common problems - Ethan
Are missing files a sign of disk failure
Yes
What does SSD stand for
Solid state drive
You’ll find this interface in almost every desktop or laptop because it’s cheap and reliable
What is SATA
What do BIOS and UEFI actually do for a computer
Both firmware, connect hardware and os
What is the difference between connecting an external drive and an internal one
External drives plug into a USB port while the computer is on, while internal drives must be installed inside the case while the power is off
what is it called when there are unintended alteration of computer data
Corruption
What memory does SSD use
Flash memory
What is the maximum cable length for a SATA cable
one meter
Why did we move from BIOS to UEFI
BIOS is older, and is more limited
What is the main advantage of using a Dynamic Disk
Dynamic disks allow you to combine leftover space from several different physical hard drives
what does chkdsk do
analyze and repairs file system integrity errors
What is faster SSD or hard drive
SSD
While a SATA drive can only talk or listen one at a time, a SAS drive uses this feature to send and receive data simultaneously
What is full-duplex
What is the difference between MBR and GPT
BIOS uses MBR, UEFI uses GPT
Why would a user create a RAID array
A RAID array uses multiple disks together to either speed up the computer or protect your data if one drive breaks
hard disk preparation steps
partition the drive, Perform a high-level format on the hard drive
what drive has actuator arms
Hard drive
To make sure a server doesn't crash if a cable fails, SAS drives use this trick to connect to two different controllers at the same time
What is dual-porting
What is "Secure Boot," and which system supports it
Security feature supported by UEFI
What does a Storage Pool do
A Storage Pool groups different hard drives into one big "bucket" of space so you can easily add more storage later
How long is a hard disk warranty
3 years
What is the first step in storage device configuration
Keep the drive in the protective antistatic container until you are ready for the installation.
Since a motherboard can only have so many plugs, IT pros use this specialized piece of hardware to chain SAS drives together
What is a SAS expander
How can you tell the difference between a BIOS and a UEFI screen just by looking at it
BIOS screens are text only, and UEFI is higher res
What is a VHD
A VHD is a single file that acts like a real hard drive