CompTIA A+ 220-1101 (Core1)

CompTIA A+ is the industry standard for establishing a career in IT.

CompTIA A+ certified professionals are proven problem solvers. They support today’s core technologies from security to networking to virtualization and more. CompTIA A+ is the industry standard for launching IT careers into today’s digital world.

CompTIA A+ is the only industry recognized credential with performance testing to prove pros can think on their feet to perform critical IT support tasks. It is trusted by employers around the world to identify the go-to person in end point management & technical support roles. CompTIA A+ appears in more tech support job listings than any other IT credential.

The CompTIA A+ Core Series requires candidates to pass two exams: Core 1 (220-1101) and Core 2 (220-1102) covering the following new content, emphasizing the technologies and skills IT pros need to support a hybrid workforce.

Increased reliance on SaaS applications for remote work
More on troubleshooting and how to remotely diagnose and correct common software, hardware, or connectivity problems
Changing core technologies from cloud virtualization and IoT device security to data management and scripting
Multiple operating systems now encountered by technicians on a regular basis, including the major systems, their use cases, and how to keep them running properly
Reflects the changing nature of the job role, where many tasks are sent to specialized providers as certified personnel need to assess whether it’s best to fix something on site, or to save time and money by sending proprietary technologies directly to vendors

9 skills that you master and validate with CompTIA A+ artboard-6

HARDWARE
Identifying, using, and connecting hardware components and devices, including the broad knowledge about different devices that is now necessary to support the remote workforce
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OPERATING SYSTEMS
Install and support Windows OS including command line & client support. System configuration imaging and troubleshooting for Mac OS, Chrome OS, Android and Linux OS.
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SOFTWARE TROUBLESHOOTING
Troubleshoot PC and mobile device issues including common OS, malware and security issues.
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NETWORKING
Explain types of networks and connections including TCP/IP, WIFI and SOHO
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TROUBLESHOOTING
Troubleshoot real-world device and network issues quickly and efficiently
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SECURITY
Identify and protect against security vulnerabilities for devices and their network connections
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MOBILE DEVICES
Install & configure laptops and other mobile devices and support applications to ensure connectivity for end- users
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VIRTUALIZATION & CLOUD COMPUTING
Compare & contrast cloud computing concepts & set up client-side virtualization
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OPERATIONAL PROCEDURES
Follow best practices for safety, environmental impacts, and communication and professionalism

Jobs that use A+

Help Desk Tech
Desktop Support Specialist
Field Service Technician
Help Desk Technician
Associate Network Engineer
System Support Technician
Junior Systems Administrator

CompTIA A+ 220-1101 (Core 1) and 220-1102 (Core 2)

Candidates must complete both 1101 and 1102 to earn certification. Exams cannot be combined across the series.
Launch Date : April 2022
Exam Description : CompTIA A+ 220-1101 covers mobile devices, networking technology, hardware, virtualization and cloud computing.
Number of Questions : Maximum of 90 questions per exam
Length of Test : 90 Minutes per exam
Languages : English at launch. German, Japanese, Portuguese, Thai and Spanish English at launch. German, Japanese, Portuguese, Thai and Spanish
Retirement : TBD – Usually three years after launch
Testing Provider: Pearson VUE: Testing Centers : Online Testing

We cover all five domains of the 220-1101 exam, including:
1.0 Mobile Devices (15%)
2.0 Networking (20%)
3.0 Hardware (25%)
4.0 Virtualization and Cloud Computing (11%)
5.0 Hardware and Network Troubleshooting (29%)

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Question 1:
A customer called the service desk and complained that they could not reach the internet on their computer. You ask the customer to open their command prompt, type in ipconfig, and read you the IP address. The customer reads the IP as 169.254.12.45. What is the root cause of the customer’s issue based on what you know so far?

A. Their workstation cannot reach the DNS server
B. Their workstation cannot reach the default gateway
C. Their workstation cannot reach the web server
D. Their workstation cannot reach the DHCP server

Correct Answer: D

Explanation
OBJ-5.7: Since the customer’s IP address is 169.254.12.45, it is an APIPA address. Since the workstation has an APIPA address, it means the DHCP server was unreachable. Automatic Private IP Addressing (APIPA) is a feature of Windows-based operating systems that enables a computer to automatically assign itself an IP address when there is no Dynamic Host Configuration Protocol (DHCP) server available to perform that function. APIPA serves as a DHCP server failover mechanism and makes it easier to configure and support small local area networks (LANs). If no DHCP server is currently available, either because the server is temporarily down or because none exists on the network, the computer selects an IP address from a range of addresses (from 169.254.0.0 – 169.254.255.255) reserved for that purpose.

Question 2:
Your company is currently using a 5 GHz wireless security system, so your boss has asked you to install a 2.4 GHz wireless network to use for the company’s computer network to prevent interference. Which of the following can NOT be installed to provide a 2.4 GHz wireless network?

A. 802.11g
B. 802.11b
C. 802.11ac
D. 802.11n

Correct Answer: C

Explanation
OBJ-2.3: Wireless networks are configured to use either 2.4 GHz or 5.0 GHz frequencies, depending on the network type. 802.11a and 802.11ac both utilize a 5.0 GHz frequency for their communications. 802.11b and 802.11g both utilize a 2.4 GHz frequency for their communications. 802.11n and 802.11ax utilize either 2.4 GHz, 5.0 GHz, or both, depending on the Wi-Fi device’s manufacturer. The 802.11b (Wireless B) standard utilizes a 2.4 GHz frequency to provide wireless networking at speeds up to 11 Mbps. The 802.11g (Wireless G) standard utilizes a 2.4 GHz frequency to provide wireless networking at speeds up to 54 Mbps. The 802.11n (Wireless N) standard utilizes a 2.4 GHz frequency to provide wireless networking at speeds up to 108 Mbps or a 5.0 GHz frequency to provide wireless networking at speeds up to 600 Mbps. Wireless N supports the use of multiple-input-multiple-output (MIMO) technology to use multiple antennas to transmit and receive data at higher speeds. Wireless N supports channel bonding by combining two 20 MHz channels into a single 40 MHz channel
to provide additional bandwidth. The 802.11ac (Wireless AC or Wi-Fi 5) standard utilizes a 5 GHz frequency to provide wireless networking at theoretical speeds up to 5.5 Gbps. Wireless AC uses channel bonding to create a single channel of up to 160 MHz to provide additional bandwidth. Wireless AC uses multi-user multiple-input-

Question 3:
Which of the following resources is used by virtual machines to communicate with other virtual machines on the same network but prevents them from communicating with resources on the internet?

A. DNS
B. Virtual internal network
C. Virtual external network
D. Network address translation

Correct Answer: B

Explanation
OBJ-4.2: Most virtual machines running on a workstation will have their own virtual internal network to communicate within the virtual environment while preventing them from communicating with the outside world. You may also configure a shared network address for the virtual machine to have the same IP address as the physical host that it is running on. This usually relies on network address translation to communicate from the virtual environment (inside) to the physical world (outside/internet). If you are communicating internally in the virtual network, there is no need for DNS or an external network.

Question 4:
A technician needs to upgrade the RAM in a database server. The server’s memory must support maintaining the highest levels of integrity. Which of the following type of RAM should the technician install?

A. ECC
B. Non-Parity
C. SODIMM
D. VRAM

Correct Answer: A

Explanation
OBJ-3.2: Error checking and correcting or error correcting code (ECC) is a type of system memory that has built-in error correction security. ECC is more expensive than normal memory and requires support from the motherboard. ECC is commonly used in production servers and not in standard desktops or laptops. Non-parity memory is a type of system memory that does not perform error checking except when conducting the initial startup memory count. VRAM (video RAM) refers to any type of random access memory (RAM) specifically used to store image data for a computer display. A small outline dual inline memory module (SODIMM) can be purchased in various types and sizes to fit any laptop, router, or other small form factor computing device.

Question 5:
You just replaced a failed motherboard in a corporate workstation and returned it to service. About an hour later, the customer complained that the workstation is randomly shutting down and rebooting itself. You suspect the memory module may be corrupt, and you perform a memory test, but the memory passes all of your tests. Which of the following should you attempt NEXT in troubleshooting this problem?

A. Remove and reseat the RAM
B. Verify the case fans are clean and properly connected
C. Reset the BIOS
D. Replace the RAM with ECC modules

Correct Answer: B

Explanation
OBJ-5.2: If a workstation overheats, it will shut down or reboot itself to protect the processor. This can occur if the case fans are clogged with dust or become unplugged. By checking and reconnecting the case fans, the technician can rule out an overheating issue causing this problem. Since the memory was already tested successfully, it does not need to be removed and reseated, or replaced with ECC modules. The BIOS is not the issue since the computer booted up into Windows successfully before rebooting.