Impression management is to as cognitive dissonance is to overjustification; insufficient justification self-presentation; self-justification false consensus effect; false uniqueness effect self-monitoring; self-presentation

The answer is Self-presentation for Impression Management and Self-justification for Cognitive dissonance. Self-presentation is one of the behavior that attempts to conveys some of the details or information regarding oneself or oneself image to other people. Self-justification is the act of justifying someone's action and providing some excuses for one's own behavior.