Networking and Connectivity Flashcards
7 cards from real CompTIA Cloud+ practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Networking and Connectivity flashcards as text
What is the primary purpose of a Virtual Private Cloud (VPC)?
Answer: To provide a logically isolated network environment in the cloud
A VPC provides a logically isolated section of the cloud where you can launch resources within a virtual network you define.
Which type of subnet in a VPC allows instances to communicate directly with the internet?
Answer: Public subnet
A public subnet has a route to an internet gateway, allowing instances with public IP addresses to communicate directly with the internet.
What is the key difference between a Security Group and a Network ACL (NACL) in cloud networking?
Answer: Security Groups are stateful, while NACLs are stateless
Security Groups are stateful (return traffic is automatically allowed), while NACLs are stateless (return traffic must be explicitly permitted).
A company needs to distribute incoming web traffic across multiple cloud instances for high availability. Which service should they deploy?
Answer: Load Balancer
A load balancer distributes incoming traffic across multiple backend instances, ensuring high availability and improved application performance.
Which routing protocol is standard for exchanging routes between autonomous systems in hybrid cloud and internet environments?
Answer: BGP
Border Gateway Protocol (BGP) is the standard inter-AS routing protocol used on the internet and in hybrid cloud connections such as Direct Connect and ExpressRoute.
What is the purpose of a NAT Gateway in a cloud VPC?
Answer: To allow private subnet instances to reach the internet without exposing them publicly
A NAT Gateway lets instances in private subnets initiate outbound internet connections while blocking unsolicited inbound connections from the internet.
Which cloud networking feature allows two VPCs to communicate using private IP addresses without traffic traversing the public internet?
Answer: VPC Peering
VPC Peering creates a direct private network connection between two VPCs, enabling resources in each VPC to communicate using private IP addresses.