{"id":6911,"date":"2020-12-06T15:44:10","date_gmt":"2020-12-06T20:44:10","guid":{"rendered":"http:\/\/community.mis.temple.edu\/mis5211sec702fall2020\/?p=6911"},"modified":"2020-12-06T15:51:43","modified_gmt":"2020-12-06T20:51:43","slug":"week-2-reading-and-in-the-news","status":"publish","type":"post","link":"https:\/\/community.mis.temple.edu\/mis5211sec702fall2020\/2020\/12\/06\/week-2-reading-and-in-the-news\/","title":{"rendered":"Week 2 Reading"},"content":{"rendered":"<p><span style=\"font-weight: 400\">Week 2:\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Readings:\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">The Open Systems Interconnection (OSI) model describes seven layers that computer systems use to communicate over a network. There are 7 layers in the OSI model\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Application Layer<\/span><\/p>\n<p><span style=\"font-weight: 400\">Presentation Layer\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Session Layer\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Transport Layer\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Network Layer\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Data Link Layer\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Physical Layer\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">The Application layer is the top most layer of TCP\/IP Model that provides the interface between the applications and network. Application layer is used exchange messages. Some of the devices used in Application layer are,<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><i><span style=\"font-weight: 400\">PC\u2019s (Personal Computer), Phones, Servers<\/span><\/i><\/li>\n<li style=\"font-weight: 400\"><i><span style=\"font-weight: 400\">Gateways and Firewalls<\/span><\/i><\/li>\n<\/ul>\n<p><i><span style=\"font-weight: 400\">Transport layer is responsible for end-to-end communication (or process-to-process communication). Some of the transport layer devices are, Firewalls and Gateways The network layer is responsible for creating routing table, and based on routing table, forwarding of the input request. Some of the Devices used in Network Layer are, Routers. <\/span><\/i><i><span style=\"font-weight: 400\">A router helps you connect multiple devices to the Internet, and connect the devices to each other<\/span><\/i><\/p>\n<p>&nbsp;<\/p>\n<p><i><span style=\"font-weight: 400\">Data Link layer is responsible to transfer data hop by hop (i.e within the same LAN, from one device to another device) based on the MAC address. Some of the devices used in Data Link layer are, Bridges, Modems and Internet Cards\u00a0<\/span><\/i><\/p>\n<p><i><span style=\"font-weight: 400\">Physical layer of TCP\/IP model is responsible for physical connectivity of two devices. Some of the devices used in Physical layers are, Cables, Hubs and Repeaters\u00a0<\/span><\/i><\/p>\n<p>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400\">.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Week 2:\u00a0 Readings:\u00a0 The Open Systems Interconnection (OSI) model describes seven layers that computer systems use to communicate over a network. There are 7 layers in the OSI model\u00a0 Application Layer Presentation Layer\u00a0 Session Layer\u00a0 Transport Layer\u00a0 Network Layer\u00a0 Data Link Layer\u00a0 Physical Layer\u00a0 The Application layer is the top most layer of TCP\/IP Model [&hellip;]<\/p>\n","protected":false},"author":25069,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[714826],"tags":[],"class_list":{"0":"post-6911","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-week-02-its-role-the-control-environment","7":"entry"},"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/community.mis.temple.edu\/mis5211sec702fall2020\/wp-json\/wp\/v2\/posts\/6911","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/community.mis.temple.edu\/mis5211sec702fall2020\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/community.mis.temple.edu\/mis5211sec702fall2020\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/community.mis.temple.edu\/mis5211sec702fall2020\/wp-json\/wp\/v2\/users\/25069"}],"replies":[{"embeddable":true,"href":"https:\/\/community.mis.temple.edu\/mis5211sec702fall2020\/wp-json\/wp\/v2\/comments?post=6911"}],"version-history":[{"count":3,"href":"https:\/\/community.mis.temple.edu\/mis5211sec702fall2020\/wp-json\/wp\/v2\/posts\/6911\/revisions"}],"predecessor-version":[{"id":6914,"href":"https:\/\/community.mis.temple.edu\/mis5211sec702fall2020\/wp-json\/wp\/v2\/posts\/6911\/revisions\/6914"}],"wp:attachment":[{"href":"https:\/\/community.mis.temple.edu\/mis5211sec702fall2020\/wp-json\/wp\/v2\/media?parent=6911"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/community.mis.temple.edu\/mis5211sec702fall2020\/wp-json\/wp\/v2\/categories?post=6911"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/community.mis.temple.edu\/mis5211sec702fall2020\/wp-json\/wp\/v2\/tags?post=6911"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}