Exam 6: Data Communication: Delivering Information Anywhere and Anytime

Describe the responsibilities of the transport layer of the Open Systems Interconnection (OSI) model.

Computers in a local area network (LAN) are usually connected to the network via a(n) _____,which is a hardware component.

List the three main components of a typical data communication system.

A star topology uses a large number of cables to connect the nodes within a network.

In _____ processing,each department has its own computer for performing processing tasks.

A bus topology connects nodes along a network segment,with the ends connected in a manner similar to a ring topology.

The amount of data that can be transferred from one point to another in one second is called _____.

_____ are rules that govern data communication,including error detection,message length,and transmission speed.

_____ is a voice-grade transmission channel capable of transmitting a maximum of 56,000 bps,so only a limited amount of information can be transferred in a specific period of time.

Describe an intelligent terminal.

The Wi-Fi Protected Access (WPA2) uses _____ to obtain a master key,which is in turn used to negotiate for a key that will be used for a session.

A router operates at the Application layer of the Open Systems Interconnection (OSI) model.

Both Wireless LANs (WLANs) and Wireless WANs (WWANs) rely on the _____ as the communication medium.

Radiated media use a fiber-optic cable for transmitting data through air or water.

Explain the advantages of distributed processing.

Describe a star topology.

The Transmission Control Protocol (TCP) operates at the Open Systems Interconnection (OSI) model's _____ layer.

Describe the two categories of wireless technologies.

Data transmission channels are generally divided into two types: broadband and narrowband.

Communication media are used to connect sender and receiver devices.