Review for Final #4

In an analog addressable system, the determination of the alarm state is performed by the

control panel

The data bus serves as a

parallel data path

An access control method that depends on a random time interval delay to recover from a data collision is known as the

stochastic method

To facilitate parallel communications, data is divided into multiple

streams

The maximum data transfer rate available with USB 2.0 is

480Mbps

An RS-232 cable can be used for distances up to

50 feet

Which is the following is a correct statement about power line carrier systems?

A computer can be used to program and monitor PLC systems

The layer of the OSI model that directly interacts with user's software programs is the

Application layer

In the OSI model, the layer that forms information into strings or blocks and puts each piece of information in the right place is the

Data link layer

The IP portion of TCP/IP provides

Data segmentation

Which of the following correctly describes a power line carrier system function?

Data signals are imposed on the AC power wiring

The disadvantage of a ring network is

If a node fails, the network is at least partially disabled

In the OSI model, cables and connectors are considered part of the

Physical layer

In a distributed control system, access to the medium is controlled at each

Station or Node

A system that permits discrete identification of alarm signals at the detector level is a(n)

addressable

A device used to link networks that use different protocols is a

bridge

A secondary bus is connected to a primary bus by a communication module that is sometimes called a

bridge

The joining of two or more computers with a communication link forms a(n)

network

A token-passing access scheme handles emergency conditions through the use of

priority settings

A receiving device has a set of memory locations called

registers

To prevent the potential bottlenecks of the star topology, some networks arrange their nodes in a

ring topology

The device used to link multiple data paths through a series of interconnected networks is the

router

Which of these network devices often includes a firewall?

router

The type of network technology that requires a hub is the

star network

Controllers in a network can share information because

they use a common language