220-1201 Practice Question: A technician is configuring a cloud-based virtual…

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  Insufficient storage IOPS

  Why it's wrong here

  Insufficient storage IOPS (Input/Output Operations Per Second) primarily affects applications that are heavily reliant on disk read/write operations, such as databases or large file processing. While low IOPS could cause delays in data retrieval or saving, a general application slowdown typically points to compute resource limitations like CPU or memory. If the application is slow in processing rather than just accessing data, storage IOPS is less likely to be the primary bottleneck.

• ✗

  Network bandwidth throttling

  Why it's wrong here

  Network bandwidth throttling would manifest as slow data transfer rates to and from the virtual machine, impacting tasks like downloading updates, accessing remote databases, or serving web content. It would not directly cause an application's internal computational processes or local execution speed to decrease. The application itself would run slowly due to processing limitations, not because of slow network communication.

• ✓

  Resource contention from other tenants

  Why this is correct

  In a multi-tenant public cloud environment, multiple virtual machines often share the same underlying physical CPU, memory, and storage resources of a host server. If other virtual machines (tenants) on the same host are experiencing high demand, their resource usage can lead to a 'noisy neighbor' syndrome. This contention means your VM's allocated resources are not consistently available, resulting in unpredictable performance degradation and a general slowdown of applications.

• ✗

  Incorrect operating system version

  Why it's wrong here

  An incorrect operating system version would typically lead to application incompatibility issues, such as the application failing to install, crashing upon launch, or exhibiting specific functionality errors due to missing libraries or API mismatches. It is highly unlikely to cause a gradual slowdown where the application still functions but performs poorly. Instead, it would likely prevent the application from running correctly or at all, rather than just making it slow.