Chapter 3

<p>By connecting all computers to support various communication types. (B)</p> Signup and view all the answers

<p>It is the computer that requests data from the server. (D)</p> Signup and view all the answers

<p>Point-to-point connections (C)</p> Signup and view all the answers

<p>ISPs offer a modem that converts bits for carrier compatibility (A)</p> Signup and view all the answers

<p>Top-level domains (A)</p> Signup and view all the answers

<p>To provide the correct IP address for a specific domain (B)</p> Signup and view all the answers

<p>It reduces the need for redundant server queries (B)</p> Signup and view all the answers

<p>Using multiple copies of information for reliability (B)</p> Signup and view all the answers

<p>Gateway connections through intranets (A)</p> Signup and view all the answers

<p>The DNS cannot resolve a domain if it is not registered with an ANS. (C)</p> Signup and view all the answers

<p>802.11 (A)</p> Signup and view all the answers

<p>To provide IP addresses for top-level domains (B)</p> Signup and view all the answers

<p>It breaks down signals into packets for transmission. (D)</p> Signup and view all the answers

<p>They store information about previous interactions on the client. (B)</p> Signup and view all the answers

<p>The IP address it is sent to and a sequence number. (B)</p> Signup and view all the answers

<p>WANs are broader networks, whereas LANs connect computers that are geographically closer. (C)</p> Signup and view all the answers

<p>It decides the next router for an IP packet based on its destination. (A)</p> Signup and view all the answers

<p>The number of routers a packet passes through. (A)</p> Signup and view all the answers

<p>They are independent and can take different routes. (A)</p> Signup and view all the answers

<p>Requires a dedicated connection for each device. (B)</p> Signup and view all the answers

<p>A unique IP address. (C)</p> Signup and view all the answers

<p>It allows independent delivery with higher resilience. (C)</p> Signup and view all the answers

<p>User interface operations like displaying a calendar. (C)</p> Signup and view all the answers

<p>Each packet must be precisely addressed and can take different routes. (C)</p> Signup and view all the answers

<p>Only one computer is successful, and the other must retry. (C)</p> Signup and view all the answers

Communication where both sender and receiver are active at the same time.

Communication where sending and receiving happen at different times.

A system where one computer (client) requests services from another computer (server).

Communication between a single sender and a single receiver.

The internet supports point-to-point asynchronous communications, as well as many other types of communication like synchronous and broadcast.

A communication model where a client sends a request to a server and the server responds with a service. Many clients can interact with a single server concurrently.

Small files stored on a client's computer by a server. They're sent back to the server with each page request, allowing the server to remember past interactions with the client.

Information added to a URL by a client when connecting to a server. This data is used by the server to understand the client's request.

Actions performed by a client's software, like displaying a travel calendar.

Actions performed by a server's software, such as searching flight availability.

A unique numerical address assigned to each computer connected to the internet.

A unit of data sent between computers over the internet. It contains the recipient's IP address, sender's IP address, and the message itself.

The actual data or message being transmitted within an IP packet.

The process of directing an IP packet through the internet network from its source to its destination.

A device that connects multiple computers or routers together in a network.

A device that connects multiple networks together and forwards IP packets based on their destination addresses.

The transition of an IP packet from one router to another as it travels across the interenet.

A tool used to track the path of an IP packet as it travels through the internet.

A suite of protocols defining how data is transmitted over the internet. It ensures reliable and ordered delivery of data.

A network connecting computers over large geographical distances, often using public networks like the internet.

A network connecting computers within a limited geographical area, such as a building or office.

A technology for connecting computers in a LAN, enabling high-speed data transfer.

Ethernet uses broadcasting, meaning data is sent to all connected devices. The internet uses point-to-point communication, with data sent directly between two devices. This means only one communication can happen at a time on Ethernet, while the internet allows multiple simultaneous communications.

An ISP provides access to the internet. They sell connections and often provide equipment like modems, routers, or other necessary hardware.

A modem converts the digital signals your computer produces into a form compatible with the carrier's network, and vice versa. It acts as a translator between your computer and the internet.

A Local Area Network (LAN) is a private network within an organization. It allows communication within the organization and often connects to the internet via a gateway.

A wireless network is similar to a LAN but uses radio frequency (RF) signals instead of wires. It relies on a router connected to an ISP's modem to access the internet.

Domain names make it easier to remember websites by replacing complex IP addresses with user-friendly names. They also reflect a hierarchical organizational structure.

The Domain Name System (DNS) is a hierarchical structure that assigns domain names to computers and translates them into their corresponding IP addresses.

TLDs are the highest level in the domain name hierarchy, indicating the type of organization or location. Examples include .edu for education, .gov for government, and .com for commercial entities.

An Authoritative Name Server (ANS) stores the IP addresses for computers within a specific domain. It verifies the domain name and provides its corresponding IP address to other servers.

Caching is the process of storing recently retrieved information for faster access in the future. When a DNS server receives an IP address, it caches it, reducing the need to request the information again.