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Once thought of as a perimeter defense security layer, firewalls are being brought into the infrastructure to protect different segments of the network such as finance, HR and engineering. Using firewalls as part of the internal network security solution will provide additional layers of access control to protect against the organization's sprawling definition of "authorized user," as well as provide attack containment. Adding firewalls to the infrastructure enables enterprises to protect specific resources, forcing users to authenticate themselves as they move from network to network, thereby reducing the risk of unauthorized access to sensitive information. In addition to user containment, internal firewalls add attack containment to the network to prevent damages from spreading in the event that an attack occurs. Examples of effective use of network segmentation include wireless LANs and customer extranets. Placing these users in their own segment, behind their own policy-based firewall, will allow enterprises to contain the users as well as any potential damages that may occur if an attack were to succeed. Rather than buying a separate, physical firewall for every segment, Juniper Networks provides the ability to segment the network through the high physical and virtual port densities of our products. Once thought of as a perimeter defense security layer, firewalls are being brought into the infrastructure to protect different segments of the network such as finance, HR and engineering. Using firewalls as part of the internal network security solution will provide additional layers of access control to protect against the organization's sprawling definition of "authorized user," as well as provide attack containment. Adding firewalls to the infrastructure enables enterprises to protect specific resources, forcing users to authenticate themselves as they move from network to network, thereby reducing the risk of unauthorized access to sensitive information. In addition to user containment, internal firewalls add attack containment to the network to prevent damages from spreading in the event that an attack occurs. Examples of effective use of network segmentation include wireless LANs and customer extranets. Placing these users in their own segment, behind their own policy-based firewall, will allow enterprises to contain the users as well as any potential damages that may occur if an attack were to succeed. Rather than buying a separate, physical firewall for every segment, Juniper Networks provides the ability to segment the network through the high physical and virtual port densities of our products.
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What is a network traffic analyzer used for?
A network traffic analyzer is used for analyzing and monitoring the use of network traffic for many devices. Network Traffic Analyzer is also used to monitor the wireless network performance.
How VLAN reduces the network traffic?
yes, it reducing the network traffic
What is the name of the tool used to control the traffic that is entering or leaving your network?
The tool used to regulate the traffic that traverses into or out of a network is known as a firewall. It serves as a security barrier, scrutinizing the network traffic based on predefined rules, and blocks or permits data packets accordingly. It's an essential component in maintaining the security and integrity of a network.
What is an inline device?
Device which are on the network and the traffic is passing thru it.
What are advantage of hierarchical routing?
Network Admidistrators use routers in large networks for packet filtering, connections between LAN's and WAN's and traffic control. The main benefit of these is that it filters traffic to where if a packet is sent on a local segment it will get discarded if it does not apply to any other devices on the network.
A device that filters data traffic at a network boun dery and reduce the amount of traffic on a LAN by dividing it into two segments?
The device you’re referring to is typically a router or a switch with VLAN (Virtual Local Area Network) capabilities. By segmenting the network into two or more parts, it reduces broadcast traffic and improves overall network performance. This segmentation helps isolate network issues and enhances security by controlling traffic flow between segments. Additionally, it allows for better management of network resources and can improve bandwidth utilization.
What is meant by network traffic management?
Network traffic management is an information technology term used to describe the management of the usage on a computer network and is routinely implemented to keep speeds high by controlling what a person can and can't access.
Where do you create VLAN and what for it is used?
VLANs (Virtual Local Area Networks) are created on network switches, specifically through their management interfaces, which can be accessed via web interfaces, command-line interfaces, or network management software. VLANs are used to segment a physical network into multiple logical networks, improving security and reducing broadcast traffic by isolating devices within the same physical infrastructure based on functional or departmental requirements. This segmentation enhances network performance and simplifies network management by allowing different policies and configurations for each VLAN.
When a network is logically divided into smaller networks what's created?
When a network is logically divided into smaller networks, subnetworks or subnets are created. This segmentation improves network management, enhances security, and optimizes performance by reducing broadcast domains. Each subnet can operate independently while still being part of the larger network, allowing for more efficient use of resources and better traffic control.
Which hardware device at layer 2 offer duplex transmission and has VLAN capability?
A network switch operates at layer 2 of the OSI model and supports duplex transmission, allowing for simultaneous two-way communication. Additionally, switches can handle Virtual Local Area Networks (VLANs), enabling the segmentation of network traffic for improved management and security. This functionality makes switches essential for modern network architecture.
Which two types of traffic are always transmitted as untagged frames?
Management traffic and native VLAN traffic are always transmitted as untagged frames. Management traffic is used for device configuration and monitoring, while native VLAN traffic is traffic that is not associated with any specific VLAN and is transmitted untagged within a VLAN network.
What is a network traffic analyzer used for?
A network traffic analyzer is used for analyzing and monitoring the use of network traffic for many devices. Network Traffic Analyzer is also used to monitor the wireless network performance.
What is the difference between static aspect and dynamic aspect of Qos management?
Static aspects of QoS management involve setting predefined parameters and configurations for network traffic handling, such as minimum bandwidth guarantees or priority levels. Dynamic aspects involve real-time adjustments and optimizations based on current network conditions, traffic load, and performance requirements. Dynamic QoS management is more adaptable and responsive to changing network conditions compared to static QoS management.
How VLAN reduces the network traffic?
yes, it reducing the network traffic
How do you trace the network traffic?
Tracing network traffic requires a network monitor, protocol analyzer, or packet sniffer.
What is the management port on a router called?
A management port is typically a port which does not forward normal network traffic and is only used for remote management. It allows you telnet or SSH into the router for management purposes. Typically all other protocols are blocked on this interface and it is normally placed on the management network and is separated from all other networks passing through the router.
Could explain briefly the purpose of bridge network?
A bridge network connects two or more separate networks, allowing them to communicate as if they were a single network. It operates at the data link layer (Layer 2) of the OSI model, filtering traffic and reducing collisions by segmenting traffic into different collision domains. This enhances overall network performance and efficiency, facilitating better management of network traffic and improving data flow between devices. Additionally, bridge networks can help in integrating different network technologies or extending network reach.
