In a $B$ tree of order $5$, the following keys are inserted as follows : $7, 8, 1, 4, 13, 20, 2, 6$ and $5$ How many elements are present in the root of the tree ?

A chained hash table has an array size of $100$. What is the maximum number of entries that can be placed in the table ? $100$ $200$ $10000$ There is no upper limit

In a complete binary tree of n nodes, how far are the two most distant nodes ? Assume each edge in the path counts as ! About $\log_{2} n$ About $2 \log_{2} n$ About $n \log_{2} n$ About $2n$