A company hosts a critical web application on a public cloud provider. The architecture uses virtual server instances in two geographically separate data centers (regions). A global load balancer monitors the health of each region and distributes incoming user traffic. If an entire region becomes unavailable due to a natural disaster, the load balancer automatically redirects all traffic to the remaining healthy region. This design is intended to meet a specific business requirement. Which cloud characteristic does this architecture BEST demonstrate?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
Best answer
High availability
High availability is designed to keep services online despite failures. By deploying across multiple regions with automatic failover, the company ensures that the application remains accessible if one region fails.
Distractor review
Elasticity
Elasticity is the ability to automatically add or remove resources (e.g., instances) in response to changing demand. The scenario focuses on failover due to a disaster, not on scaling to handle traffic variations.
Distractor review
Resource pooling
Resource pooling is a characteristic of cloud computing where the provider's infrastructure is shared among many customers. This scenario does not illustrate multi-tenancy or resource sharing.
Distractor review
Measured service
Measured service refers to the monitoring and billing of cloud resource usage (e.g., pay-as-you-go). The scenario does not involve usage tracking or billing.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A user reports intermittent network connectivity on a desktop computer. The technician observes that the Ethernet link light on the NIC turns off for a few seconds and then turns back on. The cable passes a wiremap test, the switch port is verified good with another device, and the NIC driver is updated. The issue occurs more frequently when the computer's case fan runs at high speed. Which of the following is the MOST likely cause?
Question 2
A workstation is unable to connect to the internet. The technician runs the 'ipconfig' command and sees the IPv4 address is 169.254.15.200 with a subnet mask of 255.255.0.0. The workstation can ping other devices on the local subnet but cannot ping the default gateway or any external addresses. Which TWO actions should the technician take to resolve this issue? (Select two.)
Question 3
A workstation is connected to a managed switch. It obtains a valid IP address (192.168.10.50) from the DHCP server, but it cannot ping the default gateway (192.168.10.1). The link light on both the workstation NIC and the switch port are solid green. Other workstations on the same switch CAN ping the default gateway successfully. The technician accesses the switch management interface and finds that the workstation's port is configured as an access port on VLAN 10. The default gateway is located on VLAN 20. An inter-VLAN router is configured but not explicitly allowing VLAN 10 access to VLAN 20. Which of the following is the MOST likely cause of the problem?
Question 4
A company develops a web application that relies on a custom library available only for a specific Linux distribution. They want to deploy the application in the cloud with minimal administrative overhead, but they need full control over the software stack, including the ability to install the custom library and configure the web server. Which cloud service model BEST meets these requirements?
Question 5
A company has a legacy virtual machine running on a deprecated hypervisor (Hyper-V). They want to migrate this VM to a new hypervisor (VMware vSphere) hosted in a private cloud while preserving the VM's configuration, installed applications, and data. The migration must be performed with minimal downtime. Which of the following methods is MOST appropriate?
Question 6
A company hosts a critical database on a virtual machine in a public cloud. The database requires persistent storage that must be retained even if the VM is terminated. The storage must also be accessible from multiple VMs simultaneously for a future high-availability configuration. Which type of cloud storage BEST meets these requirements?
FAQ
Questions learners often ask
What does this 220-1101 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: High availability — This architecture is designed to maintain application accessibility even when a major component (an entire region) fails. This is the definition of high availability. High availability ensures minimal downtime by eliminating single points of failure and using failover mechanisms. Elasticity refers to scaling resources up or down based on demand; this scenario does not involve scaling. Resource pooling describes the provider's ability to serve multiple customers with shared physical resources. Measured service is the pay-per-use metering model. Therefore, high availability is the correct characteristic.
What should I do if I get this 220-1101 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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