NCO- Cyber Olympiad (SOF) Class 8: Questions 419 - 423 of 510

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Question number: 419

» Mental Ability » Basic Arithmetic

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MCQ▾

Question

Mrs. Maria wants the students in her class to read a total of 100 books by the end of the session. Students fill in a square in this grid for each book they read. What percent of their goal they have not achieved?

Image of a box having 10 rows and 10 columns and filled boxes

Image of a Box Having 10 Rows and 10 Columns and Filled Boxes

Representing the image of a box having 10 rows and 10 columns and filled boxes

Choices

Choice (4) Response

a.

55%

b.

5.5%

c.

0.45%

d.

45%

Question number: 420

» Computers » Internet & Viruses

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MCQ▾

Question

The viruses that change their appearance to avoid detection are ________.

Choices

Choice (4) Response

a.

Parasitic viruses

b.

MBR viruses

c.

DBR viruses

d.

Polymorphic viruses

Question number: 421

» Mental Ability » Number Games » Number Analogies

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Appeared in Year: 2010

MCQ▾

Question

How many 8’s are there in the following number series which are exactly divisible by its immediately preceding number and also divisible by immediately succeeding number?

8 2 4 5 1 7 2 8 4 8 4 2 2 8 2 6 9 8 4 5 4 8 3 2 8 4 3 1 8 3

Choices

Choice (4) Response

a.

1

b.

2

c.

3

d.

4

Question number: 422

» Computers » Memory & Storage Devices

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Appeared in Year: 2010

MCQ▾

Question

A method of erasing magnetic media and the removal of remnants of previously recorded signals is called ________.

Choices

Choice (4) Response

a.

Deram

b.

Default

c.

Debug

d.

Degauss

Question number: 423

» Mental Ability » Basic Arithmetic

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MCQ▾

Question

What number is one half of one quarter of one tenth of 400?

Choices

Choice (4) Response

a.

4

b.

5

c.

10

d.

0