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CompTIA A+ Certification Exam: Core 1 Sample Questions (Q202-Q207):

NEW QUESTION # 202
A user receives the following error when trying to reboot a computer:

Which of the following is the MOST likely cause of this error message?

A. Incorrect storage device driver
B. Faulty RAID controller
C. Failed hard drive
D. Corrupted bootloader

Answer: C

Explanation:
The error message "Reboot and Select Proper Boot Device" indicates that the computer cannot find the boot device that contains the operating system. This can happen if the hard drive that stores the operating system is damaged or failed, and the BIOS cannot detect it or read from it. A failed hard drive can also cause other symptoms such as clicking noises, corrupted files, or slow performance.

NEW QUESTION # 203
Which of the following explains how using a cloud infrastructure can provide rapid elasticity?

A. High availability of services can be provided
B. Shared resources can reduce overhead.
C. Systems can be provisioned according to demand.
D. Customers can limit the use of a resource

Answer: C

Explanation:
Systems can be provisioned according to demand. This is the essence of rapid elasticity, which is one of the essential characteristics of cloud computing. Rapid elasticity means that cloud services can be scaled up or down quickly and automatically, depending on the changing needs of the customers. This provides flexibility, efficiency, and cost-effectiveness for both the customers and the providers. According to the CompTIA Core1 objectives, one of the benefits of cloud computing is rapid elasticity. A research paper on cloud elasticity also defines it as the ability to dynamically adjust the amount of resources allocated to a service in response to its workload variation.

NEW QUESTION # 204
A technician is troubleshooting a projector that will not display any Images. The technician has verified the computer output and cable are providing a good video signal. Which of the following should the technician do NEXT?

A. Clean the fans.
B. Calibrate the image.
C. Test the output resolution.
D. Replace the bulb.

Answer: C

NEW QUESTION # 205
A customer has contacted you about building two new desktops. The first desktop will be a gaming workstation. The customer requirements include:
Playing the newest games at a high frame rate
Fast game load times
Enough storage to have several games installed at once
High-end audio
No concern about cost
Running the current Windows OS
The second workstation will be a family workstation. The requirements include:
Capability for word processing, videoconferencing, and basic web surfing Minimal cost, as long as it meets the requirements Running the current Windows OS

Answer:

Explanation:

Explanation

NEW QUESTION # 206
Which of the following DNS records is used to look up the IP address assigned to a domain name?

A. A DNS record is a data entry in a DNS server that maps a domain name to a specific value
B. MX
C. NS
D. SPF

Answer: A

Explanation:
A DNS record is a data entry in a DNS server that maps a domain name to a specific value, such as an IP address, a mail server, a name server, or a text string. There are different types of DNS records for different purposes, and each type has a specific format and syntax12.
The A record, also known as the address record, is the most common type of DNS record, and it is used to look up the IP address assigned to a domain name. The A record maps a domain name to an IPv4 address, which is a 32-bit numerical value that identifies a device on the internet. For example, the A record for www.
google.com is 172.217.14.20612.
The other options are not correct because they are not used to look up the IP address assigned to a domain name. The MX record, also known as the mail exchange record, is used to specify the mail servers that handle the email for a domain name. The MX record maps a domain name to a priority value and a host name of a mail server. For example, the MX record for gmail.com is 10 alt1.gmail-smtp-in.l.google.com12.
The NS record, also known as the name server record, is used to delegate a domain name to a set of authoritative name servers. The NS record maps a domain name to a host name of a name server that can provide authoritative answers for the domain name and its subdomains. For example, the NS record for example.com is ns1.example.com12.
The SPF record, also known as the sender policy framework record, is used to prevent email spoofing and spamming by validating the sender's identity. The SPF record maps a domain name to a text string that specifies the authorized mail servers and IP addresses that can send email on behalf of the domain name. For example, the SPF record for microsoft.com is v=spf1 include:spf.protection.outlook.com -all12.
References:
DNS Configuration - CompTIA A+ 220-1101 - 2.6
CompTIA A+ Certification Core 1 (220-1101) [Video] - Packt Subscription, Section 2: Networking, Video
2.6: DNS Configuration
CompTIA A+ Certification Core 1 (220-1101) - GitHub, Slide Handout PDFs 1101, Chapter 2: Networking, Slide 2.6: DNS Configuration

NEW QUESTION # 207
......

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