Professional-Cloud-Network-Engineer Practice Tests, Training Professional-Cloud-Network-Engineer Materials

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Google Professional-Cloud-Network-Engineer Exam Syllabus Topics:

SectionObjectives
Topic 1: Implement virtual networks- Load balancing and traffic management
  • 1. Cloud DNS configuration
    • 2. HTTP(S), TCP/SSL load balancing
      - VPC configuration
      • 1. Firewall rules configuration
        • 2. Custom mode VPC setup
          Topic 2: Implement hybrid connectivity- Dedicated and partner interconnect
          • 1. High availability design patterns
            • 2. VLAN attachments and configuration
              - VPN and peering
              • 1. HA VPN setup
                • 2. VPC peering and Shared VPC
                  Topic 3: Manage, monitor, and optimize network operations- Network monitoring and logging
                  • 1. Network Intelligence Center tools
                    • 2. Cloud Monitoring and Logging usage
                      - Security and troubleshooting
                      • 1. Firewall and security policy troubleshooting
                        • 2. Latency and connectivity diagnostics
                          Topic 4: Design and plan a Google Cloud network- VPC design and topology planning
                          • 1. Regional vs global architecture considerations
                            • 2. Subnet design and IP address planning
                              - Hybrid and multi-cloud architecture design
                              • 1. Interconnect and VPN planning
                                • 2. Routing strategy design (BGP)

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                                  Google Cloud Certified - Professional Cloud Network Engineer Sample Questions (Q234-Q239):

                                  NEW QUESTION # 234
                                  You are designing a hybrid cloud environment. Your Google Cloud environment is interconnected with your on-premises network using HA VPN and Cloud Router in a central transit hub VPC. The Cloud Router is configured with the default settings. Your on-premises DNS server is located at 192.168.20.88. You need to ensure that your Compute Engine resources in multiple spoke VPCs can resolve on-premises private hostnames using the domain corp.altostrat.com while also resolving Google Cloud hostnames. You want to follow Google-recommended practices. What should you do?

                                  Answer: C


                                  NEW QUESTION # 235
                                  Your company's logo is published as an image file across multiple websites that are hosted by your company You have implemented Cloud CDN, however, you want to improve the performance of the cache hit ratio associated with this image file. What should you do?

                                  Answer: C

                                  Explanation:
                                  This answer meets the requirement of improving the performance of the cache hit ratio associated with the image file. The reason is:
                                  * Custom cache keys allow you to control which parts of the request URL are used to build the cache key. The cache key is a unique identifier that Cloud CDN uses to store and retrieve cached content1.
                                  * By default, Cloud CDN uses the complete request URL, including the protocol (http or https) and the host (the domain name), to build the cache key. This means that if the same image file is requested from different domains or protocols, Cloud CDN will cache multiple copies of it, which reduces the cache hit ratio1.
                                  * By clearing the Host and Protocol checkboxes, you can tell Cloud CDN to ignore these parts of the request URL when building the cache key. This way, Cloud CDN will cache only one copy of the image file, regardless of which domain or protocol it is requested from, which improves the cache hit ratio1.
                                  Option B is incorrect because configuring Cloud Storage as a custom origin backend does not affect the cache hit ratio. It only affects how Cloud CDN retrieves the content from the origin if it is not cached. Option C is incorrect because configuring versioned URLs for each domain does not improve the cache hit ratio. It actually worsens it, because it creates more variations of the request URL that Cloud CDN has to cache separately. Option D is incorrect because configuring the default TTL as 0 for the image file means that Cloud CDN will not cache it at all, which defeats the purpose of using Cloud CDN.
                                  :
                                  Custom cache keys | Cloud CDN | Google Cloud


                                  NEW QUESTION # 236
                                  You are designing a new network infrastructure for your customer in Google Cloud. Your customer requires a connection between two Google Cloud VPCs that must include a VPN tunnel. You want to follow Google-recommended practices while ensuring maximum availability of the connection. Which VPN configuration should you choose?

                                  Answer: B


                                  NEW QUESTION # 237
                                  Your company's public domain, example.com. is managed using a public Cloud DNS zone. You need to enhance security and protect your users from DNS spoofing and cache poisoning attacks. What should you do?

                                  Answer: B

                                  Explanation:
                                  Enabling DNSSEC on the public Cloud DNS zone signs DNS responses so resolvers can validate authenticity and integrity, protecting against spoofing and cache poisoning. Publishing the DS records at the domain registrar establishes the chain of trust from the parent zone to your signed zone so clients can perform DNSSEC validation end-to-end.


                                  NEW QUESTION # 238
                                  You manage a multi-tenant Google Kubernetes Engine (GKE) cluster where multiple teams deploy applications into a shared namespace.
                                  - One team has deployed a two-tier application with a frontend
                                  deployment and a backend deployment, identified by the labels
                                  app:frontend and app:backend, respectively.
                                  - Another team runs an analytics service, labeled app:analytics, in the same namespace.
                                  You must implement a security rule stating that only Pods from the frontend deployment are allowed to connect to the backend Pods on TCP port 8080. You also must ensure that all other traffic to the backend Pods, including from the analytics pods, must be blocked while minimizing operational overhead.
                                  What should you do?

                                  Answer: B

                                  Explanation:
                                  A NetworkPolicy applied to the Pods labeled app:backend can explicitly allow ingress only on TCP port 8080 from Pods labeled app:frontend. In Kubernetes, once ingress policy selects those backend Pods, all other ingress not explicitly allowed is denied by default, so traffic from the analytics Pods and any other sources is blocked with minimal operational overhead.
                                  Reference:
                                  https://docs.cloud.google.com/kubernetes-engine/docs/tutorials/network-policy


                                  NEW QUESTION # 239
                                  ......

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