Lessons 1 & 2
What are the 6 steps of CompTia's troubleshooting methodology?
Hint:
1. IP
2. ETP
3. TT
4. EPA- IS
5.VFS-F
6.D
1. Identify the problem > Gather info from user (asks Q's); perform backups
2. Establish a theory of probably cause > Conduct research; inspect the system, reproduce the problem
3. Test the theory > Testing the theory to determine the cause, once confirmed, determine next steps to resolve the problem
4. Establish a plan of action and implement the solution > If initial theory doesn't check out, explore other causes/ theories | Repair, Replace, Workarounds
5. Verify full system functionality > Verify that the soluton resolves the issue & system is functional
6. Document findings, actions, outcomes > Make not of the parts used, steps taken, tools used and lessons learned
What is a PCIe and what does it do?
It's a modern expansion slot, that comes in the following sizes: x1, x4, x8, x16.
The larger the #, the more ports going from the lanes to the processor.
Note: x16 > where the graphics cards go
Raid 1+ 0 provide the following:
*Min disks
*Keyword
*Reason for use
*Cost of Redundancy
* 4 disks
*Mirrored striped set (nested RAID)
*One of the best RAID's it is redundant and fast read speeds
*Cost to create the redundancy is 1/2
What can a secure boot do?
It can prevent the installation of unauthorized operating systems.
What is the max transfer rate and max distance of CAT 5?
Transfer Rate = 100 Mbps
Distance = 100m
What is Electrostatic discharge (ESD)?
What should you use, when working on a computer?
A static charge from clothes or the body suddenly released into a circuit by touch.
Use an ESD wrist strap, place the computer on an ESD mat.
In IT what does Redundnacy mean?
To have extra, it is fault tolarance.
Raid 5 provide the following:
*Min disks
*Keyword
*Reason for use
*Cost of Redundancy
* 3
*Distributed (spread out across mltiple disks) parity (fake copy)
* Lowest cost of redundancy
* It is 1 disk worth of space
What key(s) do you press to get into BIOS to boot process interrupt?
Del, Enter, F2, F10
What is the max transfer rate and max distance of CAT 5e?
Tansfer Rate = 1 Gbps
Distance = 100m
What is serial advanced technology attachment interface (SATA) and what does it do?
It's an internal hard drive connector and connected to the drives with SATA cables.
Raid 0 – Provide the following:
* Minimum disks
*Keyword
*Reason for use
*A Con
* 2
*Striping
*Speed
*No Redundnacy
Raid 6 provide the following:
*Min disks
*Keyword
*Reason for use
*Cost of Redundancy
*4
*Striping with Dual Distributed Parity
* Can lose ANY 2 disks
*2 disks
What is a Trusted Platform Module (TPM)?
It's hardware that securely stores digital certificates, cryptographic keys a d hashed passwords.
Note: TPM 2.0 is required for Windows 11.
What is the max transfer rate(s) and max distance(s) of CAT 6?
Transfer Rate = 1 Gbps / 10 Gbps
Distance = 100m / 55m
How many pins are on the SATA data cable?
7 pins
Raid 1 provide the following:
*Min disks
*Keyword
*Reason for use
*Cost of Redundancy
*2
*Mirroring
*Fantastic Redundancy
*You lose 1/2 of storage to creat the redundancy
What is SODIMM and where can you find it?
Small Outline - dual inline memory module
Laptops
What are the 3 non-overlapping channels and why do we use them?
1, 6, 11
Utilize if using the 2.4 GHz frequency b/c it will minimize the interference.
What is the max transfer rate and max distance of CAT 6A?
Transfer Rate = 10 Gbps
Distance = 100m
How many pins ar eon the SATA power cable?
15
What are the 7 steps of motherboard installation?
1. Review documentation
2. Install I/O shield bt/wn backside of system case and motherboard ports
3. Insert standoffs > Used to create space bt/sn motherboard and system case
4. Pre-install CPU, Thermal paste, Heat Sink and Mmeory
5. Align and secure motherboard
6. Final Assembly
7. Cable management
What is DIMM and where can you find it?
Dual Inline Memory Module
Desktop
Special?
Bonus Points
Add +100 to your account
What is the max transfer rate(s) and max distance(s) of CAT 8?
Transfer Rate(s) = 25 Gbps/ 40 Gbps
Distance(s) = 30m / 30m