Podcast
Questions and Answers
Which type of RAM is MOST likely to be used for installing additional RAM in a desktop computer?
Which type of RAM is MOST likely to be used for installing additional RAM in a desktop computer?
- ECC
- DDR3 (correct)
- VRAM
- SODIMM
What is the MOST likely cause of vertical streaks appearing on the output of a laser printer?
What is the MOST likely cause of vertical streaks appearing on the output of a laser printer?
- Ribbon
- Drum (correct)
- Roller
- Transfer belt
What is the MOST likely cause of the error message 'HDMI Blocked due to Copy Protection' when playing a DVD on a projector?
What is the MOST likely cause of the error message 'HDMI Blocked due to Copy Protection' when playing a DVD on a projector?
- The user needs to enable copy-protected sources in the projector's settings.
- The HDMI cannot carry the signal from the DVD to the projector.
- The projector does not support the necessary HDCP protocol. (correct)
- The user needs to switch from HDMI to a cable standard such as DisplayPort.
What is the MOST likely reason a technician cannot select a channel with almost no RF pollution for a wireless backhaul?
What is the MOST likely reason a technician cannot select a channel with almost no RF pollution for a wireless backhaul?
Which printer consumable is MOST likely causing double images on printouts if a maintenance kit has not been installed in more than a year?
Which printer consumable is MOST likely causing double images on printouts if a maintenance kit has not been installed in more than a year?
What action should be performed if a technician is unable to create any VMs after installing the necessary software on a workstation configured as a VM host?
What action should be performed if a technician is unable to create any VMs after installing the necessary software on a workstation configured as a VM host?
What troubleshooting step should a technician take first if a user's computer is not receiving a network connection and the port on the patch panel is unlabeled?
What troubleshooting step should a technician take first if a user's computer is not receiving a network connection and the port on the patch panel is unlabeled?
Which network tool should a technician use to identify the port?
Which network tool should a technician use to identify the port?
What is the most likely solution to a projector that has video but no audio during a presentation?
What is the most likely solution to a projector that has video but no audio during a presentation?
Which cable category is likely limiting a computer's transfer speed to 100Mbps?
Which cable category is likely limiting a computer's transfer speed to 100Mbps?
If a videoconferencing program cannot open a webcam that was working previously, what should the user do first?
If a videoconferencing program cannot open a webcam that was working previously, what should the user do first?
What feature must be enabled on a mobile device to authenticate using the 13.56MHz frequency short band?
What feature must be enabled on a mobile device to authenticate using the 13.56MHz frequency short band?
Which wireless standard supports MIMO technology?
Which wireless standard supports MIMO technology?
When a monitor displays 'No input signal detected', what should be checked first?
When a monitor displays 'No input signal detected', what should be checked first?
Which component is responsible for enabling input on a mobile device's touch screen?
Which component is responsible for enabling input on a mobile device's touch screen?
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Study Notes
RAM Installation
- DDR3 is the most commonly used type of RAM in desktop computers.
- SODIMM is typically used in laptops, not desktops.
- ECC RAM is used in servers for error correction.
- VRAM is specialized for video cards, not standard desktop usage.
Laser Printer Issues
- Vertical streaks on printouts are often caused by a worn drum.
- A transfer belt, roller, and ribbon are less likely causes of streaking.
HDMI Error with Projector
- HDMI error stating "Blocked due to Copy Protection" is related to HDCP protocol support.
- A compatible cable standard like DisplayPort may not resolve HDMI-specific issues.
- Switching settings in the projector to enable content protection may be necessary.
Wireless Backhaul Channel Selection
- A heavily polluted RF environment can affect wireless channel selection.
- Reserved channels for licensed use cannot be selected freely.
- Vendor unlocking may be required for certain channels.
Laser Printer Double Image
- Double images on printouts are typically due to a worn fuser.
- Maintenance kits can affect printer performance and should be checked regularly.
VM Host Configuration
- Creating VMs may fail if multithreading is not enabled in the BIOS settings.
- Other settings like TPM and Fast Startup are less likely to impact VM creation.
Identifying Patch Panel Ports
- A toner probe is the best tool for identifying unlabeled ports on a patch panel.
- Other tools like crimpers and punchdown tools are not suited for this task.
Projector Audio Issues
- To resolve projector audio issues, utilizing an HDMI connection is recommended.
- Other connections like VGA and DVI may not carry audio signals.
Network Speed Limitations
- Cat 5 cable restricts transfer speeds to 100Mbps despite using a Gigabit LAN card.
- Replacing with Cat 5e or higher is necessary for Gigabit speeds.
Webcam Functionality
- Closing other video software might resolve conflicts with the webcam.
- Compatibility adjustments and reseating the webcam may also be beneficial.
Mobile Device Authentication
- NFC must be enabled on mobile devices for authentication with new security measures.
- Bluetooth, biometrics, and PIN are not required for this specific authentication method.
MIMO Technology Standards
- 802.11n is the standard that supports MIMO (Multiple Input Multiple Output) technology.
- Older standards like 802.11a, b, and g do not support MIMO.
PC Display Issues
- "No input signal detected" can be resolved by checking the monitor's power connections.
- Changing BIOS settings or connector settings may be unnecessary initially.
Touchscreen Input on Mobile Devices
- A digitizer enables the input functionality on a mobile device's touchscreen.
- Other components like OLED, inverter, and CMOS sensor serve different roles.
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