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Implementing hybrid interconnectivity practice questions

Practise Google Professional Cloud Network Engineer Implementing hybrid interconnectivity practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.

Courseiva uses original exam-style practice questions designed for learning and revision. The goal is to understand the concepts, recognise exam patterns, and improve through explanations — not memorise copied exam dumps.

Reviewed byJohnson Ajibi· MSc IT Security
20 questionsDomain: Implementing hybrid interconnectivity
Practice 10 questionsBrowse domain →

What the exam tests

What to know about Implementing hybrid interconnectivity

Implementing hybrid interconnectivity questions test whether you can apply the concept in context, not just recognise a definition.

How the topic appears in realistic exam-style scenarios.

Which detail in the question changes the correct answer.

How to eliminate plausible but wrong options.

How to connect the question back to the wider exam objective.

Watch out for

Common Implementing hybrid interconnectivity exam traps

  • ▸Answering from memory before reading the full scenario.
  • ▸Missing a constraint such as cost, availability, security, scope or command context.
  • ▸Choosing a broad answer when the question asks for the most specific fix.
  • ▸Ignoring why the wrong options are tempting.

Practice set

Implementing hybrid interconnectivity questions

20 questions · select your answer, then reveal the explanation

Question 1easymultiple choice
Read the full Implementing hybrid interconnectivity explanation →

A company is deploying a Dedicated Interconnect with a 10 Gbps circuit to Google Cloud. They need to ensure high availability. Which configuration is required by Google Cloud to meet the high availability SLA?

Question 2mediummultiple choice
Open the full BGP breakdown →

A company has a Hybrid Connectivity setup using Cloud VPN with dynamic routing (BGP). They notice that traffic from their on-premises network to Google Cloud is intermittently dropping. The on-premises BGP speaker is sending routes with a higher local preference (200) than the Google Cloud router (default 100). What is the most likely cause of the intermittent drops?

Question 3hardmultiple choice
Read the full NAT/PAT explanation →

A multinational corporation is connecting five on-premises data centers to Google Cloud using Cloud Interconnect. Each data center has a dedicated 10 Gbps connection. They want to ensure that if one Interconnect fails, traffic is automatically redistributed across the remaining connections without manual intervention. Which solution meets this requirement?

Question 4easymultiple choice
Read the full Implementing hybrid interconnectivity explanation →

An organization wants to migrate legacy on-premises applications to Google Cloud but must maintain low-latency connectivity for real-time data synchronization. The on-premises data center is in a colocation facility that is not directly served by Google Cloud. Which hybrid connectivity option is most cost-effective while meeting the latency requirement?

Question 5mediummultiple choice
Open the full BGP breakdown →

A company is using Cloud VPN with BGP to connect their on-premises network to Google Cloud. They have two VPN tunnels from two different on-premises VPN gateways to a single Cloud VPN gateway. They notice that during maintenance on one on-premises gateway, traffic fails over to the other tunnel, but after the maintenance, traffic does not fail back. What is the most likely cause?

Question 6hardmultiple choice
Read the full Implementing hybrid interconnectivity explanation →

A financial services company is required to encrypt all data in transit between their on-premises data center and Google Cloud. They have a Dedicated Interconnect connection. They want to meet the encryption requirement while minimizing overhead and complexity. Which solution should they implement?

Question 7easymultiple choice
Read the full VPN explanation →

A company wants to connect their VPC to an on-premises network using Cloud VPN. They need to ensure that traffic from Google Cloud to on-premises uses a specific route only when the primary path is available, and otherwise fails over to a backup path. Which configuration should they use?

Question 8mediummultiple choice
Open the full VLAN trunking answer →

An enterprise is using a 10 Gbps Dedicated Interconnect between their on-premises data center and Google Cloud. They measure throughput and find it is only 5 Gbps even though there is no congestion. The on-premises router is configured with a single VLAN attachment. What is the most likely cause?

Question 9mediummulti select
Read the full Implementing hybrid interconnectivity explanation →

A company is planning to connect multiple VPCs in different regions to their on-premises network using a single Dedicated Interconnect. Which TWO configurations are required to achieve this?

Question 10hardmulti select
Open the full BGP breakdown →

A company has a Hybrid Connectivity setup using Cloud VPN with BGP. They want to migrate to Dedicated Interconnect for better performance. During the migration, they need to avoid downtime. Which THREE steps should they take?

Question 11easymulti select
Open the full VLAN trunking answer →

A company is troubleshooting connectivity issues between their on-premises network and Google Cloud over a Dedicated Interconnect. They can ping the VLAN attachment IP but cannot reach Compute Engine instances. Which TWO checks should they perform?

Question 12mediummulti select
Open the full VLAN trunking answer →

A company is using Cloud Interconnect with multiple VLAN attachments. They want to implement traffic shaping to prioritize real-time traffic over bulk transfers. Which THREE actions should they take?

Question 13hardmultiple choice
Open the full BGP breakdown →

Refer to the exhibit. The Cloud Router shows one BGP peer as ESTABLISHED and one as IDLE. The best routes show two routes to the same destination with different priorities. What is the most likely reason the IDLE peer is not establishing?

Exhibit

Refer to the exhibit.

```
$ gcloud compute routers get-status router-1 --region=us-central1
kind: compute#routerStatus
result:
  bgpPeerStatus:
  - name: peer-1
    ipAddress: 169.254.1.1
    peerIpAddress: 169.254.1.2
    status: ESTABLISHED
    routesLearned: 120
  - name: peer-2
    ipAddress: 169.254.2.1
    peerIpAddress: 169.254.2.2
    status: IDLE
    routesLearned: 0
  bestRoutesForRouter:
  - dest: 10.0.0.0/8
    nextHop: 169.254.1.2
    priority: 100
  - dest: 10.0.0.0/8
    nextHop: 169.254.2.2
    priority: 200
```
Question 14hardmultiple choice
Open the full BGP breakdown →

A large e-commerce company has a hybrid cloud setup with a Dedicated Interconnect between their on-premises data center in Dallas and Google Cloud us-central1 region. They have a single VLAN attachment with a Cloud Router that uses BGP to exchange routes. The on-premises network uses 10.0.0.0/8, and Google Cloud VPC uses 172.16.0.0/16. They recently deployed a new application in us-west1 that uses IP range 172.17.0.0/16. They created a VPC peering between the us-central1 VPC and the us-west1 VPC. On-premises users can reach the us-central1 workloads but cannot reach the us-west1 application. There are no firewall rules blocking traffic. The on-premises router has a default route pointing to the Interconnect. What is the most likely cause of the issue?

Question 15mediummultiple choice
Open the full VLAN trunking answer →

A company needs to connect their on-premises data center to Google Cloud using Dedicated Interconnect. They have a service level agreement that requires 99.99% availability for the connection. What is the minimum number of VLAN attachments they must provision, and how should they be configured to meet this SLA?

Question 16hardmultiple choice
Open the full BGP breakdown →

An organization is using Cloud VPN with dynamic routing (BGP) to connect their on-premises network to Google Cloud. They notice that traffic from Google Cloud to on-premises is not using the VPN tunnel but instead going through the internet. They have verified that the VPN tunnel is up and BGP sessions are established. Which configuration issue is most likely causing this behavior?

Question 17easymultiple choice
Read the full Implementing hybrid interconnectivity explanation →

A company wants to migrate a legacy application to Google Cloud that requires low-latency communication with on-premises databases. The application is latency-sensitive and must use private IP addresses only. Which hybrid connectivity solution should they choose?

Question 18mediummultiple choice
Read the full Implementing hybrid interconnectivity explanation →

An organization has multiple VPCs in Google Cloud that need to communicate with an on-premises network through a single Dedicated Interconnect. All VPCs are in the same project. What is the most efficient way to enable connectivity from all VPCs to on-premises?

Question 19mediummultiple choice
Open the full BGP breakdown →

A network engineer is troubleshooting a Cloud VPN tunnel that is not passing traffic. The tunnel status shows as established, and BGP sessions are up. However, traffic from an on-premises subnet (10.0.1.0/24) to a GCP subnet (192.168.1.0/24) is not working. What should the engineer check first?

Question 20hardmultiple choice
Open the full BGP breakdown →

A network engineer is troubleshooting connectivity between an on-premises network and Google Cloud. The on-premises router has two BGP sessions configured for redundancy with a Cloud Router. The engineer runs the command above. Which issue does the output indicate?

Exhibit

Refer to the exhibit.

```
$ gcloud compute routers get-status my-router --region=us-central1
kind: compute#routerStatusResponse
result:
  router: my-router
  bgpPeerStatus:
  - name: peer-a
    ipAddress: 169.254.1.1
    peerIpAddress: 169.254.1.2
    status: UP
    numUp: 1
    numLearned: 0
    advertisedRoutes:
    - 10.0.0.0/8
    learnedRoutes: []
  - name: peer-b
    ipAddress: 169.254.2.1
    peerIpAddress: 169.254.2.2
    status: DOWN
    numUp: 0
    numLearned: 0
    advertisedRoutes: []
    learnedRoutes: []
```
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Frequently asked questions

What does the PCNE exam test about Implementing hybrid interconnectivity?
Implementing hybrid interconnectivity questions test whether you can apply the concept in context, not just recognise a definition.
How should I use these practice questions?
Select your answer before revealing the explanation. Then read why each option is right or wrong — this active recall approach builds retention far faster than re-reading notes.
Can I practise just Implementing hybrid interconnectivity questions in a focused session?
Yes — the session launcher on this page draws every question from the Implementing hybrid interconnectivity domain. Use a 10-question session first to gauge your baseline, then move to 20 or 30 once the weak spots are clear.
Where can I practise other PCNE topics?
Use the topic links above to move to related areas, or go back to the PCNE question bank to see all topics.
Are these real exam questions or dumps?
These are original practice questions written to test the same concepts the PCNE exam covers. They are not copied from any real exam or dump site.