Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A technician is upgrading the RAM in a desktop computer. The motherboard manual states it supports DDR3-1600 RAM. The technician installs a single 8GB DDR4-2400 module. The computer powers on but emits a series of beeps and does not display any video. Which of the following is the MOST likely cause?
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.
A
Best answer
The RAM module is not compatible with the motherboard
DDR3 and DDR4 are not interchangeable; the physical keying prevents proper installation, and even if forced, the electrical specifications differ, causing failure to boot.
B
Distractor review
The RAM module is defective
While a defective module is possible, the most likely issue is incompatibility because the technician installed a DDR4 module into a DDR3-only slot, which will not work even with a functional module.
C
Distractor review
The RAM module was not installed in the correct slot
Installing a module in the wrong slot (e.g., not using the recommended slot for single-channel) could cause issues, but the system would likely still POST and possibly run at reduced performance. The beep codes indicate a critical fault, not a slot configuration issue.
D
Distractor review
The motherboard needs a BIOS update
A BIOS update can improve memory compatibility, but it cannot enable a motherboard to support a different generation of RAM (DDR3 vs DDR4). The hardware is fundamentally incompatible regardless of firmware.
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: The RAM module is not compatible with the motherboard — DDR3 and DDR4 are physically and electrically incompatible. They have different notch positions (keying), different pin counts (240-pin for DDR3 vs 288-pin for DDR4), and different voltage requirements. Inserting a DDR4 module into a DDR3 slot will not work and may cause damage. The beep codes are a typical POST error indicating a memory problem. A defective module is possible but less likely given the mismatched types. The RAM slot orientation might be incorrect if the module doesn't fit, but the technician installed it, so compatibility is the primary issue. A BIOS update would not make DDR4 compatible with a DDR3-only motherboard.
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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