What do you mean by cationic and anionic hydrolysis?

Dear Student,
Cationic hydrolysis refers to the hydrolysis of those salts that have strong acid and weak base components.In Cationic hydrolysis the resulting solution is acidic.
For Example- Hydrolysis of ammonium chloride (NH₄Cl) 
$$\begin{gathered} N{H}_{4}Cl+ H_{2}O\to N{H}_{4}OH +HCl \\ N{H}_{4}OH\rightleftharpoons N{H}_4^{+}+O{H}^{-} \\ HCl\to H^{+}+C{l}^{-} \end{gathered}$$
Since HCl is a strong acid and dissociates completely making the solution acidic.
Anionic hydrolysis refers to the hydrolysis of salts having weak acid and strong base components. In anionic hydrolysis the resulting solution is basic.
For Example Hydrolysis of sodium acetate(CH₃COONa)
$$\begin{gathered} C{H}_{3}COONa+H_{2}O\to C{H}_{3}COOH +NaOH \\ C{H}_{3}COOH\rightleftharpoons C{H}_{3}CO{O}^{-}+H^{+} \\ NaOH\to N{a}^{+}+O{H}^{-} \end{gathered}$$
NaOH being a strong base dissociates complete;y making the resulting solution slightly alkaline.
Regards!