\",\n \"
\",\n \"

\",\n \"\"\n ],\n \"correctIndex\": 1,\n \"topic\": \"html\",\n \"quiz\": 2,\n \"feedback\": {\n \"correct\": \"Correct.
is a void element in HTML — it represents a line break and does not require (or allow) a closing tag.\",\n \"incorrect\": \"Incorrect. The answer is
. Void elements like
, , and do not need closing tags.\"\n },\n \"year\": 2016\n },\n {\n \"id\": \"q7\",\n \"question\": \"What technique is used by search engines to collect data from the web?\",\n \"options\": [\n \"A. Web Crawling\",\n \"B. Web Scraping\",\n \"C. Web Mining\",\n \"D. Web Indexing\"\n ],\n \"correctIndex\": 0,\n \"topic\": \"networking\",\n \"quiz\": 2,\n \"feedback\": {\n \"correct\": \"Correct. Search engines use Web Crawling — automated bots follow links across the web to discover and collect page data for indexing.\",\n \"incorrect\": \"Incorrect. The answer is A. Web Crawling. Crawlers systematically browse and collect web content for search engine indexing.\"\n },\n \"year\": 2016\n },\n {\n \"id\": \"q1\",\n \"question\": \"Convert binary 0010001011111111 to decimal\",\n \"options\": [\n \"8959\",\n \"8879\",\n \"8999\",\n \"8799\"\n ],\n \"correctIndex\": 0,\n \"topic\": \"number-systems\",\n \"quiz\": 2,\n \"feedback\": {\n \"correct\": \"Correct. Binary 0010001011111111 converts to decimal 8959.\",\n \"incorrect\": \"Incorrect. The answer is 8959. Converting 0010001011111111 from binary to decimal yields 8959.\"\n },\n \"year\": 2016\n },\n {\n \"id\": \"q2\",\n \"question\": \"Convert Hexadecimal 2E7C to Decimal\",\n \"options\": [\n \"11900\",\n \"11800\",\n \"12900\",\n \"11100\"\n ],\n \"correctIndex\": 0,\n \"topic\": \"number-systems\",\n \"quiz\": 2,\n \"feedback\": {\n \"correct\": \"Correct. 2×4096 + 14×256 + 7×16 + 12 = 8192 + 3584 + 112 + 12 = 11900.\",\n \"incorrect\": \"Incorrect. The answer is 11900. 2E7C hex = 2×4096 + E(14)×256 + 7×16 + C(12) = 11900.\"\n },\n \"year\": 2016\n },\n {\n \"id\": \"q3\",\n \"question\": \"Convert decimal 34358 to hexadecimal\",\n \"options\": [\n \"8636\",\n \"8646\",\n \"8726\",\n \"8736\"\n ],\n \"correctIndex\": 0,\n \"topic\": \"number-systems\",\n \"quiz\": 2,\n \"feedback\": {\n \"correct\": \"Correct. 34358 in hexadecimal is 8636.\",\n \"incorrect\": \"Incorrect. The answer is 8636. Dividing 34358 repeatedly by 16 gives hex digits 8, 6, 3, 6.\"\n },\n \"year\": 2016\n },\n {\n \"id\": \"q1\",\n \"question\": \"Convert Hexadecimal 19BD to binary\",\n \"options\": [\n \"0001100110111101\",\n \"0001100110111100\",\n \"0001101110111101\",\n \"0001100010111101\"\n ],\n \"correctIndex\": 0,\n \"topic\": \"number-systems\",\n \"quiz\": 2,\n \"feedback\": {\n \"correct\": \"Correct. 1=0001, 9=1001, B=1011, D=1101, giving 0001100110111101.\",\n \"incorrect\": \"Incorrect. The answer is 0001100110111101. Convert each hex digit: 1=0001, 9=1001, B=1011, D=1101.\"\n },\n \"year\": 2016\n },\n {\n \"id\": \"q2\",\n \"question\": \"How would you use an internal style sheet in HTML?\",\n \"options\": [\n \"Place a in the section\",\n \"Place a