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CompTIA A+ 220-1001 & 220-1002 CompTIA A+ 1001: Weak Spots #1 - General

Information Technology56 CardsCreated 3 months ago

This flashcard set targets common weak spots for the CompTIA A+ 220-1001 exam, starting with essential networking facts like 802.11 wireless standards, frequencies, and speeds. Perfect for sharpening your recall in high-yield areas.

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802.11a - Frequency & Speed?

5 GHz

54 Mbps

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Key Terms

Term
Definition

802.11a - Frequency & Speed?

5 GHz

54 Mbps

802.11b - Frequency & Speed?

2.4 GHz

11 Mbps

802.11g - Frequency & Speed?

2.4 GHz

54 Mbps

802.11n - Frequency & Speed?

WIFI4
2.4 GHz + 5 GHz
600 Mbps
MIMO = Multiple In/Multiple Out

802.11ac - Frequency & Speed?

WIFI5
5 GHz
1 Gbps
Improves MIMO Technology

ATX - Size?

12” x 9.6”

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CompTIA A+ 220-1001 & 220-1002 CompTIA A+ 1001: Weak Spots #1 - General
TermDefinition

802.11a - Frequency & Speed?

5 GHz

54 Mbps

802.11b - Frequency & Speed?

2.4 GHz

11 Mbps

802.11g - Frequency & Speed?

2.4 GHz

54 Mbps

802.11n - Frequency & Speed?

WIFI4
2.4 GHz + 5 GHz
600 Mbps
MIMO = Multiple In/Multiple Out

802.11ac - Frequency & Speed?

WIFI5
5 GHz
1 Gbps
Improves MIMO Technology

ATX - Size?

12” x 9.6”

MTX (Micro-ATX) - Size?

9.6” x 9.6”

MITX (Mini-ITX) - Size?

6.7” x 6.7”

Used mostly in Small Home Theater Systems, Point of Sale Systems

LCD - Lighting Type?

Liquid Crystal Display

Fluorescent Backlights

LED - Lighting Type?

Monitor Backlight Technology

Light Emitting Diodes

OLED - Lighting Type?

Does not NEED Backlight-Self Illuminating.

Thus, it’s Smaller/Thinner, but more expensive.

RAID0 - Method, Min # of Drives, Common Usage?

Stripping = SPEED
Requires min of 2 Drives.
Heavy Read Operations

  • If 1 Drive fails, all Data Lost.

+ High Performance Speed
- Data is LOST if one disk fails

RAID1 - Method, Min # of Drives, Common Usage?

Mirroring = REDUNDANCY
Requires atleast 2 Drives

  • Primary Purpose of RAID1 is Redundancy - Slows things down because you’re Mirroring/Writing the Data Twice.

+ Fault Tolerance, High Read Performance
- LAG for Write Ops, Reduced Storage by 50%

RAID5 - Method, Min # of Drives, Common Usage?

Stripping + Parity = SPEED + REDUNDANCY
Requires Minimum of 3 Drives.
Normal File Storage & App Servers

  • Stripping occurs with 2 of the 3 Drives, and the 3rd Drive does Parity.

  • If 1 Drive Fails, data can easily be recreated - Replace the Failed Drive and Rebuild the Array.

  • If more than 1 Drive Fails, you can’t rebuild the Array.

+ Speed and Fault Tolerance
- LAG for Write Ops, Reduced Storage by 33%

RAID10 - Method, Min # of Drives, Common Usage?

Stripping & Mirroring = HIGH SPEED + HIGH REDUNDANCY
Requires Minimum of 4 Drives
Highly Utilized Database Servers

  • 2 of the Drives are RAID1 and Mirrored to the other 2 RAID1 Drives

  • If you lose a Mirrored PAIR, you are in trouble.

  • You can lose 2 Drives as long as they aren’t in the same Mirrored Pair.

  • Includes Stripping across two drives for faster performance and Mirroring of the Stripped Array for Safety.

+ Write Performance and Strong Fault Tolerance
- Reduced Storage by 50%, Limited Scalability

RAID6 - Method, Min # of Drives, Common Usage?

Stripping + Double Parity
Requires 4 Drives Minimum
Large File Storage & App Servers

  • It’s like RAID5, Stripping with Parity, but instead of 1 Parity Drive you get 2 Parity Drives.

  • You can lose up to 2 Drives before Data Loss.

+ Extra Level of Redundancy, High Read Performance
- Low Write Performance, Reduced Storage by 40%

Virtualization Terms: The concept of creating an environment that Imitates full Hardware and Software without relying on the CPU, of one system onto another? Mimics the qualities and logic of one processor to run in another platform efficiently is _______?

Emulation

Emulator

Virtualization Terms: Known as a VMM (Virtual Machine Monitor), which is a type of Virtualization Software that supports the creation and management of VMs by separating a Computer’s Software from it’s Hardware is ______ ?

Hypervisors

Virtualization Terms: A complete model of various complex systems ___ ?

Simulation

VM Networking: ______ Network Connection type that will create a Switch that is usable only by the VMs. The VMs cannot use the Switch to Communicate with the Host or the Internet?

LocalHost
Private
Internal
External

Private

VM Networking: ______ are Network Connection types where the VM’s would be able to communicate across the Internet?

LocalHost
Private
Internal
External

External

VM Networking: ______ Network Connection type where the VMs can only communicate with itself?

LocalHost
Private
Internal
External

LocalHost

VM Networking: ______ Network Connection type where the VM’s are prevented from communicating across the Internet but are able to communicate with other VM’s on the Host and the Host itself?

LocalHost
Private
Internal
External

Internal

Cloud Types: Outsourcing Hardware, Software, Storage, Data Centers, Servers, and Network Space, also known as Platform Virtualization is provided by what Cloud Service?

PaaS

SaaS

DaaS

VDI

IaaS

Infrastructure as a Service (IaaS)

Cloud Types: Provides Hardware and Software Tools, fully configured systems to Rent that are setup for specific purposes?

PaaS

SaaS

DaaS

VDI

IaaS

Platform as a Service (PaaS)

Cloud Types: Applications distributed centrally hosted and licensed, also known as the Application Service Provider where Users can add new features or functionalities based on their use of the Application based on the agreement with the provider is what Cloud Service?

PaaS

SaaS

DaaS

VDI

IaaS

Software as a Service (SaaS)

Cloud Types: Provides full virtualized environments from within a Cloud-Based Service? (Select Two)

PaaS

SaaS

DaaS

VDI

IaaS

Desktop as a Service (DaaS) | Virtualized Desktop Infrastructure (VDI)

RAM: DDR3-800 is also known as _ ?

PC3-10600
PC3-8500
PC3-6400
PC3-12800

PC3-6400

RAM: DDR3-1066 is also known as _?

PC3-10600
PC3-8500
PC3-6400
PC3-12800

PC3-8500

RAM: DDR3-1333 is also known as _?

PC3-10600
PC3-8500
PC3-6400
PC3-12800

PC3-10600

RAM: DDR3-1600 is also known as _?

PC3-10600
PC3-8500
PC3-6400
PC3-12800

PC3-12800

Storage Media: Records information in Tracks and Sectors containing 512 bytes each?

Optical
Magnetic
Flash

Magnetic

Storage Media: Stores data in a continuous spiral?

Optical
Magnetic
Flash

Optical

Storage Media: Used on Memory Cards?

Optical
Magnetic
Flash

Flash

Storage Media: Records information in a Series of Lands and Pits?

Optical
Magnetic
Flash

Optical

Storage Media: Uses a Laser Light to read data?

Optical
Magnetic
Flash

Optical

Storage Media: Records information in concentric circles?

Optical
Magnetic
Flash

Optical

Storage Media: Information is recorded from the Center outward?

Optical
Magnetic
Flash

Optical

Storage Media: Stores data on double-sided platters?

Optical
Magnetic
Flash

Magnetic

Storage Media: Information is recorded from the outer edge inward?

Optical
Magnetic
Flash

Magnetic

Storage Media: Used in Solid State Drives?

Optical
Magnetic
Flash

Flash

DLP - Lighting Type?

Moving Mirrors

PBQ: Wireless Encryption Security Protocols - WEP?

IV
TKIP
PSK
AES

IV (Initialization Vector)

PBQ: Wireless Encryption Security Protocols - WPA/WPA2?

IV
TKIP
PSK
AES

TKIP (Temporal Key Integrity Protocol)

PBQ: Wireless Encryption Security Protocols - WPA?

IV
TKIP
PSK
AES

PSK (Pre-Shared Key)

PBQ: Wireless Encryption Security Protocols - WPA2?

IV
TKIP
PSK
AES

AES (Advanced Encryption Standard) | Strongest/Highest Level of Encryption on Wireless for A+ Exam

RAM: DDR4-1600 - Transfer Rate and PC4 Name?

12,800 MB/s -- PC4-12800
19,200 MB/s -- PC4-19200
21,333 MB/s -- PC4-21333
17,066 MB/s -- PC4-17000

12,800 MB/s | PC4-12,800

RAM: DDR4-2133 - Transfer Rate and PC4 Name?

12,800 MB/s -- PC4-12800
19,200 MB/s -- PC4-19200
21,333 MB/s -- PC4-21333
17,066 MB/s -- PC4-17000

17,066 MB/s | PC4-17000

RAM: DDR4-2400 - Transfer Rate and PC4 Name?

12,800 MB/s -- PC4-12800
19,200 MB/s -- PC4-19200
21,333 MB/s -- PC4-21333
17,066 MB/s -- PC4-17000

19,200 MB/s | PC4-19200

RAM: DDR4-2666 - Transfer Rate and PC4 Name?

12,800 MB/s -- PC4-12800
19,200 MB/s -- PC4-19200
21,333 MB/s -- PC4-21333
17,066 MB/s -- PC4-17000

21,333 MB/s | PC4-21333

Troubleshooting Theory: Step 6?

Document your Findings, Actions, Outcomes, Lessons Learned

Identify the Problem

Establish a Theory of Probable Cause (Question the Obvious first.)

Test the Theory to determine the Cause.

Establish a Plan of Action to Resolve the Problem and Implement the Solution.

Verify FULL System Functionality and, if applicable, Implement Preventative measures.

Document Findings, Actions, Outcomes - Lessons Learned

Troubleshooting Theory: Step 3?

Test the Theory to determine the Cause

  • If the Theory isn't Confirmed, Re-Establish a New Theory

  • Escalate the Issue when necessary.

Troubleshooting Theory: Step 1?

Identify the Problem

Talk to the User

Identify the Problem

Establish a Theory of Probable Cause (Question the Obvious first.)

Test the Theory to determine the Cause.

Establish a Plan of Action to Resolve the Problem and Implement the Solution.

Verify FULL System Functionality and, if applicable, Implement Preventative measures.

Document Findings, Actions, Outcomes - Lessons Learned

Troubleshooting Theory: Step 5?

Verify FULL System Functionality, and if applicable, implement Preventative Measures

Identify the Problem

Establish a Theory of Probable Cause (Question the Obvious first.)

Test the Theory to determine the Cause.

Establish a Plan of Action to Resolve the Problem and Implement the Solution.

Verify FULL System Functionality and, if applicable, Implement Preventative measures.

Document Findings, Actions, Outcomes - Lessons Learned

Troubleshooting Theory: Step 2?

Establish a Theory of Probable Cause

Question the Obvious FIRST

Identify the Problem

Establish a Theory of Probable Cause (Question the Obvious first.)

Test the Theory to determine the Cause.

Establish a Plan of Action to Resolve the Problem and Implement the Solution.

Verify FULL System Functionality and, if applicable, Implement Preventative measures.

Document Findings, Actions, Outcomes - Lessons Learned

Troubleshooting Theory: Step 4?

Establish a Plan of Action to Resolve the Problem and Implement the Solution.

Identify the Problem

Establish a Theory of Probable Cause (Question the Obvious first.)

Test the Theory to determine the Cause.

Establish a Plan of Action to Resolve the Problem and Implement the Solution.

Verify FULL System Functionality and, if applicable, Implement Preventative measures.

Document Findings, Actions, Outcomes - Lessons Learned