Oct 2011 Flashcards
Which of the following is an appropriate description concerning the Java language?
a) It is a markup language used for describing Web pages.
b) It is a language developed for scientific and engineering calculations.
c) It is an object-oriented language that provides platform-independent portability.
d) It is a language developed for business-oriented calculations.
c
Which of the following is an appropriate description concerning the Java language?
a) It is a markup language used for describing Web pages.
b) It is a language developed for scientific and engineering calculations.
c) It is an object-oriented language that provides platform-independent portability.
d) It is a language developed for business-oriented calculations.
b
Which of the following is an appropriate description concerning XML (eXtensible
Markup Language)?
a) It is an object-oriented language based on C++, but simplified to eliminate language
features that cause common programming errors.
b) It is an interpreter language for text processing and also a standard language for CGI
(Common Gateway Interface) programs that run on a Web server.
c) It is a page description language used in the electronic and desktop publishing areas
for defining the contents and layout of a printed page.
d) It is a language that enables users to create their own tags in order to describe the
structure and content of a document.
d
- ) When a relation between objects is abstracted, the relation from X to Y (called an order
relation) is represented as (X, Y) and illustrated as . Which of the
following is the diagram that illustrates three sets of order relations “(A, B), (A, C), (B,
D)”?
- ) The data is exchanged between variable A and variable B. When variable TMP is used
to temporarily store data, which of the following is the procedure for exchanging data
correctly? Here, “x←y” indicates that the content of “x” is replaced with the data of
“y”.
- ) When the reward for an improvement proposal concerning business operations is
determined based on the decision table below, how much is the reward for an
improvement proposal that results in an improvement of $20,000 and a turnaround time
reduction of three days? Here, “Y” in the table means that each condition holds
“true”, and “N” means “not true”. In addition, “” indicates the reward that applies
to a specific combination of these conditions.
When a sound is recorded in a computer file, it is to be stored as a series of 8-bit
encoded data. When the same sound source is sampled at the same sampling
frequency and then encoded as a series of 16-bit data in lieu of 8-bit data, which of the
following is an appropriate explanation concerning this encoding?
a) The amplitude of the sound can be recorded more finely.
b) When the recording time is the same, the amount of data becomes smaller.
c) The CPU load required to process the recorded data decreases.
d) The upper limit of the frequency that can be recorded becomes higher.
a
8.) A sound signal is digitized. Sampling is performed at Time 1 through Time 5 in the
figure below, and four-level quantization is performed; in other words, the levels
closest to the sampling point are selected. After that, two-bit encoding is performed.
The result is “11 01 00 10 11”. When digitization is performed in the same way,
which of the following figures represents the sound signal that results in “01 00 10 11
01”?
Which of the following is an appropriate description concerning the clock frequency of
the CPU in a PC?
a) The instruction execution timing of the CPU changes depending on the clock
frequency. As the clock frequency becomes higher, the instruction execution speed
of the PC increases.
b) The communication speed of the LAN changes depending on the clock frequency.
As the clock frequency becomes higher, the communication speed of the LAN
increases.
c) The rotation speed of the hard disk changes depending on the clock frequency. As
the clock frequency becomes higher, the rotation speed becomes faster and the data
transfer rate of the hard disk increases.
d) The clock frequency serves as the reference for the internal clock of the PC. When
the clock frequency doubles, the interrupt interval becomes half and the speed of
real-time processing increases.
a
Which of the following is an appropriate explanation concerning the cache memory of
a PC?
a) It is placed between the CPU core and main memory, and is used to read and write
data at high speed.
b) It is used to store the same data in two locations at the same time in order to improve
reliability.
c) It is equipped with a mechanism that can run even a program whose size exceeds the
main memory capacity.
d) It enables simultaneous access to main memory blocks by dividing main memory
into multiple blocks.
a
Which of the following is an appropriate description concerning flash memory?
a) It is used as read-only storage once data is written.
b) No power supply is required to retain stored data.
c) It is not used for digital cameras because of the difficulty of downsizing.
d) Data is read or written using laser light.
b
Which of the following is an appropriate description concerning CD-R?
a) It is suitable for making a backup copy of data, because the saved data cannot be
erased or overwritten.
b) It is suitable as storage for frequently updated large master files, because it has a
large storage capacity.
c) It is capable of high-speed writing by shrinking the recording area of the disc
surface.
d) A specially-designed CD-R drive is necessary for reading data, because the data is
recorded in a special format.
a
Which of the following is the most appropriate explanation of TCO (Total Cost of
Ownership) that represents the cost of a system?
a) The total cost of a company’s initial investment in an information system
b) The total cost incurred in system development
c) The total cost including system installation, operation, maintenance, and education
d) The total cost of system installation
c
In the new system environment of Company X, three systems including a customer
management system, an ordering management system, and a call center system are run
individually at separate locations and connected via a network so that they can
complement one another in the event of a failure. Also, the system operations are
managed at their respective locations. Which of the following is the greatest merit of
this new system?
a) The integration of operations helps reduce the number of operating staff.
b) Risks of disasters and other problems can be diversified.
c) The versions of software can be controlled easily.
d) Backup files can be managed in a consolidated manner.
b
Which of the following is the technical term that represents the work volume processed
by a computer per unit time?
a) Throughput
b) Turnaround time
c) Time slice
d) Response time
a
Which of the following is an appropriate description concerning OSs used for PCs?
a) Since the interface between an OS and application programs is standardized, the
application programs can be developed without regard to the type of OS.
b) An OS allocates the computer resources, such as the CPU, memory, and auxiliary
storage device, to application programs.
c) Since an OS has the function of automatically converting character sets in a file,
application programs can access the file without regard to the type of character set.
d) The source code of an OS should be disclosed so that application programs can be
free to use the various functions of the OS.
b
Which of the following is the most appropriate method for displaying the content of
database to a limited extent in accordance with the level of confidentiality for each
user’s business operations?
a) Setting up access rights based on the combination of data and user
b) Distributing a copy of the database limited to each user
c) Setting up a set of data items (columns) dedicated to each user
d) Setting up a password for each record in order to protect data
a
When a newly installed application program is concurrently executed on a PC that is
equipped with a virtual memory function, the swapping of pages between main and
secondary storage occurs frequently and the processing efficiency of the running
application programs drops sharply. Which of the following is the most appropriate
solution to this situation?
a) Installing more hard disks
b) Installing more main memory
c) Switching to a faster CPU
d) Switching to faster main memory
b
Which of the following is an appropriate description concerning file systems that
manage files with directories and that are used for a wide variety of OSs on PCs?
a) The current directory is created first as the top directory of a hierarchical structure.
b) The file system should be created on a hard disk for directory management.
c) The directory path is used to identify a specific file stored on an auxiliary storage.
d) Files and directories cannot be registered in the same directory.
c
Which of the following is an appropriate explanation of an interpreter?
a) It is a program that translates source programs written in assembler language to
machine language programs.
b) It is a program that reads high-level source programs line-by-line, alternately
translating lines and executing appropriate operations.
c) It is a program that translates source programs written in high-level language to
machine language programs, and then generates load modules.
d) It is a program that automatically generates purpose-specific programs based on the
specified parameters.
b
Which of the following is software that can be used free of charge on a trial basis but
requires a usage fee if it continues to be used after the trial period?
a) Open source software
b) Shareware
c) Public domain software
d) Freeware
b
Which of the following is an explanation of defragmentation?
a) It reassigns defective clusters to other clusters.
b) It relocates free or unused clusters.
c) It removes failed or defective clusters.
d) It relocates physically distributed files into continuous areas.
d
Which of the following is an appropriate concept of universal design?
a) Ensuring that, once a product is designed, the design remains usable without being
changed for a long period of time
b) Ensuring that products keep the same levels of performance and quality regardless of
where they are manufactured in the world
c) Making the design as simple and easy as possible in order to reduce the
manufacturing cost
d) Making products available to many people regardless of differences in age, culture,
and ability as well as whether disability is present
d
Which of the following is an appropriate explanation of MP3 that is used as a
multimedia file format?
a) File compression format for G4 facsimile communication data
b) File compression format for audio data
c) File compression format for color image data
d) File compression format for digital video data
b