GET READY FOR 220-1101 WITH COMPTIA'S REALISTIC EXAM QUESTIONS AND ACCURATE ANSWERS

Get Ready for 220-1101 with CompTIA's Realistic Exam Questions and Accurate Answers

Get Ready for 220-1101 with CompTIA's Realistic Exam Questions and Accurate Answers

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CompTIA A+ Certification Exam: Core 1 Sample Questions (Q229-Q234):

NEW QUESTION # 229
Which of the following would be BEST reason to use a virtual machine as a sandbox?

  • A. To have dedicated hardware for a single system
  • B. To run multiple machines on the same hardware
  • C. To test new software in a safe environment
  • D. To increase the efficient use of computing resources

Answer: C

Explanation:
The main reason to use a virtual machine as a sandbox is to test new software in a safe environment without risking the integrity of the host operating system. Using a virtual machine enables the testing of software and allows for the isolation of the software from the host system. Reference: CompTIA A+ Certification Study Guide, Tenth Edition, pg. 409


NEW QUESTION # 230
A technician is troubleshooting Wi-Fi connection issues on a customer's laptop. The laptop connects but intermittently disconnects. The technician has already confirmed the wireless card is properly installed, the router settings are correct, and the wireless signal strength is normal. Which of the following should the technician investigate next?

  • A. Number of connected devices
  • B. MAC address filter
  • C. Firewall settings
  • D. Radio frequency

Answer: D

Explanation:
Explanation
The next thing that the technician should investigate is D. Radio frequency.
Radio frequency is the range of electromagnetic waves that are used to transmit wireless signals. Different devices and networks use different radio frequencies, such as 2.4 GHz or 5 GHz, to communicate with each other. If there are multiple devices or networks using the same or overlapping radio frequencies, they can interfere with each other and cause Wi-Fi connection issues, such as intermittent disconnections, slow speeds, or poor quality .
To fix this issue, the technician can try changing the radio frequency or channel of the router or the laptop, to avoid interference from other sources. The technician can also use a tool such as Wi-Fi Analyzer to scan the nearby wireless networks and find the best frequency or channel to use. Alternatively, the technician can move the router or the laptop to a different location, away from potential sources of interference, such as cordless phones, microwaves, Bluetooth devices, or other routers .
The other options are less likely to be the reason for the issue. Firewall settings are software configurations that control the network traffic and security of a device. They may block some websites or applications from accessing the internet, but they should not affect the Wi-Fi connection itself. MAC address filter is a feature that allows the router to restrict access to specific devices based on their MAC addresses, which are unique identifiers for network interfaces. If the MAC address filter is enabled and the laptop's MAC address is not on the allowed list, it will not be able to connect to the Wi-Fi network at all, not intermittently. Number of connected devices is the amount of devices that are using the same Wi-Fi network at the same time. This may affect the network performance or bandwidth, but it should not cause intermittent disconnections, unless the network is overloaded or unstable.
References:
How To Fix WiFi Connection Problems - Help Desk Geek
How to Fix Your WiFi Connection Problems - Lifewire
Wi-Fi Analyzer - Apps on Google Play


NEW QUESTION # 231
A drive failed on a server that was leveraging a RAID disk configuration. The server administrator would like to rebuild the array so it can withstand a potential multidrive failure in the future. Which of the following RAID configurations will the administrator MOST likely select?

  • A. 0
  • B. 1
  • C. 2
  • D. 3

Answer: A

Explanation:
Explanation
RAID stands for Redundant Array of Independent Disks, which is a technology that combines multiple disks into a logical unit to improve performance, reliability, or both. There are different types of RAID levels that use different methods of data distribution and redundancy.
RAID 0 is a level that stripes data across multiple disks without any redundancy. It offers the highest performance but no fault tolerance. If any disk fails, the entire array is lost.
RAID 1 is a level that mirrors data across two disks. It offers the lowest performance but the highest fault tolerance. It can survive the failure of one disk.
RAID 5 is a level that stripes data across multiple disks with parity information. It offers a balance between performance and fault tolerance. It can survive the failure of one disk, but not two or more disks.
RAID 10 is a level that combines RAID 1 and RAID 0. It creates a striped array of mirrored pairs. It offers high performance and high fault tolerance. It can survive the failure of one disk in each pair, or multiple disks in different pairs.
Therefore, if the server administrator wants to rebuild the array to withstand a potential multidrive failure in the future, RAID 10 is the most likely choice.


NEW QUESTION # 232
A technician installed a new router at a small office. After the Installation, the technician notices that all devices have a I69.254.x.x IP address. Printers and fileshares are still working, but PCs cannot access the Internet. Which of the following should the technician configure on the router to enable devices to connect to the internet?

  • A. SMB
  • B. DHCP
  • C. APIPA
  • D. DNS

Answer: B

Explanation:
To enable devices to connect to the internet after installing a new router at a small office, the technician should configure DHCP (Dynamic Host Configuration Protocol) on the router. DHCP is a network protocol that automatically assigns IP addresses and other network configuration parameters to devices on a network.
By configuring DHCP on the router, the technician can ensure that all devices on the network are assigned a valid IP address that allows them to connect to the internet.
If all devices have a 169.254.x.x IP address, this suggests that the router is not assigning IP addresses to the devices using DHCP (Dynamic Host Configuration Protocol). Configuring the DHCP settings on the router can enable the devices to receive IP addresses automatically and access the internet. References: CompTIA A+ Certification All-in-One Exam Guide, Tenth Edition, Chapter 14


NEW QUESTION # 233
A user purchased a retail router and would like to set up a private network. Which of the following network address ranges should the user configure?

  • A. 224.0.0.0 to 224.255.255.255
  • B. 239.0.0.0 to 239.255.255.255
  • C. 172.16.0.0 to 172.31.255.255
  • D. 170.50.0.0 to 170.50.255.255

Answer: C

Explanation:
For setting up a private network, the IP address range should be one that is reserved for private use. The range
172.16.0.0 to 172.31.255.255 falls within the set of IP addresses designated for private networks according to RFC 1918. This range is not routable on the public internet, making it ideal for a private network setup on a retail router.
References:
* CompTIA A+ Core 1 Exam Objectives Section 2.5: Given a scenario, install and configure basic wired/wireless SOHO networks.


NEW QUESTION # 234
......

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