Analysis:

Given the problems encountered with the first two websites, the types of testing needed for the

BestForFood website should address similar issues related to performance under peak load and data

volume growth.

Load Testing:

Load testing helps identify the behavior of the website under expected user load conditions. It

simulates multiple users accessing the website simultaneously to ensure it can handle peak traffic

without performance degradation. This is essential given the underestimation of concurrent user

access for the first two websites.

Scalability Testing:

Scalability testing evaluates how well the system can handle increased loads by scaling up its

resources, such as adding more servers or increasing database capacity. This is crucial for ensuring

that the website can manage rapid data volume growth and increased user traffic over time.

Explanation of Incorrect Options:

B . Stress Testing:

Stress testing pushes the system beyond its normal operational capacity to identify breaking points.

While important, it is more extreme than necessary for addressing the issues of underestimated user

access and data volume growth.

D . Portability Testing:

Portability testing assesses how well the software can be moved from one environment to another,

which is not directly related to the performance issues described.

E . Recoverability Testing:

Recoverability testing ensures the system can recover from failures, which is not the primary concern

here.

Reference:

The ISTQB CTAL-TTA syllabus covers different types of non-functional testing and their relevance.

Load and scalability testing are emphasized for addressing performance and capacity-related risks.

Sources:

ISTQB-CTAL-TTA Syllabus

General knowledge on non-functional testing practices.