Professional-Cloud-Network-Engineer Schulungsunterlagen - Professional-Cloud-Network-Engineer Prüfungsfragen

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

Section	Objectives
Manage, monitor, and optimize network operations	- Monitor and troubleshoot network infrastructure 1. Analyze latency and traffic flow 2. Monitor logs and metrics 3. Optimize network cost and performance 4. Troubleshoot connectivity issues
Configure network services	- Deploy and manage Google Cloud network services 1. Configure Cloud CDN 2. Configure Cloud DNS 3. Configure load balancing 4. Enable additional networking services
Design, plan, and prototype a Google Cloud network	- Design overall network architecture 1. Design Virtual Private Cloud (VPC) networks 2. Design IP addressing plans for Google Kubernetes Engine 3. Design hybrid network connectivity 4. Plan secure and scalable network topologies
Implement hybrid interconnectivity	- Implement hybrid networking solutions 1. Configure Cloud Router and dynamic routing 2. Implement site-to-site connectivity 3. Configure Cloud Interconnect 4. Configure Cloud VPN
Implement network security	- Secure Google Cloud network environments 1. Configure Identity and Access Management 2. Configure third-party network security appliances 3. Implement secure SSH access 4. Configure Cloud Armor policies
Implement Virtual Private Cloud (VPC) instances	- Configure and manage VPC networks 1. Implement Shared VPC 2. Manage GKE networking 3. Configure subnets and routes 4. Configure firewall rules

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Google Professional-Cloud-Network-Engineer Prüfungsfragen, Professional-Cloud-Network-Engineer Fragen Antworten

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Google Cloud Certified - Professional Cloud Network Engineer Professional-Cloud-Network-Engineer Prüfungsfragen mit Lösungen (Q131-Q136):

131. Frage
You have deployed a proof-of-concept application by manually placing instances in a single Compute Engine zone. You are now moving the application to production, so you need to increase your application availability and ensure it can autoscale.
How should you provision your instances?

A. Create a managed instance group for each region, select Single zone for the location, and manually distribute instances across the zones in that region.
B. Create an unmanaged instance group for each zone, and manually distribute the instances across the desired zones.
C. Create a single managed instance group, specify the desired region, and select Multiple zones for the location.
D. Create an unmanaged instance group in a single zone, and then create an HTTP load balancer for the instance group.

Antwort: A

Begründung:
https://cloud.google.com/compute/docs/instance-groups/rolling-out-updates-to-managed- instance-groups

132. Frage
You are designing the network architecture for your organization. Your organization has three developer teams: Web, App, and Database. All of the developer teams require access to Compute Engine instances to perform their critical tasks. You are part of a small network and security team that needs to provide network access to the developers. You need to maintain centralized control over network resources, including subnets, routes, and firewalls. You want to minimize operational overhead. How should you design this topology?

A. Configure a host project with a Shared VPC. Create service projects for Web, App, and Database.
B. Configure one VPC for Web, one VPC for App, and one VPC for Database. Configure HA VPN between each VPC.
C. Configure one VPC for Web, one VPC for App, and one VPC for Database. Use VPC Network Peering to connect all VPCs in a full mesh.
D. Configure three Shared VPC host projects, each with a service project: one for Web, one for App, and one for Database.

Antwort: A

133. Frage
You need to enable Private Google Access for use by some subnets within your Virtual Private Cloud (VPC).
Your security team set up the VPC to send all internet-bound traffic back to the on- premises data center for inspection before egressing to the internet, and is also implementing VPC Service Controls in the environment for API-level security control. You have already enabled the subnets for Private Google Access. What configuration changes should you make to enable Private Google Access while adhering to your security team' s requirements?

A. Create a private DNS zone with a CNAME record for *.googleapis.com to private.googleapis.com, with an A record pointing to Google's private API address range.
Create a custom route that points Google's private API address range to the default internet gateway as the next hop.
B. Create a private DNS zone with a CNAME record for *.googleapis.com to restricted.googleapis.com, with an A record pointing to Google's restricted API address range.
Change the custom route that points the default route (0/0) to the default internet gateway as the next hop.
C. Create a private DNS zone with a CNAME record for *.googleapis.com to restricted.googleapis.com, with an A record pointing to Google's restricted API address range.
Create a custom route that points Google's restricted API address range to the default internet gateway as the next hop.
D. Create a private DNS zone with a CNAME record for *.googleapis.com to private.googleapis.com, with an A record painting to Google's private AP address range.
Change the custom route that points the default route (0/0) to the default internet gateway as the next hop.

Antwort: D

134. Frage
Your company has just launched a new critical revenue-generating web application. You deployed the application for scalability using managed instance groups, autoscaling, and a network load balancer as frontend. One day, you notice severe bursty traffic that the caused autoscaling to reach the maximum number of instances, and users of your application cannot complete transactions. After an investigation, you think it as a DDOS attack. You want to quickly restore user access to your application and allow successful transactions while minimizing cost.
Which two steps should you take? (Choose two.)

A. SSH into the backend compute engine instances, and view the auth logs and syslogs to further understand the nature of the attack.
B. Create a global HTTP(s) load balancer and move your application backend to this load balancer.
C. Use Cloud Armor to blacklist the attacker's IP addresses.
D. Shut down the entire application in GCP for a few hours. The attack will stop when the application is offline.
E. Increase the maximum autoscaling backend to accommodate the severe bursty traffic.

Antwort: A,E

Begründung:
It says "You want to quickly restore user access to your application and allow successful transactions while minimizing cost." if you want to quickly restore access you need temp increase in auto scale while your figuring out the cause of the sudden burst of traffic.

135. Frage
You are troubleshooting an application in your organization's Google Cloud network that is not functioning as expected. You suspect that packets are getting lost somewhere. The application sends packets intermittently at a low volume from a Compute Engine VM to a destination on your on-premises network through a pair of Cloud Interconnect VLAN attachments. You validated that the Cloud Next Generation Firewall (Cloud NGFW) rules do not have any deny statements blocking egress traffic, and you do not have any explicit allow rules. Following Google-recommended practices, you need to analyze the flow to see if packets are being sent correctly out of the VM to isolate the issue. What should you do?

A. Enable VPC Flow Logs on the subnet that the VM is deployed in with sample_rate = 1.0, and run a query in Logs Explorer to analyze the packet flow.
B. Create a packet mirroring policy that is configured with your VM as the source and destined to a collector. Analyze the packet captures.
C. Verify the network/attachment/egress_dropped_packet.s_count Cloud Interconnect VLAN attachment metric.
D. Enable Firewall Rules Logging on your firewall rules and review the logs.

Antwort: A

Begründung:
Enabling VPC Flow Logs with sample_rate = 1.0 on the VM's subnet will give detailed information about network traffic flowing to and from your VM. You can then query this data in Logs Explorer to check whether packets are leaving the VM and reaching the intended destination. This is a recommended practice for troubleshooting such network issues.

136. Frage
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