1Z0-1072-25 Question 161
Select 2You are operating a multi-region e-commerce platform on Oracle Cloud Infrastructure (OCI), with web servers deployed in Region A and database replicas in Region B. Recently, you noticed data replication times have increased, indicating potential high inter-region latency. Which TWO steps should you take to accurately measure and troubleshoot network latency between the two OCI regions?
- A
Deploy OCI Health Checks from vantage points in each region to measure and compare response times to cross-region endpoints.
- B
Use Network Path Analyzer in the OCI console to trace the packet path and identify any routing bottlenecks between the two regions.
- C
Create multiple public Dynamic Routing Gateways (DRGs) in the same region to handle cross-region traffic and reduce latency.
- D
Examine operating system log timestamps on the database servers in Region B to determine if CPU clock mismatches are causing delays.
- E
Collect cross-region egress metrics from OCI Monitoring to track overall network throughput and surges in data transfer usage.
Show answer and explanation
Correct answers: A, B
Explanation
When diagnosing inter-region latency in OCI, you should focus on tools and services that directly measure or trace the network path between regions. OCI Health Checks enable periodic probes from various vantage points, while Network Path Analyzer reveals intermediate hops and potential routing issues. These methods provide actionable insights into latency problems. Refer to OCI Networking documentation for details on Network Path Analyzer and Health Checks usage: https://docs.oracle.com/en-us/iaas/Content/Network/Concepts/networkpathanalyzer.htm and https://docs.oracle.com/en-us/iaas/Content/HealthChecks/Concepts/healthchecks.htm.
- A. Correct.
Correct. OCI Health Checks allow you to periodically probe endpoints from specific vantage points (including different OCI regions). By measuring and comparing response times, you can pinpoint whether latency is localized to a particular region or network segment.
- B. Correct.
Correct. Network Path Analyzer in OCI visually traces the route between two endpoints, helping identify congestion points or misconfigurations causing high latency. This step provides deeper insights into the hops and possible points of delay.
- C. Incorrect.
Incorrect. Creating multiple DRGs in the same region doesn't inherently reduce or measure cross-region latency problems. DRGs focus on secure connectivity and routing, not direct end-to-end latency measurement between regions.
- D. Incorrect.
Incorrect. CPU clock mismatches are highly unlikely to cause network latency issues. While checking system logs is part of asset management, it won�t directly reveal inter-region latency causes or solutions.
- E. Incorrect.
Incorrect. Monitoring egress metrics can reveal spikes in traffic volume, but it doesn�t measure actual round-trip or path latency. High traffic might contribute to congestion, but this alone isn�t a targeted latency measurement solution.