181. A data dictionary is a special file that contains? a. The names of all fields in all files b. The data types of all fields in all files c. The widths of all fields in all files d. All of the mentioned
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| 181. | A data dictionary is a special file that contains? |
| a. | The names of all fields in all files |
| b. | The data types of all fields in all files |
| c. | The widths of all fields in all files |
| d. | All of the mentioned |
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- Pleaser refer on the attached file.QUESTION 13 Code a JSON file that contains the following: Three key-value pairings where the keys are id, name, and grade The value of id is to be 12345 The value of name is to be an object with its own two key-value pairings: firstName of John and lastName of Lennon The value of grade is to be 89107. A data dictionary is a special file that contains a. the names of all fields in all files b. the data types of all fields in all files c. the widths of all fields in all files d. All of the above
- 74. The file which consists of the ordering fields for records is called a. sequential file b. ordered file c. spanned file d. both a and bdef import_and_create_bank(filename): ''' This function is used to create a bank dictionary. The given argument is the filename to load. Every line in the file should be in the following format: key: value The key is a user's name and the value is an amount to update the user's bank account with. The value should be a number, however, it is possible that there is no value or that the value is an invalid number. What you will do: - Create an empty bank dictionary. - Read in the file. - Add keys and values to the dictionary from the contents of the file. - If the key doesn't exist in the dictionary, create a new key:value pair. - If the key does exist in the dictionary, increment its value with the amount. - You should also handle the following cases: -- When the value is missing or invalid. If so, ignore that line and don't update the dictionary. -- When the line is completely blank. Again, ignore that line and don't update the…82. The ordered files with primary index are called a. linear spanned file b. indexed sequential files c. relative spanned file d. indexed spanned file
- 78. The file which consists of ordering attribute which is non key in nature called a. sequential file b. spanned file c. master file d. clustered filePlease help me writr down the right code for this file below.IN PYTHON - please help with lines beginning with ###TODO import csvimport random as randimport sys # define functions def load_csv_data(filename): """ load the data from csv file returns a tuple containing two lists: col_names: first row of csv file (list of strings) row_data: all other rows of csv file (list of list of strings) if error is encountered reading filename, returns -1 """ try: data = [] ### TODO - load the data from csv file ### use csv.reader to append rows of filename to data except: print("Error loading data.") return -1 # if successful, return tuple of column names and row data col_names = data[0] row_data = data[1:] return (col_names, row_data) def display_menu(): ### TODO - print the main menu print("Main Menu") print("1 - Get Clean Sample") print("2 - Calculate Total Profit in Sample") print("Q - Quit") def get_valid_menu_option(): ### TODO - get valid menu…
- Python How to read a file into a dictionary when key is on the first line of the text and value is on the second line of the text Example of the text file: Alabama (should be assign as key) Montgomery (should be assign as value) Alaska Juneau Arizona PhoenixTopics: Functions, Files Read and write, DictionarySuppose you are given an input file of a document that only contains English words, spaces, commas(always followed with one space) and periods (always followed with one space). Your task is to readthe file, count the word frequency by ignoring the letter case, output the frequently used words (i.e.,the words occurred more than once) and the most frequently used word among all of them.Lab Scenario: Count the word in a document1. The program reads from an already provided input file: “document.txt”, which containsseveral paragraphs separated by an empty line.2. You will perform the file open operation. And then perform the read operation with your choice ofread functions and read the content of the file.3. Once you are done reading, start processing the contents of the file using a dictionary where thekey would be the word in lowercase and the corresponding values would be word frequency whichwill be the number of occurrences in the…393. File organization system that uses two files for every data file is said to be a. Cluster sequential files b. Indexed sequential files c. Cluster random files d. Indexed random files