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

Section	Weight	Objectives
Topic 1: Configuring hybrid and multi-cloud connectivity	14%	- Cloud Interconnect 1. Dedicated, Partner Interconnect, VLAN attachments - Cloud VPN 1. Site-to-site, HA VPN, policy-based/route-based - Cloud Router 1. BGP configuration, route advertisement
Topic 2: Managing, monitoring, and troubleshooting network operations	12%	- Troubleshooting connectivity 1. Load balancer and packet loss diagnosis 2. VPN/Interconnect issues, BGP errors - Monitoring and logging 1. Network Intelligence Center 2. VPC Flow Logs, Firewall Insights 3. Cloud Logging, Cloud Monitoring
Topic 3: Configuring managed network services	16%	- Cloud NAT 1. Address allocation, port management - Cloud CDN 1. Caching rules, origin configuration - Cloud DNS 1. DNSSEC, logging 2. Public/private zones, forwarding, peering - Load balancing 1. Backend services, NEGs, health checks 2. Internal/external, regional/global types
Topic 4: Implementing a VPC network	20%	- VPC connectivity 1. VPC Peering, Shared VPC setup 2. Dynamic and static routing - Hierarchical firewalls and security policies 1. Cloud Next Generation Firewall - Network Connectivity Center 1. Spoke and hub configuration - Configuring VPC resources 1. Private Google Access, service accounts 2. Networks, subnets, firewall rules/policies
Topic 5: Configuring cloud network security solutions	12%	- Secure Web Proxy 1. URL filtering, access control - VPC Service Controls 1. Service perimeters, access levels - Cloud Armor 1. Security policies, WAF rules, DDoS protection
Topic 6: Designing and planning a Google Cloud VPC network	26%	- Designing for GKE networking 1. Alias IP ranges, private control plane - Designing VPC networks 1. IP address management 2. Standalone vs Shared VPC 3. Private Service Access / Private Service Connect 4. Subnet design and CIDR planning - Designing hybrid and multi-cloud networks 1. Cloud Interconnect / Cloud VPN architecture 2. Cloud Router and BGP design - Designing overall network architecture 1. High availability, disaster recovery, scalability 2. DNS topology design 3. Network tiers (Premium/Standard)

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Google Cloud Certified - Professional Cloud Network Engineer Sample Questions (Q286-Q291):

NEW QUESTION # 286
You have the following firewall ruleset applied to all instances in your Virtual Private Cloud (VPC):

You need to update the firewall rule to add the following rule to the ruleset:

You are using a new user account. You must assign the appropriate identity and Access Management (IAM) user roles to this new user account before updating the firewall rule. The new user account must be able to apply the update and view firewall logs. What should you do?

A. Assign the compute.orgSecurityPolicyAdmin and logging.bucketWriter role to the new user account. Apply the new firewall rule with a priority of 150.
B. Assign the compute.securityAdmin and logging.viewer rule to the new user account. Apply the new firewall rule with a priority of 50.
C. Assign the compute.securityAdmin and logging.bucketWriter role to the new user account. Apply the new firewall rule with a priority of 150.
D. Assign the compute.orgSecurityPolicyAdmin and logging.viewer role to the new user account. Apply the new firewall rule with a priority of 50.

Answer: B

NEW QUESTION # 287
You need to restrict access to your Google Cloud load-balanced application so that only specific IP addresses can connect.
What should you do?

A. Label the backend instances "application," and create a firewall rule with the target label "application" and the source IP range of the allowed clients and Google health check IP ranges.
B. Create a secure perimeter using the Access Context Manager feature of VPC Service Controls and restrict access to the source IP range of the allowed clients and Google health check IP ranges.
C. Create a secure perimeter using VPC Service Controls, and mark the load balancer as a service restricted to the source IP range of the allowed clients and Google health check IP ranges.
D. Tag the backend instances "application," and create a firewall rule with target tag "application" and the source IP range of the allowed clients and Google health check IP ranges.

Answer: D

Explanation:
https://cloud.google.com/load-balancing/docs/https/setting-up-https#sendtraffic

NEW QUESTION # 288
You have an application running on Compute Engine that uses BigQuery to generate some results that are stored in Cloud Storage. You want to ensure that none of the application instances have external IP addresses.
Which two methods can you use to accomplish this? (Choose two.)

A. Create a Cloud NAT, and route the application traffic via NAT gateway.
B. Enable Private Services Access on the VPC.
C. Create network peering between your VPC and BigQuery.
D. Enable Private Google Access on the VPC.
E. Enable Private Google Access on all the subnets.

Answer: A,E

Explanation:
Private Google Access interaction
https://cloud.google.com/nat/docs/overview#interaction-pga
Specifications
https://cloud.google.com/vpc/docs/configure-private-google-access#specifications

NEW QUESTION # 289
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?

A. Configure the default time to live (TTL) as 0 for the image file.
B. Configure Cloud Storage as a custom origin backend to host the image file, and select multi- region as the location type.
C. Configure custom cache keys for the backend service that holds the image file, and clear the Host and Protocol checkboxes.
D. Configure versioned URLs for each domain to serve users the image file before the cache entry expires.

Answer: C

Explanation:
https://cloud.google.com/cdn/docs/best-practices#cache-hit-ratio

NEW QUESTION # 290
You have two VPCs: VPC A in Project A and VPC B in Project B. The VPCs are peered, and each VPC has VM instances in four zones. You are using the Network Intelligence Center Performance Dashboard to investigate the packet loss for traffic flows that start in VPC A and terminate in VPC B. You need the reported packet loss metric to have at least a 90% confidence level. What should you do?

A. Ensure that each zone in each of the VPC networks has at least 9 compute instances. Look in Project B for the reported metric.
B. Ensure that each zone in each of the VPC networks has at least 10 compute instances. Look in Project A for the reported metric.
C. Ensure that each zone in each of the VPC networks has at least 10 compute instances. Look in Project B for the reported metric.
D. Ensure that each zone in each of the VPC networks has at least 9 compute instances. Look in Project A for the reported metric.

Answer: A

Explanation:
The metrics for the collector destination provides an aggregate view of all mirrored traffic that it collects. However, for the individual mirrored instances, you can view the number of mirrored packets that were dropped. Metrics for the collector destination don't include dropped packets.
https://cloud.google.com/vpc/docs/monitoring-packet-mirroring

NEW QUESTION # 291
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