A) Num lock
B) Shift
C) Ctrl
D) Arrow lock
E) Caps lock
Correct Answer: A
Solution :
[a] Numeric keypads usually operate in two modes; when Num Lock is off, keys 8, 6, 2, 4 act like arrow keys and 7, 9, 3, 1 act like Home, PgUp, PgDn and End; when Num Lock is on, digits keys produce corresponding digits.
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