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ACE Practice Question: A GCP project needs to allow outbound internet…
This ACE practice question tests your understanding of a gcp project needs to allow outbound internet…. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 GCP project needs to allow outbound internet access from VMs that have only private IP addresses, without exposing those VMs to inbound internet traffic. Which GCP service provides 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
Best answer
Cloud NAT configured on the VPC's Cloud Router
Cloud NAT provides outbound internet connectivity for VMs with private IPs through NAT translation, while keeping them unreachable from inbound internet traffic.
B
Distractor review
An internal load balancer with internet routing enabled
Internal load balancers route traffic within a VPC — they don't provide NAT or internet access for private VMs.
C
Distractor review
Cloud VPN connecting the VPC to the internet
Cloud VPN connects a GCP VPC to an on-premises network or another VPC — it's not used for providing internet access to private VMs.
D
Distractor review
A VPC firewall rule allowing egress to 0.0.0.0/0 on all ports
A firewall egress rule allows outbound traffic, but VMs with only private IPs still can't reach the internet without a NAT gateway — routing is the issue, not firewall rules alone.
Common exam trap
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Technical deep dive
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
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.
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Question 3
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Question 4
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Question 5
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Question 6
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FAQ
Questions learners often ask
What does this ACE question test?
CIDR notation defines the prefix length.
What is the correct answer to this question?
The correct answer is: Cloud NAT configured on the VPC's Cloud Router — Cloud NAT (Network Address Translation) allows VMs with private IPs to initiate outbound connections to the internet while remaining unreachable from the internet directly. It works at the VPC subnet level and doesn't require VMs to have external IPs.
What should I do if I get this ACE question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related ACE subnetting questions on CIDR, address ranges, and subnet selection.
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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.