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ccna discovery 2 chapter 2 v4.1
1. Which two functions are provided by the upper layers of the OSI model?
(Choose two.)
placing electrical signals on the medium for transmission
**initiating the network communication process
**encrypting and compressing data for transmission
segmenting and identifying data for reassembly at the destination
choosing the appropriate path for the data to take through the network
2. Which is a function of the transport layer of the OSI model?
routes data between networks
converts data to bits for transmission
**delivers data reliably across the network using TCP
formats and encodes data for transmission
transmits data to the next directly connected device
3. Which common Layer 1 problem can cause a user to lose connectivity?
incorrect subnet mask
incorrect default gateway
**loose network cable
NIC improperly installed
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