NCO- Cyber Olympiad (SOF) Class 12: Questions 286 - 290 of 518

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Question 286

Question MCQ▾

Which of the following data integrity constraint ensure that a relational database can be related by common columns in a table?

Choices

Choice (4)Response

a.

User-defined

b.

Referential

c.

Entity

d.

Entry

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Question 287

Question MCQ▾

________ Is a Technology that Divides a Radio Frequency into Time Slots and then Allocates to Multiple Calls.

Choices

Choice (4)Response

a.

TDMA

b.

WLL

c.

CDMA

d.

GSM

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Question 288

Question MCQ▾

Identify the following.

- It is the network of physical objects embedded with electronic, software and sensors that involves machine-to-machine communication (M2M) without any human interaction.

- Its examples are heart monitoring implants and automobiles with built-in sensors.

Choices

Choice (4)Response

a.

Internet Harvesting

b.

Internet of Things

c.

Information of Objects

d.

Cloud Computing

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Question 289

Question MCQ▾

is the ________ law in Boolean Algebra.

Choices

Choice (4)Response

a.

Commutative

b.

Associative

c.

Distributive

d.

Absorption

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Question 290

Question MCQ▾

Identify the database model shown in the given image.

Image Shows the Database Model

Choices

Choice (4)Response

a.

Hierarchical model

b.

Network model

c.

Class model

d.

Relational model

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