Reference no: EM13774101
A(n) ____ increases a signal's strength (amplitude) and can extend a signal's range by boosting signal power to overcome attenuation.
Square waves can be generated by rapidly switching (pulsing) an electrical or optical power source-a technique called ____.
A(n) ____ is the maximum number of bits or bytes per second that the channel can carry.
Messages can be loosely categorized into two types-data messages and command messages.
____ mode uses a single shared channel, and each node takes turns using the transmission line to transmit and receive.
Noise can be introduced into copper, aluminum, and other wire types by ____.
In DCE, the security server issues security "____" to each party that are exchanged to verify identities.
Servers can be offline or idle except when needed to access client resources.
With ____, a resource user asks for a resource, and if it isn't found in the local resource registry, the resource locator searches for it in external locations.
With the ____ protocol, a process on one machine can call a process on another machine
With P2P architecture, there are more potential bottlenecks and points of failure.
A server manages system resources and provides access to these resources through a well-defined communication interface.
Static connections are easy to initialize and maintain.
Web resources are identified by a unique ____.
If the logical record size is less than the physical record size, a single physical record might contain multiple logical records.
A ____ is a temporary holding area for extracting logical records from physical records.
The directory that's currently being accessed is called the ____ directory
The ____ contains a sequential set of file records, one for each file in the volume
Physical storage allocation considerations include placement of fields and records in a file and distribution of a file across storage locations, media, or devices.
A typical computer has up to a few hundred storage volumes.
With scripting languages, programmers can assemble application software rapidly by "gluing" together the capabilities of many other programs.
Software has surpassed hardware to become the most costly component of most information systems.
A ____ defines the name and data type of program variables
Class models and other types of diagrams document user and system requirements
A ____ is a nonprocedural language suitable for developing software that mimics human intelligence.
A ____ uses mnemonics to represent instructions, variables, and labels and has a degree of instruction explosion higher than 1:1.
____ make forwarding decisions by using layer 3 addresses.
The oldest and most widely used VoIP protocol suite is ____.
The written format of 128-bit IP addresses is called ____ notation.
____ is a connectionless protocol that provides less reliable transport services.
Star topologies now dominate physical network topology for wired networks.
The OSI model predates the TCP/IP model by almost a decade.
A reference to a page held in memory is called a ____.
In ____ memory allocation, each process partition has its own offset value.
____ scheduling chooses the next thread to be dispatched based on the expected amount of CPU time needed to complete the process.
When considered as a byte sequence, the rightmost byte is called the most significant byte.
____ occurs when memory partitions allocated to a single process or purpose are scattered throughout physical memory.
In explicit priority scheduling, the scheduler always dispatches the ready thread that has been waiting the longest.\
In accounting, ____ is the process of examining records to determine whether generally accepted accounting principles were applied correctly in preparing financial reports.
Computer and software purchases are capital expenditures, even though the expected useful lifetime of computer hardware and software has decreased in recent years because of rapid technological change.
____ can be seen in the home when air conditioners, refrigerators, and electric dryers are started and cause a momentary dimming of lights.
____ is the process of determining whether an authenticated user or process has enough rights to access a resource.
A(n) longer-term power sag that is often caused by the power provider is known as a ____.
A ____ consists of a digitizing tablet and a pen, stylus, or both.
Early plasma displays accepted the same analog video signals as CRTs.
____ is a standard for storing and transporting control information between computers and electronic musical instruments.
A(n) ____ is a microprocessor specialized for processing continuous streams of audio or graphical data.
On paper, pixel size corresponds to the smallest drop of ink that can be placed accurately on the page.
For video display, a pixel displays no light or light of a specific color and intensity.
The process of converting analog sound waves to digital representation is called ____.