What is a URL?
Define what a Uniform Resource Locator (URL) is and its purpose on the internet.
What are the four components of a URL?
Identify and explain the four main parts of a URL.
What is the difference between an IP address and a domain name?
Describe how an IP address and a domain name serve different roles in locating websites and facilitating internet communication.
How does HTTP differ from HTTPS?
Explain the distinction between HTTP and HTTPS.
What is DNS?
Define the Domain Name System (DNS) and describe how it works.
How do a web server and a browser interact when accessing a website?
Outline the steps involved in the communication between a user's browser and a web server when a website is visited.
What is the Internet Protocol stack, and in which layer does HTTP operate?
Describe the layered architecture of the Internet Protocol stack and indicate the specific layer in which the HTTP protocol functions.
What is the difference between a LAN and a WAN?
Compare Local Area Networks (LANs) and Wide Area Networks (WANs) in terms of scope, infrastructure, and typical use cases.
What is a gateway in a LAN?
Define the role of a gateway in a local network and its importance in external communication.
How does a gateway determine whether a destination IP address is within the same LAN?
Explain how a gateway uses subnet masking to decide if the destination IP address belongs to the local network or needs to be routed externally.
If a LAN uses the subnet mask 255.255.255.0, how many usable IP addresses are available?
Calculate the number of usable IP addresses in a LAN given the subnet mask 255.255.255.0.
What are two methods a web server can use to remember a user's information, and what is their key difference?
Identify two techniques that enable a web server to store user information, and explain the main difference between them.
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