Sophia Web Development Unit 3

You passed this Milestone 5 questions were answered correctly. 1 question was answered incorrectly. 1 Which of the following would be a good design practice when building a web-based API? RATIONALE While elements of the other answers could be helpful for developing a web application as a whole, when designing a web-based API, the most important practice listed here is to create a clear, consistent naming convention for your methods and variables, so the connections within the program are intuitive to others. CONCEPT The Importance of Language 2 Student ID Name Major Erika S Physics Josh K Music In the above Students table, the bolded row is an example of which of the following? Relationship • Attribute RATIONALE A row of information in a database table is considered a record as it represents an individual element of the larger data set. In the above example, the Students table contains student data, so a record in this table represents a single student and contains all the fields that make up that student, like Name and Major. CONCEPT Design of a Database 3 Which of the following statements is true about pseudocode? RATIONALE Since pseudocode is used as a guide for how the code should behave without actually using syntax or grammar from any one programming language, we can say it is language agnostic. The same pseudocode can be implemented in multiple programming languages. CONCEPT Comparing Algorithms 4 In a database table, are the attributes that organize information within each individual table entry, much like columns in a spreadsheet. • records • fields • relationships RATIONALE Fields, much like columns in a spreadsheet, are what organize the information in each record. For example, in a students table, you could have separate fields for name, student ID, major, etc. which are all used to make up each student record in the table. CONCEPT Definition of Database 5 Which of the following statements about algorithms is true? RATIONALE Algorithms can be used to achieve just about any logical flow, but based on the input, expected output, and complexity of the logic to get from the input to the output, the efficacy of an algorithm can vary. CONCEPT Definition of an Algorithm 6 Which of the following statements about APIs is true? APIs are collections of methods that interact with data, rather than containing the data itself. • APIs are restricted to communicating with the data layer and cannot connect to other APIs. • APIs use CSS to query databases to retrieve desired information. • When building an API, engineers always have access to the data they want. RATIONALE APIs are sets of methods that use SQL to interact with the data layer to retrieve data, but sometimes the databases where the desired information is stored are not publicly accessible, in which case an engineer might need to have their API call a different API that does have access to that data. CONCEPT Definition of API