Exam AZ-120 topic 2 question 10 discussion

The right answers should be: Yes, Yes, Yes About the first from https://docs.microsoft.com/en-us/azure/virtual-machines/workloads/sap/sap-ha-availability-zones When deciding where to use Availability Zones, base your decision on the network latency between the zones. The latency between the two DBMS instances that need to have synchronous replication. The higher the network latency, the more likely it will affect the scalability of your workload. About the second. ABAPMeter allow to compare performance of different instances of a SAP System than it provide info for evaluate system performance. About the third. niping is suggested in the reported document as the tool to collect info for compare different latency between zones.

excert from (Yes, yes, yes) https://docs.microsoft.com/en-us/azure/virtual-machines/workloads/sap/sap-ha-availability-zones#:~:text=In%20some%20Azure%20regions%2C%20the%20network%20latency%20among%20the%20three,2%20milliseconds%20is%20not%20correct. In some Azure regions, the network latency among the three different zones can be vastly different. In other regions, the network latency among the three different zones might be more uniform. The claim that there is always a network latency between 1 and 2 milliseconds is not correct.

The question here is actually who can understand correctly the words "limiting factor" action mean of the question author...so confusing... https://learn.microsoft.com/en-us/azure/sap/workloads/high-availability-zones#network-latency-between-and-within-zones "When deciding where to use Availability Zones, base your decision on the network latency between the zones. Network latency plays an important role in two areas: Latency between the two DBMS instances that need to have synchronous replication. The higher the network latency, the more likely it affects the scalability of your workload."

Yes, Yes, Yes

The provided answer is totally messed up. What is the author thinking. Answer is YES, YES, YES. Data Centers/Zones within AZ do not guarantee low latency at all. So this is not a proffered method for deploying of spreading SAP workload access Zones in a AZ.

Ans: YES, YES, YES

All three YES YES YES

A should be yes: When deciding where to use Availability Zones, base your decision on the network latency between the zones. Network latency plays an important role in two areas: Latency between the two DBMS instances that need to have synchronous replication. The higher the network latency, the more likely it will affect the scalability of your workload. The difference in network latency between a VM running an SAP dialog instance in-zone with the active DBMS instance and a similar VM in another zone. As this difference increases, the influence on the running time of business processes and batch jobs also increases, dependent on whether they run in-zone with the DBMS or in a different zone.

Ans - Yes, Yes, Yes. Network traffic between assets that are deployed in two different Azure regions experience significant network roundtrip latency. The latency is significant enough to exclude synchronous data exchange between two SAP HANA instances under typical SAP workloads. Since the question is based on synchronous replication so the network latency plays an important role and hence the answer for first statement is 'Yes'.

Ideally it is Yes, Yes, Yes, Network latency is deciding factor for any kind of replication.

ans should be yes yes yes

YES...YES...YES

However, it is in an "availability zone" where it will have a low latency, that would change if it were in another region. The answer is NO YES YES.

1st Ans shoudl be A: Network bandwidth is a limiting factor

When deciding where to use Availability Zones, base your decision on the network latency between the zones. Network latency plays an important role in two areas: Latency between the two DBMS instances that need to have synchronous replication. The higher the network latency, the more likely it will affect the scalability of your workload. The difference in network latency between a VM running an SAP dialog instance in-zone with the active DBMS instance and a similar VM in another zone. As this difference increases, the influence on the running time of business processes and batch jobs also increases, dependent on whether they run in-zone with the DBMS or in a different zone. https://docs.microsoft.com/en-us/azure/virtual-machines/workloads/sap/sap-ha-availability-zones#the-ideal-availability-zones-combination