Basi di dati
Authored by Michele Spina
Computers, Science
8th - 12th Grade
Used 123+ times
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41 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Strumenti, risorse umane e materiali fanno parte del:
sistema informativo
sistema informatico
DBMS
DBA
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Una base di dati deve essere integra, cioè:
deve impedire danneggiamenti
deve far accedere diversi tipi di utenti
deve garantire che non si perda la consistenza dei dati
deve avere un tempo di vita illimitato
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Con il termine significato intensionale ci si riferisce:
allo schema
ai valori che si possono memorizzare
al contenuto informativo dei dati
all'interpretazione dei dati
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La ridondanza ha a che fare con la presenza di dati memorizzati più volte
Vero
Falso
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
L'inconsistenza dei dati deriva dalla presenza di alcuni dati aggiornati e di altri non aggiornati all'interno della base di dati
Vero
Falso
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
I RDBMS sono DBMS gerarchici
Vero
Falso
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
L'efficienza di un DBMS dipende dale tecniche utilizzate per la sua implementazione
Vero
Falso
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