Which of the following solutions can help users who have the current Windows operating systems run legacy applications that are not supported under the latest applications?
A. AppLocker
B. Type 1 hypervisors
C. Sandbox
D. Application virtualization
Correct Answer: B
Question 732:
Which of the following network devices is needed to direct packets to networks outside of the LAN?
A. Hub
B. Switch
C. Router
D. Bridge
Correct Answer: C
Explanation: A router is a network device that connects multiple networks together and directs data packets to their intended destinations. This includes directing packets to networks outside of the local area network (LAN). Routers use
routing tables to determine the best path for data packets to travel.
Hubs and switches operate within a single LAN and are not capable of routing packets to external networks.
Bridges can connect two LANs together, but they do not have the intelligence to route packets to external networks.
Therefore, only routers are capable of directing packets to networks outside of the LAN.
A technician tries installing different toners to fix a printer that is printing blank pages, but the issue persists. Which of the following is most likely causing the issue?
A. Printer drum
B. Printer ink
C. Environmental temperature
D. Corrupted printer drivers
Correct Answer: A
.
Question 734:
A technician is preparing a redesigned conference room for a presentation. The presenter connects a laptop to the LCD projector, but a "No input source" error message is displayed on the LCD projector's screen. However, the presentation is working on the laptop's LCD screen when in mirroring mode on the docking station. Which of the following troubleshooting steps should the technician take first?
A. Replace the LCD projector.
B. Reboot the laptop.
C. Update the display drivers.
D. Check the physical cabling.
Correct Answer: D
Explanation: One of the possible causes of the error message "No input source" is that the LCD projector is not receiving any signal from the connected device, such as a laptop1. This could be due to a loose or faulty cable or connector, or an incorrect input source selected on the projector2. Therefore, the first troubleshooting step that the technician should take is to check the physical cabling and make sure it is properly connected and secured12.
Question 735:
A user dropped a laptop while it was turned on. The hard drive now makes a clicking sound, and the laptop will not start up. Which of the following most likely explains this situation?
A. The hard drive bracket screws are lose.
B. The hard drive jumpers need to be reseated.
C. The hard drive is damaged.
D. The SATA cable is lose.
Correct Answer: C
A clicking hard drive is usually a sign of a mechanical failure, where the read/write heads are not functioning properly or the platters are scratched or broken. This can be caused by physical shock, such as dropping the laptop while it was turned on. A damaged hard drive may not be able to boot up the operating system or access the data stored on it. This is a serious problem that requires data recovery and hard drive replacement. References Identifying Hard Drive Sounds and Determining What They Mean Hard Drive Clicking? See How to Fix Click Hard Drive On Your Own Chapter 3: Hardware
Question 736:
A technician just finished building a new PC and needs to install a firmware update for the system board UEFI. The technician is experiencing issues while accessing the USB key. Which of the following features should the technician most likely disable in order to complete this task?
A. TPM security
B. USB 3.0 support
C. PXE boot capability
D. Secure Boot
Correct Answer: D
Explanation: Secure Boot is a feature of UEFI (Unified Extensible Firmware Interface) that prevents unauthorized software from running during the boot process. Secure Boot verifies the digital signature of the boot loader and the operating system, and only allows them to run if they are signed by a trusted authority. However, Secure Boot can also prevent some legitimate software, such as firmware updates, from running if they are not signed or recognized by the system. Therefore, the technician may need to disable Secure Boot in order to install a firmware update for the system board UEFI from a USB key34. The other features are not likely to interfere with the firmware update, unless they are misconfigured or incompatible with the USB key. References
3: bios - Can't enable secure boot in Windows 11
4: Acer aspire e5-571 Legacy Secure Boot?
Question 737:
A company wants to add virtual servers to handle unusually high web traffic usage. Which of the following is the most efficient way?
A. Community cloud
B. File synchronization
C. Rapid elasticity
D. Cloud VDI
Correct Answer: C
Rapid elasticity is the ability of a cloud service to scale up or down the resources (such as virtual servers, storage, bandwidth, etc.) according to the demand of the users. This is an efficient way to handle unusually high web traffic usage, as it allows the company to provision more virtual servers when needed and release them when not needed, without wasting resources or paying for unused capacity. Rapid elasticity also improves the performance and availability of the web service, as it can adjust to the fluctuations in traffic and avoid overloading or downtime. References Rapid Elasticity in Cloud Computing: On-Demand Scaling for Business Chapter 4: Virtualization and Cloud Computing
Question 738:
A user returns to work after a two-week vacation and cannot connect to an internal server. The remote drives were working the last time the user accessed them. Which of the following steps should the technician take next?
A. Conduct external research on the server software vendor's website.
B. Reference the server vendor's documentation for guidance.
C. Confirm a theory and determine the next steps to resolve the issue.
D. Determine if any infrastructure changes have been made.
Correct Answer: D
Explanation: The first step in troubleshooting any network connectivity issue is to identify the scope and source of the problem. The technician should check if any infrastructure changes have been made during the user's absence, such as updates, patches, configuration changes, or hardware replacements. These changes could affect the network settings, firewall rules, permissions, or compatibility of the user's device or the server. The technician should also verify if other users or devices can access the server or if the problem is isolated to the user's device. By determining if any infrastructure changes have been made, the technician can narrow down the possible causes and formulate a theory to test. References Chapter 5: Hardware and Network Troubleshooting How to fix HTTP 500 internal server error? Remote desktop connection: An internal error has occurred
Question 739:
An engineer is building a workstation that requires the following components:
An ATX motherboard A multi-core processor A dedicated graphics solution A SATA hard drive DDR4 memory
Which of the following power supply specifications would meet the workstation criteria?
A. 12V, 500W output
B. SFX, 18-pin connector
C. DC input
D. Type A socket
Correct Answer: A
References
3: What Power Supply Do I Have: Quick Ways to Find Your PSU Specs
4: Power Supply 101: A Reference Of Specifications
5: How to Choose the Right Power Supply for Your PC
6: SFX vs ATX PSU: What's the Difference? AC vs DC Power Supply: What's the Difference? AC power plugs and sockets - Wikipedia
Question 740:
Which of the following protocols provides the fastest bandwidth?
A. 802.11a
B. 802.11ac
C. 802.11ax
D. 802.11n
Correct Answer: C
The 802.11ax protocol, also known as Wi-Fi 6, provides the fastest bandwidth among the options listed. It can achieve up to 10 Gbps of data transfer rate, using technologies such as OFDMA, MU-MIMO, and 1024-QAM. The 802.11ac protocol, or Wi-Fi 5, is the second fastest, with a maximum of 3.46 Gbps, followed by the 802.11n protocol, or Wi-Fi 4, with a maximum of 600 Mbps. The 802.11a protocol is the slowest, with a maximum of 54 Mbps
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