Exam 220-1001 topic 1 question 71 discussion

B,C,D — Not (A) – answer A negates answers B, C, and D since B,C, and D imply a touch screen was installed and (A) says it was not a touchscreen – a digitizer cable and touch-screen drivers can’t be used with a non-touch-screen display. The only answers pertaining to a touch screen display are: B — The touch screen must be calibrated after a replacement. C — The digitizer cable is not seated properly on the motherboard. D — The new touch-screen drivers must be installed.

there should have been more info with this question

BCD is what id go for just from experience

this is why its BCD

Hello, so just like you all critical thinking folks, I was interested in knowing how and why the answer to this question is evenly divided. It's a real tricky question and I'm glad to see diverse opinions here from the selected fee who feel compelled to add an input here, something we all know we'd rather not. My chosen answer to this question are ACD and this is are my justifications: A immediately jumps to me because the "OS loads and can be seen perfectly on the screen" according to the question, right! Follow me on that, so your mobile computer boots and loads the OS perfectly. So now you you touch/tap an icon where you want to navigate on your screen right? So you tap on e.g Windows/My computer, you get no response...then do a swipe up, no response again then touch/tap tap tap a few other icons and that's when you realize yyour touchscreen is non-responsive

BCD is what id go for just from experience

How can it be A when the question says "the touch screen is non-responsive" what tech worth their salt would overlook documentation stating what type of screen is in the box?

Folks, I have to confess: A year ago I posted some comments insisting that the "correct" answers were A, C and E (new part doesnt have a touch feature, cable wasnt installed right, or part was DOA), because in all of my years of IT support I know those are the MOST likely reasons the touchscreen would be UNResponsive. However, the CompTIA Exam bears NO relation to "Actual reality" and the answers you must provide are the answers comptia has decided are "correct". Therefore I have to update my suggested answer. In the Official CompTia A+ core 1 220-1001 prayer guide and songbook Studyguide, in the troubleshooting laptop issues section, the troubleshooting steps for touchscreens says to rule out a software problem Before suspecting a more serious hardware problem. in other words, don't assume it's DOA or that the part didn't include a digitizer. It goes on to say: check the cable first, then reinstall the drivers, and then run the calibration utility. B, C and D

its A C D isnt it. who already took the exam and got it right?

If we all agree on C, then G would be a good choice to me since they relate. I,however initislly chose BCD

A, sometimes parts get ordered by a looking at a part number on the old parts, and a display unit might have a part number for the display portion, and another for the whole unit with digitizer, but what got ordered was the display only part. Very common. C, the connector for a digitizer is probably only a thin little ribbon cable connected to a zif-clamshell type of connector, and they can be tricky to get plugged in right. E, When replacement parts are ordered in bulk, it is common to get some *partially* doa items in the mix. which means the display could appear fine, but the digitizer portion, which has its OWN plug, could be doa. I have seen this first hand.

as Papanook said, A,C,E are the MOST likely probable causes here. C, the connector for a digitizer is probably only a thin little ribbon cable connected to a zif-clamshell type of connector, and they can be tricky to get plugged in right.

From a desktop support tech for 7 years, A C E realistically would be my choice. Calibrating the touch screen makes the input more accurate and wouldn't stop it from functioning. We get do get some DOE parts and wrong parts. Parts from IBM/Lenovo are not always new, some are refurbished which could result in DOE.

The question asks simply for Probable causes, meaning events that could likely resulted in that result. By this A is a likelihood. Also C and D could are events that could cause such result.

everyone here saying BCD, but CDE, makes sense to me, An uncalibrated touchscreen wouldn't be unresponsive

BCD is the correct answer.

If its failure it should be assumed that it is indeed the right screen. Therefore BCD should be correct.