| Verified | Latest 2024 Version
Which of the following is not true about de facto standards?
A. They never evolve into de jure standards.
B. They are those standards that emerge in the marketplace.
C. They tend not to be developed by an official industry or government body.
D. They are generally supported by more than one vendor but de facto standards have no official
standing.
E. They tend to emerge based upon the needs/response of the marketplace. - ✔✔A. They never evolve
into de jure standards.
A(n) ___________ is similar to an intranet in that it uses Internet technologies, but is developed for users
outside the organization.
A. intranet
B. Usenet
C. Wide Area Network
D. Extranet - ✔✔D. Extranet
Due to recent advances in high speed communication networks, the information lag, or the time it takes
for information to be disseminated around the world, has been significantly shortened.
(T/F) - ✔✔True
Which of the following is not an important future trend in communication and networking?
A. development of online batch systems
B. integration of voice, video, and data
, C. pervasive networking
D. provision of new information services on rapidly expanding networks
E. development of extremely high speed broadband networks - ✔✔A. development of online batch
systems
___________ is an orderly close to a dialogue between end users.
A. Session termination
B. Physical bits
C. Frame overhead
D. Packet encapsulation
E. Message encryption - ✔✔A. Session termination
Which of the following is not a property of a WAN:
A. connects backbone networks and MANS.
B. spans hundreds or thousands of miles
C. provides data transmission speeds from 56Kbps to 10Gbps.
D. connects a group of computers in a small geographic area such as room, floor, building or campus.
E. uses leased lines from IXCs like ATT, MCI, and Sprint. - ✔✔D. connects a group of computers in a small
geographic area such as room, floor, building or campus.
A local area network (LAN) connects other LANs and BNs located in different areas to each other and to
wide area networks in a span from 3 to 30 miles.
(T/F) - ✔✔False
Which standards body is responsible for the development of local area network (LAN) standards?
A. ANSI
B. ISO