Security & ComplianceCâu 43 / 100
In a VPC, which stateful virtual firewall controls inbound and outbound traffic at the instance level?
a.Network access control list (NACL)
b.Security group
c.Internet gateway
d.Route table
Giải thích
A security group acts as a stateful firewall at the instance (ENI) level, where return traffic is automatically allowed. NACLs, by contrast, are stateless firewalls that operate at the subnet level.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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