Review Questions - M2

When data is sent or received through a computer network, it is divided into smaller units called packets. These packets contain a portion of the original message along with additional information such as the source and destination addresses. This division into packets allows for efficient transmission over the network, as each packet can take a different route and be reassembled at the destination.

A browser is an application that allows users to access content on the World Wide Web or a LAN. It is a software program that enables users to view and interact with websites, web pages, and other online content. Browsers provide a graphical user interface for users to navigate through the internet, search for information, and view various types of media such as text, images, videos, and audio. They also support features like bookmarks, history, and extensions to enhance the browsing experience. Overall, a browser acts as a gateway between the user and the internet, enabling them to access and consume online content.

The correct answer is "Cache". In web browsing, the browser uses a pre-determined amount of disk space to temporarily store files that it displays. This temporary storage is known as the cache. The cache helps to speed up the browsing experience by storing frequently accessed files locally, so they can be retrieved quickly without having to download them again from the internet.

A static IP address is the type of IP address that will always stay the same when associated with a user's account. Unlike dynamic IP addresses, which can change each time a user connects to the network, a static IP address remains constant and provides a fixed identification for the user. This can be useful for certain applications that require a consistent IP address, such as hosting a website or setting up remote access to a network.

An IP address is a unique number that is assigned to each device on a computer network. It is used to identify and locate devices on the network, allowing them to communicate with each other. The IP standard refers to the set of rules and protocols that govern the way data is transmitted over the internet. By using IP addresses, devices can send and receive data packets across the network, enabling communication and data transfer between different devices.

DSL is described as being much faster than a dial-up connection. This means that DSL provides a quicker and more efficient internet connection compared to the slower speeds of dial-up. The other options mentioned, such as DSL customers not being able to surf while talking on the phone and needing a separate line for phone service, are not accurate descriptions of DSL. Therefore, the correct answer is that DSL is much faster than a dial-up connection.

DHCP stands for Dynamic Host Configuration Protocol. It is a network protocol used to automatically assign unique IP addresses to devices on a computer network. This protocol allows devices to join a network and obtain an IP address without manual configuration. DHCP ensures efficient and centralized management of IP addresses, making it easier to connect and communicate between devices on a network.

The command "IPCONFIG" is used to view information on the various network addresses and devices involved in a system's network connections. It displays the IP address, subnet mask, default gateway, and other network configuration details for all active network interfaces on the system. This command is commonly used in troubleshooting network connectivity issues and gathering network information.

Cookies are small text files that a server sends to a web browser and are returned every time the browser accesses that server. These files are used to store information about the user's preferences, login credentials, and browsing history. They allow websites to remember specific user information and provide a personalized experience.

A DSLAM is indeed a network device that separates data signals and voice signals. It is typically used in digital subscriber line (DSL) networks to aggregate multiple customer connections and direct them to the appropriate destination. By separating data and voice signals, the DSLAM ensures efficient transmission and delivery of both types of signals without interference or degradation in quality.

DSL filters are required in an AT&T customer's home to separate or "split" the DSL signal from the low frequency voice signal. This is necessary because DSL signals and voice signals operate at different frequencies, and without a filter, the two signals would interfere with each other, causing poor voice quality and slow internet speeds. The filter ensures that the DSL signal is directed to the appropriate devices while allowing the voice signal to be transmitted to telephones and other voice devices without any interference.

A client is indeed a computer application that depends on another remote application to carry out storage, communications, or processing tasks. In this scenario, the client application does not have the necessary resources or capabilities to perform these functions on its own, so it relies on the remote application to fulfill these tasks.

The DSLAM (Digital Subscriber Line Access Multiplexer) and Rback (Remote Access Server) are network devices that are responsible for providing internet connectivity to customers. To establish a connection, they need to be provisioned with the customer's unique VP (Virtual Path) and VC (Virtual Circuit) circuit information. This information helps in routing the customer's data packets correctly through the network. Therefore, the statement is true.

Ethernet or USB cables connect a customer's computer to the CPE (Customer Premises Equipment). These cables are used to establish a physical connection between the computer and the CPE device, allowing data to be transferred between the two. Ethernet cables are commonly used for wired connections, while USB cables can also be used for connecting certain devices to the CPE.

AT&T does support IPv6, the next-generation IP address specification. Therefore, the given answer is incorrect.

The given statement is incorrect. The three types of internet connections are not Static, Open, and Dynamic. The correct types of internet connections are Dial-up, Broadband, and Wireless.

IP passthrough is the correct answer because it is a router-enabled feature that allows all unsolicited incoming traffic to be directed to a single computer on the network. This feature essentially "passes through" all incoming traffic to a specific IP address, allowing that computer to receive and respond to the incoming requests. IP passthrough is commonly used for applications such as gaming or hosting servers, where it is necessary to direct all incoming traffic to a specific computer on the network.

The first component of the DSL circuit is the customer's computer. This is because the customer's computer is the device that initiates the connection and sends the data over the DSL line. The DSL circuit connects the customer's computer to the internet service provider's network, allowing the customer to access the internet. The other options listed, such as CPE (Customer Premises Equipment), DSLAM (Digital Subscriber Line Access Multiplexer), and Ethernet cable, are all components that are involved in the DSL circuit, but they come after the customer's computer in the connection process.

Sync refers to the ongoing or constant communication between a modem and the DSLAM (Digital Subscriber Line Access Multiplexer). This communication is essential for establishing and maintaining a stable connection between the user's modem and the DSLAM, which acts as the gateway to the internet service provider's network. The sync process ensures that the modem and DSLAM are properly synchronized, allowing for reliable data transmission and reception.

A segment ping does not verify that the DSL modem is only in sync with the DSLAM. It is used to test the connectivity between two devices on the same network segment. Therefore, the statement is false.