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[General] CompTIA 220-1101 Valid Test Vce | 220-1101 Test Engine

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【General】 CompTIA 220-1101 Valid Test Vce | 220-1101 Test Engine

Posted at yesterday 22:27      View：3 | Replies：0        Print      Only Author   [Copy Link] 1#
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CompTIA A+ Certification Exam: Core 1 Sample Questions (Q783-Q788):NEW QUESTION # 783
A user with a self-configured, static IP address cannot connect to the Internet. The technician runs an ipconfig command and receives the following output:

Which of the following should the technician edit?
  • A. DHCP server
  • B. Default gateway
  • C. IPv4 address
  • D. Subnet mask
Answer: B
Explanation:
A default gateway is the device that connects a local network to other networks, such as the internet. A default gateway is usually a router or a modem that has an IP address on the same subnet as the local network. A default gateway is necessary for a device to communicate with devices outside its local network.
In this case, the user has a self-configured, static IP address of 192.168.1.20, which belongs to the subnet 192.168.1.0/24 (with a subnet mask of 255.255.255.0). However, the default gateway is set to 192.168.0.1, which belongs to a different subnet (192.168.0.0/24). This means that the user's device cannot reach the default gateway, and therefore cannot connect to the internet. The technician should edit the default gateway to match the correct subnet of the user's device, such as 192.168.1.1 or 192.168.1.254, depending on the configuration of the network.

NEW QUESTION # 784
A natural disaster occurred, and the storage system for the development team is unrecoverable. The technician is preparing replacement storage arrays that include a hypervisor with the capacity to support several virtual machines. Two separate bays are available, and both should be utilized.
Requirements for the primary array include the following:
* No need to be scalable
* Very fast on reads
* Fault tolerance of one drive
* Ability to function with only one drive
* Easily recoverable data
* High redundancy
* Minimum number of drives
Requirements for the secondary array include the following:
* Fault tolerance of one drive
* Total space of 600G3
* Best write performance
* Minimum number of drives
Instructions:
Drag and Drop the appropriate Hard Drives. Then Open each array to complete the configuration.

Answer:
Explanation:

Explanation
Primary Array:
Drag and drop two 120 GB SSD hard drives to the primary array bay.
Open the primary array and select RAID 1 as the RAID level. RAID 1 provides fault tolerance of one drive, ability to function with only one drive, easily recoverable data, high redundancy, and very fast on reads. It also does not need to be scalable and uses the minimum number of drives (two) for RAID 1.
Confirm the configuration and close the primary array.
Secondary Array:
Drag and drop two 300 GB SSD hard drives to the secondary array bay.
Open the secondary array and select RAID 0 as the RAID level. RAID 0 provides the best write performance and uses the minimum number of drives (two) for RAID 0. It also provides a total space of
600 GB (300 GB x 2), which meets the requirement.
Confirm the configuration and close the secondary array.
You have completed the configuration of the storage arrays.

NEW QUESTION # 785
A company wants to use client-side visualization for application testing. Which of the following configurations would BEST support this goal?
  • A.
  • B.
  • C.
  • D.
Answer: C

NEW QUESTION # 786
A user needs to upgrade the power supply of an older workstation to properly power a new graphics card.
Which of the following criteria should the technician check to ensure the power supply will support the upgraded workstation? (Select two).
  • A. Efficiency rating
  • B. Heat dissipation
  • C. Form factor
  • D. Fan type
  • E. Wattage
  • F. Modular cabling
Answer: C,E
Explanation:
The technician should check the wattage and the form factor of the power supply to ensure it will support the upgraded workstation. These are the two most important criteria for choosing a compatible and adequate power supply.
Wattage: The wattage of a power supply is the maximum amount of power it can deliver to the components of the workstation. The wattage of the power supply should match or exceed the total power consumption of the components, especially the new graphics card, which is usually the most power-hungry part. If the power supply does not have enough wattage, it may cause instability, crashes, or damage to the workstation. To estimate the power consumption of the components, the technician can use a power supply calculator tool, such as the ones found in the web search results123. The technician should also add some headroom to the wattage, such as 20% to 50%, to account for peak power consumption, future upgrades, or power supply degradation.
Form factor: The form factor of a power supply is the physical size and shape of the unit. The form factor of the power supply should fit in the case of the workstation and match the mounting holes and screws. The most common form factor for desktop power supplies is ATX, which measures 150 x 86 x 140 mm. However, some older or smaller workstations may use different form factors, such as SFX, TFX, or FlexATX. The technician should check the specifications of the workstation case and the power supply to ensure they have the same form factor.
Other criteria, such as efficiency rating, heat dissipation, fan type, and modular cabling, are not essential for supporting the upgraded workstation, but they may affect the performance, noise, or aesthetics of the power supply. The efficiency rating is the percentage of input power that is converted to output power, and it indicates how much power is wasted as heat. The heat dissipation is the ability of the power supply to cool itself and prevent overheating. The fan type is the design and size of the fan that cools the power supply, and it affects the noise level and airflow of the unit. The modular cabling is the feature that allows the user to detach unused cables from the power supply, and it helps to reduce clutter and improve airflow inside the case.
References:
How to Choose the Right Power Supply for Your PC - Lifewire4
How to Choose a Power Supply: 7 Steps (with Pictures) - wikiHow5
How to pick the best PC power supply - PCWorld6
Power Supply Calculator - PSU Wattage Calculator | Newegg1
Power Supply Calculator | Cooler Master2
Power Supply Calculator - PSU Calculator | OuterVision3

NEW QUESTION # 787
A user tries to turn on a computer but gets the following error message: Bootable device not found. The computer had no issues yesterday. Which of the following is the most likely reason for this error?
  • A. The network cable is unplugged.
  • B. A misconfigured boot device is in the BIOS
  • C. The mouse and keyboard are not connected.
  • D. The HDD is malfunctioning.
Answer: D
Explanation:
A bootable device not found error usually indicates that the system cannot access or detect the hard disk that contains the operating system files. This could be due to a physical or logical damage to the hard disk, such as bad sectors, corrupted partitions, or faulty cables. According to the web search results, some possible causes and solutions for this error are:
Hard drive connection issue: Check the cabling and power supply to the hard drive and make sure they are properly connected.
Corrupt hard drive partitions: Use a Windows installation media to scan and repair the corrupt system files using the System File Checker (SFC) tool. Damaged hard drive: Replace the hard drive with a new one and reinstall the operating system. Incorrect boot sequence in the BIOS:
Enter the BIOS or UEFI settings menu and change the boot order to make sure that the system drive is in the first position. Damaged MBR (Master Boot Record): Use a Windows installation media to repair the Windows bootloader using the Diskpart tool.

NEW QUESTION # 788
......
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