallelism in Python3?
1. await
2. threading
3. multiprocessing
4. asyncio
Answer: 3)multiprocessing
6.Asynchronous programs are always faster.
1. False
2. True
Answer: 1)False
7.In purely concurrent programs, only one CPU core is used.
1. False
2. True

Answer: 2)True
8.Which module can be used to implement asynchronous communication in Python3?
1. await
2. threading
3. multiprocessing
4. asyncio
Answer: 4)asyncio
9.In apps using asyncio, who decides when a context switch can be done?
1. Code
2. Indeterminate
3. Random
4. OS
Answer: 1)Code
10.asyncio apps must have at least ________ threads of execution.
1. 3
2. 5
3. 2
4. 1
Answer: 4)1
11.In asyncio apps, when is context switching done?
1. Randomly
2. As decided by OS
3. Indeterminate

4. At points defined by code
Answer: 4)At points defined by code
12.In apps using threading, who decides when to do a context switch?
1. Programmer
2. OS
3. App
4. Random
Answer: 2)OS
13.Name the low-level module on which threading is based.
1. _thread
2. thread
3. _THREAD
4. _threading
Answer: 1)_thread
asyncio: Final Assessment
1.Name a way in which multiprocessing process can be started.
1. run
2. start()
3. init
4. spawn

Answer: 4)spawn
2.A callable object in Python must have _______ function.
1. invoke()
2. invokable()
3. callable()
4. call()
Answer: 4)call()
3.uvloop can be used as a drop-in replacement for the default event loop in asyncio.
1. False
2. True
Answer: 2)True
4.The key identifying the type of an asyncio event is ______________.
1. Event-cat
2. Event-category
3. Event-type
4. type
Answer: 2)True
5.The event loop is the heart of the asyncio app.
1. False
2. True

Answer: 2)True
6.Which among the following is not a way to schedule a coroutine for execution?
1. asyncio.run()
2. schedule()
3. create_task()
4. await
Answer: 2)schedule()
7.uvloop is a part of the standard library.
1. True
2. False
Answer: 2)False
8.For a class inheriting Thread, which method can be overridden other than the constructor?
1. run()
2. start()
3. init()
4. action()
Answer: 1)run()
9.uvloop is distributed under _______ license.
1. Apache
2. MIT
3. GPL
4. Proprietary

Answer: 2)MIT
10.Forkserver process in multiprocessing is multi-threaded.
1. False
2. True
Answer: 1)False
11.Just calling a coroutine will cause it to be executed.
1. False
2. True
Answer: 1)False
12.Which function is used to run awaitables concurrently in asyncio?
1. await()
2. async()
3. gather()
4. run()
Answer: 3)gather()
13.What is the full form of GIL?
1. Global Interactive Length
2. Global Interpreter Lock
3. Global Interactive Lock
4. Global Interpreter Low

Answer: 2)Global Interpreter Lock
14.All resources of the parent process is inherited in the fork method of starting a
multiprocessing process.
1. True
2. False
Answer: 1)True
15.fork method to start a multiprocessing process works only in UNIX-based systems. True or
false?
1. False
2. True
Answer: 1)False
16.Which module can be used to implement concurrency in Python 3?
1. asyncio
2. multiprocessing
3. threading
4. await
Answer: 3)threading
17.Which method is executed when the start() method of a thread object is called?
1. __run__()
2. run()
3. start()
4. init()

Answer: 2)run()
18.An asyncio future represents an eventual result.
1. True
2. False
Answer: 1)True
19.ASGI stands for ______________________.
1. Asynchronous Server Gate Interface
2. Asynchronous Serving Gate Interface
3. Asynchronously Serving Gateway Interface
4. Asynchronous Server Gateway Interface
Answer: 4)Asynchronous Server Gateway Interface
20.What is the biggest limitation of Cpython?
1. Asynchronous Server Gate Interface
2. Threads
3. GIL
4. Subprocesses
Answer: 3)GIL
21.Name the default method to start a multiprocessing process in Linux.
1. spawn
2. init
3. forkserver
4. fork

Answer: 4)fork
22.Ideally, how many times should asyncio.run() be called?
1. shouldn’t be called.
2. two
3. one
4. three
Answer: 3)one
23.set_start_method() can be called more than once in the same program.
1. True
2. False
Answer: 2)False
24.WSGI also supports asynchronous apps.
1. True
2. False
Answer: 2)False
25.Name the method of starting a multiprocessing process which is not available in UNIX-based
systems.
1. Forkserver
2. Spawn
3. All the options
4. Fork

Answer: 2)Spawn
26.Which is the method used to change the default way to create child processes in
multiprocessing?
1. start_method()
2. set_method()
3. reset_start_method()
4. set_start_method()
Answer: 4)set_start_method()
27.uvloop will also work on Python 2.0
1. True
2. False
28.ASGI is a specification.
1. True
2. False
Answer: 1)True
29.Name the reference implementation of Python.
1. IronPython
2. Jpython
3. Jython
4. Cpython
Answer: 4)Cpython

30.ASGI also supports WSGI apps.
1. False
2. True
Answer: 2)True
31.Name the default method to start a multiprocessing process in Windows.
1. fork
2. spawn
3. init()
4. forkserver
Answer: 2)spawn
32.asyncio coroutines are declared using _______.
1. decorator
2. def
3. async/await
4. function
Answer: 3)async/await
33.In ________ method, a server is created to start a multiprocessing process.
1. Fork
2. Spawnserver
3. Spawn
4. Forkserver
Answer: 4)Forkserver

34.Uvicorn is an implementation of ASGI.
1. False
2. True
Answer: 2)True
35.Events are being sent as _________.
1. Arrays
2. Dictionaries
3. Lists
4. Tuples
Answer: 2)Dictionaries
36.WSGI apps can also run ASGI apps.
1. True
2. False
Answer: 2)False
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