NCO- Cyber Olympiad Class 7: Questions 383 - 385 of 416

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Question number: 383

» Computers » Memory & Storage Devices

MCQ▾

Question

Which of the following storage media provides sequential access to data?

Choices

Choice (4) Response
a.

Optical disk

b.

Magnetic disk

c.

Magnetic tap

d.

Floppy disk

Question number: 384

» Computers » Memory & Storage Devices

Appeared in Year: 2011

MCQ▾

Question

All of the following are examples of electronic databases except which one?

Choices

Choice (4) Response
a.

Online catalog

b.

A collection of country music CDs

c.

A CD-ROM encyclopedia

d.

Computerised student information

Question number: 385

» Mental Ability » Basic Statistics

MCQ▾

Question

The graph shows the petrol efficiency of several cars.

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Created with Highcharts 4.2. 5CarsNumber of Km per LiterEfficiencyCars vs. Number of km per liter123450102030402Cars vs. Number of km per liter: 15

Choices

Choice (4) Response
a.

Car 1 can travel only half the distance of car 4 on the same amount of petrol

b.

The median value for efficiency of all the cars is 30 km per liter

c.

All the cars meet the federal guidance for fuel efficiency of at least 21 km per liter

d.

The difference in mileage between the most efficient car and the least efficient car is more than 15 km per liter

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