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#علم_البيانات الدفـعـ(1)ــة
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بوت تواصل خاص بإرسال أسئلة الاختبارات، والملخصات.
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إلى هنا نكون قد أنهينا جميع أسئلة بنك أسئلة مادة #تصميم_الويب (HTML وCSS وJavaScript) الخاص بالدكتور #محمد_زايد، والتي يبلغ عددها 420 سؤالًا.
نرجو أن تنالوا منها الفائدة ، ونسأل الله أن يوفقنا وإياكم لما يحبه ويرضاه.
نرجو أن تنالوا منها الفائدة ، ونسأل الله أن يوفقنا وإياكم لما يحبه ويرضاه.
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علم البيانات | DS2 Quizes pinned «أسئلة في مادة تصميم الويب #تصميم_الويب #web_design SOON✨ 👇👇 #علم_البيانات الدفـعـ(1)ــة»
أسئلة في مادة اساسيات قواعد البيانات#أساسيات_قواعد_البيانات
#databases_fundamentals
SOON✨
👇👇
Section 1: #chapter1
#علم_البيانات الدفـعـ(1)ــة
The property that allows the DBA to change the internal storage structure without requiring changes to the application programs is called:
Anonymous Quiz
36%
Logical Data Independence
15%
Data Redundancy
25%
Conceptual Independence
24%
Physical Data Independence
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The DBMS Catalog stores:
Anonymous Quiz
11%
Application Program code
80%
Metadata (Database Schema)
5%
Only the user data
4%
Disk Block Addresses
Which database user category primarily uses pre-written, highly structured application programs (transactions)?
Anonymous Quiz
29%
Database Designers
26%
Systems Analysts
21%
Parametric End Users
24%
Sophisticated End Users
A major disadvantage of the traditional File Processing Approach is the:
Anonymous Quiz
14%
Data Sharing
20%
Controlled Access
48%
Program-Data Dependence
18%
Data Abstraction
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In the three-schema architecture, the schema that describes the entire database structure for the community of users is the:
Anonymous Quiz
19%
External Schema
28%
Internal Schema
45%
Conceptual Schema
9%
Storage Schema
The property of separating the data denoscription from the application programs is known as:
Anonymous Quiz
5%
Data Sharing
58%
Data Abstraction
14%
Data Integrity
24%
Data Isolation
Logical Data Independence refers to the ability to change the conceptual schema without altering the:
Anonymous Quiz
11%
System Catalog
20%
Physical Storage Files
18%
Internal Schema
51%
External Views/Application Programs
Which of the following is an essential advantage of the Database Approach over the File System Approach?
Anonymous Quiz
10%
Increased Storage Costs
65%
Enforcement of Integrity Constraints
14%
Higher System Complexity
10%
No Need for a DBA
Which DBMS role is typically responsible for authorizing access and granting privileges to users?
Anonymous Quiz
6%
Systems Analyst
13%
Application Programmer
77%
Database Administrator (DBA)
4%
Sophisticated End User
Which of the following is NOT a main characteristic of the Database Approach?
Anonymous Quiz
25%
Self-describing nature via a Catalog
9%
Support for multiple views
7%
Data Sharing
58%
High Program-Data Dependence
The ability of the DBMS to execute multiple user transactions at the same time is primarily handled by:
Anonymous Quiz
2%
Recovery Management
42%
Concurrency Control
50%
Data Definition Language (DDL)
6%
Data Modeling
Which schema in the three-schema architecture uses a Physical Data Model to describe storage details?
Anonymous Quiz
18%
External Schema
27%
Internal Schema
40%
Conceptual Schema
15%
Logical Schema
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The entire collection of data definitions stored in the DBMS is called the:
Anonymous Quiz
27%
Data Model
19%
Data Instance
37%
DBMS Catalog
17%
Data Dictionary
Which type of end user typically interacts with the system using tools like SQL or a data analysis package?
Anonymous Quiz
20%
Parametric End Users
50%
Sophisticated End Users
18%
Casual End Users
13%
Standalone Users
The three general levels of the three-schema architecture are:
Anonymous Quiz
18%
Logical, Physical, and Application
8%
Storage, System, and User
58%
Internal, Conceptual, and External
15%
Relational, Hierarchical, and Network