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What is a "preamble" in IEEE 802.3 frame? a. an indication of the end of a frame b. an indication of the start of a new frame c. an indication of congestion d. an indication of a corrupted frame

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Define firewalls?

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Which host - delivers mail between domains.

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Which 3 layers are missing in TCP/IP ? a. Physical b. data link c. network d. transport e. session f. presentation g. application

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Which comamnd will yield the current dhcp information on the DHCP server ?

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What does the transport protocol do? a. It defines how data should be presented to the next receiving layer, packages the data accordingly, ad then passes data to the application though the session layer interface. b. It provides low-level access to network adapters by providing data transmission support and some basic adapter management functions c. It supports communications between applications on different computers by creating sessions, defining data-exchange formats, and providing application-support services d. It is responsible for establishing logical names on the network, establishing connections between two logical names on the network, and supporting reliable data transfer between computers that have established a session

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Define rip?

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what is the difference b/w CIDR AND VLSM?

2 Answers   TCS,

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What provides application program interface between OSI transport session layers.

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what is the AD value of Static route?(cisco)

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howmany layers in the OSI model.

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Command to troubleshoot DNS problems Host name resolution problems:

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