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Consider the pseudo code provided below:
Given the following tests, what additional test(s) (if any) would be needed in order to achieve 100% statement coverage, with the minimum number of tests?
Test 1: A = 7, B = 7, Expected output: 7
Test 2: A = 7, B = 5, Expected output: 5
100% statement coverage means that every line of code is executed at least once during testing. Based on the provided pseudo-code and the test cases given:
Test 1 executes the MIN = B statement when A and B are equal.
Test 2 executes the MIN = A statement and skips the inner IF since B is not equal to 2*A.
All statements within the code have been executed by these two tests, hence no additional test cases are needed to achieve 100% statement coverage.
What is the earliest stage in the application's SDLC at which performance efficiency testing can be performed?
The earliest stage in the application's SDLC at which performance efficiency testing can be performed is during requirements analysis. At this stage, performance requirements and goals are established, providing a baseline for what needs to be tested and verified throughout the later stages of development.
Below is the pseudo-code for the bingo program:
The bingo program contains a data flow anomaly. Which data flow anomaly can be found in this program?
In the provided pseudo-code for the Bingo program, the variable MIN is used in the statement MIN = MIN + A without being initialized with a value beforehand. This represents a classic 'use before define' anomaly, as the variable MIN must have an initial value before any operation like addition can be performed on it.
Which of the following statements about Application Programming Interface (API) testing is TRUE?
API testing involves testing the application programming interfaces directly and is often a critical part of integration testing. Here are the clarifications for each option:
A . API testing cannot be applied to distributed systems: This is incorrect. API testing is commonly used in distributed systems to ensure that different components interact correctly.
B . Combinatorial testing cannot be applied to API testing: This is incorrect. Combinatorial testing techniques can be very effective in API testing to cover various parameter combinations.
C . API testing may require the use of specialized tools: This is true. API testing often involves tools like Postman, SoapUI, and others to facilitate sending requests and validating responses, which may not be feasible manually.
D . APIs are loosely coupled, so timing glitches will not happen: This is incorrect. Even though APIs are designed to be loosely coupled, timing issues can still occur, especially in asynchronous operations and in systems where timing is critical.
Therefore, the correct answer is C. API testing may require the use of specialized tools.
Consider the pseudo code for the Answer program:
Which of the following statements about the Answer program BEST describes the control flow anomalies to be found in the program?
The provided pseudo code for the Answer program shows a WHILE loop that will always execute because the condition for the loop to terminate (a >= d) is never met within the loop's body. This results in an infinite loop. Additionally, since the value of 'b' is initialized with 'a + 10' and 'a' starts from a value that is read and then set to 2, 'b' will never be equal to 12. Therefore, the 'THEN' branch of the IF statement, which includes 'print(b)', is unreachable. These are control flow anomalies because they represent logic in the code that will not function as presumably intended.
