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Computer Science · 2026 · 1 mark
CBSE 2026 · Central · Set 4 · Q12
A table has two candidate keys, one of which is chosen as the primary key. How many alternate keys does this table have?
A table has two candidate keys, one of which is chosen as the primary key. How many alternate keys does this table have?
Official answer
(B)
$\displaystyle 1$
Marking-scheme solution
(B)
$\displaystyle 1$
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CBSE Class 12 Computer Science past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.