6-22.
Twisted pair cable used in a
LAN has which of the following
advantages?
1. High data transmission
speeds
2.
Low costs and easy to
install
3.
Shielded from electrical
interference
4.
Secure data transmission
6-23.
In designing a LAN system that
requires the transmission of
digital data, audio, and video
simultaneously, which of the
following cables would be best
suited to the system?
1.
Twisted pair
2.
Shielded twisted pair
3.
Broadband coaxial
4.
Baseband coaxial
6-24.
Which of the following types of
cable is immune to interference
from electrical and electronic
devices?
1.
Fiber optic
2.
Baseband coaxial
3.
Shielded twisted pair
4.
Telephone cable
6-25.
Which of the following devices
provides the interface between
the LAN and a personal
computer?
1. Network server
2.
NIC
3.
Disk server
4.
Cables
6-26.
Which of the following devices
is used to manage the shared
resources of the LAN?
1. Network server
2. NIC
3. Disk server
4. Network monitor
6-27.
Early disk servers suffered
from which of the following
problems?
1.
Lack of security
2. No data organization
3. No disk management
4. All of the above
6-28.
6-29.
6-30.
6-31.
6-32.
34
Ensuring data integrity by
preventing multiple users
access to the same record at
the same time is known as what
process?
1.
File locking
2.
Field locking
3.
Record locking
4. Disk lockout
Which of the following servers
was developed to provide
reliable disk management in a
LAN?
1. Disk server
2.
Print server
3.
File server
4. Network server
Which of the following
functions is NOT performed by
the file server?
1. Routing files to a central
printer for printing
2. Processing of the network
control software
3. Converting high-level disks
calls from a workstation to
low-level disk commands
4. Maintaining the list of user
privileges and
authorizations
When designing and building a
LAN system, all workstations
must be from the same
manufacturer.
1. True
2. False
The OSI reference model is used
to define which of the
following communications
standards?
1.
2.
3.
4.
Interconnection of
communications facilities
Software
Hardware
Protocol
