Other Important A+ topics Flashcards
What is a PSU?
- Power Supply Unit
What is common voltages of PSU?
- 3.3v, 5.0v, and 12.0v
What is NVMe?
- Non-Volatile Memory Express
- A protocol that allows solid-state drives (SSDs) to communicate with computers. NVMe SSDs are faster and more responsive than traditional hard disk drives.
What bus lanes on a motherboard does NVMe uses?
And how is it compared to ther bus lanes?
- PCIe lane
- Fastest of all interfaces (PATA, SATA, SCSI, NVMe)
- PATA is slowest
- SATA and SCSI fall in between NVMe and PATA
What is a HDD?
- Hard Disk Drive - Magnetic disk drive
- High Capacity, Low Cost Device, Low Performance
What is a SSD?
- Solid State Drive
- Low capacity in comparison to magnetic drive, High Device Cost, High Performance
What data transfer rate does SATA 1.0, 2.0, 3.0 and 3.2 use?
It has a max of 1 meter cable length
- 1.0 -> 1.5 Gbps data transfer rate
- 2.0 -> 3.0 Gbps data transfer rate
- 3.0 -> 6.0 Gbps data transfer rate
- 3.2 -> 16.0 Gbps data transfer rate
What are the 6 steps of COMPTia Troubleshooting Methodology?
- Identify the problem
- Establish a theory of probable cause
- Test the theory to determine the cause
- Establish a plan of action to resolve the problem and identify potential effects
- Implement the solution or escalate as necessary
- Verify full system functionality and, if applicable, implement preventive measures
- Document findings, actions, outcomes and lessons learned
What is RG-59?
- Coaxial cabling
- Short distance cable runs
- Used for analog video and CCTV installations
What is RG-6?
- Coaxial cabling
- Long distance cable runs
- Used for cable television, satellite television, & cable modem
What is F-Type?
- Coaxial cabling
- Copper cabling
- Has screw on locking mechanism
- use for analog video, CCTV, Cable TV, Satellite TV, and Cable Modem
What type of battery does laptop uses?
- Lithium-Ion & Lithium-ion Polymer
What is PRL?
- Preferred Roaming List
- it’s a database that helps a mobile device connect to cell towers when roaming.
What is MDM?
- Mobile Device Management
- a software solution that allows organizations to manage, secure, and monitor the use of mobile devices (smartphones, tablets, laptops) by employees, ensuring company data stays secure and policies are followed.
What is MAM
- Mobile Application Management
- a set of tools and services that help businesses manage and secure apps on mobile devices.
What is difference between MDM and MAM?
- Mobile device management (MDM) manages entire devices, while mobile application management (MAM) manages individual apps. MDM is better for company-owned devices, while MAM is better for employee-owned devices.
What uses a connection-oriented protocol that utilizes TCP?
- HTTPS
- SSH
What is BSOD for a crash screen in Windows?
- Blue Screen of Death
What is Pinwheel of Death?
- A Crash screen for MacOS
What is Kernel Panic?
- A Crash screen for Linux
What are the 4 main things you need to include for a gaming PC according to CompTIA?
(1) an SSD
(2) a high-end video/specialized GPU
(3) a high-definition sound card
(4) high-end cooling.
What are the 2 main things you need to include for a dedicated virtualization workstation according to CompTIA?
(1) maximum RAM
(2) multiple CPU cores
What is a UTM?
- Unified Threat Management (UTM)
- Centralizes threat management services including variety of security-related measures, combining a firewall, malware scanner, and intrusion detection/prevention.
What are the 5 common fiber optics connectors?
- Subscriber Connector (SC)
- Lucent Connector (LC)
- MT-RJ Connector (MTRJ)
- Ferrule Core Connector (FC)
- Straight Tip Connector (ST)
- https://www.cablematters.com/Blog/Networking/fiber-optic-connector-types
What is VDI?
- Virtual Desktop Infrastructure
Which of the following types of hard drives would be used in a gaming laptop to increase the system’s boot-up performance while providing a large amount of storage at a lower overall cost?
- Hybrid drive
