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NEXORA

Authored by Omiru Jayaweera

Information Technology (IT)

12th Grade

Used 1+ times

NEXORA
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In MySQL, which data type is best for storing text of variable length?

CHAR

VARCHAR

TEXT

STRING

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which layer of the IoT architecture is responsible for data processing and decision-making?

Perception layer

Network layer

Application layer

Middleware layer

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the output of the following Python code?

x = [1, 2, 3]

print(x * 2)

[1, 2, 3, 1, 2, 3]

[2, 4, 6]

Error

123123

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Boolean expression A’B + AB’ represents which gate?

XOR

XNOR

NAND

NOR

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the default subnet mask for a Class C IPv4 address?

255.255.0.0

255.255.255.0

255.0.0.0

255.255.255.255

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In IoT systems, which addressing method is commonly used to identify individual devices on a network?

MAC address

DNS

URL

HTTP ID

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the output of the following?

print([] or [0])

[]

[0]

0

None

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