Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A technician is installing two 8 GB DDR4-3200 memory modules into a desktop motherboard that has four DIMM slots: A1, A2, B1, B2. The technician installs the modules in slots A1 and A2. When the system boots, it only detects 8 GB of RAM. 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
Distractor review
One of the RAM modules is defective
While possible, the symptom of detecting exactly half the memory points more toward a configuration issue than a single defective module. If one module were defective, the system might not POST or could show errors, but it might still detect the other module. However, the pattern of detecting only 8 GB when two 8 GB sticks are installed strongly suggests a channel placement problem.
B
Best answer
The modules are installed in the wrong slots for dual-channel support
Correct. By placing both sticks in slots A1 and A2 (same channel), the system may only recognize one channel or one stick. The motherboard likely requires modules to be installed in alternate slots (e.g., A1 and B1, or A2 and B2) to enable dual-channel and detect both modules.
C
Distractor review
The memory modules are not compatible with the motherboard
If the modules were incompatible, the system would likely fail to POST entirely, emit beep codes, or show no video output. Since the system boots and detects 8 GB, the modules are probably compatible but misconfigured.
D
Distractor review
The memory speed is set too high in the BIOS
Incorrect memory speed settings usually cause instability or failure to boot, not a halving of total detected memory. The BIOS might default to a safe speed, but it would still recognize both modules if they were properly installed.
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 modules are installed in the wrong slots for dual-channel support — Most desktop motherboards use a dual-channel memory architecture where slots are paired (e.g., A1/B1 and A2/B2). To enable dual-channel and proper detection, identical memory modules should be installed in matching color-coded slots, typically the same channel. Installing both modules in slots A1 and A2 places them on the same memory channel, which often results in the system only recognizing one module or misconfiguring the memory. The correct configuration would be to install them in slots A1 and B1 or A2 and B2 (depending on the motherboard manual) to ensure both modules are detected and dual-channel mode is enabled. Other options like faulty RAM or incompatible speed are less likely because the system boots and detects some memory.
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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