The answer is an internet service provider issue degrading the WAN connection. When a traceroute reveals high latency specifically at the ISP’s edge router, the bottleneck is isolated to the WAN link between your network and the cloud provider—a segment entirely under the ISP’s control. This points to classic ISP problems like congestion, suboptimal routing, or a degraded physical circuit, rather than issues within your local LAN or the cloud application’s resources. On the CompTIA Cloud+ CV0-004 exam, this scenario tests your ability to interpret traceroute output and differentiate between network segments; a common trap is blaming the cloud provider or internal firewall when the latency spike occurs after leaving your network. Remember the memory tip: “Edge router, ISP’s router”—if the delay is at the edge, the ISP is the wedge.
CV0-004 Operations and Support Practice Question
This CV0-004 practice question tests your understanding of operations and support. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is experiencing latency issues when accessing a cloud-based application. The cloud administrator runs a traceroute and notices high latency at the ISP's edge router. Which of the following is the MOST likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
An internet service provider (ISP) issue is degrading the WAN connection
High latency at the ISP's edge router indicates that the bottleneck is occurring on the WAN link between the company's network and the cloud provider, which is under the ISP's control. This is a classic symptom of an ISP issue, such as congestion, routing problems, or a degraded physical link, directly impacting the WAN connection. The traceroute output localizes the latency to the ISP's infrastructure, not to the company's internal network or the cloud application's resources.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
An internet service provider (ISP) issue is degrading the WAN connection
Why this is correct
High latency at ISP edge router indicates WAN connection issue.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
A misconfigured firewall rule is dropping packets
Why it's wrong here
Firewall rules cause drops, not high latency at ISP edge.
✗
The load balancer is sending traffic to unhealthy instances
Why it's wrong here
Load balancer misconfiguration would not show at ISP edge.
✗
The virtual machine hosting the application is under-provisioned
Why it's wrong here
Under-provisioned VM would cause application slowness, not ISP-level latency.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the distinction between latency caused by network infrastructure (ISP) versus application or server performance issues, and the trap here is that candidates may attribute high latency to internal misconfigurations (like firewalls or load balancers) when the traceroute clearly isolates the problem to an external hop.
Trap categories for this question
Command / output trap
Load balancer misconfiguration would not show at ISP edge.
Detailed technical explanation
How to think about this question
Traceroute uses ICMP Time Exceeded messages (or UDP/TCP probes) to map the path and measure round-trip time per hop. High latency at an ISP edge router often points to bufferbloat, where excessive buffering in the router's queue causes increased delay, or to a congested peering link where traffic is queued due to insufficient bandwidth. Real-world scenarios include ISP oversubscription or BGP routing issues causing suboptimal paths.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the CV0-004 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Operations and Support — This question tests Operations and Support — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: An internet service provider (ISP) issue is degrading the WAN connection — High latency at the ISP's edge router indicates that the bottleneck is occurring on the WAN link between the company's network and the cloud provider, which is under the ISP's control. This is a classic symptom of an ISP issue, such as congestion, routing problems, or a degraded physical link, directly impacting the WAN connection. The traceroute output localizes the latency to the ISP's infrastructure, not to the company's internal network or the cloud application's resources.
What should I do if I get this CV0-004 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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