Web Servers Chapter 6 Quiz

Explanation
Narrowband lines typically have transmission speeds less than 56 kbps. This means that the data transfer rate for narrowband lines is slower than 56 kbps. Narrowband lines are commonly used for voice communication and low-speed data transmission, such as dial-up internet connections. The term "narrowband" refers to the limited bandwidth available for these types of lines, which restricts the amount of data that can be transmitted at any given time.

Explanation
Ethernet is the protocol standard used for wired LAN connections that specifies hardware characteristics, such as which wire carries which signals. Ethernet is a widely used technology for local area networks, allowing devices to communicate and share resources over a wired connection. It defines the physical and data link layer specifications, including the wiring scheme, signaling, and transmission speeds. Ethernet uses various standards, such as 10BASE-T, 100BASE-TX, and 1000BASE-T, to define the specific characteristics of the wired connections.

Explanation
FTP (File Transfer Protocol) is a widely used protocol for transferring files over the internet. It allows users to upload and download files between their local computer and a remote server. Maintaining websites often involves updating and managing files on the server, such as uploading new content, modifying existing files, or removing outdated files. Therefore, using FTP to maintain websites is a common and efficient method for managing the files and ensuring the website is up to date.

Explanation
A VPN, or Virtual Private Network, is a technology that utilizes the Internet to establish secure and private connections between two or more devices or networks. By creating a virtual tunnel, it allows users to transmit data securely over a public network, such as the Internet, as if they were directly connected to a private network. This ensures that the data transmitted is encrypted and protected from unauthorized access, providing confidentiality and privacy.

Explanation
Wireless devices such as mice and keyboards use Bluetooth technology to connect to the computer. Bluetooth is a wireless communication standard that allows devices to connect and exchange data over short distances. It uses radio waves to establish a connection between the device and the computer, eliminating the need for cables or wires. Bluetooth is widely used in various devices, including smartphones, tablets, and laptops, to enable wireless connectivity and easy data transfer.

Explanation
The IEEE 802.3 protocol standard is commonly referred to as Ethernet. Ethernet is a widely used networking technology that defines the physical and data link layer specifications for wired local area networks (LANs). It provides a set of rules for how devices communicate and transmit data over a network, allowing for reliable and efficient data transfer. The term "Ethernet" is often used interchangeably with the IEEE 802.3 standard, as they both refer to the same set of protocols and specifications.

Explanation
The user tier in a web application architecture consists of the computers that have browsers that request and process web pages. These computers are responsible for interacting with the application interface and displaying the content to the users. They send requests to the server tier to retrieve data or perform actions, and then process the received responses to present the information in a user-friendly manner. The user tier plays a crucial role in enabling users to access and interact with the web application.

Explanation
An IP address is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. This address serves two main functions: identifying the host or network interface and providing the location of the device in the network. By using IP addresses, devices can communicate with each other and transfer data across the internet.

Explanation
The second tier in the three-tier architecture arrangement is the server tier. This tier is responsible for processing and managing the business logic of an application. It handles tasks such as data processing, application logic, and communication between the presentation tier and the data tier. The server tier acts as an intermediary between the client-side interface and the database, ensuring smooth and efficient operation of the application.

Explanation
When an individual uses the Internet, but not the Web, he or she is using FTP. FTP stands for File Transfer Protocol, which is a standard network protocol used to transfer files between a client and a server on a computer network. Unlike the Web, which is a system of interconnected documents and resources accessed through the Internet, FTP specifically focuses on the transfer of files. Therefore, if someone is using the Internet for file transfer purposes, they are using FTP.

Explanation
A LAN (Local Area Network) is a network that connects devices within a limited area, such as a home, office, or building. The distinguishing characteristic of a LAN is that it connects at a single location, meaning that all devices within the network are physically connected to a central point, such as a router or switch. This allows for efficient and high-speed communication between devices within the LAN, facilitating file sharing, resource sharing, and collaboration among users.

Explanation
An ISP, or Internet Service Provider, is a company that provides internet access to users. They serve as the connection between the user's device and the internet, acting as a gateway. The ISP provides the necessary infrastructure and services to enable users to access the internet, such as providing a modem or router, establishing the connection, and managing the network. Without an ISP, users would not be able to connect to the internet and access online services and websites.

Explanation
A protocol is a set of rules that two communication devices follow. These rules define the format, timing, sequencing, and error control of data transmission between devices. By adhering to the same protocol, devices can communicate effectively and ensure that data is transmitted accurately and efficiently.

Explanation
The correct answer is NIC. A NIC (Network Interface Card) is a hardware component that connects a device's circuitry to the cable in a LAN (Local Area Network). It allows the device to send and receive data over the network by converting digital signals from the device into analog signals that can be transmitted over the cable, and vice versa. The NIC acts as the interface between the device and the network, enabling communication between them.

Explanation
TCP (Transmission Control Protocol) is a reliable internet transport protocol because it ensures that data packets are delivered accurately and in the correct order. It establishes a connection between the sender and receiver, performs error checking, and retransmits any lost or corrupted packets. TCP also implements flow control mechanisms to prevent congestion and ensure efficient data transfer. Overall, TCP provides a reliable and robust transport mechanism for internet communication.

Explanation
The computers in two separate company sites must be connected using a WAN (Wide Area Network). A WAN is a network that spans a large geographical area, allowing computers and devices in different locations to communicate with each other. It provides long-distance connectivity and enables data transfer between the two sites over a wide area, such as connecting offices in different cities or countries. This type of network is necessary when the sites are physically distant from each other and need to share resources, data, and information securely and efficiently.

Explanation
HTML (Hypertext Markup Language) is the most common language used for defining the structure and layout of web pages. It is the standard markup language for creating web documents and is used to describe the structure of content on a webpage, including headings, paragraphs, images, links, and various other elements. HTML allows web browsers to interpret and display the content of a webpage correctly, making it an essential language for web development.

Explanation
The correct answer is "secure" because HTTPS is an acronym for Hypertext Transfer Protocol Secure. It is the secure version of HTTP, where data is encrypted and transmitted over a secure connection. This ensures that the information exchanged between a user's browser and a website is protected from unauthorized access or tampering.

Explanation
The term "web" refers to the Internet-based network of browsers and servers that process HTTP or HTTPS. This network allows users to access and navigate through various websites and web pages. The web is a crucial component of the Internet infrastructure, enabling the exchange of information and the delivery of web content to users worldwide.

Explanation
Web servers are responsible for sending and receiving web pages to and from clients. When a client sends a request for a web page, the web server processes the request and sends the requested web page back to the client. This communication between the web server and the client allows users to access and view web pages on the internet. Therefore, the statement that web servers send and receive web pages to and from clients is true.