Exam 350-401 topic 1 question 496 discussion

B is correct because: 1 - 'response' type is (class Response). 2 - 'UpdateConfig' converted 'response' to a String, so it's a String. 3 - When using write() the passed argument must be a String. NOT C, json.dump(ARG1, ARG2) method takes a python dictionary NOT a String, and convert it as a JSON file. HTH

Answer is C . After some research about OutFile=open( "ifaces.json " , "w") w > stands for write access in the folder "ifaces.json" it could be any address type /user/home/MyFile it's just a location , the name they gave it is confusing . INTERFACES.JSON > ifaces.json we need to use json.dump(UpdatedConfig,OutFile) we make a JSON string that we save in the location of OutFile that we earlier told it where it could be. OutFile.close() closes the "folder" that we just open in the first line

B is correct 2001:db8:1: is updated to "2001:db8:cafe so we need to write the UpdatedConfig string to the file to store the updated interface configuration.

In Python, JSON serialization is typically performed using the json.dump() or json.dumps() functions. json.dump() is used to serialize a Python object (such as a dictionary or a list) directly into a file-like object, while json.dumps() is used to serialize a Python object into a JSON string.

It is Option B: B: This option writes the UpdatedConfig variable, which presumably contains the modified configuration, to the file. It directly writes the modified configuration to the file in its current string form. This option is simple and effective if UpdatedConfig contains the desired JSON-formatted configuration.

import json import requests Creds = ("user", "Z#419010526SmnV") Headers = { "Content-Type": "application/yang-data+json", "Accept": "application/yang-data+json"} BaseURL = https://cpe/restconf/data" URL = BaseURL + "/Cisco-IOS-XE-native:native/interface" Response = requests.get(URL, auth= Creds, headers = Headers, verify=False) UpdatedConfig = Response.text.replace("2001:db8:1:", "2001:db8:cafe:") A: OutFile = open("ifaces.json", "w") OutFile.write(Response.text) OutFile.close() B: OutFile= open("ifaces.json", "w") OutFile.write(UpdatedConfig) OutFile.close() C: OutFile= open("ifaces.json", "w") json.dump(UpdatedConfig,OutFile) OutFile.close() D: OutFile = open("ifaces.json", "w") OutFile.write(Response.json()) OutFile.close()

The correct answer is B. This question is testing your knowledge of the difference between json.dump() and json.dumps(). When you see json.dump() -> It is used for saving JSON-formatted data to a file. json.dumps() - Dumps the data to a memory for future use. You can call the json-formatted data later for use such as sending it over a network or embedding it to a web page.

B is correct. C is wrong: json.dump() expects python <dict> type as input. in this case "Response.text.replace()" is a <str> data type in Python.

UpdatedConfig = Response.text bla-bla-bla -> type str type str not serialisible, so json.dump(UpdatedConfig, OutFile) - returns error Answer B, but it is no json-formatted file

Looks like its C https://pynative.com/python-json-dumps-and-dump-for-json-encoding/

Why not C