CompTIA A+ Core 1 Exam Prep
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Questions and Answers

What is the main purpose of clock speed in a CPU?

  • It indicates how fast a CPU can process data. (correct)
  • It measures the total storage capacity of a CPU.
  • It determines the number of cores in a CPU.
  • It defines the thermal output of the CPU.

What does a 64-bit CPU allow in terms of memory compared to a 32-bit CPU?

  • It offers faster processing for 32-bit software.
  • It can address up to 16 Terabytes of RAM. (correct)
  • It can address up to 4 Gigabytes of RAM.
  • It is limited to using 32-bit operating systems.

Which statement best describes BGA sockets used in laptops?

  • They are exclusively used for desktop CPUs from Intel and AMD.
  • They support easy upgrades for additional RAM.
  • They utilize solder balls to permanently attach the CPU to the board. (correct)
  • They have removable connectors for easy CPU replacement.

What is Hyper-Threading in relation to CPU technology?

<p>An Intel technology that enables a core to process multiple instructions simultaneously. (C)</p> Signup and view all the answers

What purpose do the USB pin headers serve on a motherboard?

<p>To provide a connection to external USB ports (B)</p> Signup and view all the answers

Which of the following operating systems can be run on both 32-bit and 64-bit architectures?

<p>Linux (C)</p> Signup and view all the answers

Which component is responsible for initiating the boot process in a computer system?

<p>BIOS/UEFI (B)</p> Signup and view all the answers

What functionality does Secure Boot provide in UEFI?

<p>Blocks untrusted code from running at boot (C)</p> Signup and view all the answers

What type of memory is used to store the BIOS/UEFI configuration?

<p>EEPROM (A)</p> Signup and view all the answers

Which power connector is typically used for CPU power in modern motherboards?

<p>ATX12v Power Connector (D)</p> Signup and view all the answers

What is the primary function of chassis fans in a computer case?

<p>To pull in cool air and expel hot air (B)</p> Signup and view all the answers

What type of connector is commonly used for CPU fans?

<p>3-pin or 4-pin connector (D)</p> Signup and view all the answers

What is the role of the CMOS in relation to the BIOS/UEFI?

<p>Stores configuration changes to BIOS/UEFI (A)</p> Signup and view all the answers

What is the primary function of a Site-to-Site VPN?

<p>Connect an entire network to another network over the internet (B)</p> Signup and view all the answers

Which layer of Software-Defined Networking (SDN) is responsible for communicating instructions to network devices?

<p>Control Layer (B)</p> Signup and view all the answers

What does the exclusion range in DHCP indicate?

<p>A range of addresses the server cannot assign (B)</p> Signup and view all the answers

What is a benefit of using IP reservations in DHCP?

<p>Ensure a device always receives the same IP address (D)</p> Signup and view all the answers

In the 4-step DHCP process, what message is sent from the client to the server during the Request phase?

<p>Request (B)</p> Signup and view all the answers

Which interface in SDN is used for communication between the controller and network devices?

<p>Southbound Interface (A)</p> Signup and view all the answers

What is an example of an application that can operate within the Application Layer of SDN?

<p>Proxy servers (D)</p> Signup and view all the answers

What defines the duration for which an IP address is assigned to a host in DHCP?

<p>Lease time (D)</p> Signup and view all the answers

What is the primary purpose of RAM in a computer?

<p>To provide temporary data access (A)</p> Signup and view all the answers

What type of memory retains data even when the power is off?

<p>SSD (B)</p> Signup and view all the answers

What function does the motherboard serve in a computer system?

<p>Connects all hardware components and provides power (C)</p> Signup and view all the answers

Which cooling method is most commonly used in computers?

<p>Air cooling using fans (B)</p> Signup and view all the answers

What is the primary role of a computer's PSU?

<p>To convert and supply power at different voltages (D)</p> Signup and view all the answers

How does the chipset of a motherboard impact system capabilities?

<p>Defines supported hardware features and connections (B)</p> Signup and view all the answers

Which of the following is NOT considered an input device?

<p>Monitor (C)</p> Signup and view all the answers

What percentage of the Core 1 exam focuses on Mobile Devices?

<p>15% (D)</p> Signup and view all the answers

What is the passing score required for the Core 2 exam?

<p>700 (B)</p> Signup and view all the answers

Which computer type is designed for portability and convenience?

<p>Laptop (A)</p> Signup and view all the answers

What is the function of thermal compounds in passive cooling?

<p>To fill microscopic imperfections and conduct heat away from the CPU (C)</p> Signup and view all the answers

Which cooling technique utilizes moving parts?

<p>Active cooling (D)</p> Signup and view all the answers

What is a key consideration when using an all-in-one liquid cooler?

<p>They are recommended mainly for gaming or overclocking (B)</p> Signup and view all the answers

What should be done before installing a heat sink?

<p>Always apply thermal compound on the CPU (C)</p> Signup and view all the answers

How do case fans contribute to system cooling?

<p>Intake fans pull in cool air and exhaust fans push out hot air (C)</p> Signup and view all the answers

What is true about thermal pads compared to thermal compounds?

<p>Thermal pads do not need to be replaced frequently (D)</p> Signup and view all the answers

What is a potential risk of liquid cooling systems?

<p>They may leak and cause damage (B)</p> Signup and view all the answers

Which calculation accurately represents CPU frequency?

<p>CPU base clock x clock multiplier (B)</p> Signup and view all the answers

Flashcards

Core 1 Exam (220-1101)

Focuses on hardware topics, requires a passing score of 675.

Core 2 Exam (220-1102)

Centers on software topics, requires a passing score of 700.

Exam time limit

Each CompTIA A+ exam lasts 90 minutes.

Mobile Devices domain

Accounts for 15% of Core 1 exam material.

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Networking domain

Covers 20% of the Core 1 exam topics.

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RAM

Volatile memory that loses data when powered off.

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HDD

Slower traditional storage device.

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SSD

Faster, non-volatile storage device.

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Power Supply

Converts AC to DC, providing power to components.

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Air Cooling

Common cooling method using fans.

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Liquid Cooling

Effective cooling using liquids for heat transfer.

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CPU

Central Processing Unit, the 'brains' of the computer.

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Motherboard

Main circuit board, connects all components.

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Chipset

Determines CPU compatibility and specifications.

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BIOS/UEFI

Manages boot process and hardware features.

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Clock Speed

Measure of a CPU's performance, in GHz.

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32-bit vs 64-bit

64-bit systems can utilize more RAM than 32-bit systems.

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Multithreading

Enhanced processing capability allowing multiple threads.

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Passive Cooling

Cooling without moving parts, like heat sinks.

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Active Cooling

Cooling involving fans for airflow management.

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DHCP

Protocol that assigns IP configurations to devices.

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DHCP Process

Steps include Discover, Offer, Request, Acknowledge.

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Input Devices

Hardware used to input data, like keyboard and mouse.

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Output Devices

Hardware that outputs data, like monitors and printers.

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Ports

Connectors on the motherboard for external devices.

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Expansion Cards

Add additional capabilities beyond the motherboard.

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Form Factor

Determines the size of the motherboard.

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Network Services

Services like DHCP that manage network configurations.

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Study Notes

CompTIA A+ Exam Overview

  • Core 1 Exam (220-1101): Focus on hardware, passing score = 675 (75%), cost = $253 in the USA.
  • Core 2 Exam (220-1102): Focus on software, passing score = 700 (78%), cost = $253 in the USA.
  • Each exam has a 90-minute time limit and up to 90 questions in formats including multiple choice, drag & drop, and performance-based.

Core Domains

  • Core 1 Domains:
    • Mobile Devices: 15%
    • Networking: 20%
    • Hardware: 25%
    • Virtualization & Cloud Computing: 11%
    • Hardware and Network Troubleshooting: 29%
  • Core 2 Domains:
    • Operating Systems: 31%
    • Security: 25%
    • Software Troubleshooting: 22%
    • Operational Procedures: 22%

Computer Types

  • Desktop: Tower, Mini PC, All-in-One
  • Mobile: Laptop, Desktop Replacement, Ultra Portable, Tablet, Smart Phone, Thin Client, Netbook, IoT Device

Memory & Storage

  • RAM (Random Access Memory):
    • Fast access, volatile memory, data lost when power off.
  • Storage Options:
    • HDD (Hard Disk Drive): Traditional, slower.
    • SSD (Solid State Drive): Newer, faster, non-volatile.

Power Supply & Cooling

  • Power Supply:
    • Internal for desktops, external for laptops, converts AC to DC.
  • Cooling Methods:
    • Air Cooling: Most common, uses fans.
    • Liquid Cooling: For specialized applications, effective but more complex.

CPU and Motherboard

  • CPU (Central Processing Unit):
    • "Brains" of the computer, mounted on the motherboard, requires a heat sink and fan for cooling.
  • Motherboard:
    • Connects all components, provides power to CPU and RAM, facilitates data communication.

Ports and Expansion

  • Ports integrated on the motherboard for audio, video, network connections, and USB.
  • Expansion Cards:
    • Provide additional ports and capabilities beyond what the motherboard offers.

Input and Output Devices

  • Input Devices: Keyboard, mouse, trackball, touchpad, touchscreen.
  • Output Devices: Monitor, speakers, printers, network connections.

Motherboard Components

  • Chipset: Defines CPU compatibility, RAM specifications, port types, and storage capabilities.
  • Form Factor: Determines size but not performance.
  • Connectors and Pin Headers: Include USB, power, and fan connectors.

BIOS/UEFI

  • BIOS/UEFI initializes boot process and manages hardware features.
  • ROM and EEPROM store BIOS/UEFI, allowing for updates to improve compatibility and security.
  • UEFI features include Secure Boot and improved startup times.

CPU Technology

  • Clock Speed: Measure of performance, faster processors are rated in GHz.
  • 32-bit vs 64-bit:
    • 64-bit systems can utilize more RAM (16 TB vs 4 GB).
  • Multithreading: Enhanced processing capabilities, Hyper-Threading for Intel CPUs.

Cooling Methods

  • Passive Cooling: Uses no moving parts (e.g., heat sinks).
  • Active Cooling: Uses fans, both CPU and case fans for managing airflow.
  • Liquid Cooling: Uses liquids for heat transfer, requires careful installation and maintenance.

Network Services: DHCP

  • DHCP assigns IP configurations, defines scopes and leases.
  • Key DHCP Process Steps:
    • Discover Broadcast
    • Offer Unicast
    • Request Broadcast
    • Acknowledge UniCast

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Related Documents

CompTIA A+ Prep Course 4.pdf

Description

Prepare for the CompTIA A+ Core 1 Exam (220-1101) with this comprehensive quiz. Featuring multiple-choice, drag & drop, and performance-based questions, it tests your knowledge across various domains. Aim for a passing score of 675 or higher to succeed.

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