Computer Networking
The data-link layer, in reference to the OSI model, specifies

the interface between the X.25 network and packet mode device
data link procedures that provide for the exchange of data via frames that can be sent and received
None of these
the virtual circuit interface to packet-switched service
All of these

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
A T-switch is used to

rearrange the connections between computing equipment
None of these
control how messages are passed between computers
transmit characters one at a time
echo every character that is received

ANSWER DOWNLOAD EXAMIANS APP