CompTIA 220-1101模擬対策問題: CompTIA A+ Certification Exam: Core 1 - Japancertいつでも無料ダウンロード

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CompTIA A+ Certification Exam: Core 1 認定 220-1101 試験問題 (Q144-Q149):

質問 # 144
A user's desktop computer is connected via an Ethernet cable and often drops the connection.
When the computer does connect, the network speeds are normal. No other network users on the same floor are reporting issues. The administrator verified that all authentication systems are working as intended and the Ethernet cable was replaced. Which of the following is the most likely cause of the issue?

A. Slow network speeds
B. 802.1X configuration
C. Limited connectivity
D. Port flapping

正解：D

解説：
Port flapping, also known as link flapping, is a network issue that causes a switch port's state to fluctuate between up and down within short periods of time. This instability affects network connectivity and performance. Port flapping can be caused by various factors, such as faulty cables, hardware issues, configuration issues, or other network issues12. In this scenario, the user's desktop computer is connected via an Ethernet cable and often drops the connection, while no other network users on the same floor are reporting issues. The administrator verified that all authentication systems are working as intended and the Ethernet cable was replaced.

質問 # 145
Which of the following models is an example of metered utilization?

A. Multitenant
B. Pay-as-you-go
C. Subscription-based
D. Reserved instance

正解：B

解説：
Explanation
Metered utilization is a pricing model for cloud computing services, where the customer pays only for the amount of resources that are consumed, such as CPU time, memory, storage, bandwidth, etc. The customer is billed based on the actual usage of the resources, rather than a fixed or upfront fee. Metered utilization is also known as usage-based pricing or pay-per-use12.
Pay-as-you-go is an example of metered utilization, where the customer pays for the cloud resources on demand, without any long-term commitment or contract. The customer can scale up or down the resources as needed, and only pay for what is used. Pay-as-you-go is a flexible and cost-effective option for customers who have unpredictable or variable workloads, or who want to try out new services or features12.
The other options are not examples of metered utilization. Reserved instance is a pricing model where the customer pays a discounted rate for a fixed amount of cloud resources for a specified period of time, such as one or three years. The customer can reserve the resources in advance, and benefit from lower costs and guaranteed availability. Reserved instance is suitable for customers who have predictable or steady workloads, or who want to optimize their budget12.
Subscription-based is a pricing model where the customer pays a fixed fee for a set of cloud services or features for a certain period of time, such as monthly or annually. The customer can access the services or features as much as needed, without worrying about the usage or consumption of the resources. Subscription-based is suitable for customers who want to have a consistent and predictable cost, or who want to access premium or exclusive services or features12.
Multitenant is not a pricing model, but a cloud architecture where multiple customers share the same physical or virtual resources, such as servers, databases, applications, etc. The resources are isolated and secured for each customer, and the customers can benefit from lower costs, higher scalability, and faster updates. Multitenant is a common characteristic of public cloud services, where the cloud provider manages and maintains the resources for the customers12.
References:
CompTIA A+ Core 1 (220-1101) Certification Study Guide, Chapter 4: Cloud Computing and Virtualization, Section 4.2: Cloud Computing Concepts, Page 261 CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) Exam Cram, Chapter 6: Cloud Computing and Virtualization, Section 6.2: Cloud Computing Concepts, Page 241

質問 # 146
A technician is attempting to log in to a local company portal. When the technician types the URL into the address bar, the browser is unable to resolve and display the web page. The technician tries at another workstation, and the result is the same. Other web pages are not having any issues. Which of the following should the technician check first?

A. DNS entries
B. Static IP addresses
C. DHCP reservations
D. Default gateway

正解：A

解説：
The technician is unable to access the company portal website, but other websites work fine. This suggests an issue with resolving the specific URL of the company portal, which is a function of DNS. Here's why other options are not the most likely cause:
DHCP reservations: This is not relevant as the issue persists even when the technician tries a different workstation, indicating a problem beyond individual device configuration. Static IP addresses: Similar to DHCP reservations, static IPs are not likely the cause as both affected workstations are experiencing the issue.
Default gateway: While the default gateway is necessary for internet access, other websites are working, making it less likely to be the root cause.

質問 # 147
Which of the following is used to define a range of IP addresses available to assign using DHCP?

A. Reservation
B. Scope
C. Address
D. Lease

正解：B

解説：
Explanation
A scope is a term used to define a range of IP addresses available to assign using DHCP. DHCP stands for Dynamic Host Configuration Protocol, and it is a protocol that automatically assigns IP addresses and other network configuration parameters to devices on a network. A scope defines the start and end IP addresses, as well as other options, such as subnet mask, default gateway, and DNS servers.

質問 # 148
An organization is looking to upgrade the processing ability for its computers. Most users report that whenever multiple applications are being utilized, the system's response time slows down drastically. When only one application is open, the response time is acceptable. Which of the following should be upgraded FIRST?

A. CPU
B. SSD
C. RAM
D. HDD

正解：D

質問 # 149
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220-1101日本語関連対策: https://www.japancert.com/220-1101.html

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CompTIA 220-1101模擬対策問題: CompTIA A+ Certification Exam: Core 1 - Japancertいつでも無料ダウンロード

実用的な220-1101模擬対策問題 & 合格スムーズ220-1101日本語関連対策 | 検証する220-1101対応内容

CompTIA A+ Certification Exam: Core 1 認定 220-1101 試験問題 (Q144-Q149):

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