CCNA - OSI
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| At what layers do gateways function at? | the Transport layer and above
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| What layer provides network access for applications? | the Application layer
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| What layer provides flow control? | the TRANSPORT layer
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| What layer establishes the availability of other computers on the network? | the Application layer
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| What layer determines if sufficient resources exist for communication to occur between two computers? | the Application layer
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| What layer does SMTP function at? | the Application layer
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| What layer does FTP function at? | the Application layer
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| What layer does SNMP function at? | the Application layer
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| What layer does Telnet function at? | the Application layer
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| what layer does Appletalk function at? | the Application layer
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| What layer performs protocol conversion? | the Presentation layer
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| What layer performs encryption? | the Presentation layer
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| What layer performs compression? | the Presentation layer
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| What layer synchronizes computers involved in a communication? | the Session layer
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| What layer handles connection establishment | data transfer
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| What layer does NetBIOS function at? | the Session layer
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| What layer repackages messages into smaller formats? | the Transport layer
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| What layer provides error-free delivery and error handling functions? | the Transport layer
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| What layers does NetBEUI function at? | the Transport and Network layers
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| What layer does TCP function at? | the Transport layer
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| What layer does SPX function at? | the Transport layer
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| What layers does NWLink function at? | the Transport and Network layers
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| What layer handles logical addressing? | the Network layer
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| What layer handles routing? | the Network layer
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| What layer handles traffic management? | the Network layer
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| What layer does IP function at? | the Network layer
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| What layer does IPX function at? | the Network layer
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| What devices function at the Network layer? | rounters and brouters
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| What layer packages raw bits into frames? | the Data Link layer
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| What is the purpose of packaging raw bits into frames? | they are transmittable across a network
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| What layer includes a Cyclical Redundancy Check (CRC)? | the Data Link layer
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| What are the two sublayers of the Data Link layer? | the Logical Link Control (LLC) and the MAC sublayers
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| What does the LLC sublayer use to create links for the MAC sublayer? | Destination Service Access Points and Source Service Access Points
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| What devices function at the Data Link layer? | switches
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| What devices function at the Physical layer? | multiplexers and repeaters
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| How many bits are in a MAC address? | 48 bits
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| What protocol is used to map MAC addresses to IP addresses? | ARP
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