CIS 312 Final Exam Answers

CIS 312 Final Exam Answers

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CIS 312 Final Exam Answers

• Question 1
A(n) ____ increases a signal’s strength (amplitude) and can extend a signal’s range by boosting signal power to overcome attenuation.

• Question 2
Square waves can be generated by rapidly switching (pulsing) an electrical or optical power source—a technique called ____.

• Question 3
A(n) ____ is the maximum number of bits or bytes per second that the channel can carry.

• Question 4
Messages can be loosely categorized into two types—data messages and command messages.

• Question 5
____ mode uses a single shared channel, and each node takes turns using the transmission line to transmit and receive.

• Question 6
Noise can be introduced into copper, aluminum, and other wire types by ____.

• Question 7
In DCE, the security server issues security “____” to each party that are exchanged to verify identities.

• Question 8
Servers can be offline or idle except when needed to access client resources.

• Question 9
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.

• Question 10
With the ____ protocol, a process on one machine can call a process on another machine.

• Question 11
With P2P architecture, there are more potential bottlenecks and points of failure.

• Question 12
A server manages system resources and provides access to these resources through a well-defined communication interface.

• Question 13
Static connections are easy to initialize and maintain.

• Question 14
Web resources are identified by a unique ____.

• Question 15
If the logical record size is less than the physical record size, a single physical record might contain multiple logical records.

• Question 16
A ____ is a temporary holding area for extracting logical records from physical records.

• Question 17
The directory that’s currently being accessed is called the ____ directory

• Question 18
The ____ contains a sequential set of file records, one for each file in the volume.

• Question 19
Physical storage allocation considerations include placement of fields and records in a file and distribution of a file across storage locations, media, or devices.

• Question 20
A typical computer has up to a few hundred storage volumes.

• Question 21
With scripting languages, programmers can assemble application software rapidly by “gluing” together the capabilities of many other programs.

• Question 22
Software has surpassed hardware to become the most costly component of most information systems.

• Question 23
A ____ defines the name and data type of program variables.

• Question 24
Class models and other types of diagrams document user and system requirements.

• Question 25
A ____ is a nonprocedural language suitable for developing software that mimics human intelligence.

• Question 26
A ____ uses mnemonics to represent instructions, variables, and labels and has a degree of instruction explosion higher than 1:1.

• Question 27
____ make forwarding decisions by using layer 3 addresses.

• Question 28
The oldest and most widely used VoIP protocol suite is ____.

• Question 29
The written format of 128-bit IP addresses is called ____ notation.

• Question 30
____ is a connectionless protocol that provides less reliable transport services.

• Question 31
Star topologies now dominate physical network topology for wired networks.

• Question 32
The OSI model predates the TCP/IP model by almost a decade.

• Question 33
A reference to a page held in memory is called a ____.

• Question 34
In ____ memory allocation, each process partition has its own offset value.

• Question 35
____ scheduling chooses the next thread to be dispatched based on the expected amount of CPU time needed to complete the process.

• Question 36

When considered as a byte sequence, the rightmost byte is called the most significant byte.

• Question 37
____ occurs when memory partitions allocated to a single process or purpose are scattered throughout physical memory.

• Question 38
In explicit priority scheduling, the scheduler always dispatches the ready thread that has been waiting the longest.

• Question 39
In accounting, ____ is the process of examining records to determine whether generally accepted accounting principles were applied correctly in preparing financial reports.

• Question 40
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.

• Question 41
____ can be seen in the home when air conditioners, refrigerators, and electric dryers are started and cause a momentary dimming of lights.

• Question 42
____ is the process of determining whether an authenticated user or process has enough rights to access a resource.

• Question 43
A(n) longer-term power sag that is often caused by the power provider is known as a ____.

• Question 44
A ____ consists of a digitizing tablet and a pen, stylus, or both.

• Question 45
Early plasma displays accepted the same analog video signals as CRTs.

• Question 46
____ is a standard for storing and transporting control information between computers and electronic musical instruments.

• Question 47
A(n) ____ is a microprocessor specialized for processing continuous streams of audio or graphical data.

• Question 48
On paper, pixel size corresponds to the smallest drop of ink that can be placed accurately on the page.

• Question 49
For video display, a pixel displays no light or light of a specific color and intensity.

• Question 50
The process of converting analog sound waves to digital representation is called ____.