Reliability Testing CTAL-TTA Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   When calculating availability, which of the following should be included in the total time?

   • AOnly planned downtime
   • BNeither planned nor unplanned downtime
   • CBoth planned and unplanned downtime
   • DOnly unplanned downtime
   Reveal Solution Discussion Select an answer first
2. 7application · medium

   A telecom company is planning reliability testing for a new network management system. The system must have a failure rate of less than 0.1% per month and be available 99.99% of the time. The test team has limited resources and must prioritize. Which activity should be the primary focus of the reliability test plan?

   • AAllocating the largest portion of the budget to availability testing.
   • BSelecting the most experienced testers for the reliability test team.
   • CPurchasing additional hardware to simulate realistic network conditions.
   • DDefining measurable reliability objectives and selecting test techniques to measure them.
   Reveal Solution Discussion Select an answer first
4. 8expert · hard

   A distributed system is designed to be fault tolerant by replicating data across multiple nodes. During testing, the team discovers that when one node fails, the system continues to operate but the data on the remaining nodes is inconsistent. Which test should be added to the reliability test specification?

   • AA fault tolerance test that verifies data consistency across nodes after a node failure.
   • BAn availability test that measures the downtime during a node failure.
   • CA maturity test that measures the failure rate of the nodes.
   • DA recoverability test that verifies the failed node can be restored from a backup.
   Reveal Solution Discussion Select an answer first
5. 9foundation · easy

   What is the purpose of defining reliability objectives in a reliability test plan?

   • ATo document the system's architecture
   • BTo specify the expected reliability levels the system must achieve
   • CTo list all possible test cases for the system
   • DTo assign specific testers to each test activity
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A software team is writing reliability test specifications for a new messaging application. The specification must include criteria for evaluating reliability growth. Which element should be included in the specification?

   • AA schedule for planned maintenance windows.
   • BA definition of failure intensity and a target value for the end of the test period.
   • CA description of the backup and restore procedures.
   • DA list of all possible failure modes and their severity.
   Reveal Solution Discussion Select an answer first