Internet Flashcards
What is a computer network?
A computer network is a group of interconnected computers and devices that can share resources, data, and applications.
Types of computer networks.
Local Area Network (LAN): Connects computers within a small geographic area, like a single building.
Wide Area Network (WAN): Covers a large geographic area, connecting multiple LANs.
Metropolitan Area Network (MAN): Spans a city or a large campus.
Personal Area Network (PAN): Connects personal devices within the range of an individual.
List five network topologies.
Bus, Ring, Star, Mesh, Tree, Hybrid.
Name six components of a computer network.
Servers, Clients, Routers, Switches, Gateways, Firewalls, Modems.
Network Configurations:
Client-Server.
Peer-to-Peer.
Network Protocols.
Client-Server: A central server manages resources, and clients access those resources. Examples: Email servers, web servers.
Peer-to-Peer: Each device can act as both a client and a server, sharing resources directly. Examples: File sharing networks, local networks without a dedicated server.
Network Protocols: Define rules for data exchange, ensuring reliable and standardized communication. Examples TCP/IP, HTTP, FTP, SMTP, POP3, IMAP.
Uses of the Internet
Communication - Email, instant messaging, video conferencing, social media.
Information Sharing - Websites, blogs, forums, online databases.
E-commerce - Online shopping, banking, trading, auctions.
Entertainment -Streaming media, online gaming, virtual reality.
Remote Access - Remote desktop, cloud computing, file sharing.
Electronic Mail (E-mail) Definition:
E-mail is a method of sending and receiving electronic messages over a computer network.
List the components of an email.
Email Client: Software used to read and send emails.
Email Server: Manages the storage and delivery of emails. (SMTP, POP3/IMAP
Email Address: Unique identifier for email recipients.
Subject Line: Brief summary of the email content.
Body: Main content of the email.
Attachments: Files sent along with the email.
Name six features of email.
Forwarding,
Replying,
CC (Carbon Copy): Sends a copy of the email to additional recipients, visible to all.
BCC (Blind Carbon Copy): Sends a copy of the email to additional recipients, invisible to other recipients.
Address Book,
Folders,
Spam filtering.
Name three email protocols.
SMTP (Simple Mail Transfer Protocol): Used for sending emails.
POP3 (Post Office Protocol 3): Used for retrieving emails, downloads and stores emails to local device, and often deletes them from the server.
IMAP (Internet Message Access Protocol): Used for retrieving emails, keeps emails on the server, allowing access from multiple devices.
How can you organize and manage your emails effectively?
Use folders and labels to categorize emails.
Set up rules and filters to automatically sort incoming emails.
Regularly delete or archive old emails.
Use the search function to find specific emails quickly.
What are the potential security risks associated with email communication, and how can they be mitigated?
Risks: Phishing, malware, spam, unauthorized access.
Mitigation: Use strong, unique passwords and change them regularly.
Enable two-factor authentication.
Use email filters and security software.
Educate users on recognizing phishing attempts.
Explain the role of network protocols in facilitating communication over the Internet.
Network Protocols: Define rules for data exchange, ensuring reliable and standardized communication.
Examples: TCP/IP, HTTP, FTP, SMTP.
