The 28-year-old Iraqi Kurd has evaded arrest by operating under the alias “Kardo Ranya”.
More than 11,000 people have signed a petition calling for a review of the exam saying it was “totally unrecognisable” from what they had prepared for.
Security officials say CODECO militia groups carried out the attack in Ituri province.
Israel kills at least 24 people in Lebanon in one day as Tehran’s response to US proposal to end the war is awaited.
The killings mark the third attack in May alone by the US military in the eastern Pacific Ocean.
At least five people were killed after a massive fire broke out at a fairground in Villahermosa, southeastern Mexico.