Exam 12: Lan Architecture and Infrastructure

Which of the following is NOT one of the characteristics of a building wiring scheme using a structured cabling system?

A __________ can be described as a separate network of storage devices that are physically removed from,but still connected to,the network.

Coaxial cable is less susceptible to electromagnetic interference, but more expensive,when compared with twisted pair cables.

The requirement for networking capability within the individual building is just as strong as the requirement for wide area networking.

Guided media provide a physical path along which the signals are propagated; these include twisted pair,coaxial cable,and optical fiber.

A service provided as an alternative for attached devices using LLC is:

Which of the following is NOT one of the typical characteristics of back-end networks?

A factory ________ should be: of high capacity,able to handle a variety of data traffic,capable of having a large geographic footprint,highly reliable,and able to specify and control transmission delays.

The kinds of data processing equipment to be supported in a typical business organization can be grouped into three categories: personal computers and workstations,server farms,and _________.

A LAN consists of a shared transmission medium and a set of hardware and software for interfacing devices to the medium and regulating the orderly access to the medium.

Problems with using a single Local Area Network (LAN)to interconnect devices on a premise include:

To aid in the development of cabling plans,standards have been issued that specify the cabling types and layout for office,data center,and apartment buildings; these standards are referred to as __________.

The lowest layer of the IEEE 802 reference model corresponds to the ____________ of the OSI model and includes such functions as encoding / decoding of signals and bit transmission / reception.

One of the advantages of having a bottom up approach to building a LAN is that individual managers are very close to the group and therefore understand the needs of the department and can respond quickly.

Two different types of light source are used in fiber optic systems: LED and

Which of the following is NOT one of the distinguishing characteristics for optical fiber cables compared with twisted pair or coaxial cables?

Ethernet requires that each segment be no more than ___________ in length, including the installed cabling and patch cables at either end,for 10-Mbps and 100-Mbps transmissions.

In a data transmission system,the __________ is the physical path between transmitter and receiver.

Twisted pair wires are immune from all interference due to electromagnetic coupling because of the twisting of the wires.

The atmosphere and outer space are examples of unguided media,which provide a means of transmitting electromagnetic signals but do not guide them; this form of transmission is usually referred to as ___________.