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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Hardware | 25% | - Peripherals & storage devices - Hardware maintenance & upgrades - PC components, installation & configuration - Custom PC builds & specialized hardware - Power supply & cooling systems |
| Topic 2: Virtualization and Cloud Computing | 11% | - Virtual & cloud security - Cloud service models & deployment types - Cloud infrastructure & resource management - Virtualization concepts & hypervisors |
| Topic 3: Mobile Devices | 13% | - Mobile device security & troubleshooting - Synchronization & data management - Network connectivity & configuration - Hardware components & replacement |
| Topic 4: Hardware and Network Troubleshooting | 28% | - Troubleshooting methodology - Component failure diagnosis & repair - Network issues & resolution - Hardware problems & solutions |
| Topic 5: Networking | 23% | - Network connectivity & troubleshooting - Network types, topologies & cables - IP addressing & protocols - Network devices & configuration - Wireless networking standards & security |
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NEW QUESTION # 384
A technician needs to configure an MX record. Which of the following will the technician use?
Answer: B
Explanation:
An MX, or Mail Exchanger, record is a type of DNS resource record. It identifies the mail server responsible for accepting email for a particular domain. Consequently, an MX record is created or modified in the domain's DNS zone, which is hosted on a DNS server.
Although the MX record points to a mail server, the record itself is configured through DNS. The mail server is the destination identified by the record, not the service in which the DNS record is stored.
A proxy server intermediates network requests, commonly for filtering, caching, or privacy.
A mail server sends, receives, and stores email, but DNS tells other systems how to locate it.
A print server manages printers and print jobs.
CompTIA objective 2.4 specifically includes DNS record types such as A, AAAA, CNAME, MX, and TXT. Microsoft also defines an MX record as a DNS resource record that identifies a domain's mail server.
NEW QUESTION # 385
A user's computer can connect to internal network resources but cannot access websites on the internet. Other users on the same network do not have this issue. Which of the following should a technician do first to troubleshoot the issue?
Answer: A
Explanation:
If a computer can access internal network resources but cannot reach external websites, the most likely issue is a DNS configuration problem. According to CompTIA Core 1 (220-1201) networking troubleshooting methodology, DNS should be one of the first items checked when internet access fails but local connectivity remains intact.
DNS translates human-readable domain names into IP addresses. If DNS settings are incorrect, missing, or pointing to an invalid server, the computer will be unable to resolve website names even though it has network connectivity. Since other users on the same network can access the internet, the issue is isolated to the individual workstation.
Replacing the network cable is unnecessary because internal connectivity is already working. Restarting the DHCP server would impact all users, not just one. Adjusting firewall rules on the router would affect the entire network rather than a single computer.
CompTIA emphasizes starting with least disruptive and most likely causes when troubleshooting. Verifying DNS settings aligns with this best-practice approach.
References:CompTIA A+ Core 1 (220-1201) Official Study Guide - Network Troubleshooting and DNS
NEW QUESTION # 386
Which of the following is an isolated virtual machine?
Answer: B
Explanation:
A sandbox is an isolated virtual environment, often used for testing code or software safely without affecting the host system.
From CompTIA A+ 220-1101 Official Study Guide, Objective 3.7 - Virtualization:
"A sandbox provides an isolated environment, often implemented as a virtual machine, to safely test applications or code." Verified Source:
CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 3: Virtualization CompTIA Exam Objectives 220-1101, Domain 3.7
NEW QUESTION # 387
Which of the following is used to install a network device when electrical outlets are unavailable?
Answer: A
Explanation:
Power over Ethernet (PoE) is specifically designed to power network devices without requiring a separate electrical outlet. According to CompTIA Core 1 (220-1201) networking hardware objectives, PoE allows both data and electrical power to be delivered over a single Ethernet cable from a PoE- capable switch or injector to the connected device.
PoE is commonly used for devices such as wireless access points, IP cameras, VoIP phones, and access control systems, especially in locations where installing electrical outlets is difficult, expensive, or impractical. This makes PoE an ideal solution for flexible and scalable network deployments.
WWAN (Wireless Wide Area Network) provides cellular-based network connectivity but does not supply power to devices. An ONT (Optical Network Terminal) converts fiber signals to Ethernet and requires its own power source. NFC (Near Field Communication) is a short-range wireless technology used for authentication and data exchange, not for powering network devices.
CompTIA highlights PoE as a key networking technology that simplifies installations by reducing cabling requirements and eliminating the need for local power outlets.
NEW QUESTION # 388
A shared printer frequently jams, especially when printing double-sided documents. The paper size is standard office A4. The printer is used regularly throughout the day. Which of the following actions should the technician take to address the paper jamming issue?
Answer: D
Explanation:
The correct answer is A. Clean the feed rollers.
According to CompTIA A+ Core 1 220-1201 objectives under Printers:
* Frequent paper jams, particularly in high-use shared printers, are commonly caused by dirty or worn feed rollers.
* Cleaning the feed rollers removes dust, paper debris, and toner residue that can prevent smooth paper feeding, especially when printing double-sided documents.
* This is a standard preventive maintenance procedure that improves reliability and extends the printer's operational life.
Why the other options are incorrect:
* B. Use a different paper weight: A4 standard paper is appropriate; changing paper weight is unnecessary unless the paper is damaged or incompatible.
* C. Replace the fuser unit: Fuser problems generally cause smudging or incomplete fusing, not frequent paper jams.
* D. Change the toner cartridge: Toner issues affect print quality (light or streaky prints), not paper feeding or jamming.
References:
CompTIA A+ Core 1 (220-1201) Exam Objectives - Printers: "Given a scenario, troubleshoot common printer problems including paper jams, feed issues, and maintenance tasks." Mike Meyers' CompTIA A+ Certification Guide, 13th Edition, Chapter on Printer Troubleshooting and Maintenance.
NEW QUESTION # 389
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