[amp_mcq option1=”Fields are composed of bytes” option2=”Files are composed of records” option3=”Fields are composed of characters” option4=”Records are composed of fields E. All of the above” correct=”option1″]
The correct answer is: E. All of the above
A field is a single piece of information in a record. It is composed of characters, which are the smallest unit of data in a computer. A record is a group of related fields. A file is a collection of records.
For example, a customer record might have fields for the customer’s name, address, phone number, and email address. A file of customer records might contain records for all of the customers of a company.
Here is a more detailed explanation of each option:
- Fields are composed of bytes. A byte is a unit of data that is typically eight bits long. A bit is the smallest unit of data in a computer, and it can be either a 0 or a 1. Eight bits can represent 256 different values, so a byte can represent up to 256 different characters.
- Files are composed of records. A record is a group of related fields. A field is a single piece of information in a record. For example, a customer record might have fields for the customer’s name, address, phone number, and email address.
- Fields are composed of characters. A character is a single letter, number, or symbol. Characters are represented in computers by bytes. Each byte can represent up to 256 different characters.
- Records are composed of fields. A record is a group of related fields. A field is a single piece of information in a record. For example, a customer record might have fields for the customer’s name, address, phone number, and email address.