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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.
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.
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.
What are some advantages of NetFlow?
NetFlow was developed by Cisco Systems to allow monitoring of internet and network traffic. The advantage of this is that possible security threats can be intercepted and workers slacking off can be monitored.
Which set of policies adheres to the hierarchical network model design principles?
Policies that adhere to the hierarchical network model design principles typically include segmentation of the network into distinct layers—core, distribution, and access. This structure promotes scalability, reliability, and efficient traffic management by centralizing routing at the core layer, distributing policies at the distribution layer, and managing endpoint access at the access layer. Additionally, these policies often emphasize redundancy and fault tolerance to ensure high availability and performance across the network. Overall, the focus is on clear separation of roles and responsibilities within each layer to optimize network functionality.
Distributing data transfer activity equally over several devices or components belongs to which category of network management services?
Load Balancing
What type of tools are available for network management?
A network manager would like to have network management capabilities when (a) a component of the network fails, (b) a component of the network is about to fail, and is acting "flaky" (c) a component of the network has been compromised from a security standpoint and is attacking the network, e.g., by launching a DOS attack by flooding the network with packets, (d) traffic levels exceed a certain threshold on a link, causing packets to be dropped, (e) everything is running smoothly (in order to know that everything is running smoothly and there are no problems). There are many additional reasons as well.
