Relacione Baze Podataka - Viser

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| By Bozapub

Bozapub

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Quizzes Created: 1 | Total Attempts: 791

| Attempts: 791

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1/92 Pitanja

Na slici je prikazan koji model?
- Vodopad
- Scrum
- Spiralni

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2.

Na slici je prikazana
- Veza 1:M
- Veza 1:1
- Veza M:N
Correct Answer

A. Veza 1:1
3.

Na slici znakom pitanja je označeno:

Correct Answer
data
podaci
data (podaci)

Explanation
The correct answer is "data, podaci, data (podaci)". This suggests that the term "data" can be translated as "podaci" in the given context, and "data (podaci)" indicates that both terms are used interchangeably.

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4.

Proučavanje dokumentacije se koristi u fazi
- Prikupljanje i analiza zahteva
- Testiranja
- Programiranja
Correct Answer

A. Prikupljanje i analiza zahteva

Explanation

The correct answer is "Prikupljanje i analiza zahteva" (Collecting and analyzing requirements). In the documentation phase, studying the documentation is crucial to understand and gather the requirements of the project or system being developed. This involves reviewing existing documents, such as user manuals, technical specifications, and business requirements, to identify the needs and expectations of stakeholders. By studying the documentation, developers can ensure that they have a clear understanding of what needs to be achieved and can plan and design the system accordingly.

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5.

Ako jedna narudžbenica sadrži više stavki narudžbenice, tada je tip kardinalnosti
- Više prema više (M:N)
- Jedan prema jedan (1:1)
- Jedan prema više (1:M)
Correct Answer

A. Jedan prema više (1:M)

Explanation

The given statement suggests that if one order contains multiple items of the order, then the cardinality type is "One to Many" (1:M). This means that for each order, there can be multiple items associated with it. In other words, one order can have many items.

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6.

Integrisani skup komponenti za sakupljanje, snimanje, cuvanje, obradu i prenošenje informacija.Je definicija
- Informacionog sistema
- Podatka
- Informacije
Correct Answer

A. Informacionog sistema

Explanation

The correct answer is "Informacionog sistema". This answer correctly identifies the definition of an information system as an integrated set of components for collecting, recording, storing, processing, and transmitting information.

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7.

Ako više dobavljača ima ugovore sa više špeditera. Tada je tip kardinalnosti veze
- Jedan prema više (1:M)
- Jedan prema jedan (1:1)
- Više prema više
Correct Answer

A. Više prema više

Explanation

The given correct answer is "Više prema više". This means that there is a many-to-many relationship between the suppliers and the freight forwarders. This implies that each supplier can have contracts with multiple freight forwarders, and each freight forwarder can have contracts with multiple suppliers.

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8.

BEGIN TRANSACTION je
- Početak transakcije
- Potvrđivanje uspešnog završetka transakcije
- Poništavanje svih efekata transakcije
Correct Answer

A. Početak transakcije

Explanation

The given answer is "Početak transakcije." This is because the phrase "BEGIN TRANSACTION" is translated as "Početak transakcije" in Serbian. It signifies the start of a transaction in a database system, where a set of operations is grouped together and treated as a single unit of work.

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9.

Na slici je znakom ? označeno:

Correct Answer
centralna jedinica
CPU
procesor
procesorska jedinica

Explanation
The correct answer is "centralna jedinica, CPU, procesor, procesorska jedinica". The question asks what is marked with a "?" in the picture. Since all four options are listed as the correct answer, it can be inferred that the "?" represents all of these terms: centralna jedinica, CPU, procesor, and procesorska jedinica.

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10.

Na slici je prikazano
- Troslojna arhitektura
- Sloj poslovne logike
- Četvoroslojna arhitektura
Correct Answer

A. Troslojna arhitektura

Explanation

The correct answer is "Troslojna arhitektura." The image depicts a three-layer architecture, which is a common architectural pattern in software development. It consists of three layers: presentation layer, business logic layer, and data access layer. Each layer has its own responsibilities and interacts with the other layers to achieve the overall functionality of the application. This architecture promotes separation of concerns and modularity, making the system easier to maintain and scale.

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11.

Na slici znakom ? je označeno:

Correct Answer
procedure
postupci
pravila

Explanation
Kod ovakvih pitanja mali hack može da upali. Kliknite desnim na sliku i otvorite je u novom tabu ili prozoru. U URL adresi tada vidite ime slike. Često je ime slike upravo odgovor koji se traži. Ime ove slike je: rac%20sistemiprocedurepostupcipravila.jpg

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12.

Na slici, znakom pitanja (?) je označeno

Correct Answer
Podaci
Data
Podaci (data)

Explanation
The correct answer is "Podaci, Data, Podaci (data)" because the question is asking for the translation of the phrase "Na slici, znakom pitanja (?) je označeno" which means "On the picture, the question mark (?) is marked". The given answer options provide the translation of the word "Data" in different forms, which is the correct translation for "Podaci".

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13.

Arhitekturu sistema čine
- Samo arhitektura koda
- Aplikativni model i arhitektura podataka
- Samo aplikativni model
Correct Answer

A. Aplikativni model i arhitektura podataka

Explanation

The correct answer is "Aplikativni model i arhitektura podataka." This means that the architecture of the system consists of both the application model and the data architecture. It suggests that the system's design includes not only the structure and organization of the code but also the model and structure of the data that the system handles.

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14.

Entitet je:
- Integrisani skup komponenti za skupljanje, snimanje, čuvanje, obradu i prenošenje informacija
- činjenica, događaj ili ideja u određenoj notaciji
- Nešto što postoji i što se može jednoznačno identifikovati
Correct Answer

A. Nešto što postoji i što se može jednoznačno identifikovati

Explanation

The correct answer is "nešto što postoji i što se može jednoznačno identifikovati". This answer defines an entity as something that exists and can be uniquely identified. It implies that an entity is a distinct and separate entity with its own characteristics or properties.

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15.

Analiza je
- Sklapanje veće strukture na bazi pojedinačnih manjih gradivnih elemenata.
- Razlaganje problema na delove koji su međusobno povezani i koje zasebno rešavamo.
Correct Answer

A. Razlaganje problema na delove koji su međusobno povezani i koje zasebno rešavamo.

Explanation

The answer accurately describes the concept of analysis as breaking down a problem into interconnected parts and solving them separately. It also mentions the idea of constructing a larger structure based on individual smaller building elements, which further reinforces the concept of analysis.

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16.

Na slici je prikazan koji model?
- Scrum
- Spiralni
- Vodopad
Correct Answer

A. Scrum

Explanation

The correct answer is Scrum because the question asks for the model depicted in the picture, and Scrum is the only model mentioned in the options.

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17.

Koja tvrdnja je tačna?
- Svrha informacionih sistema je isključivo samo skladištenje podataka i njihovo u čitavanje pri obavljanju raznih poslova.
- Svrha informacionih sistema nije samo skladištenje podataka i njihovo u čitavanje pri obavljanju raznih poslova, već najčešće i pomoć pri obavljanju određene aktivnosti ili više njih.
- Aktivnost koja u jednom sistemu predstavlja posao je i u svim drugim sistemima posao.
Correct Answer

A. Svrha informacionih sistema nije samo skladištenje podataka i njihovo u čitavanje pri obavljanju raznih poslova, već najčešće i pomoć pri obavljanju određene aktivnosti ili više njih.

Explanation

The correct answer states that the purpose of information systems is not only to store data and read it for various tasks, but also to assist in carrying out specific activities or multiple activities. This implies that information systems have a broader role than just storing and retrieving data, and they are designed to support and facilitate various activities within an organization.

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18.

Na slici, znakom pitanja (?) je označeno

Correct Answer
Konstrukcija sistema

Explanation
The correct answer is "Konstrukcija sistema" because the question is asking what is marked by the question mark in the picture. Since the phrase "Konstrukcija sistema" is the only option given, it can be inferred that it is the correct answer. However, without the picture or further context, it is difficult to provide a more specific explanation.

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19.

Znakom pitanja je označeno:
- Zapis
- Kolona
- Naziv polja
Correct Answer

A. Zapis

Explanation

The given answer "Zapis" is the correct answer because it is the only option that is mentioned in the question. The question is asking about the "Znakom pitanja je označeno" and "Zapis" is the only option provided. Therefore, "Zapis" is the correct answer.

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20.

Nešto što postoji i što se može jednoznačno identifikovati je:
- Podatak
- Informacija
- Zapis
- Entitet
Correct Answer

A. Entitet

Explanation

An entity is something that exists and can be uniquely identified. In this context, the correct answer is "entitet" because it fits the description of something that exists and can be unmistakably identified.

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21.

Softverski sistem za čuvanje i upravljanje podacima, uz fizičku i logičku nezavisnost programa od podatka je:
- DBMS (Database Management System)
- Baza podataka
- Tabela
Correct Answer

A. DBMS (Database Management System)

Explanation

A DBMS (Database Management System) is a software system that allows for the storage and management of data, providing both physical and logical independence between the program and the data. It provides a set of tools and functions to create, modify, and query databases, ensuring data integrity, security, and efficient access. A DBMS allows multiple users to access and manipulate data simultaneously, ensuring data consistency and eliminating data redundancy. It also provides mechanisms for data backup, recovery, and data concurrency control. Therefore, a DBMS is the correct answer as it encompasses all the mentioned characteristics.

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22.

Pojedinačna akcija, tj. korak tokom odvijanja radnog procesa je
- Reinženjering
- Radni proces
- Posao (task)
Correct Answer

A. Posao (task)

Explanation

In this question, the options given are "Posao (task)", "Reinženjering", and "Radni proces". The correct answer is "Posao (task)". This answer is correct because the question asks for the individual action or step during the process of work. A "Posao (task)" refers to a specific action or step that needs to be completed as part of a larger process or workflow. "Reinženjering" refers to the process of redesigning or reengineering a system or process, and "Radni proces" refers to the overall workflow or process of work.

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23.

Sloj interfejsa za spoljašnji pristup
- Odgovoran je za komuniciranje između aplikacije i spoljašnjih izvora podataka.
- Odgovoran je za proveru ispravnosti podataka ali ne i za poslovna pravila.
- Koordinira upotrebu podataka u aplikaciji
Correct Answer

A. Odgovoran je za komuniciranje između aplikacije i spoljašnjih izvora podataka.

Explanation

The correct answer is "Odgovoran je za komuniciranje između aplikacije i spoljašnjih izvora podataka." This means that the interface layer for external access is responsible for facilitating communication between the application and external data sources. It ensures that the application can retrieve and exchange data with these external sources efficiently and securely.

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24.

Grupa objekata koji imaju iste osobine je:
- Entitet
- Metapodatak
- Klasa
- Apstrakcija
Correct Answer

A. Klasa

Explanation

The correct answer is "klasa". In programming and object-oriented design, a class is a blueprint for creating objects that have similar characteristics or properties. It defines the common attributes and behaviors that the objects will have. By grouping objects with the same properties into a class, it allows for efficient organization and management of the code.

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25.

Koja tvrdnja je tačna
- Redosled kojim se posmatraju pojedini procesi unutar opsega sistema nikad nije važan
- Analiza radnih procesa je moguća u svim sistemima
- Radni proces je skup jednog ili više pojedinačnih poslova
Correct Answer

A. Radni proces je skup jednog ili više pojedinačnih poslova

Explanation

A work process is defined as a collection of one or more individual tasks or jobs. This means that a work process can consist of multiple tasks or jobs that are performed in a specific order to achieve a desired outcome. The statement "Radni proces je skup jednog ili više pojedinačnih poslova" translates to "A work process is a collection of one or more individual jobs," which accurately reflects the definition of a work process.

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26.

MOV-Modeli objekti-veze (E-R, Entity-Relationship Model)
- Ne koriste se za dokumentovanje veza između podataka
- Koriste se za dokumentovanje veza između podataka
- Koriste se za dokumentovaje poslovnih procesa
Correct Answer

A. Koriste se za dokumentovanje veza između podataka

Explanation

The correct answer is "Koriste se za dokumentovanje veza između podataka" because the MOV-Modeli objekti-veze (E-R, Entity-Relationship Model) are specifically designed to document and represent the relationships between different data entities. This model helps in visualizing and understanding how different entities are related to each other in a database system. It provides a clear representation of the data structure and helps in designing and managing databases effectively.

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27.

ODBC se koristi
- Za razmena podataka između BP i aplikacija
- Kod sloja korisničkih usluga
- Kod sloja poslovne logike
Correct Answer

A. Za razmena podataka između BP i aplikacija

Explanation

ODBC (Open Database Connectivity) se koristi za razmenu podataka između baze podataka (BP) i aplikacija. ODBC omogućava aplikacijama da pristupe podacima u bazi podataka i izvršavaju upite nad njima. ODBC sloj se nalazi između aplikacija i baze podataka, pružajući standardizovanu metodu komunikacije. Kroz ODBC, aplikacije mogu da pristupe podacima iz baze podataka i izvršavaju operacije kao što su čitanje, pisanje i ažuriranje. Ovo omogućava efikasnu razmenu podataka između BP i aplikacija.

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28.

Sistemski modeli su:
- Samo komunikacije i interfejs modeli
- Procesi, podaci, komunikacije, interfejs modeli
- Samo podaci i procesi
- Podaci, procesi I interfejs modeli, a ne komunikacije
Correct Answer

A. Procesi, podaci, komunikacije, interfejs modeli

Explanation

The correct answer is "Procesi, podaci, komunikacije, interfejs modeli". This answer states that system models consist of processes, data, communication, and interface models.

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29.

Jednoznačni atribut ima sledeću osobinu
- DG = 1, GG = 1
- DG = 1, GG = 1 a inverzno preslikavanje DG = 0(1), GG > 1
- GG = N
Correct Answer

A. DG = 1, GG = 1

Explanation

The correct answer is that a unique attribute has the property DG = 1, GG = 1. This means that for a given entity, there is only one value for this attribute, and it is unique among all entities in the database. This ensures that the attribute can be used as a primary key or a unique identifier for the entity.

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30.

Na slici je arhitektura paralelnog DBMS gde
- Ništa nije deljeno
- Je deljena memorija
- Je deljen disk
Correct Answer

A. Ništa nije deljeno

Explanation

The image depicts the architecture of a parallel DBMS where nothing is shared. This means that there is no sharing of memory or disk resources among the parallel database nodes. Each node operates independently and has its own dedicated resources. This architecture allows for high scalability and performance as each node can work on its own subset of data without any interference or contention from other nodes.

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31.

Elementarno obeležje koje se ne može dekomponovati, ili koje se u datom slučaju dalje ne dekomponuje na komponente je:
- Klasa
- Entitet
- Zapis
- Atribut
Correct Answer

A. Atribut

Explanation

The correct answer is "atribut." An attribute is a characteristic or property of an entity or object. It cannot be further decomposed into smaller components as it represents a single piece of information. In contrast, a class refers to a group of objects with similar properties, an entity represents a real-world object, and a record is a collection of related data fields. Therefore, the attribute is the only option that fits the description of an elementary feature that cannot be decomposed.

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32.

Rizik vreme isporuke se odnosi na:
- Može prekoračiti budžet.
- Projekat može biti isporučen prekasno.
- Projekat može da ne dostigne postavljene zahteveili bude na neki drugi način neprihvatljiv za korisnika.
Correct Answer

A. Projekat može biti isporučen prekasno.

Explanation

The correct answer is "Projekat može biti isporučen prekasno." This is because the term "rizik vreme isporuke" refers to the potential risk or possibility of the project being delivered late or delayed. It implies that there is a chance that the project may not be completed within the specified time frame, which can have negative consequences for the project's success.

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33.

Skup jednog ili više pojedinačnih poslova, koji zajedno čine aktivnost koja ima određenu važnost za preduze će (organizaciju) je
- Posao (task)
- Radni proces
- Reinženjering
Correct Answer

A. Radni proces

Explanation

The given question is asking for the term that describes a collection of individual tasks that together form an activity of importance for an organization. The correct answer is "Radni proces" which translates to "Work process" in English. This term accurately describes the concept of a series of tasks or activities that are performed in a specific order to achieve a particular goal or outcome within an organization.

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34.

Ako su neophodne veće vrednosti, u šemi podataka se mora
- Izabrati tip podataka koji prihvata širi opseg vrednosti
- U aplikaciji odrediti rešenje tokom rada
- U aplikaciji omogućite da izbor sa ponuđene liste ispravnih vrednosti
Correct Answer

A. Izabrati tip podataka koji prihvata širi opseg vrednosti

Explanation

The correct answer suggests that if larger values are needed, the data type chosen should be able to accept a wider range of values. This means that selecting a data type with a wider range of values will allow for the storage and manipulation of larger values in the application.

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35.

Sloj korisničkog interfejsa
- Odgovara sloju podataka u troslojnom modelu
- Odgovoran je za komunikaciju sa korisnikom
- Koordinira upotrebu podataka u aplikaciji
Correct Answer

A. Odgovoran je za komunikaciju sa korisnikom

Explanation

The correct answer is "Odgovoran je za komunikaciju sa korisnikom" (Responsible for communication with the user). This is because the given statement accurately describes the role of the user interface layer, which is to facilitate communication between the user and the application. It is responsible for displaying information to the user and receiving input from them.

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36.

Učestvovanje nekog entiteta u vezi je delimično ako
- Zapisi takvog entiteta mogu da postoje samo ako postoje i u drugom (slab entitet)
- Zapisi takvog entiteta mogu da postoje bez obzira na drugi entitet (jak entitet)
Correct Answer

A. Zapisi takvog entiteta mogu da postoje bez obzira na drugi entitet (jak entitet)

Explanation

The correct answer is "zapisi takvog entiteta mogu da postoje bez obzira na drugi entitet (jak entitet)". This means that the entity can exist independently without any dependency on another entity. It does not require the presence of another entity for its existence.

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37.

Neobavezna specijalizacija
- DG=1
- DG=0
- GG>1
Correct Answer

A. DG=0

Explanation

The given answer "DG=0" suggests that in the context of "Neobavezna specijalizacija", the value of DG is equal to zero. This implies that there is no requirement or obligation for specialization in this particular scenario. The information provided does not give any indication of what DG or GG represent, but based on the given options, DG=0 seems to be the most appropriate choice.

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38.

Transakacija ima
- Dva ishoda
- Samo jedan ishod
- Dva i više ishoda
Correct Answer

A. Dva ishoda

Explanation

The given answer "dva ishoda" means "two outcomes" in English. This suggests that the transaction has two possible results or consequences.

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39.

Na slici je arhitktura paralelnog DBMS gde
- Memorija deljena
- Je disk deljen
- Ništa nije deljeno
Correct Answer

A. Je disk deljen

Explanation

The correct answer is "je disk deljen" (the disk is shared). This means that in the architecture of the parallel DBMS shown in the image, the disk is shared among multiple processors or nodes. This allows for improved performance and scalability, as multiple processors can access and manipulate data stored on the shared disk simultaneously. Sharing the disk also enables data redundancy and fault tolerance, as multiple copies of the data can be stored on different nodes.

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40.

Korisnici neće ugroziti integritet entiteta, niti referencijalni integritet ako
- Upotrebimo opciju Identity u SQL Serveru
- Upotrebom relacija
- Upotrebom stornih procedura
Correct Answer

A. Upotrebimo opciju Identity u SQL Serveru

Explanation

The use of the "Identity" option in SQL Server ensures that a unique value is automatically generated for a specific column in a table. This helps in maintaining the integrity of the entity by ensuring that each row has a unique identifier. It does not affect the referential integrity of the entity as it only deals with the generation of unique values for a column.

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41.

Učestvovanje nekog entiteta u vezi je potpuno ako
- zapisi takvog entiteta mogu da postoje bez obzira na drugi entitet (jak entitet)
- Zapisi takvog entiteta mogu da postoje samo ako postoje i u drugom (slab entitet)
Correct Answer

A. Zapisi takvog entiteta mogu da postoje samo ako postoje i u drugom (slab entitet)

Explanation

The correct answer suggests that the participation of an entity in a relationship is complete if the records of that entity can only exist if there are records in another entity (weak entity). This means that the existence of the first entity is dependent on the existence of the second entity.

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42.

Skup međusobno povezanih podataka, sa min. redudanse, koje zajednički koriste svi procesi obrade u sistemu je
- Baza podataka
- DBMS (Database Management System)
- Tabela
Correct Answer

A. Baza podataka

Explanation

A skup međusobno povezanih podataka, sa minimalnom redundansom, koje zajednički koriste svi procesi obrade u sistemu je baza podataka. Baza podataka omogućava organizovanje i skladištenje podataka na strukturiran način, omogućavajući efikasno upravljanje i manipulaciju tim podacima. DBMS (Database Management System) je softverski sistem koji se koristi za upravljanje bazama podataka, pružajući alate i funkcionalnosti za kreiranje, upravljanje i održavanje baza podataka. Tabela je specifična struktura u bazi podataka koja organizuje podatke u redove i kolone.

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43.

Konceptualni model podataka
- Opisuje fizičku strukturu tabela.
- Je šema baze podataka
- Sadrži opis entiteta, njihove atribute i veze izme đu njih.
Correct Answer

A. Sadrži opis entiteta, njihove atribute i veze izme đu njih.

Explanation

The correct answer is "Sadrži opis entiteta, njihove atribute i veze izme đu njih." This answer accurately describes what a conceptual data model is. It states that a conceptual data model contains descriptions of entities, their attributes, and the relationships between them. This aligns with the definition of a conceptual data model, which is a high-level representation of the structure and organization of data in a database system.

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44.

Četvoroslojni model organizuje komponente koda u:
- Sloj korisničkog interfejsa
- Sloj interfejsa za podatke
- Sloj interfejsa za spoljašnji pristup
- Sloj interfejsa za transakcije
Correct Answer(s)

A. Sloj korisničkog interfejsa
A. Sloj interfejsa za podatke
A. Sloj interfejsa za spoljašnji pristup
A. Sloj interfejsa za transakcije

Explanation

The correct answer states that the Četvoroslojni model organizes code components into four layers: the user interface layer, the data interface layer, the external access interface layer, and the transaction interface layer. This means that the code is structured in a way that separates these different functionalities into distinct layers, allowing for better organization and modularization of the code.

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45.

Distribucija podataka
- Znači da postoji jedna, ali su poda baza podataka
- Znači da postoji više baza podataka raspoređenih na različitim mestima, i podaci se mogu razlikovati
- Znači da postoji jedna ili više baza podataka raspoređenih na različitim mestima, ali su podaci unikatni
Correct Answer

A. Znači da postoji jedna ili više baza podataka raspoređenih na različitim mestima, ali su podaci unikatni

Explanation

The correct answer states that data distribution means that there is one or more databases located in different places, but the data is unique. This means that the data is spread out across multiple locations, but each database contains distinct and non-repetitive data.

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46.

Šema alokacije
- Je opis je gde će podaci biti smešteni
- Je logički opis cele baze
- Je opis kako se podaci logički dele
Correct Answer

A. Je opis je gde će podaci biti smešteni

Explanation

The correct answer is "je opis je gde će podaci biti smešteni". This answer states that the schema allocation describes where the data will be stored. This means that the schema allocation determines the physical location or storage structure for the data in a database. It is responsible for defining how the data will be organized and stored on the underlying storage devices.

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47.

Poslovni uslovi se ne mogu zanemariti bez ugrožavanja pouzdanosti podataka.
- Tačno
- Netačno
Correct Answer

A. Netačno

Explanation

The statement "Poslovni uslovi se ne mogu zanemariti bez ugrožavanja pouzdanosti podataka" translates to "Business conditions cannot be ignored without compromising data reliability." The correct answer is "Netačno" which means "False" in English. Therefore, the explanation for the correct answer is that business conditions can be ignored without compromising data reliability.

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48.

Elementarno obeležje koje se dalje ne može dekomponovati, ili koje se u datom slučaju dalje ne dekomponuje na komponente je:
- Klasa
- Atribut
- Zapis
- Entitet
Correct Answer

A. Atribut

Explanation

An attribute is a basic and indivisible element that cannot be further decomposed or broken down into smaller components. It is a characteristic or property that describes an entity or object. In the given context, the attribute is identified as the element that cannot be decomposed further.

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49.

Rizik performanse
- Može prekoračiti budžet
- Softver može biti neprilagodljiv, bez mogućnosti održavanja ili proširivanja
- Projekat može da ne dostigne postavljene zahteve ili bude na neki drugi način neprihvatljiv za korisnika
Correct Answer

A. Projekat može da ne dostigne postavljene zahteve ili bude na neki drugi način neprihvatljiv za korisnika

Explanation

The given answer suggests that "Rizik performanse" refers to the possibility of a project not meeting the specified requirements or being unacceptable to the user in some other way. This means that the project may not deliver the desired outcomes or may not meet the expectations of the user, which can be considered a risk to the project's performance.

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