Computer Networks · DNS and HTTP
Official IIT answer key · IIT Kanpur · Audited Aug 2026
GATE CSE 2015 Set 1 Q15 · MCQ · 1 mark
Key concept
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Topic notes
In GATE CS, the 'DNS and HTTP' topic is tested predominantly through conceptual protocol interaction, chronological packet sequencing, connection lifecycle mechanics, and timing calculations. Early exams focused on basic protocol roles (SMTP, POP3, HTTP), statefulness, and HTML/XML properties, whereas recent exams (2020–2026) strongly emphasize quantitative analysis of iterative DNS hierarchies, persistent vs. non-persistent HTTP, pipelining, and total round-trip time (RTT) latency.
Full DNS and HTTP guide →Which of the following statements is/are FALSE? I. XML overcomes the limitations in HTML to support a structured way of organizing content. II. XML specification is not case sensitive while HTML specification is case sensitive. III. XML supports user defined tags while HTML uses pre-defined tags. IV. XML tags need not be closed while HTML tags must be closed.
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Independent practice explanation verified by the GateAI team. GATE is conducted by the IITs; question text follows the official paper.
