{"id":92909,"date":"2025-06-01T11:36:21","date_gmt":"2025-06-01T11:36:21","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=92909"},"modified":"2025-06-01T11:36:21","modified_gmt":"2025-06-01T11:36:21","slug":"which-osi-layer-is-not-part-of-tcp-ip-model","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-osi-layer-is-not-part-of-tcp-ip-model\/","title":{"rendered":"Which OSI layer is *not* part of TCP\/IP model ?"},"content":{"rendered":"<p>Which OSI layer is *not* part of TCP\/IP model ?<\/p>\n<p>[amp_mcq option1=&#8221;Application layer&#8221; option2=&#8221;Session layer&#8221; option3=&#8221;Network layer&#8221; option4=&#8221;Physical layer&#8221; correct=&#8221;option2&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC CISF-AC-EXE &#8211; 2020<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-cisf-ac-exe-2020.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-cisf-ac-exe-2020\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nThe OSI (Open Systems Interconnection) model has seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.<br \/>\nThe TCP\/IP model is typically described with four layers: Network Interface (or Link), Internet, Transport, and Application. Sometimes a five-layer model is used, splitting the Network Interface layer into Physical and Data Link.<br \/>\nComparing the models:<br \/>\n&#8211; OSI Physical and Data Link correspond to TCP\/IP Network Interface\/Link (or Physical and Data Link).<br \/>\n&#8211; OSI Network corresponds to TCP\/IP Internet.<br \/>\n&#8211; OSI Transport corresponds to TCP\/IP Transport.<br \/>\n&#8211; OSI Application corresponds to TCP\/IP Application, but the TCP\/IP Application layer encompasses the functions of the OSI Session, Presentation, and Application layers.<br \/>\nThe OSI Session layer and Presentation layer do not have distinct corresponding layers in the standard TCP\/IP model; their functions are integrated into other layers (primarily the Application layer). Among the options provided, the Session layer is the one from the OSI model that is not a separate layer in the TCP\/IP model.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\n&#8211; OSI has 7 layers, TCP\/IP has 4 or 5 layers.<br \/>\n&#8211; TCP\/IP combines functions of some OSI layers into its own layers.<br \/>\n&#8211; OSI Session and Presentation layers are not distinct layers in the TCP\/IP model.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nWhile TCP\/IP is the dominant model for the internet, the OSI model is still valuable for understanding networking concepts and relationships between different functions.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Which OSI layer is *not* part of TCP\/IP model ? [amp_mcq option1=&#8221;Application layer&#8221; option2=&#8221;Session layer&#8221; option3=&#8221;Network layer&#8221; option4=&#8221;Physical layer&#8221; correct=&#8221;option2&#8243;] This question was previously asked in UPSC CISF-AC-EXE &#8211; 2020 Download PDFAttempt Online The OSI (Open Systems Interconnection) model has seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. The TCP\/IP model is &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Which OSI layer is *not* part of TCP\/IP model ?\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-osi-layer-is-not-part-of-tcp-ip-model\/#more-92909\">Detailed Solution<span class=\"screen-reader-text\">Which OSI layer is *not* part of TCP\/IP model ?<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1089],"tags":[1288,1113],"class_list":["post-92909","post","type-post","status-publish","format-standard","hentry","category-upsc-cisf-ac-exe","tag-1288","tag-information-and-communication-technology","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Which OSI layer is *not* part of TCP\/IP model ?<\/title>\n<meta name=\"description\" content=\"The OSI (Open Systems Interconnection) model has seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. The TCP\/IP model is typically described with four layers: Network Interface (or Link), Internet, Transport, and Application. Sometimes a five-layer model is used, splitting the Network Interface layer into Physical and Data Link. Comparing the models: - OSI Physical and Data Link correspond to TCP\/IP Network Interface\/Link (or Physical and Data Link). - OSI Network corresponds to TCP\/IP Internet. - OSI Transport corresponds to TCP\/IP Transport. - OSI Application corresponds to TCP\/IP Application, but the TCP\/IP Application layer encompasses the functions of the OSI Session, Presentation, and Application layers. The OSI Session layer and Presentation layer do not have distinct corresponding layers in the standard TCP\/IP model; their functions are integrated into other layers (primarily the Application layer). Among the options provided, the Session layer is the one from the OSI model that is not a separate layer in the TCP\/IP model. - OSI has 7 layers, TCP\/IP has 4 or 5 layers. - TCP\/IP combines functions of some OSI layers into its own layers. - OSI Session and Presentation layers are not distinct layers in the TCP\/IP model.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-osi-layer-is-not-part-of-tcp-ip-model\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which OSI layer is *not* part of TCP\/IP model ?\" \/>\n<meta property=\"og:description\" content=\"The OSI (Open Systems Interconnection) model has seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. The TCP\/IP model is typically described with four layers: Network Interface (or Link), Internet, Transport, and Application. Sometimes a five-layer model is used, splitting the Network Interface layer into Physical and Data Link. Comparing the models: - OSI Physical and Data Link correspond to TCP\/IP Network Interface\/Link (or Physical and Data Link). - OSI Network corresponds to TCP\/IP Internet. - OSI Transport corresponds to TCP\/IP Transport. - OSI Application corresponds to TCP\/IP Application, but the TCP\/IP Application layer encompasses the functions of the OSI Session, Presentation, and Application layers. The OSI Session layer and Presentation layer do not have distinct corresponding layers in the standard TCP\/IP model; their functions are integrated into other layers (primarily the Application layer). Among the options provided, the Session layer is the one from the OSI model that is not a separate layer in the TCP\/IP model. - OSI has 7 layers, TCP\/IP has 4 or 5 layers. - TCP\/IP combines functions of some OSI layers into its own layers. - OSI Session and Presentation layers are not distinct layers in the TCP\/IP model.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-osi-layer-is-not-part-of-tcp-ip-model\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T11:36:21+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Which OSI layer is *not* part of TCP\/IP model ?","description":"The OSI (Open Systems Interconnection) model has seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. The TCP\/IP model is typically described with four layers: Network Interface (or Link), Internet, Transport, and Application. Sometimes a five-layer model is used, splitting the Network Interface layer into Physical and Data Link. Comparing the models: - OSI Physical and Data Link correspond to TCP\/IP Network Interface\/Link (or Physical and Data Link). - OSI Network corresponds to TCP\/IP Internet. - OSI Transport corresponds to TCP\/IP Transport. - OSI Application corresponds to TCP\/IP Application, but the TCP\/IP Application layer encompasses the functions of the OSI Session, Presentation, and Application layers. The OSI Session layer and Presentation layer do not have distinct corresponding layers in the standard TCP\/IP model; their functions are integrated into other layers (primarily the Application layer). Among the options provided, the Session layer is the one from the OSI model that is not a separate layer in the TCP\/IP model. - OSI has 7 layers, TCP\/IP has 4 or 5 layers. - TCP\/IP combines functions of some OSI layers into its own layers. - OSI Session and Presentation layers are not distinct layers in the TCP\/IP model.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/which-osi-layer-is-not-part-of-tcp-ip-model\/","og_locale":"en_US","og_type":"article","og_title":"Which OSI layer is *not* part of TCP\/IP model ?","og_description":"The OSI (Open Systems Interconnection) model has seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. The TCP\/IP model is typically described with four layers: Network Interface (or Link), Internet, Transport, and Application. Sometimes a five-layer model is used, splitting the Network Interface layer into Physical and Data Link. Comparing the models: - OSI Physical and Data Link correspond to TCP\/IP Network Interface\/Link (or Physical and Data Link). - OSI Network corresponds to TCP\/IP Internet. - OSI Transport corresponds to TCP\/IP Transport. - OSI Application corresponds to TCP\/IP Application, but the TCP\/IP Application layer encompasses the functions of the OSI Session, Presentation, and Application layers. The OSI Session layer and Presentation layer do not have distinct corresponding layers in the standard TCP\/IP model; their functions are integrated into other layers (primarily the Application layer). Among the options provided, the Session layer is the one from the OSI model that is not a separate layer in the TCP\/IP model. - OSI has 7 layers, TCP\/IP has 4 or 5 layers. - TCP\/IP combines functions of some OSI layers into its own layers. - OSI Session and Presentation layers are not distinct layers in the TCP\/IP model.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-osi-layer-is-not-part-of-tcp-ip-model\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T11:36:21+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-osi-layer-is-not-part-of-tcp-ip-model\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-osi-layer-is-not-part-of-tcp-ip-model\/","name":"Which OSI layer is *not* part of TCP\/IP model ?","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T11:36:21+00:00","dateModified":"2025-06-01T11:36:21+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The OSI (Open Systems Interconnection) model has seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. 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