{"id":86,"date":"2025-02-10T20:25:00","date_gmt":"2025-02-10T11:25:00","guid":{"rendered":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=86"},"modified":"2025-10-09T09:39:16","modified_gmt":"2025-10-09T00:39:16","slug":"4-osi%e5%8f%82%e7%85%a7%e3%83%a2%e3%83%87%e3%83%ab","status":"publish","type":"post","link":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=86","title":{"rendered":"OSI\u53c2\u7167\u30e2\u30c7\u30eb"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">OSI\u53c2\u7167\u30e2\u30c7\u30eb\u3068\u306f<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><span class=\"swl-marker mark_yellow\">OSI\u53c2\u7167\u30e2\u30c7\u30eb (Open Systems Interconnection)<\/span><\/strong><br>\u56fd\u969b\u6a19\u6e96\u5316\u6a5f\u69cb\uff08ISO\uff09\u304c\u7b56\u5b9a\u3057\u305f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u901a\u4fe1\u30927\u3064\u306e\u968e\u5c64\u306b\u5206\u3051\u3066\u6574\u7406\u3057\u305f\u30e2\u30c7\u30eb\u3002<\/li>\n\n\n\n<li>\u5404\u5c64\u3067\u5f79\u5272\u3092\u5206\u62c5\u3059\u308b\u3053\u3068\u3067\u3001\u901a\u4fe1\u306e\u4ed5\u7d44\u307f\u3092\u7406\u89e3\u3057\u3084\u3059\u304f\u3059\u308b\u3002<\/li>\n\n\n\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u8a08\u30fb\u969c\u5bb3\u5bfe\u5fdc\u306e\u8b70\u8ad6\u3082OSI\u53c2\u7167\u30e2\u30c7\u30eb\u3092\u524d\u63d0\u306b\u884c\u308f\u308c\u308b\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u6b74\u53f2<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1984\u5e74\u306b\u56fd\u969b\u6a19\u6e96\u3068\u3057\u3066\u7b56\u5b9a\u3002<\/li>\n\n\n\n<li>\u5f53\u521d\u306fOSI\u6e96\u62e0\u88fd\u54c1\u306e\u666e\u53ca\u3092\u60f3\u5b9a\u3002<\/li>\n\n\n\n<li>1990\u5e74\u4ee3\u306bTCP\/IP\u304c\u6025\u901f\u306b\u666e\u53ca \u2192 OSI\u6e96\u62e0\u88fd\u54c1\u306f\u307b\u3068\u3093\u3069\u5e83\u307e\u3089\u305a\u3002<\/li>\n\n\n\n<li>\u73fe\u5728\uff1a\u5b9f\u7528\u7684\u306b\u306fTCP\/IP\u304c\u4e3b\u6d41\u3060\u304c\u3001\u901a\u4fe1\u306e\u57fa\u672c\u6982\u5ff5\u3092\u5b66\u3076\u30e2\u30c7\u30eb \u3068\u3057\u3066OSI\u306f\u5fc5\u9808\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u968e\u5c64<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30ec\u30a4\u30e4<\/th><th>\u540d\u79f0<\/th><th>\u4e3b\u306a\u5f79\u5272<\/th><th>PDU\uff08\u30c7\u30fc\u30bf\u5358\u4f4d\uff09<\/th><\/tr><\/thead><tbody><tr><td>\u7b2c7\u5c64<\/td><td>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64<\/td><td>\u30e6\u30fc\u30b6\u30fc\u306b\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\uff08Web, \u30e1\u30fc\u30eb\u306a\u3069\uff09<\/td><td>\u30c7\u30fc\u30bf<\/td><\/tr><tr><td>\u7b2c6\u5c64<\/td><td>\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64<\/td><td>\u30c7\u30fc\u30bf\u306e\u5f62\u5f0f\u5909\u63db\uff08\u6587\u5b57\u30b3\u30fc\u30c9, \u6697\u53f7\u5316\u306a\u3069\uff09<\/td><td>\u30c7\u30fc\u30bf<\/td><\/tr><tr><td>\u7b2c5\u5c64<\/td><td>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64<\/td><td>\u901a\u4fe1\u306e\u958b\u59cb\u30fb\u7d42\u4e86\u30fb\u540c\u671f<\/td><td>\u30c7\u30fc\u30bf<\/td><\/tr><tr><td>\u7b2c4\u5c64<\/td><td>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<\/td><td>\u4fe1\u983c\u6027\u306e\u3042\u308b\u901a\u4fe1\uff08TCP\/UDP\uff09<\/td><td>\u30bb\u30b0\u30e1\u30f3\u30c8 \/ \u30c7\u30fc\u30bf\u30b0\u30e9\u30e0<\/td><\/tr><tr><td>\u7b2c3\u5c64<\/td><td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64<\/td><td>\u5b9b\u5148\u3078\u306e\u7d4c\u8def\u5236\u5fa1\uff08IP, \u30eb\u30fc\u30bf\uff09<\/td><td>\u30d1\u30b1\u30c3\u30c8<\/td><\/tr><tr><td>\u7b2c2\u5c64<\/td><td>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64<\/td><td>\u96a3\u63a5\u30ce\u30fc\u30c9\u9593\u3067\u306e\u901a\u4fe1\uff08MAC, \u30b9\u30a4\u30c3\u30c1\uff09<\/td><td>\u30d5\u30ec\u30fc\u30e0<\/td><\/tr><tr><td>\u7b2c1\u5c64<\/td><td>\u7269\u7406\u5c64<\/td><td>\u96fb\u6c17\u4fe1\u53f7\u3084\u5149\u4fe1\u53f7\u3067\u30d3\u30c3\u30c8\u3092\u4f1d\u9001<\/td><td>\u30d3\u30c3\u30c8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<div class=\"wp-block-image is-style-border\">\n<figure class=\"alignleft size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/sample.tech-village.co.jp\/wp-content\/uploads\/2025\/09\/ChatGPT-Image-2025\u5e749\u67087\u65e5-07_41_13-683x1024.png\" alt=\"\" class=\"wp-image-443\" style=\"width:388px;height:auto\"\/><\/figure>\n<\/div>\n\n\n<p class=\"is-style-big_icon_check wp-block-paragraph\">\u3053\u306e\uff17\u5c64\u306f\u78ba\u5b9f\u306b\u899a\u3048\u307e\u3057\u3087\u3046\uff01<br>\u4e0a\u304b\u3089\u9806\u306b\u300c\u30a2\u30d7\u30bb\u30c8\u30cd\u30c7\u30d6\u300d\u3068\u899a\u3048\u308b\u306e\u3082\u3042\u308a\u3067\u3059\uff01<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30ab\u30d7\u30bb\u30eb\u5316\u3068\u975e\u30ab\u30d7\u30bb\u30eb\u5316<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u9001\u4fe1\u5074<\/strong>\uff1a\u4e0a\u4f4d\u5c64 \u2192 \u4e0b\u4f4d\u5c64\u3078\u51e6\u7406\n<ul class=\"wp-block-list\">\n<li>\u5404\u5c64\u3067\u30d8\u30c3\u30c0\u304c\u4ed8\u52a0\u3055\u308c\u3066\u3044\u304f = <strong><span class=\"swl-marker mark_yellow\">\u30ab\u30d7\u30bb\u30eb\u5316<\/span><\/strong><\/li>\n\n\n\n<li>\u30ec\u30a4\u30e41\u3067\u6700\u7d42\u7684\u306b\u96fb\u6c17\u4fe1\u53f7\u3068\u306a\u3063\u3066\u9001\u4fe1\u3055\u308c\u308b<br><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u53d7\u4fe1\u5074<\/strong>\uff1a\u4e0b\u4f4d\u5c64 \u2192 \u4e0a\u4f4d\u5c64\u3078\u51e6\u7406\n<ul class=\"wp-block-list\">\n<li>\u5404\u5c64\u3067\u30d8\u30c3\u30c0\u3092\u53d6\u308a\u5916\u3059 = <strong><span class=\"swl-marker mark_yellow\">\u975e\u30ab\u30d7\u30bb\u30eb\u5316<\/span><\/strong><\/li>\n\n\n\n<li>\u30ec\u30a4\u30e47\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u5143\u306e\u30c7\u30fc\u30bf\u3068\u3057\u3066\u5229\u7528\u3067\u304d\u308b<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image is-style-border\">\n<figure class=\"alignleft size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/sample.tech-village.co.jp\/wp-content\/uploads\/2025\/09\/ChatGPT-Image-2025\u5e749\u67087\u65e5-00_50_07-683x1024.png\" alt=\"\" class=\"wp-image-440\" style=\"width:500px;height:auto\"\/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">PDU\uff08\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\uff09<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><span class=\"swl-marker mark_yellow\">PDU\uff08\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\uff09<\/span><\/strong><br>OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u5404\u5c64\u3067\u3084\u308a\u53d6\u308a\u3055\u308c\u308b\u30c7\u30fc\u30bf\u306e\u5358\u4f4d\u306e\u3053\u3068\u3002\u30c7\u30fc\u30bf\u306e\u547c\u3073\u65b9\u304c\u5c64\u3054\u3068\u306b\u5909\u308f\u308b\u3002<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30ec\u30a4\u30e4<\/th><th>PDU\u540d<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u30ec\u30a4\u30e41\uff08\u7269\u7406\u5c64\uff09<\/td><td>\u30d3\u30c3\u30c8<\/td><td>0\/1\u306e\u96fb\u6c17\u4fe1\u53f7<\/td><\/tr><tr><td>\u30ec\u30a4\u30e42\uff08\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\uff09<\/td><td>\u30d5\u30ec\u30fc\u30e0<\/td><td>\u30b9\u30a4\u30c3\u30c1\u3067\u8ee2\u9001\u3055\u308c\u308b\u5358\u4f4d<\/td><\/tr><tr><td>\u30ec\u30a4\u30e43\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\uff09<\/td><td>\u30d1\u30b1\u30c3\u30c8<\/td><td>\u30eb\u30fc\u30bf\u3067\u8ee2\u9001\u3055\u308c\u308b\u5358\u4f4d<\/td><\/tr><tr><td>\u30ec\u30a4\u30e44\uff08\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\uff09<\/td><td>\u30bb\u30b0\u30e1\u30f3\u30c8\uff08TCP\uff09\/ \u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\uff08UDP\uff09<\/td><td>\u901a\u4fe1\u306e\u4fe1\u983c\u6027\u3084\u5236\u5fa1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">OSI\u53c2\u7167\u30e2\u30c7\u30eb \u5404\u5c64\u306e\u5f79\u5272<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c7\u5c64\uff1a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5f79\u5272<\/strong>\uff1a\u5229\u7528\u3059\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3054\u3068\u306e\u901a\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u5b9a\u7fa9<\/li>\n\n\n\n<li><strong>\u4ee3\u8868\u30d7\u30ed\u30c8\u30b3\u30eb<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>Web\u95b2\u89a7 \u2192 HTTP<\/li>\n\n\n\n<li>\u30e1\u30fc\u30eb\u9001\u4fe1 \u2192 SMTP<\/li>\n\n\n\n<li>\u30e1\u30fc\u30eb\u53d7\u4fe1 \u2192 POP3<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30dd\u30a4\u30f3\u30c8<\/strong>\uff1a\u30e6\u30fc\u30b6\u30fc\u304c\u76f4\u63a5\u89e6\u308c\u308b\u5c64\uff08\u30d6\u30e9\u30a6\u30b6\u3084\u30e1\u30fc\u30e9\u30fc\u306a\u3069\uff09<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c6\u5c64\uff1a\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5f79\u5272<\/strong>\uff1a\u30c7\u30fc\u30bf\u306e\u8868\u73fe\u5f62\u5f0f\u3092\u5909\u63db\uff08\u6587\u5b57\u30b3\u30fc\u30c9\u3001\u5727\u7e2e\u3001\u6697\u53f7\u5316\uff09<\/li>\n\n\n\n<li><strong>\u4f8b<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>Windows\uff1aShift-JIS<\/li>\n\n\n\n<li>UNIX\uff1aEUC<br>\u2192 \u7570\u306a\u308b\u74b0\u5883\u9593\u3067\u3082\u6a19\u6e96\u5f62\u5f0f\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u3067\u6587\u5b57\u5316\u3051\u9632\u6b62<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c5\u5c64\uff1a\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5f79\u5272<\/strong>\uff1a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u9593\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u78ba\u7acb\u30fb\u7dad\u6301\u30fb\u7d42\u4e86<\/li>\n\n\n\n<li><strong>\u4f8b<\/strong>\uff1aWeb\u30d6\u30e9\u30a6\u30b6\u306e\u901a\u4fe1\u3068\u30e1\u30fc\u30e9\u30fc\u306e\u901a\u4fe1\u3092\u5206\u3051\u3066\u7ba1\u7406<\/li>\n\n\n\n<li><strong>\u30dd\u30a4\u30f3\u30c8<\/strong>\uff1a\u30c7\u30fc\u30bf\u3092\u9001\u53d7\u4fe1\u3067\u304d\u308b\u72b6\u614b\u306b\u3059\u308b\u305f\u3081\u306e\u300c\u8ad6\u7406\u7684\u306a\u7d4c\u8def\u300d\u3092\u63d0\u4f9b<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c4\u5c64\uff1a\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5f79\u5272<\/strong>\uff1a\u30c7\u30fc\u30bf\u306e\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3001\u30dd\u30fc\u30c8\u756a\u53f7\u306e\u5272\u308a\u5f53\u3066<\/li>\n\n\n\n<li><strong>\u6a5f\u80fd<\/strong>\uff1a\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u78ba\u7acb\u3001\u30a8\u30e9\u30fc\u5236\u5fa1\u3001\u30d5\u30ed\u30fc\u5236\u5fa1\u3001\u9806\u5e8f\u5236\u5fa1<\/li>\n\n\n\n<li><strong>\u30d7\u30ed\u30c8\u30b3\u30eb<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>TCP\uff1a\u4fe1\u983c\u6027\u3042\u308a<\/li>\n\n\n\n<li>UDP\uff1a\u4fe1\u983c\u6027\u306a\u3057\uff08\u9ad8\u901f\u901a\u4fe1\u5411\u3051\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7528\u8a9e\u6574\u7406<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u30bb\u30c3\u30b7\u30e7\u30f3\uff1a\u30a2\u30d7\u30ea\u9593\u901a\u4fe1\u306e\u5358\u4f4d<\/li>\n\n\n\n<li>\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\uff1a\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306e\u901a\u4fe1\u7d4c\u8def\uff08TCP\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u306a\u3069\uff09<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c3\u5c64\uff1a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5f79\u5272<\/strong>\uff1a\u9001\u4fe1\u5143\u304b\u3089\u5b9b\u5148\u307e\u3067\u306e\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u901a\u4fe1\u3092\u898f\u5b9a<\/li>\n\n\n\n<li><strong>\u624b\u6cd5<\/strong>\uff1a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff08\u6700\u9069\u306a\u7d4c\u8def\u3092\u9078\u629e\u3057\u3066\u30d1\u30b1\u30c3\u30c8\u3092\u5c4a\u3051\u308b\uff09<\/li>\n\n\n\n<li><strong>\u30a2\u30c9\u30ec\u30b9<\/strong>\uff1a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a2\u30c9\u30ec\u30b9\uff08IP\u30a2\u30c9\u30ec\u30b9\uff09\u3092\u5229\u7528<\/li>\n\n\n\n<li><strong>\u6a5f\u5668<\/strong>\uff1a\u30eb\u30fc\u30bf<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c2\u5c64\uff1a\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5f79\u5272<\/strong>\uff1a\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bb\u30b0\u30e1\u30f3\u30c8\u5185\u306e\u96a3\u63a5\u30ce\u30fc\u30c9\u9593\u901a\u4fe1\u3092\u898f\u5b9a<\/li>\n\n\n\n<li><strong>\u6280\u8853<\/strong>\uff1aLAN\u306a\u3089Ethernet\u3001WAN\u306a\u3089PPP\/HDLC<\/li>\n\n\n\n<li><strong>\u30a2\u30c9\u30ec\u30b9<\/strong>\uff1aMAC\u30a2\u30c9\u30ec\u30b9\uff08\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30a2\u30c9\u30ec\u30b9\uff09\u3092\u4f7f\u7528<\/li>\n\n\n\n<li><strong>\u6a5f\u80fd<\/strong>\uff1aFCS\u3067\u30d5\u30ec\u30fc\u30e0\u30a8\u30e9\u30fc\u691c\u51fa<\/li>\n\n\n\n<li><strong>\u6a5f\u5668<\/strong>\uff1a\u30b9\u30a4\u30c3\u30c1<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c1\u5c64\uff1a\u7269\u7406\u5c64<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5f79\u5272<\/strong>\uff1a\u30d3\u30c3\u30c8\u5217\uff080\u30681\uff09\u3092\u96fb\u6c17\u30fb\u5149\u4fe1\u53f7\u306b\u5909\u63db\u3057\u4f1d\u9001<\/li>\n\n\n\n<li><strong>\u9006\u65b9\u5411<\/strong>\uff1a\u53d7\u4fe1\u3057\u305f\u4fe1\u53f7\u3092\u30d3\u30c3\u30c8\u5217\u306b\u623b\u3057\u3066\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u5185\u90e8\u3067\u6271\u3048\u308b\u5f62\u306b\u5909\u63db<\/li>\n\n\n\n<li><strong>\u5225\u540d<\/strong>\uff1aPHY<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u25c6\u307e\u3068\u3081\u30b9\u30e9\u30a4\u30c9<\/h2>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/ccna-curriculum.tech-village.co.jp\/wp-content\/uploads\/2025\/02\/OSI\u53c2\u7167\u30e2\u30c7\u30eb.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"OSI\u53c2\u7167\u30e2\u30c6\u3099\u30eb\u306e\u57cb\u3081\u8fbc\u307f\u3002\"><\/object><a id=\"wp-block-file--media-cd60bb2f-9594-41d3-a2b4-308a25756307\" href=\"https:\/\/ccna-curriculum.tech-village.co.jp\/wp-content\/uploads\/2025\/02\/OSI\u53c2\u7167\u30e2\u30c7\u30eb.pdf\">OSI\u53c2\u7167\u30e2\u30c6\u3099\u30eb<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>OSI\u53c2\u7167\u30e2\u30c7\u30eb\u3068\u306f \u6b74\u53f2 OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u968e\u5c64 \u30ec\u30a4\u30e4 \u540d\u79f0 \u4e3b\u306a\u5f79\u5272 PDU\uff08\u30c7\u30fc\u30bf\u5358\u4f4d\uff09 \u7b2c7\u5c64 \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64 \u30e6\u30fc\u30b6\u30fc\u306b\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\uff08Web, \u30e1\u30fc\u30eb\u306a\u3069\uff09 \u30c7\u30fc\u30bf \u7b2c6\u5c64 \u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64 \u30c7\u30fc\u30bf [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[11],"tags":[],"class_list":["post-86","post","type-post","status-publish","format-standard","hentry","category-network"],"_links":{"self":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/86","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=86"}],"version-history":[{"count":8,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/86\/revisions"}],"predecessor-version":[{"id":575,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/86\/revisions\/575"}],"wp:attachment":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=86"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=86"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=86"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}