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System Administration and Maintenance

74 answers

A character string that enables a user to have full or limited access to a system or to a set of data.
  • password Correct
A classification of ICs [chips] based on their size as expressed by the number of circuits or logic gates they contain.
  • small scale integration Correct
A computer program that creates a single load module from two or more independently translated object modules or load modules by resolving cross references among the modules and, possibly, by relocating elements.
  • Linkage editor Correct
A diagram of a software system or module, consisting of a rectangle on the left listing inputs, a rectangle in the center listing processing steps, a rectangle on the right listing outputs, and arrows connecting inputs to processing steps and processing steps to outputs.
  • Input process output chart Correct
A document reporting on any event that occurs during testing that requires further investigation. See: failure analysis.
  • test incident report Correct
A high priority interrupt that cannot be disabled by another interrupt.
  • Non-maskable interrupt Correct
A language used to express computer programs. See: computer language, high-level language, low-level language.
  • programming language Correct
A language used to identify a sequence of jobs, describe their requirements to an operating system, and control their execution.
  • Job control language Correct
A manual testing technique in which program documents [specifications (requirements, design), source code or user's manuals] are examined in a very formal and disciplined manner to discover errors, violations of standards and other problems.
  • inspection Correct
A mathematical entity whose value, namely, the value of the dependent variable, depends in a specified manner on the values of one or more independent variables, with not more than one value of the dependent variable corresponding to each permissible combination of values from the respective ranges of the independent variables.
  • function Correct
A measure of how closely the mean value in a series of replicate measurements approaches the true value.
  • Bias Correct
A measure of the reliability of a computer system, equal to average operating time of equipment between failures, as calculated on a statistical basis from the known failure rates of various components of the system.
  • Mean time between failures Correct
A non-moving storage device utilizing one of a number of types of electronic circuitry to store information
  • Main memory Correct
A person who maintains web server services (such as Apache or IIS) that allow for internal or extern al access to web sites.
  • web administrator Correct
A process or meeting during which a work product or set of work products, is presented to project personnel, managers, users, customers, or other interested parties for comment or approval.
  • review Correct
A programming language which requires little knowledge of the target computer, can be translated into several different machine languages, allows symbolic naming of operations and addresses, provides features designed to facilitate expression of data structures and program logic, and usually results in several machine instructions for each program statement.
  • High level language Correct
A relational database programming system incorporating the SQL programming language.
  • Oracle Correct
A requirement that specifies an external item with which a system or system component must interact, or sets forth constraints on formats, timing, or other factors caused by such an interaction.
  • Interface requirement Correct
A review conducted to evaluate preliminary test results for one or more configuration items; to verify that the test procedures for each configuration item are complete, comply with test plans and descriptions, and satisfy test requirements; and to verify that a project is prepared to proceed to formal testing of the configuration items
  • test readiness review Correct
A sequence of instructions that may be performed in the execution of a computer program.
  • Path Correct
A sequence of program statements that can never be executed. Infeasible
  • path Correct
A software V&V task to determine the extent of V&V analysis and testing that must be repeated when changes are made to any previously examined software products.
  • regression analysis and testing Correct
A source code instruction that is replaced by a predefined sequence of source instructions, usually in the same language as the rest of the program and usually during assembly or compilation.
  • Macroinstruction Correct
A standard interface for hard disks which provides for building most of the controller circuitry into the disk drive to save space.
  • Integrated drive electronics Correct
A technology for writing programs that are made up of self-sufficient modules that contain all of the information needed to manipulate a given data structure.
  • Object oriented programming Correct
A test case identification technique which produces enough test cases such that each decision has a true and a false outcome at least once.
  • Branch analysis Correct
A variable that is set to a prescribed state, often "true" or "false", based on the results of a process or the occurrence of a specified condition.
  • Flag Correct
A_____ administrator is a specialist in computer an d network security, including the administration of security devices such as firewalls, as well as consulting on general security measures.
  • security Correct
Activities such as adjusting, cleaning, modifying, overhauling equipment to assure performance in accordance with requirements.
  • Maintenance Correct
An acronym for Beginners All-purpose Symbolic Instruction Code, a high-level programming language intended to facilitate learning to program in an interactive environment
  • BASIC Correct
An arrangement of nodes and interconnecting branches.
  • Network Correct
An assessment of the consequence of the worst credible mishap that could be caused by a specific hazard.
  • Hazard severity Correct
An automatic device that uses feedback to govern the physical position of an element.
  • servomechanism Correct
An Electronic Industries Association (EIA) standard for connecting electronic equipment.
  • RS-232-C Correct
An inherent, possibly accidental, trait, quality, or property of software; e.g., functionality, performance, attributes, design constraints, number of states, lines or branches.
  • software characteristic Correct
An instruction which causes program execution to jump to a new point in the program sequence, rather than execute the next instruction.
  • Branch Correct
An object-oriented high-level programming language
  • C++ Correct
An organization involved in the generation and promulgation of standards. IEEE standards represent the formalization of current norms of professional practice through the process of obtaining the consensus of concerned, practicing professionals in the given field.
  • Institute of Electrical and Electronic Engineers Correct
cathode ray tube CRT
  • CRT Correct
Chips which can be called read/write memory, since the data stored in them may be read or new data may be written into any memory address on these chips.
  • random access memory Correct
Communications systems that use optical fibers for transmission
  • Fiber optics Correct
complex instruction set computer CISC
  • CISC Correct
Computer instructions and definitions expressed in a form [binary code] that can be recognized by the CPU of a computer. All source code, regardless of the language in which it was programmed, is eventually converted to machine code.
  • Machine code Correct
Data for which space is allocated but for which no value currently exists.
  • Null data Correct
distribution is a member of the family of Unix-like operating systems built on top of the Linux kern el.
  • Linux Correct
Documentation of changes made to the system.
  • record of change Correct
Ensuring continuous adequate performance of sensing, measurement, and actuating equipment with regard to specified accuracy and precision requirements.
  • Calibration Correct
Establishing confidence through appropriate testing that the finished product produced by a specified process meets all release requirements for functionality and safety.
  • qualification, product performance Correct
Execution of programs serially with no interactive processing. Contrast with real time processing
  • Batch processing Correct
High frequency electromagnetic waves that emanate from electronic devices such as chips and other electronic devices.
  • radio frequency interference Correct
In image processing and pattern recognition, the smallest element of a digital image that can be assigned a gray level.
  • pixel Correct
is the administrator of a mail server
  • postmaster Correct
It is a person employed to maintain and operate a computer system and/or network.
  • system administrator Correct
It is a person maintains a database system, and is responsible for the integrity of the data and the efficiency and performance of the system.
  • database administrator Correct
It is a series of graphical interface operating systems developed, marketed, and sold by Microsoft.
  • Microsoft windows Correct
operator performs routine maintenance and upkeep , such as changing backup tapes or replacing failed drives in a RAID.
  • computer Correct
Period of time beginning when a software product is conceived and ending when the product is no longer available for use.
  • software life cycle Correct
Pertaining to an actual configuration of software code resulting from a software development project.
  • As built Correct
Pertaining to the principles of mathematical logic developed by George Boole, a nineteenth century mathematician.
  • boolean Correct
Pertaining to the simultaneity of two or more processes.
  • Parallel Correct
Relative to software changes, this means validating the change itself, assessing the nature of the change to determine potential ripple effects, and performing the necessary regression testing
  • revalidation Correct
Test data based on input values that are likely to require special handling by the program
  • special test data Correct
The complete set of instructions recognized by a given computer or provided by a given programming language.
  • Instruction set Correct
The number of records in a block.
  • Blocking factor Correct
The period of time in the software life cycle during which a software product is employed in its operational environment, monitored for satisfactory performance, and modified as necessary to correct problems or to respond to changing requirements.
  • Operation and maintenance phase Correct
The planned systematic activities necessary to ensure that a component, module, or system conforms to established technical requirements.
  • quality assurance Correct
The process of determining the achieved level of reliability for an existing system or system component.
  • reliability assessment Correct
The time interval between the instant at which a CPU's instruction control unit initiates a call for data and the instant at which the actual transfer of the data starts.
  • Latency Correct
This computer became a significant OS market share category starting with Apple's iOS-based iPad in 2010
  • tablets Correct
This is a computer operating system based on the Debi an Linux distribution and distributed as free and op en source software, using its own desktop environment
  • ubuntu Correct
This is a computer with a high level of performance as compared to a general-purpose computer.
  • supercomputer Correct
This person maintains network infrastructure such as switches and routers, and diagnoses problems with these or with the behavior of network-attached computers
  • network administrator Correct
This staff responds to individual users' difficulties with co technical support computer systems, provide instructions and sometimes training, and diagnose and solve common problems.
  • technical support Correct
This system was first announced on 16 August 1993 by Ian Mur dock
  • Debian Correct
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