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

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

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
The fundamental requirements of private-to-public network interconnection methods which need to be provided in gateways is/are

universal accessibility for private network Data Terminal Equipment (DTE)
A and B both
None of these
to assign address to private network DTEs
adequate cost control mechanisms for administration of the private networks

ANSWER DOWNLOAD EXAMIANS APP