Which of the following best describes Logical Link Control (LLC)?<\/p>\n\n\n\n
A. It is a Layer 1 protocol.<\/p>\n\n\n\n
B. It is a sublayer of the Data Link layer.<\/p>\n\n\n\n
C. It remembers the NIC\u2019s MAC address.<\/p>\n\n\n\n
D. It controls open network sessions.<\/p>\n\n\n\n
The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n Correct Answer: B. It is a sublayer of the Data Link layer.<\/strong><\/p>\n\n\n\n Logical Link Control (LLC) is a crucial component of computer networking that operates at Layer 2<\/strong>, the Data Link layer<\/strong>, of the OSI (Open Systems Interconnection)<\/strong> model. More specifically, LLC is one of the two sublayers of the Data Link layer<\/strong>, the other being the Media Access Control (MAC)<\/strong> sublayer.<\/p>\n\n\n\n The LLC sublayer is primarily responsible for managing communications between devices over a network. It provides logical addressing and control mechanisms<\/strong> that allow multiple network protocols<\/strong> (such as IP, IPX, or AppleTalk) to share the same physical network medium. This is achieved by using Service Access Points (SAPs)<\/strong> that help identify the protocol being used.<\/p>\n\n\n\n Whereas the MAC sublayer handles the physical addressing<\/strong> (using MAC addresses) and controls access to the network medium (like Ethernet), the LLC handles error checking, frame synchronization, and flow control<\/strong>. It ensures that the data sent over the network is reliable and correctly formatted for the higher-layer protocols.<\/p>\n\n\n\n In summary, LLC provides an interface between the network layer protocols and the MAC sublayer, offering important services like flow control and error handling, making option B<\/strong> the most accurate description.<\/p>\n","protected":false},"excerpt":{"rendered":" Which of the following best describes Logical Link Control (LLC)? A. It is a Layer 1 protocol. B. It is a sublayer of the Data Link layer. C. It remembers the NIC\u2019s MAC address. D. It controls open network sessions. The correct answer and explanation is : Correct Answer: B. It is a sublayer of […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-210145","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/210145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=210145"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/210145\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=210145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=210145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=210145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Explanation:<\/h3>\n\n\n\n
Purpose of LLC:<\/h4>\n\n\n\n
Why the other options are incorrect:<\/h4>\n\n\n\n
\n
Incorrect. Layer 1 refers to the Physical layer<\/strong>, which deals with transmission media, signals, and hardware, not logical addressing or error checking.<\/li>\n\n\n\n
Incorrect. The MAC address is managed by the MAC sublayer<\/strong> of the Data Link layer, not the LLC.<\/li>\n\n\n\n
Incorrect. Controlling open sessions is the responsibility of the Session layer (Layer 5)<\/strong> of the OSI model, not the LLC.<\/li>\n<\/ul>\n\n\n\n