Computer Science > QUESTIONS & ANSWERS > NOCTI Computer Programming Questions and Answers with Verified Solutions (All)

NOCTI Computer Programming Questions and Answers with Verified Solutions

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NOCTI Computer Programming Questions and Answers with Verified Solutions User requirements ✔✔specifies what the user expects the software to be able to do. This is the source document. The inp... ut screen design should follow the same order. Design document ✔✔lays out the general requirements that when changed, motivate the existence and purpose of a given code set. Functional requirements ✔✔will specify a behavior or function. Business Rules, Transaction corrections, adjustments and cancellations, Administrative functions, Authentication, Authorization levels, Audit Tracking, External Interfaces, Certification Requirements, Reporting Requirements, Historical Data, Legal or Regulatory Requirements Non functional requirements ✔✔Quality characteristics or quality attributes. Other definition parts - specify how the system should behave. The operation of a system. Constraint on system behavior. Performance ✔✔for example Response Time, Throughput, Utilization, Static Volumetric, Scalability, Capacity, Availability, Reliability, Recoverability, Maintainability, Serviceability, Security, Regulatory, Manageability, Environmental, Data Integrity, Usability, Interoperability Input format ✔✔how to interpret the contents of an input field as a number or a string. Output format ✔✔print and write formats. Automatically generated from the input formats. Oval ✔✔terminator. start/end Parallelogram ✔✔input/output Rectangle ✔✔process. Either single step or an entire sub-process. Diamond ✔✔decision. Circle ✔✔connectors. Requirements specifications ✔✔establishes the basis for agreement between customs, contractors, or suppliers on what the software product is to do as well as what it is not expected to do. Software design ✔✔involves planning a software solution in a sequence of steps that enables the designer to describe all aspects of the software to be built. Implementation and integration ✔✔brings together systems utilizing many techniques: computer networking, enterprise application integration, business process management, programming. Testing ✔✔can be stated as the process of validating and verifying that a computer program/application/product: meets the requirements that guided its design and development and works as expected Deployment ✔✔is all of the following activities that make a software system available for use: Release, Install and Activate, Deactivate, Adapt, Update, Built-in, Version Tracking, Uninstall, Retire Maintenance ✔✔the modification of a software product after delivery to correct faults, to improve performance or other attributes. Design Program Solutions ✔✔ Primary storage ✔✔RAM. Stack ✔✔ Heap ✔✔ Distributed computing ✔✔a field of computer science that studies distributed systems. A distributed system is a model in which components located on networked computers communicate and coordinate their actions by passing messages. The components interact with each other in order to achieve a common goal. Data Storage Field length ✔✔the amount of characters the field can hold. Data Storage Record length ✔✔the length, in bytes, of each record in the data set. Of all the fields. Data formats Delimited ✔✔a character is used to separate the values (comma, tab, colon). Data formats Fixed length ✔✔ Rapid application development ✔✔a software development methodology that uses minimal planning in favor of rapid prototyping. The process of writing the software itself involves the planning required for developing the product. Follows an iterative and incremental model. Makes reusable prototypes. RAD language ✔✔It is very quick and easy to create an application. It is paired with an IDE. C++, Java, Delphi A code review ✔✔systematic examination (sometimes referred to as peer review) of computer source code. It is intended to find mistakes overlooked in the initial development phase, improving the overall quality of software. A design review ✔✔a milestone within a product development process whereby a design is evaluated against its requirements in order to verify the outcomes of previous activities and identify issues before committing to - and if need to be re-prioritize - further work. Appropriate variable names ✔✔camelCase, No reserved words, No spaces, No reserved symbols, Be descriptive. Data types ✔✔follows what type of data it is. Logic patterns ✔✔Simple sequence, Selection, Loop, Branch. Structured programming ✔✔three basic control structures to form highly structured units of code. Subroutines, Block structures, Loops SQL ✔✔Structured query language. Uses plain english queries. Perl ✔✔Scripting languages. Syntax: Has DO UNTIL. Fortran ✔✔One of the oldest programming languages, the FORTRAN was developed by a team of programmers at IBM led by John Backus, and was first published in 1957. The name FORTRAN is an acronym for FORmula TRANslation, because it was designed to allow easy translation of math formulas into code. BASIC ✔✔CAPITAL reserved words, FOR TO: the TO is included in how many times it runs. Beta ✔✔point: (# x, y: @integer #) Unit testing ✔✔a software testing method by which individual units of source code, sets of one or more computer program modules together with associated control data, usage procedures, and operating procedures, are tested to determine whether they are fit for use. Script ✔✔a sequence of events to follow so they can be repeated. Interpreted. Test data ✔✔data for use in tests. Truncation error ✔✔the data has been accidentally truncated. Rounding error ✔✔the data has been accidentally rounded. Run time error ✔✔An error that occurs during the execution of a program. Runtime errors indicate bugs in the program or problems that the designers had anticipated but could do nothing about. Boundary error ✔✔the data has accidentally stepped out of bounds. Logical error ✔✔the program produces unintended or undesired behavior. An issue with logic statements. Arithmetic error ✔✔the data has had a calculation error. Semantic error ✔✔valid syntax but does not do what the programmer intended. Linker error ✔✔problem during linking process Syntax error ✔✔problem with source code. Compile errors ✔✔caused by bad syntax. Maintenance ✔✔refers to changes to a system in operating arising from Error corrections, Performance improvements, Changes in the business environment, Enhancements in functions How to provide user instructions on program modifications ✔✔One method of ensuring that updates to documentation are efficiently distributed is to make changes in an online help system rather than print sources. How to develop a documentation narrative (e.g., writing program documentation) ✔✔Use language that is clear and at the level of the end user. data dictionary ✔✔a set of information describing the contents, format, and structure of a database and the relationship between its elements, used to control access to and manipulation of the database. Compiler ✔✔takes in the entire program, checks for errors, compiles it, and then executes it. Interpreter ✔✔takes the program line by line, checks for errors, and executes it. Injuries ✔✔bursitis, tendon injuries, osteoarthritis, carpal tunnel syndrome. To prevent injuries ✔✔adjust chair so feet are flat on floor, support lower back, top of computer monitor should be ~eye level, wrists should be in a straight neutral position in line with forearms. Network ✔✔a group of two or more computers. Bus ✔✔passes data. CPU ✔✔Central Processing Unit. Processes instructions RAM ✔✔Random Access Memory. Information is loaded onto the RAM for faster run time. Data hierarchies ✔✔the systematic organization of data, often in a hierarchical form. Data organization involves characters, fields, records, files and so on. Access methods ✔✔methods to access data on external devices. Manipulation methods ✔✔methods to manipulate data. [Show More]

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