View Full Google Professional Cloud Network Engineer Exam Dumps and Practice Test Dumps

 

Question 141

What is the main purpose of VPC Network Peering?

1. Connect two VPC networks privately
2. Encrypt individual application requests
3. Replace all subnet routes
4. Provide public DNS hosting

Correct Answer: 1

Explanation:

VPC Network Peering enables private connectivity between supported VPC networks using internal IP addresses. Peered networks can exchange traffic without requiring public IP addresses or external VPN tunnels. This can be useful when separate projects or organizations need private communication between workloads while maintaining their individual network configurations. Peering does not encrypt application traffic by itself, replace subnet routes entirely, or provide public DNS hosting. Engineers should also remember that VPC Network Peering is not transitive, meaning a network does not automatically gain access to another network simply because both are connected to a common peer.

Question 142

Which route takes precedence when multiple routes match a destination?

1. Route with the oldest creation time
2. Route with the most specific destination prefix
3. Route with the largest next-hop address
4. Route associated with the newest subnet

Correct Answer: 2

Explanation:

Google Cloud routing uses destination-prefix specificity as an important factor when multiple routes match the same destination. A route with a more specific prefix can take precedence over a broader route. For example, a route targeting a smaller subnet range can be selected instead of a route covering a much larger address block. Creation time, next-hop address size, and subnet age do not determine route specificity. After applicable routes are identified, additional route-selection rules can influence the final choice. Understanding longest-prefix matching is fundamental when troubleshooting unexpected traffic paths within VPC and hybrid network architectures.

Question 143

What does Private Google Access allow eligible resources to do?

1. Receive automatic external IP addresses
2. Bypass all firewall policies
3. Reach supported Google APIs without external IP addresses
4. Establish BGP sessions with Google services

Correct Answer: 3

Explanation:

Private Google Access allows eligible resources that do not have external IP addresses to access supported Google APIs and services using private connectivity mechanisms. This is useful for workloads that should remain without directly assigned external addresses while still requiring access to Google-managed services. Private Google Access does not automatically assign external addresses or bypass VPC firewall controls. It also does not establish BGP sessions with Google APIs. Administrators must enable the feature appropriately for the relevant subnet and understand which destinations and service access patterns are supported by the configured networking architecture.

Question 144

Which resource identifies a backend service’s traffic distribution configuration?

1. Forwarding rule
2. Backend service
3. DNS policy
4. Route advertisement

Correct Answer: 2

Explanation:

A backend service defines important characteristics for distributing traffic among supported backends in Google Cloud load-balancing architectures. It can contain configuration related to backends, health checks, balancing behavior, and other traffic-management settings depending on the load balancer type. A forwarding rule directs traffic toward the appropriate load-balancing frontend, but it does not itself represent the complete backend distribution configuration. DNS policies handle name resolution, while route advertisements concern routing information. Understanding the relationship between forwarding rules, target proxies where applicable, backend services, and backends is essential when designing and troubleshooting Google Cloud load balancers.

Question 145

What is the purpose of a Cloud DNS forwarding zone?

1. Send matching DNS queries to designated resolvers
2. Allocate private subnet addresses
3. Advertise BGP prefixes
4. Translate outbound application traffic

Correct Answer: 1

Explanation:

A Cloud DNS forwarding zone allows matching DNS queries to be forwarded to designated DNS resolvers. This is useful in hybrid environments where Google Cloud workloads need to resolve names hosted by on-premises or other external DNS infrastructure. The forwarding mechanism concerns DNS resolution rather than IP address allocation, BGP routing, or NAT translation. Engineers can use forwarding configurations to integrate cloud and enterprise naming systems while maintaining appropriate DNS authority boundaries. Correct resolver reachability and firewall configuration are also important because the DNS query must be able to reach the configured forwarding target.

Question 146

Which component determines where load-balancer frontend traffic is received?

1. Health check
2. Backend instance group
3. Forwarding rule
4. Cloud Router

Correct Answer: 3

Explanation:

A forwarding rule defines how incoming traffic is directed to the appropriate Google Cloud load-balancing frontend configuration. Depending on the load balancer type, it can specify information such as an IP address, protocol, port or port range, and the target resource that receives the traffic. Health checks determine backend health rather than frontend reception. Backend instance groups contain workloads, while Cloud Router provides dynamic routing functions. Understanding forwarding rules is important because they form a key part of the traffic-entry path into Google Cloud load-balancing architectures.

Question 147

What does a Cloud Armor security policy primarily evaluate?

1. DNS zone ownership
2. Network route advertisements
3. NAT translation capacity
4. Incoming application requests

Correct Answer: 4

Explanation:

Cloud Armor security policies evaluate incoming traffic for supported Google Cloud applications and load-balancing architectures. Policies can use configured rules to allow, deny, rate-limit, or otherwise manage requests based on supported attributes. This makes Cloud Armor useful for protecting internet-facing applications from unwanted or abusive traffic. DNS zone ownership, route advertisements, and NAT translation capacity are controlled by separate services. Engineers designing Cloud Armor protections should consider legitimate traffic patterns, application requirements, security conditions, and the position of the protected service within the overall load-balancing architecture.

Question 148

Which feature can collect copies of network packets for analysis?

1. Packet Mirroring
2. Cloud NAT
3. Cloud DNS
4. Cloud Router

Correct Answer: 1

Explanation:

Packet Mirroring can provide copies of network traffic for inspection and analysis by supported monitoring or security appliances. Unlike flow logging, which records summarized flow information, packet mirroring can provide packet-level visibility for appropriate troubleshooting and security use cases. Cloud NAT performs address translation, Cloud DNS handles name resolution, and Cloud Router exchanges routes using BGP. Packet mirroring should be designed carefully because mirrored traffic can create additional processing and bandwidth considerations. Engineers should select appropriate sources and collectors based on the monitoring requirements and architecture.

Question 149

What is a key benefit of hierarchical firewall policies?

1. They automatically assign IP addresses
2. They provide centralized firewall controls across resources
3. They replace Cloud Router
4. They create DNS records automatically

Correct Answer: 2

Explanation:

Hierarchical firewall policies allow organizations to apply centralized firewall controls at supported higher levels of the Google Cloud resource hierarchy. This can help establish consistent security requirements across multiple projects and networks instead of configuring every rule independently. Hierarchical policies do not allocate IP addresses, replace Cloud Router, or automatically create DNS records. Their centralized nature is particularly useful for organizations with many projects that need common security controls. Engineers should understand how hierarchical policies interact with other applicable firewall rules when designing an effective traffic-control strategy.

Question 150

What does Cloud NAT primarily provide for private workloads?

1. Inbound public load balancing
2. Private DNS resolution
3. Outbound address translation
4. Dynamic BGP routing

Correct Answer: 3

Explanation:

Cloud NAT provides network address translation for eligible outbound connections from resources that use private IP addresses. It allows workloads to initiate supported connections to external destinations without requiring each workload to have its own external IP address. Cloud NAT does not provide inbound public load balancing, private DNS resolution, or dynamic BGP routing. Those functions are handled by other Google Cloud services. When configuring Cloud NAT, engineers should consider the applicable subnets, source ranges, external destinations, NAT IP allocation, port capacity, and logging requirements.

Question 151

What does a Shared VPC primarily allow an organization to do?

1. Centralize network resources for multiple service projects
2. Replace all IAM permissions
3. Create automatic public IP addresses
4. Eliminate subnet planning

Correct Answer: 1

Explanation:

Shared VPC allows an organization to centrally manage network resources in a host project while allowing workloads in attached service projects to use those shared network resources. This model supports centralized network administration while separating application or service ownership across projects. Shared VPC does not eliminate IAM requirements, automatically assign public IP addresses, or remove the need for subnet planning. Proper permissions are required so that authorized users and services can deploy resources into shared subnets. This architecture is particularly useful for organizations that want consistent networking while maintaining project-level separation for applications.

Question 152

Which connectivity model uses a central hub with connected spokes?

1. VPC firewall hierarchy
2. Network Connectivity Center
3. Cloud DNS forwarding
4. Cloud NAT

Correct Answer: 2

Explanation:

Network Connectivity Center uses a hub-and-spoke model to organize supported network connectivity. The central hub provides the framework, while supported connectivity resources are represented through spokes. This approach can simplify connectivity management across multiple networks and supported hybrid environments. VPC firewall hierarchy is concerned with security policy enforcement, Cloud DNS forwarding handles DNS queries, and Cloud NAT performs address translation. NCC is therefore particularly relevant when an organization wants a centralized connectivity architecture instead of independently managing numerous point-to-point connections.

Question 153

Which configuration is commonly used to exchange routes dynamically over HA VPN?

1. Static DNS records
2. Cloud CDN
3. Cloud Router with BGP
4. Cloud Armor

Correct Answer: 3

Explanation:

Cloud Router with BGP can provide dynamic route exchange over HA VPN. Instead of manually maintaining every route, BGP allows the connected networks to advertise and learn reachable prefixes dynamically. This can simplify hybrid network administration and support route changes when network topology evolves. Static DNS records provide name resolution, Cloud CDN caches content, and Cloud Armor provides application security controls. When using dynamic routing with HA VPN, engineers should understand the BGP configuration on both sides and ensure that the advertised prefixes and routing policies match the intended connectivity design.

Question 154

What is the purpose of a health check in load balancing?

1. Determine whether a backend can receive traffic
2. Assign a subnet CIDR range
3. Establish a DNS forwarding path
4. Allocate Cloud NAT addresses

Correct Answer: 1

Explanation:

A load-balancer health check determines whether a backend is healthy enough to receive traffic. The load-balancing system uses the health-check results to make backend selection decisions according to the behavior of the particular load-balancing service. Health checks do not assign subnet CIDR ranges, establish DNS forwarding paths, or allocate NAT addresses. Correct health-check configuration is important because an incorrectly configured probe can cause healthy applications to appear unavailable or unhealthy instances to continue receiving traffic. Engineers should verify the protocol, port, path where applicable, and network accessibility required by the selected health-check design.

Question 155

What does VPC Flow Logs primarily provide?

1. DNS zone replication
2. Route encryption
3. Traffic flow visibility
4. NAT address reservation

Correct Answer: 3

Explanation:

VPC Flow Logs provide visibility into network traffic flows associated with supported VPC resources. The logs can help engineers understand communication patterns, investigate connectivity problems, analyze traffic behavior, and support security investigations. Flow Logs do not replicate DNS zones, encrypt routes, or reserve NAT addresses. The records contain information about observed traffic rather than the complete contents of network packets. Engineers can use flow-log configuration and metadata options to obtain useful visibility while managing logging volume. Flow Logs are therefore an important troubleshooting and monitoring capability in Google Cloud network environments.

Question 156

Which service provides managed content caching closer to users?

1. Cloud Router
2. Cloud CDN
3. Cloud NAT
4. Cloud DNS

Correct Answer: 2

Explanation:

Cloud CDN provides managed content caching through Google’s distributed edge infrastructure. By caching eligible content closer to users, Cloud CDN can reduce latency and decrease repeated requests to application backends. Cloud Router manages dynamic routing, Cloud NAT performs address translation, and Cloud DNS handles DNS resolution. Cloud CDN is commonly integrated with supported Google Cloud load-balancing architectures. Engineers should consider cacheability, cache-control behavior, backend configuration, and application requirements when determining which content should be served through the CDN.

Question 157

What does a VPC subnet primarily define?

1. A regional IP address range
2. A global BGP peer
3. A DNS forwarding resolver
4. A Cloud Armor rule

Correct Answer: 1

Explanation:

A VPC subnet defines an IP address range within a Google Cloud region. Resources that use the subnet obtain addresses from its configured ranges according to the relevant network configuration. Subnets are therefore fundamental components of VPC address planning and regional resource placement. A subnet does not define a BGP peer, DNS forwarding resolver, or Cloud Armor rule. Engineers should carefully plan subnet ranges to prevent overlap and leave adequate space for current workloads and future expansion. Proper subnet design also supports effective routing, firewall targeting, and hybrid connectivity planning.

Question 158

What is a major advantage of Private Service Connect for service consumers?

1. It requires every service to expose a public IP
2. It removes all DNS configuration
3. It enables private access to published services
4. It replaces every VPC route

Correct Answer: 3

Explanation:

Private Service Connect allows consumers to access supported published services using private connectivity. This can avoid exposing the service directly through a public IP address and can provide a more controlled service-consumption model. Private Service Connect does not eliminate all DNS configuration, remove every VPC route, or require public exposure of the published service. The exact consumer configuration depends on the type of service being accessed. Engineers should distinguish between the consumer-side endpoint or connection mechanism and the producer-side service attachment when designing Private Service Connect solutions.

Question 159

Which routing approach can automatically learn routes from a connected network?

1. Static route configuration
2. BGP dynamic routing
3. DNS zone delegation
4. NAT port mapping

Correct Answer: 2

Explanation:

BGP dynamic routing allows a Google Cloud network to learn advertised routes from a connected network through a Cloud Router BGP session. This can reduce the need to manually configure every route and allows routing information to adapt as network prefixes change. Static routes require explicit configuration and do not automatically learn changing prefixes. DNS delegation concerns name resolution, while NAT port mapping concerns address translation. Dynamic routing is especially valuable in hybrid architectures where multiple prefixes or changing network paths must be exchanged reliably between Google Cloud and external networks.

Question 160

Which design principle helps avoid IP conflicts between connected networks?

1. Reusing identical CIDR ranges
2. Assigning overlapping subnet prefixes
3. Using undocumented address allocations
4. Planning non-overlapping CIDR ranges

Correct Answer: 4

Explanation:

Using non-overlapping CIDR ranges is a fundamental principle for avoiding IP conflicts between connected networks. When networks such as VPCs, on-premises environments, or other connected systems use overlapping address ranges, routing and connectivity can become difficult or impossible for affected destinations. A documented IP address management strategy helps prevent accidental reuse and provides visibility into current and planned allocations. Reusing identical or overlapping prefixes should therefore be avoided when networks need to communicate. Careful address planning should account for present workloads, future expansion, hybrid connectivity, and organizational network boundaries.