Network Communication Fundamentals

<p>Data can only flow in one direction at a time (D)</p> Signup and view all the answers

<p>Allows simultaneous data transmission in both directions (D)</p> Signup and view all the answers

<p>Printer interfaces (D)</p> Signup and view all the answers

<p>Switch (D)</p> Signup and view all the answers

<p>One-directional data transmission (B)</p> Signup and view all the answers

<p>To hide internal IP addresses by using a public IP. (A)</p> Signup and view all the answers

<p>Stateful Inspection Firewall (D)</p> Signup and view all the answers

<p>To translate communication between incompatible protocols. (C)</p> Signup and view all the answers

<p>Intrusion prevention systems and deep packet inspection (D)</p> Signup and view all the answers

<p>Connecting VoIP calls to traditional phone lines (A)</p> Signup and view all the answers

<p>Address translation between networks (A)</p> Signup and view all the answers

<p>To protect web applications from HTTP/HTTPS threats (A)</p> Signup and view all the answers

<p>It acts as an intermediary that inspects applications and limits access. (A)</p> Signup and view all the answers

<p>Video conferencing (B)</p> Signup and view all the answers

<p>Converting digital data to analog signals (C)</p> Signup and view all the answers

<p>Configuring network settings (A)</p> Signup and view all the answers

<p>Text messaging (B)</p> Signup and view all the answers

<p>A hub shares a communication medium, whereas a switch creates separate collision domains. (D)</p> Signup and view all the answers

<p>Transceiver (D)</p> Signup and view all the answers

<p>It requires both parties to be present for communication to occur. (D)</p> Signup and view all the answers

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

<p>To forward data packets between different networks (D)</p> Signup and view all the answers

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

<p>Can be expanded by adding additional cards or modules (B)</p> Signup and view all the answers

<p>It operates within the core of large networks at high speeds. (B)</p> Signup and view all the answers

<p>Segmenting networks for better traffic management and security (B)</p> Signup and view all the answers

<p>Cloud environments or virtualized networks (C)</p> Signup and view all the answers

<p>Transit Router (C)</p> Signup and view all the answers

<p>It monitors and controls network traffic based on security rules. (C)</p> Signup and view all the answers

<p>To connect two network segments as a single network. (B)</p> Signup and view all the answers

<p>Bridges learn MAC addresses and build a MAC address table. (C)</p> Signup and view all the answers

<p>By creating multiple collision domains for each port. (D)</p> Signup and view all the answers

<p>Managed switches can be configured to support VLANs. (B)</p> Signup and view all the answers

<p>They combine the functionalities of switches and routers. (C)</p> Signup and view all the answers

<p>Unmanaged Switch (C)</p> Signup and view all the answers

<p>Full-duplex communication (C)</p> Signup and view all the answers

<p>Each bridge segment creates a single collision domain, while each switch port creates separate collision domains. (B)</p> Signup and view all the answers

Data travels one bit at a time over a single channel. It's like a one-way street, information flows in only one direction.

Transmitting multiple bits simultaneously across multiple channels. Like a highway with many lanes, data can travel much faster.

Communication happens only in one direction. It's like sending a letter, you can't get a reply.

Communication can occur in both directions, but not at the same time. It's like using a walkie-talkie, you have to wait for the other person to finish talking.

Communication flows in both directions simultaneously. It's like a phone call, you can talk and listen at the same time.

Data exchange occurs in real-time, requiring both sender and receiver to be active at the same time.

Data transmission occurs without any time synchronization between the sender and receiver.

A device that converts digital signals from a computer into analog signals for transmission over communication channels, and vice versa.

A network device that receives, amplifies, and retransmits signals to extend the range of communication.

A device that transmits all incoming information to all connected devices on a network.

A networking device that connects different networks and forwards data packets between them. It manipulates IP addresses to decide where to send data.

A type of router specifically designed for home use, including an integrated Wi-Fi access point.

A router used in large businesses or data centers. It can be expanded with modules to add more features or ports.

A software-based virtualized router that runs on physical servers or in virtualized environments. It's ideal for cloud environments.

A security system that monitors and controls incoming and outgoing network traffic based on predefined rules. It acts as a barrier between trusted and untrusted networks.

A type of router that is positioned at the edge of the network, handling security, routing, and traffic control.

Used in offices, data centers, and home networks to connect computers, printers, and servers. They manage network traffic and can be configured for security.

A feature of managed switches that divides a network into smaller, isolated segments for better traffic management and security.

A networking device that connects two network segments, creating a single network. They work at Layer 2 (data link layer) and manage data frames and MAC addresses. Bridges filter traffic by examining MAC addresses to reduce unnecessary data collisions.

Bridges create a separate collision domain for each segment they connect. This means that devices on different segments can communicate without interfering with each other, reducing the chance of data collisions.

Bridges maintain a MAC address table to track which devices are on each segment. This allows them to efficiently forward data frames to the correct destination.

A networking device that connects multiple devices within a local area network (LAN). They are more advanced than bridges and can work at various network layers.

Switches create separate collision domains for each port they connect. This means that data traffic between devices on different ports doesn't interfere with each other, leading to efficient data transmission.

Switches maintain a MAC address table to learn the MAC addresses of devices connected to them. This enables intelligent data forwarding based on the destination device's address.

Switches can support full-duplex communication, where devices can send and receive data simultaneously on a port. This eliminates the need for collision detection and further boosts network performance.

A firewall feature that allows you to specify rules for what traffic is allowed in or out of a network. This can be based on things like the source and destination of traffic, the ports used, and the type of protocol.

A firewall technique that hides the real IP addresses of computers inside a network by substituting them with the public IP of the firewall. This makes it harder for attackers to directly target machines on the network.

Packet-filtering firewalls examine the headers of data packets to see if they should be allowed through the firewall. They're like basic security guards who only look at the outside of a package.

Proxy firewalls act like middlemen, intercepting and inspecting traffic before it reaches the network. They are more sophisticated, looking at the content of the traffic.

Stateful inspection firewalls track the communication sessions between devices and only allow packets if they belong to an established connection. This prevents unauthorized connections.

Next-generation firewalls (NGFWs) combine traditional features with advanced techniques like intrusion prevention systems (IPS), deep packet inspection (DPI), and the ability to detect and stop sophisticated attacks.

Web application firewalls (WAFs) specialize in protecting web applications from various attacks by inspecting the HTTP/HTTPS traffic. They are like guardians of web applications.

A gateway acts as a connection point between networks with different protocols or architectures. It's responsible for translating communication between incompatible systems, ensuring seamless interaction.