E-mail address MCQs Quiz | Class 10
This quiz on E-mail address MCQs Quiz | Class 10 is designed for Class X students of Computer Applications (Code 165). It covers essential topics like the structure of an email address (username@domain) and basic email etiquette. Test your knowledge, submit your answers to see your score, and download a detailed answer PDF for review.
Understanding E-mail Addresses and Etiquette
Electronic mail, or email, is a fundamental communication tool in the digital age, essential for both personal and professional interactions. An email address acts as your unique identifier on the internet, allowing you to send and receive messages globally. Understanding its structure and the associated etiquette is crucial for effective and respectful communication.
The Structure of an E-mail Address: username@domain
Every email address follows a standard format: username@domain_name. This structure clearly separates the individual user from the email service provider or organization they belong to.
- Username: This is the unique name that identifies you on a specific email server. It can contain letters (a-z), numbers (0-9), and certain special characters like periods (.), hyphens (-), and underscores (_). Spaces and most other special characters are generally not allowed. The username must be unique within its domain.
- @ Symbol (At Sign): This symbol is a mandatory separator. It acts as a bridge, indicating “at” which domain the user’s account is located.
- Domain Name: This part identifies the email service provider (e.g., gmail.com, outlook.com) or the organization/company (e.g., example.edu, mycompany.com) that hosts the email account. It consists of a second-level domain (e.g., “gmail”, “outlook”) and a top-level domain (e.g., “.com”, “.org”, “.edu”, “.in”).
Example: student.name123@cbsequiz.in
student.name123is the username.@is the separator.cbsequiz.inis the domain name.
Basic E-mail Etiquette
Email etiquette refers to the set of unwritten rules and guidelines for professional and courteous behavior when composing and sending emails. Adhering to these rules ensures clear communication and avoids misunderstandings.
- Clear Subject Line: Always use a concise and descriptive subject line that gives the recipient an idea of the email’s content. Avoid vague subjects like “Hello” or “Urgent.”
- Professional Salutation and Closing: Start with an appropriate greeting (e.g., “Dear Sir/Madam”, “Hello [Name]”) and end with a professional closing (e.g., “Regards”, “Sincerely”).
- Concise and Clear Body: Get straight to the point. Use clear language, proper grammar, and punctuation. Break long emails into paragraphs for readability.
- Proofread: Always check for spelling and grammatical errors before sending. A poorly written email can reflect negatively on you.
- Attachments: Mention any attachments in the email body. Ensure file names are clear and files are of a reasonable size.
- Reply All vs. Reply: Use “Reply All” only when your response is relevant to everyone in the original conversation. Otherwise, use “Reply.”
- Tone: Be mindful that tone can be hard to convey in text. Avoid sarcasm or overly informal language in professional settings.
- Avoid ALL CAPS: Typing in all capital letters is considered shouting and is generally inappropriate.
Quick Revision
- Email addresses uniquely identify users online.
- Structure:
username@domain_name. @separates username from domain.- Username rules: letters, numbers, periods, hyphens, underscores (no spaces).
- Domain name identifies the service provider or organization.
- Good etiquette includes clear subject lines, professional greetings, concise messages, and proofreading.
- Use “Reply All” judiciously.
Practice Questions (5 MCQs)
Test your knowledge further with these additional questions:
- Which part of
info@website.orgis the username?- website.org
- org
- info
- @
- A good email subject line should be:
- Very long and detailed
- Blank
- Catchy but irrelevant
- Clear and concise
- What does ‘CC’ stand for in email terminology?
- Confidential Copy
- Carbon Copy
- Content Control
- Company Communication
- Which symbol is used to send a ‘blind carbon copy’ where recipients cannot see each other?
- To
- CC
- BCC
- Subject
- When attaching a document to an email, it’s good practice to:
- Attach large files without compression
- Not mention the attachment in the email body
- Ensure the file is virus-free and appropriately named
- Send multiple irrelevant attachments

Content created and reviewed by the CBSE Quiz Editorial Team based on the latest NCERT textbooks and CBSE syllabus. Our goal is to help students practice concepts clearly, confidently, and exam-ready through well-structured MCQs and revision content.