On Wednesday, corresponding to 10/5/2023, a discussion of the doctoral dissertation of the Iraqi researcher was held: Ahmed Latif Yasser Khalifa Engineer at the College of Administration and Economics / University of Baghdad Under the title :- (A mechanism for detecting and preventing distributed denial-of-service attacks in software-defined networks) Where the supervision committee consisted of: Prof. Dr. Hamdy Mohamed Moussa Professor, Department of Computer Science and Vice Dean for Education and Student Affairs - Faculty of Computers and Information - Menoufia University Prof. Dr. Mahmoud Mohamed Hussein, Assistant Professor, Department of Computer Science - Faculty of Computing and Information - Menoufia University The judging and discussion committee consisted of: Prof. Dr. Hamdy Kamal Al-Mounir. Professor of Computers and Systems - Department of Electrical Engineering - Faculty of Engineering - Kafrelsheikh University (External Examiner) Prof. Dr. Sherif Saeed Al-Atarby, Professor of Computer Science and Vice Dean for Community Service and Environmental Development - Faculty of Computers and Information - Menoufia University. (examined internally) Prof. Dr. Hamdy Mohamed Moussa, Professor, Department of Computer Science and Vice Dean for Education and Student Affairs - Faculty of Computers and Information - Menoufia University (supervisor and discussant) Prof. Dr. Mahmoud Mohamed Hussein, Assistant Professor, Department of Computer Science - Faculty of Computers and Information - Menoufia University (supervisor and discussant) We were honored to attend: Prof. Dr. Gamal Farouk, Assistant Professor, Department of Computer Science A/ Ali Ahmed Abdullah is a researcher at the University's Expatriate Department