ICT hardware maintenance – UGC NET Question

Statements A, B and C reflect recommended maintenance practices for ICT hardware, while D is unsafe. Good ventilation and dust control prolong equipment life, surge protection reduces electrical damage and cleaning peripherals supports usability and health. Attempting repairs without knowledge or precautions can cause harm to both the user and the equipment, so D must be excluded. Hence, the combination A, B and C only is correct.

Option A:
Option A is correct because it aggregates the three true maintenance guidelines and omits D, which encourages risky behaviour. It aligns with basic safety instructions given in ICT laboratories and computer centres.

Option B:
Option B is incomplete because it includes only A and B and leaves out C. Maintaining cleanliness of keyboards and mice is also part of responsible hardware care, so excluding C makes the description partial.

Option C:
Option C is incorrect because it groups B, C and D and accepts D. Although B and C are correct, adding D suggests that untrained users can safely repair hardware, which contradicts standard safety guidance.

Option D:
Option D is incorrect because it treats all four statements as correct and hence legitimises D. Since D promotes unsafe practices, this combination cannot be accepted.