Information Technology Lab Safety Exam

Ground yourself → open the case → shut down the OS → unplug from the wall

Unplug from the wall → open the case → shut down the OS → hold the power button

Shut down the OS → unplug from the wall → hold the power button to bleed residual charge → ground yourself → open the case

Shut down the OS → leave the unit plugged in for grounding → ground yourself → open the case

It grounds you too effectively, which increases the ESD risk to components

It does not ground you at all, and modern ATX boards carry standby voltage any time the unit is connected to the wall — so parts of the board stay live

It is correct practice, but only on systems built before ATX

It only matters when the room is carpeted or the air is dry

It keeps your other hand free to hold a flashlight or tool

It reduces the static charge your body can build up

It gives you a free hand to catch dropped screws before they land on the board

It prevents current from crossing your chest through both arms, which is the pathway that stops hearts

Wipe the liquid up quickly before it can reach the motherboard

Pull the power cord out of the back of the tower

Touch neither the liquid nor the machine; cut power at the wall switch, breaker, or lab kill switch, then alert the instructor

Press and hold the power button to force an immediate shutdown

Damage that shows up immediately as a failed POST or a dead component

Damage from an electrostatic discharge that weakens a component so it appears to work at first but fails early or intermittently later

Damage caused only by very high-voltage visible sparks

Cosmetic damage to a device case from small shocks

Nothing — a grounded strap is exactly the right precaution for PSU work

He needs a full ESD smock and mat, not just a wrist strap

He is right in principle, but the unit must first sit unplugged for 24 hours

It is backward: the strap turns his body into an excellent path to ground for lethal stored voltage — and a PSU is never opened at all

Held by the gold contact pins so that no pressure is placed on the circuit board

Stored in a zip-top sandwich bag, which is close enough to an anti-static bag

Held by the edges only, stored in a dissipative anti-static bag, ideally on an ESD mat

Set face-down on the carpet beside the workstation until it is needed

Residual static charge on the outer case panels

Hot heatsinks, CPUs, GPUs, and recently spun drives, plus the thin, sharp fins of the heatsink itself

There is no physical risk once the system is powered off

Magnetic fields generated by the hard drive platters

Bent upward, with the heels of the hands braced against the desk edge for support

Bent slightly downward so the fingers can drop onto the keys

Resting firmly on the desk edge, which provides the support that prevents strain

Straight and neutral, floating rather than bent or resting on the desk edge

Every 60 minutes, look 6 feet away for 60 seconds; stand and stretch once per class period

Every 20 seconds, look 20 feet away for 20 minutes; stand and stretch every 2 hours

Every 20 minutes, look at something about 20 feet away for at least 20 seconds; stand and stretch every 30–60 minutes

Only when your eyes feel tired; a good posture setup makes scheduled breaks unnecessary

Carpal tunnel compression, leading to tingling in the fingers

Shoulder abduction and overreach, leading to shoulder and upper-back strain

Forward neck flexion, leading to neck pain and headaches

Restricted circulation in the legs and lower back pain

Pull the pin, Aim at the base of the fire, Squeeze the handle, Sweep side to side

Prepare the area, Alert the class, Spray the flames, Signal for help

Pull the alarm, Assess the fire, Stand back, Spray downward

Position yourself, Aim at the top of the flames, Squeeze, Step back

Yes — at that size the shock risk is negligible

Yes, as long as you stand well back and pour from a distance

Yes — water is rated for Class C equipment fires

No — water conducts electricity and can electrocute you, and the size of the fire is irrelevant

Power strips plug directly into a wall receptacle, never into another power strip or an extension cord

Daisy-chaining two power strips is acceptable as long as the combined load stays under the rating

An extension cord may serve as permanent wiring provided it is taped securely to the floor

Cords running across a walkway are acceptable when covered with duct tape

It violates the color-coding standard for safety equipment placement

Safety equipment only works if it is reachable in seconds under stress; blocking it turns a small, controllable incident into a large one, and nobody has time to move an obstruction in an emergency

It matters only during announced fire drills and inspections

It is not equally serious — it is a housekeeping issue rather than a safety issue

@P@ssw0rd!

Jsmith2027

RustyKettle-Marbles-97

Password123!

Symbol substitution, such as replacing "a" with "@", is what defeats cracking software

One extremely complex password reused across all accounts is the safest approach

Forced complexity rules and mandatory monthly password changes are the two most important protections

Length and unpredictability matter most, every account needs its own unique password, and multi-factor authentication is the single most effective protection on a personal account

This is routine identity verification — read the code back

Someone is attacking your account; one-time codes are for the account holder alone, and no legitimate service or person ever needs one relayed to them

It is acceptable if you were the one who initiated the call

It is acceptable if you recognize the number the message came from

A sender domain that does not match the real organization, combined with manufactured urgency and a request for credentials or personal data

Two spelling errors and an unusual emoji in the subject line

The message arrived outside of normal school hours

The message is unusually long and detailed

Reply in the same chat and ask her to confirm it is really her

Trust it — a familiar username confirms the sender's identity

Contact her through a separate, known channel such as calling her or asking in person, because a familiar username proves nothing when compromised accounts are routinely used to attack the victim's contacts

Click the link and check whether the login page looks legitimate

Close the browser window, which ends your session

Lock the screen, which is sufficient on a shared machine

Clear the browsing history

Log out of all accounts and properly sign out or shut down the computer so no one else can access your sessions