Microsoft Certified Azure Fundamentals · Free Practice Question Easy
Question 23
Which of the following is NOT a cost saving solution?
-
A
Choosing an appropriate instance type for a VM
-
B
Use Azure Reserved Virtual Machine instances
-
C
Using a Pay as you go Subscription
-
D
Load balance your virtual machines to manage incoming traffic
Reveal correct answer
Correct answer: D
Explanation
Load balancing is used for PERFORMANCE OPTIMISATION and not cost saving.
Load balancing refers to evenly distributing load (incoming network traffic) across a group of backend resources or servers.
Azure Load Balancer operates at layer 4 of the Open Systems Interconnection (OSI) model. It's the single point of contact for clients. Load balancer distributes inbound flows that arrive at the load balancer's front end to backend pool instances. These flows are according to configured load-balancing rules and health probes. The backend pool instances can be Azure Virtual Machines or instances in a virtual machine scale set.
A public load balancer can provide outbound connections for virtual machines (VMs) inside your virtual network. These connections are accomplished by translating their private IP addresses to public IP addresses. Public Load Balancers are used to load balance internet traffic to your VMs.
An internal (or private) load balancer is used where private IPs are needed at the frontend only. Internal load balancers are used to load balance traffic inside a virtual network. A load balancer frontend can be accessed from an on-premises network in a hybrid scenario.
Reference: https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-overview
A. Choosing an appropriate instance type for a VM is essential for optimizing performance and cost efficiency. By selecting the right instance type based on workload requirements, you can avoid over-provisioning resources and reduce unnecessary expenses.
B. Using Azure Reserved Virtual Machine instances involves committing to a one- or three-year term to receive a discount on the VM usage cost. This can lead to significant cost savings compared to pay-as-you-go pricing, especially for steady-state workloads.
C. Using a Pay as you go Subscription means paying for services based on actual usage, which can be cost-effective for fluctuating workloads. It allows flexibility in scaling resources up or down as needed, potentially saving costs compared to fixed subscriptions.
D. Load balancing virtual machines to manage incoming traffic is not primarily a cost-saving solution. While load balancing helps distribute traffic efficiently and improve application performance, its main purpose is to enhance availability and reliability rather than directly reducing costs.
Discussion
Think the marked answer is wrong, or have a better explanation? Share it below — comments appear after review.
