Given the following specifications of an email: 1. An email address is defined as 'name@domain.org' or 'name@domain.net'. 2. The name is an alphanumeric string that is at least one character and less than or equal to 6 characters long. The only additional characters allowed are periods (.) but the email cannot start or end with a period. 3. The domain also consists of alphanumeric characters with no additional characters allowed. which of the following regular expressions will recognize an email correctly? Select one option only. O [A-Za-zO-9](?:[A-Za-zO-9.]{0,4}[A-Za-zO-9])?@[A-Za-zO-9]*(?:\.net|\.org) O [A-Za-z0-9](?:[A-Za-zO-9.]{0,5}[A-Za-zO-9])?@[A-Za-zO-9]+(?:\.net|\.org) O [A-Za-zO-9](?:[A-Za-zO-9.]{0,4}[A-Za-zO-9])?@[A-Za-zO-9]+.(?:net|org) O [A-Za-z0-9][A-Za-zO-9.]{0,4}[A-Za-zO-9]@[A-Za-z-9]+(?:\.net|\.org) O [A-Za-z0-9]{1,6}@[A-Za-z0-9]+(?:\.net|\.org) O [A-Za-z0-9](?:[A-Za-z0-9.]{0,4}[A-Za-zO-9])?@[A-Za-z0-9]+(?:\.net|\.org) O none of the options are correct
Given the following specifications of an email: 1. An email address is defined as 'name@domain.org' or 'name@domain.net'. 2. The name is an alphanumeric string that is at least one character and less than or equal to 6 characters long. The only additional characters allowed are periods (.) but the email cannot start or end with a period. 3. The domain also consists of alphanumeric characters with no additional characters allowed. which of the following regular expressions will recognize an email correctly? Select one option only. O [A-Za-zO-9](?:[A-Za-zO-9.]{0,4}[A-Za-zO-9])?@[A-Za-zO-9]*(?:\.net|\.org) O [A-Za-z0-9](?:[A-Za-zO-9.]{0,5}[A-Za-zO-9])?@[A-Za-zO-9]+(?:\.net|\.org) O [A-Za-zO-9](?:[A-Za-zO-9.]{0,4}[A-Za-zO-9])?@[A-Za-zO-9]+.(?:net|org) O [A-Za-z0-9][A-Za-zO-9.]{0,4}[A-Za-zO-9]@[A-Za-z-9]+(?:\.net|\.org) O [A-Za-z0-9]{1,6}@[A-Za-z0-9]+(?:\.net|\.org) O [A-Za-z0-9](?:[A-Za-z0-9.]{0,4}[A-Za-zO-9])?@[A-Za-z0-9]+(?:\.net|\.org) O none of the options are correct
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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