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2.1.b [ii] UDLD

March 27, 2019 at 3:02 pm
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CompTIA A+ 220-901 and 220-902 Retiring July 31, 2019

March 26, 2019 at 10:29 pm

CompTIA A+

OK, OK, I know, we don’t like deadlines, but for my readers that are in the middle of their CompTIA A+ prep, it is time to start marking the calendar. The 220-901 and 220-902 exams for CompTIA A+ certification are no longer offered after July 31, 2019.

Time flies when you are having fun studying right? Be sure to dive in and clear these exams well before the retirement date. Remember, we have two courses for you (one for each exam) at CBT Nuggets. These courses include valuable tools like Flash Cards, Hands-On Labs, and Quiz Questions to make sure you master the material.

220-901

https://www.cbtnuggets.com/learn/it-training/comptia-a-plus-220-901

220-902

https://www.cbtnuggets.com/learn/it-training/comptia-a-plus-220-902

Ready for a fun OSI Model quiz from the CompTIA A+ training! Enjoy:

The OSI Model Challenge – Quiz 1

2.1.b [i] CDP, LLDP – Part 2

March 25, 2019 at 11:37 am
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Understanding the Windows 10 Boot Process

March 22, 2019 at 9:53 am

Windows 10 Boot Process

In order to properly troubleshoot Windows 10 startup problems (as you are required to do in exam MD-100 from Microsoft), it is critical that you understand the various phases of the boot process and the components involved. This post provides that information below:

Phase 1 – Preboot

In this phase, the PC’s firmware is in charge and initiates a POST and loads the firmware settings. Once all this works (hopefully), the system identifies a valid system disk and reads the MBR. The system then starts the Windows Boot Manager. This is located here: %SystemDrive%\bootmgr

Phase 2 – Windows Boot Manager

It is the job of the Windows Boot Manager to find and start the Windows loader (Winload.exe). This is located on the Windows boot partition – %SystemRoot%\system32\winload.exe

Phase 3 – Windows Operating System Loader

In this phase, essential drivers required to start the Windows kernel are loaded and the kernel starts to run. The key file here is %SystemRoot%\system32\ntoskrnl.exe

Phase 4 – Windows NT OS Kernel

The kernel loads the system registry hive into memory and loads the drivers that are marked as BOOT_START. The kernel then passes control to the session manager process (Smss.exe).

You can identify the phase you are in visually by what your computer is displaying and the LEDs that are on the system. I will follow up with additional posts on this subject so that you can easily tell what phase you are stuck at – and what you can do to fix things.

Thanks for reading, and be sure to check out my new MD-100 Windows 10 training at CBT Nuggets!

Recording: Routing Protocol Configuration Best Practices

March 21, 2019 at 3:07 pm
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