Quiz — 6713abeb23ff6_Correction finale - Série 3 - RC.pdf

Question 1 sur 10 20:00

[{"id":2925,"question":"Quel protocole de la couche Transport garantit une transmission fiable des données ?","option_a":"A. UDP","option_b":"B. IP","option_c":"C. TCP","option_d":"D. HTTP","option_e":"","option_f":"","bonne_reponse":"c","explication":"TCP (Transmission Control Protocol) est un protocole de la couche Transport qui assure une transmission fiable, ordonnée et sans erreur des données entre applications.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"A. UDP\", \"b\": \"B. IP\", \"c\": \"C. TCP\", \"d\": \"D. HTTP\"}}","_debug_options_count":4},{"id":2926,"question":"La couche Physique du modèle OSI est responsable de la transmission des bits sur un support physique.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Vrai. La couche Physique gère la transmission brute des bits (0 et 1) sur un support physique comme un câble ou une fibre optique.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":2927,"question":"Quelle est la plage d'adresses IP privées dans la classe C ?","option_a":"A. 10.0.0.0 à 10.255.255.255","option_b":"B. 172.16.0.0 à 172.31.255.255","option_c":"C. 192.168.0.0 à 192.168.255.255","option_d":"D. 169.254.0.0 à 169.254.255.255","option_e":"","option_f":"","bonne_reponse":"c","explication":"La plage d'adresses privées en classe C est 192.168.0.0 à 192.168.255.255, souvent utilisée pour les réseaux locaux.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"A. 10.0.0.0 à 10.255.255.255\", \"b\": \"B. 172.16.0.0 à 172.31.255","_debug_options_count":4},{"id":2928,"question":"Le protocole HTTP fonctionne sur quel port standard ?","option_a":"A. 21","option_b":"B. 80","option_c":"C. 443","option_d":"D. 25","option_e":"","option_f":"","bonne_reponse":"b","explication":"HTTP (HyperText Transfer Protocol) utilise le port 80 par défaut pour les communications non sécurisées.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"A. 21\", \"b\": \"B. 80\", \"c\": \"C. 443\", \"d\": \"D. 25\"}}","_debug_options_count":4},{"id":2929,"question":"La commande 'ping' utilise le protocole ICMP pour tester la connectivité réseau.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Vrai. La commande 'ping' envoie des messages ICMP (Internet Control Message Protocol) pour vérifier la disponibilité d'une machine sur le réseau.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":2930,"question":"Quel masque de sous-réseau permet de diviser un réseau en 4 sous-réseaux ?","option_a":"A. 255.255.255.0","option_b":"B. 255.255.255.128","option_c":"C. 255.255.255.192","option_d":"D. 255.255.255.224","option_e":"","option_f":"","bonne_reponse":"d","explication":"Un masque 255.255.255.224 (ou \/27 en notation CIDR) permet de créer 8 sous-réseaux (2^3), mais pour 4 sous-réseaux, on utilise souvent 255.255.255.192 (\/26).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"d\", \"options\": {\"a\": \"A. 255.255.255.0\", \"b\": \"B. 255.255.255.128\", \"c\": \"C. 255.255.25","_debug_options_count":4},{"id":2931,"question":"Le protocole DNS sert à traduire les adresses IP en noms de domaine.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Vrai. DNS (Domain Name System) est un protocole qui associe des noms de domaine (ex: google.com) à des adresses IP (ex: 172.217.16.46).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":2932,"question":"Quelle couche du modèle OSI est responsable du routage des paquets entre réseaux ?","option_a":"A. Couche Application","option_b":"B. Couche Réseau","option_c":"C. Couche Transport","option_d":"D. Couche Liaison de données","option_e":"","option_f":"","bonne_reponse":"b","explication":"La couche Réseau (Network Layer) gère le routage des paquets entre différents réseaux, notamment via le protocole IP.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"A. Couche Application\", \"b\": \"B. Couche Réseau\", \"c\": \"C. Couche","_debug_options_count":4},{"id":2933,"question":"Un masque de sous-réseau 255.255.255.240 permet de créer combien d'adresses hôtes par sous-réseau ?","option_a":"A. 14","option_b":"B. 16","option_c":"C. 30","option_d":"D. 32","option_e":"","option_f":"","bonne_reponse":"c","explication":"Un masque \/28 (255.255.255.240) laisse 4 bits pour les adresses hôtes, soit 2^4 - 2 = 14 adresses utilisables (car 2 adresses sont réservées : réseau et broadcast).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"A. 14\", \"b\": \"B. 16\", \"c\": \"C. 30\", \"d\": \"D. 32\"}}","_debug_options_count":4},{"id":2934,"question":"Le protocole FTP utilise deux ports : un pour le contrôle et un pour les données.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Vrai. FTP (File Transfer Protocol) utilise le port 21 pour le contrôle des commandes et un port dynamique (généralement \u003E1024) pour le transfert des données.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4}]