A user who is facilitating a videoconference reports that the participants can be heard. However, when the user attempts to speak, none of the participants can hear the user. Which of the following is the FIRST step the technician should take?
A. Restart the Videoconference.
B. Replace the laptop.
C. Check the audio inputs.
D. Try another microphone.
Correct Answer: C
The technician should check that the audio inputs are configured correctly for the videoconference software and that they are not muted or disabled.The technician should also make sure that the microphone is plugged in properly and that it
is not faulty or damaged.If possible, the technician should test the microphone on another device or use another microphone on the same device to isolate the problem.
Which of the following does a DHCP reservation MOST likely apply to?
A. Smart TV
B. Mobile device
C. Workstation
D. Printer
Correct Answer: D
A DHCP reservation is a feature that allows a DHCP server to assign a specific IP address to a specific device on a network, based on its MAC address. This ensures that the device always receives the same IP address, even if it is disconnected or rebooted. A DHCP reservation is most likely applied to a printer, as it can make it easier for users to find and connect to the printer on the network, without having to change the printer settings or deal with IP address conflicts. Reference: https://www.comptia.org/training/books/a-core-1-220-1101-study-guide (page 84)
Question 73:
A user reports a monitor, keyboard, mouse. and headset are no longer functioning. The user has restarted the laptop and tested an alternative headset and monitor, but the issue persists. The technician notices the user has a printer. USB-C hub, and AC adapter plugged into the laptop. Which of the following should the technician do to MOST likely resolve the issue?
A. Verify the AC adaptor voltage.
B. Repair the operating system.
C. Replace the user's USB-C hub.
D. Reinstall the drivers for affected devices.
E. Make sure the printer is not drawing too much power.
Correct Answer: C
The most likely cause of the issue is that the user's USB-C hub is faulty or incompatible with the laptop. The USB-C hub is a device that allows the user to connect multiple peripherals to the laptop using a single USB-C port. If the hub is not working properly, it may prevent the monitor, keyboard, mouse, and headset from functioning. The technician should replace the user's USB-C hub with a new one that is compatible with the laptop and test the peripherals again. Verifying the AC adapter voltage will not help with the issue, as the AC adapter is used to power the laptop, not the peripherals. Repairing the operating system will not help either, as the issue is not related to software. Reinstalling the drivers for affected devices may not help, as the issue may be caused by the hub, not the devices. Making sure the printer is not drawing too much power is irrelevant, as the printer is not connected to the hub or affecting the other peripherals. References: https://www.comptia.org/blog/what-is-usb-c
Question 74:
A technician is attempting to connect the wired LANs at two nearby buildings by installing a wireless point-to-point connection. Which of the following should the technician consider?
A. NFC protocol data rate
B. RFID frequency range
C. Bluetooth version compatibility
D. Allowable limits for transmit power
Correct Answer: D
When installing a wireless point-to-point connection between two buildings, the technician should consider the allowable limits for transmit power, which vary depending on the country or region. Exceeding these limits could interfere with other wireless devices or violate regulations. NFC protocol data rate, RFID frequency range, and Bluetooth version compatibility are not relevant for a wireless point-to-point connection.
Question 75:
A bank wants to leverage cloud computing but would like a cloud solution in which infrastructure is shared with businesses in the same industry. Which of the following cloud models would BEST address the bank's need?
A. Private
B. Hybrid
C. Public
D. Community
Correct Answer: D
A community cloud model is a cloud solution in which infrastructure is shared among organizations that have common interests, goals, or concerns, such as security, compliance, or industry standards. This model would best address the bank's need to leverage cloud computing while maintaining a high level of security and privacy for its data and transactions. The other cloud models are not suitable for this scenario, as they either do not offer enough control over the infrastructure (public cloud), or do not allow for sharing of resources among similar organizations (private cloud and hybrid cloud). Verified References: [What Is Community Cloud?]
Question 76:
A SOHO customer would like to purchase network hardware to enhance security. The hardware should perform stateful packet Inspection
Which of the following would BEST address the customer's need?
A. Switch
B. Firewall
C. Router
D. Proxy
Correct Answer: B
A firewall is a network device that performs stateful packet inspection, which means it analyzes incoming and outgoing network traffic based on predefined rules and filters, and allows or blocks packets based on their source, destination, protocol, port, or content. A firewall can enhance security by preventing unauthorized access, blocking malicious traffic, enforcing policies, and logging events. A firewall can be hardware-based or software-based, or a combination of both.
A network engineer recently deployed a new application server in a cloud environment. Which of the following should be implemented to prevent a single point of failure within the system?
A. Rapid elasticity
B. RAID
C. High availability
D. Shared resources
Correct Answer: C
High availability is a design principle that ensures a system or service can operate continuously without significant downtime or disruption. High availability can be achieved by implementing redundancy, failover, load balancing, and backup strategies. High availability can prevent a single point of failure within the system, which means that if one component fails, another one can take over its function. Rapid elasticity is the ability to scale up or down the resources of a system according to the demand, but it does not prevent a single point of failure. RAID is a method of storing data across multiple disks to provide redundancy and performance, but it does not prevent a single point of failure at the server level. Shared resources are the resources that are pooled and accessed by multiple users or systems, but they do not prevent a single point of failure either. References:https://www.comptia.org/blog/what-is-cloud-computing
Question 78:
A technician is working with a user to set up scanning. The user requires the scans to be viewable on the network for the entire department. Which of the following settings on the MFP should the technician edit to BEST address the user's request?
A. Scan to email
B. Server message block
C. Secured prints
D. Web services
E. Printer share
Correct Answer: B
Server message block (SMB) is the setting on the multifunction printer (MFP) that the technician should edit to best address the user's request of making the scans viewable on the network for the entire department. SMB is a network protocol that allows file sharing and printer access among different devices on a network. The technician can configure the MFP to scan to a shared folder on the network using SMB. Scan to email is a feature that allows the MFP to send scanned documents as email attachments, which may not be viewable by everyone in the department. Secured prints is a feature that allows the MFP to print documents only after entering a PIN or password, which does not address the user's request. Web services is a feature that allows the MFP to access online services such as cloud storage or email, which may not be viewable by everyone in the department either. Printer share is not a setting on the MFP, but a feature that allows a device to share its printer with other devices on a network
Question 79:
To which of the following should a technician connect individual pairs of a Cat 6 cable in order to provide a connection to a switch?
A. Access point
B. Patch panel
C. Hub
D. Firewall
E. Wall jack
Correct Answer: B
A patch panel is a mounted hardware unit containing ports used to manage cable connections. The individual pairs of a Cat 6 cable are terminated on the patch panel, which then provides a central location for cable management and organization. The patch panel is then connected to the switch using a patch cable.
Question 80:
A technician is building a video production workstation that will consist of two high-end GPUs The technician is reusing an existing ATX case. Which of the following should the technician select as the MOST appropriate power supply type?
A. 400W external power supply
B. 2x 600W redundant power supplies
C. 1.200W modular power supply
D. 1.5O0W uninterruptible power supply
Correct Answer: C
A video production workstation that will consist of two high-end GPUs will require a lot of power and a modular power supply. A modular power supply allows the technician to connect only the cables that are needed for the components, which reduces clutter and improves airflow. A 1,200W power supply should be enough to power the two GPUs and other components, but the exact wattage depends on the specifications of the GPUs and other components. A 400W external power supply is not enough to power the workstation and may not be compatible with the ATX case. Two 600W redundant power supplies are unnecessary and may not fit in the ATX case. A 1,500W uninterruptible power supply (UPS) is a device that provides backup power in case of a power outage, but it is not a replacement for a power supply unit (PSU).
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