CSC 311 Introduction to Computer Networks CA 2022

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CSC 311: Continuous Assessment, University of Buea, Faculty of Science, Department of Computer Science, Course CSC311 Introduction to Computer Networks, 23 November 2022. 30 multiple-choice questions (1 mark each) covering: the Internet and computer-network fundamentals, network communication examples, geographic network categories, FastEthernet data rate, access networks, protocols, exponential-growth estimation, URLs, FTP, twisted-pair cable issues, multiple-access protocols (CSMA/CD, CSMA/CA), CRC, EMI-resistant transmission media, ARP and MAC/physical addressing, multicast MAC address validity, data-transmission-time calculation, the OSI reference model (layer independence, application layer, transport layer), the TCP/IP model (routing layer, Internet-layer PDU), IPv4 addressing (address length, binary-to-decimal conversion, address classes, broadcast addresses, default subnet masks, network and host address calculation). Source was a graded handwritten student CA script bearing the student's registration number, name and a numeric score; only the printed questions were used, the real student PII and score were excluded, and independent correct solutions were derived, cross-checked against the instructor's own printed answer key where it was legible and consistent with standard networking facts (and corrected via independent verification in the small number of cases where the handwritten key mark was illegible, crossed out, or conflicted with well-established networking facts).