ACTUAL TEST 2026 QUESTIONS WITH
ANSWERS GRADED A+
>> VPC CIDR Blocks
Answer: IP address range that is assigned to instances and other resources within the VPC.
>> Subnets
Answer: logical container within a VPC that holds VPC resources, including EC2 instances. A subnet
isolates instances from each other, control how traffic flows to and from your instances, and organize
them by function. Every instances must exist within a subnet.
>> Secondary CIDR blocks must come from…
Answer: RFC 1918 address range as the primary or the publicly routable range
>> True or false: you select the IPv6 CIDR blocks
Answer: False. Aws assigns one to your vpc upon request.
>> BYOIP
Answer: Bring your own IP. A feature where you can bring your own purchased IPv6 to aws vpc.
>> Availability Zones
Answer: A small geographic location like a datacenter
>> Availability zones make up a region and are designed….
Answer: So a failure in a zone doesn’t cause another
>> Best practice: putting resources is different availability zones increases…
Answer: Resiliency
>> Elastic network interface (ENI)
Answer: Virtual network interface that allows an instance to communicate with other network
resources, including AWS services and resources
>> You cant change the following with a primary network interface
Answer: Can’t remove it from an instance and cannot change its subnet.
>> Elastic Network Adapter
Answer: supports throughput speeds up to 100 gbps.