Question 1mediummultiple choice
Full question →Question 275 of 300
mediummultiple choiceObjective-mapped
ACE Practice Question: A team wants to allow inbound HTTPS traffic (TCP…
This ACE practice question tests your understanding of a team wants to allow inbound https traffic (tcp…. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 team wants to allow inbound HTTPS traffic (TCP port 443) from the internet to instances tagged 'web-server', while blocking all other inbound traffic. What firewall configuration achieves this?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
A Cloud Armor policy allowing only HTTPS requests to port 443
Cloud Armor applies at the load balancer layer for L7 policy enforcement — it doesn't replace VPC firewall rules for controlling which ports are accessible to instances.
B
Best answer
An ingress allow rule for port 443 from 0.0.0.0/0 targeting the 'web-server' tag, relying on the implied deny for other traffic
GCP's implied deny-all ingress rule (priority 65535) blocks all traffic not explicitly allowed. A single allow rule for port 443 is all that's needed.
C
Distractor review
An ingress allow rule for port 443 and a separate egress deny rule for all other ports
Egress rules control outbound traffic from instances — they don't affect inbound traffic from the internet. An egress deny would also break outbound connectivity.
D
Distractor review
An ingress deny rule for all ports from 0.0.0.0/0, plus an ingress allow for port 443 with lower priority
An explicit ingress deny-all at a higher priority than the allow rule would override and block the allow — this configuration would break HTTPS access.
Common exam trap
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Technical deep dive
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
- Standard ACLs match source addresses.
- Extended ACLs can match source, destination, protocol and ports.
- The first matching ACL entry is used.
- There is usually an implicit deny at the end.
TExam Day Tips
- Check inbound versus outbound direction.
- Read the ACL from top to bottom.
- Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Related practice questions
Related ACE practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
What is the correct order of the Google Cloud resource hierarchy from highest to lowest level?
Question 2
A compliance archive stores legal documents accessed at most once per quarter. Which Cloud Storage class minimizes storage cost while meeting that access pattern?
Question 3
Which gcloud command creates a Compute Engine VM named 'web-01' using the e2-medium machine type in zone us-central1-a?
Question 4
A team wants to receive an email alert when the average CPU utilization of VMs in a managed instance group exceeds 80% for more than 5 minutes. What should they create in Cloud Monitoring?
Question 5
A junior developer needs read-only access to all GCP resources in a project. Which IAM role grants the minimum permissions required?
Question 6
A startup creates its first Google Cloud project. Before deploying any paid resources, what must be linked to the project?
Practice this exam
Start a free ACE practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this ACE question test?
Standard ACLs match source addresses.
What is the correct answer to this question?
The correct answer is: An ingress allow rule for port 443 from 0.0.0.0/0 targeting the 'web-server' tag, relying on the implied deny for other traffic — GCP VPCs have an implied deny-all ingress rule at priority 65535. Adding a single ingress allow rule for port 443 from 0.0.0.0/0 targeting the 'web-server' network tag is sufficient — the existing implied deny handles all other traffic. No explicit deny rule is needed.
What should I do if I get this ACE question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related ACE ACL questions on filtering logic and placement.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Discussion
Loading comments…
Sign in to join the discussion.
This ACE practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the ACE exam.