What differentiates physical design from logical design?

What are entity-relationship diagrams and how are they used? What symbol is used for a relationship? What is an associative enti

castortr0y [4]

Answer:

The definition including its given problem is outlined in the following segment on the clarification.

Explanation:

Entity-relationship (ER) diagram describes how mechanical stored procedures are constructed and demonstrate the overarching representation of the situation. It also describes the connections between some of the entities of the framework and even the comparison with standard measurements.
For something like an individual relationship structure, the normal representation of connections seems to be a diamond. Associative institutions have several to many partnerships to communicate with. It's indeed the verb throughout a diamond-shaped form that holds two organizations around each other. This verb is in fact an entity on its own, therefore it must be termed an associative entity.
An illustration of such might be if a participant were to register for a class. Multiple individuals will be registered for several courses, and there have been many to several relationships; thus, the associative object will indeed register.

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3 years ago

According to the video, what types of education are useful for Database Administrators? Check all that apply.

LUCKY_DIMON [66]

Answer:

college degrees and certification.

Explanation

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3 years ago

Read 2 more answers

In Windows-based systems, a value that specifies the rights that are allowed or denied in an access control entry (ACE) of an ac

blsea [12.9K]

Answer:

C. Access mask discretionary.

Explanation:

Access_Mask is the value that defines the rights used in access control entries (ACE), this value identifies if the trustee is allowed to access a secured object.

It can define rights in three categories: Standard, specific and generic rights.

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3 years ago

The purpose of performance profiling (experimental analysis) is to measure the program/algorithm performance. Assume that you ha

Andru [333]

Answer:

C. O(n).

Explanation:

for better understanding, the os is a program that helps in telling how much resources can be used and when processor can be accessed.

to each programme data structures would load and unload every time that a programme is to be run.

while a programme is being managed there would be extra overheads and based on whatever type of os or programme that this is, it may or may not have fixed overhead

from our question overhead is fixed at 100ms

we have,

net time as: 300-100, 510-100, 905-100, 1750-100, 3305-100,

which is, 200, 410, 805, 1650, 3205

when we double 2¹⁰ to 2¹¹ to 2¹² etc, the programme ran is also doubling

this says that run time is same as size of instance n

O(n)

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3 years ago

On computer X, a nonpipelined instruction execution would require 12 ns. A pipelined implementation uses 6 equal-length stages o

DedPeter [7]

Answer:

5.99997

Explanation:

We can refer to Pipelining as an implementation technique where multiple instructions are overlapped in execution. The computer pipeline is divided in stages. Each stage completes a part of an instruction in parallel.

It increases instruction throughput

see attachment for the step by step solution

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3 years ago