comptia module one test practice

A package-delivery service is working with address information, which contains a house number and a street name. What is the best data type to use for the house number?

• Float

• String

• Integer

• Char

Answer explanation

house number is part of the address field together with the street name, or its own field, it's best to use the string.

if the house number contains only digits, there will need to be conversions into string

Which of the following represents the largest amount of storage capacity?

• 10gb

• 5pb

• 10000tb

• 2500000000 MB

What are the four functions which represent most of the ways that data moves through a computer system?

• Automation, replication, optimization, recovery

• Typing, editing, copying, printing

• Input, output, processing, storage

• Addition, subtraction, division, multiplication

Answer explanation

all computers operate by taking things in and out

-my original answer (a) related to data management

How much storage does a character data type use?

• 1 bit

• 1 byte

• 4 bytes

• 8 bytes

Answer explanation

a character consumes one byte of storage

Integers and floating-point numbers consume up to 8 bytes of storage

Which of the following best describes their capacity in petabytes?

• hard disk drives

• tape drives

• cloud systems

• storage networks