Exam 12: Lan Architecture and Infrastructure

One rationale for not employing Local Area Network (LAN) technology for an entire premise is because there are differing levels of equipment,such as PCs,servers,and mainframes.

Sometimes called computer room networks,__________ networks are used to interconnect large systems such as mainframes,supercomputers,and mass storage devices that typically need to transfer large volumes of data between one another.

With __________,the waves are guided along a solid medium,such as copper twisted pair,copper coaxial cable,or optical fiber.

The fact that signal strength falls off with distance is called ________________.

The capacity of optical fiber cable is more than 1000 times greater than coaxial cables.

The function of a __________ protocol is to control access to the transmission medium and to provide an orderly and efficient use of that capacity.

In most _______________ protocols,the data link protocol entity is responsible not only for detecting errors using the CRC,but for recovering from those errors by retransmitting damaged frames.

When examining a MAC frame of data,starting with the first bit,which of the following describes the order of the various headers found in the frame?

A design factor relating to the transmission medium and the signal to determine the data rate and distance is:

Higher-level data,such as an IP datagram,are passed down to LLC,which appends control information as a header,creating an LLC ___________.

Back-end networks are used in situations where a few large computers must be connected for low-volume data transfers.

Which of following is NOT one of the designs that determines data rate and distance?

Even for large companies,isolated personal computers are often more than sufficient for current computer based tasks.

__________ are the termination points for all of the cabling and where the networking equipment will be located.

Drawbacks to a single-LAN strategy are: reliability,capacity,and _________.

Which of the following is a characteristic of a backend network?

A ___________ is a separate network to handle storage needs.

A Storage Area Network (SAN)is a network specifically designed to allow specific servers the ability to share local storage devices with each other.

LAN protocol architectures are more concerned with cabling infrastructure and less concerned with providing services needed by network attached devices to share the LAN transmission medium.

The major difference between Category 3 UTP and Category 5 UTP is that the latter uses a larger sized wire for the conductors.