NSE6_WCS-7.0 Sample Questions Answers

Understanding Gateway Load Balancer (GWLB):

GWLB is designed to distribute traffic across multiple appliances for both inbound and outbound traffic, providing scalability and high availability.

Traffic Load Balancing:

GWLB can send traffic to multiple FortiGate appliances for load balancing purposes, ensuring efficient use of resources (Option A).

Stateful Processing:

For stateful processing, GWLB ensures that traffic flows (both inbound and outbound) for a given connection are directed to the same FortiGate appliance. This maintains session integrity (Option B).

Preservation and Hashing of Traffic:

Options C and D are incorrect as they suggest incorrect behavior regarding traffic content preservation and hashing for data integrity, which are not primary functions of GWLB.

References:

AWS Gateway Load Balancer Documentation: AWS Gateway Load Balancer

FortiGate Integration with GWLB: Fortinet Documentation

FortiSandbox Deployment:

FortiSandbox for AWS deploys new EC2 instances to create isolated environments where it can safely execute and analyze suspicious files. These instances run custom Windows and Linux virtual machines specifically configured for sandboxing (Option D).

Sandboxing Process:

The process involves sending potential malware to these isolated VMs, executing it, and monitoring its behavior to detect malicious activities. The results are then captured and analyzed to provide detailed threat intelligence.

Other Options Analysis:

Option A is incorrect because FortiSandbox for AWS operates entirely within the AWS environment and does not require an on-premises manager.

Option B is incorrect as the FortiSandbox manager is not installed on the AWS platform for managing on-premises instances.

Option C is incorrect because FortiSandbox requires sufficient resources to perform the actual sandboxing and analysis tasks.

References:

FortiSandbox for AWS Documentation: FortiSandbox

Sandboxing Concepts: Sandboxing

Load Balancer Configuration Overview:

The provided configuration indicates that the ELB is an internet-facing load balancer.

Multi-AZ Load Balancing:

The load balancer is configured to distribute traffic across multiple availability zones (A, B, and C), ensuring high availability and fault tolerance (Option A).

Accessing Targets via DNS:

The DNS name of the load balancer (LabELB-716e15332f6401f8.elb.us-east-2.amazonaws.com) can be used to reach the targets behind the ELB, facilitating traffic routing to the appropriate instances (Option C).

Comparison with Other Options:

Option B is incorrect as the ARN is not used to access the load balancer directly.

Option D is incorrect because the load balancer is configured for internet-facing traffic, not just internal VPC traffic.

References:

AWS Elastic Load Balancer Documentation: AWS ELB

Understanding ELB DNS: AWS ELB DNS

SSL Inspection Requirement:

FortiWeb Cloud provides comprehensive SSL inspection capabilities, allowing it to decrypt and inspect HTTPS traffic for threats. This is a crucial feature for many organizations that need to ensure all traffic, including encrypted traffic, is thoroughly inspected (Option C).

Comparison with AWS WAF:

While AWS WAF with Fortinet managed rules provides robust protection, it might not offer the same level of SSL inspection capabilities as FortiWeb Cloud.

Other Considerations:

Option A (Manual WAF signature updates) is incorrect because FortiWeb Cloud updates signatures automatically.

Option B (PCI 6.6 compliance) is a general requirement for any WAF solution, not specific to choosing FortiWeb Cloud over AWS WAF.

Option D (Traffic inspection for malware) is a feature provided by both FortiWeb Cloud and AWS WAF with Fortinet managed rules.

References:

FortiWeb Cloud Overview: FortiWeb Cloud

AWS WAF Documentation: AWS WAF

Scalability:

FortiGate Cloud-Native Firewall (CNF) is designed to scale seamlessly with your cloud infrastructure, providing the necessary protection without requiring manual intervention for scaling (Option B).

Firewall-as-a-Service:

FortiGate CNF is offered as a Firewall-as-a-Service (FWaaS), which simplifies the deployment and management of firewall capabilities directly in the cloud environment (Option D).

Management:

FortiGate CNF can be managed using FortiManager and AWS Firewall Manager, providing comprehensive management capabilities both from Fortinet's platform and AWS's native management tools (Option E).

Other Considerations:

Option A (carrier-grade protection) is not specifically highlighted as a feature of FortiGate CNF.

Option C (uses AWS Elastic Load Balancing) is incorrect as FortiGate CNF operates independently of AWS ELB, although it can integrate with various AWS services.

References:

FortiGate CNF Documentation: FortiGate CNF

AWS Firewall Manager: AWS Firewall Manager

Invalid Credentials:

The debug output shows an "AuthFailure" error, indicating that AWS was not able to validate the provided access credentials. This usually points to incorrect or invalid AWS access or secret keys configured in the AWS Lab SDN connector (Option C).

Clock Skew:

Another common reason for authentication failures in AWS API calls is a clock skew between the FortiGate device and AWS. AWS requires that the system time of the client making the API call is synchronized with its own time, within a small margin. If there is a significant time difference, AWS will reject the credentials (Option B).

Other Options Analysis:

Option A is incorrect because the AWS API supports XML version 1.0.

Option D is incorrect as the error message does not indicate an issue with connecting on port 401.

Option E is incorrect because the error is related to authentication, not the absence of instances.

References:

AWS API Authentication: AWS API Security

FortiGate AWS Integration Guide: FortiGate AWS Integration

Enhanced Redundancy:

Deploying an active-passive (A-P) FortiGate cluster across two availability zones (AZs) provides enhanced redundancy by ensuring that if one AZ fails, the other can take over, maintaining high availability and uptime.

IP Addressing and Subnetting:

One of the major differences when deploying across different AZs compared to the same AZ is that IP addressing and subnetting are not shared between the instances. Each AZ operates independently with its own set of subnets and IP addresses, which must be managed separately (Option D).

Other Options Analysis:

Option A is incorrect because the FortiGate devices in an A-P setup do not act as a single logical instance; they operate in a failover setup.

Option B is incorrect because secondary IP address configuration is used in both single AZ and multi-AZ deployments.

Option C is incorrect because the number of subnets required is typically more when deploying across multiple AZs for redundancy.

References:

FortiGate HA Configuration Guide: FortiGate HA

AWS Availability Zones: AWS AZ