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In this paper, an improved secure address resoluti
on protocol is presented where ARP spoofing
attack is prevented. The proposed methodology is a
centralised methodology for preventing
ARP spoofing attack. In the proposed model there is
a central server on a network or subnet
which prevents ARP spoofing attack.
One of the most widely observed fraud scenarios is the case of a malicious user detecting the address of a PSTN gateway and accessing that gateway directly. Once the attacker has managed to access the gateway the attacker can start selling telephony minutes through that
gateway.
The ABC SBC establishes a secure border between the VoIP service provider’s core VoIP components–e.g., PSTN gateway, SIP proxy and application servers- and the subscribers. As the border element, the ABC SBC hides the details of the operator’s network from subscribers
and absorbs any attacks and sudden spikes in the subscriber traffic. Further, the mediation features of the ABC SBC shield the operator’s network from malfunctioning user agents and any interoperability issues.
In this paper, an improved secure address resoluti
on protocol is presented where ARP spoofing
attack is prevented. The proposed methodology is a
centralised methodology for preventing
ARP spoofing attack. In the proposed model there is
a central server on a network or subnet
which prevents ARP spoofing attack.
One of the most widely observed fraud scenarios is the case of a malicious user detecting the address of a PSTN gateway and accessing that gateway directly. Once the attacker has managed to access the gateway the attacker can start selling telephony minutes through that
gateway.
The ABC SBC establishes a secure border between the VoIP service provider’s core VoIP components–e.g., PSTN gateway, SIP proxy and application servers- and the subscribers. As the border element, the ABC SBC hides the details of the operator’s network from subscribers
and absorbs any attacks and sudden spikes in the subscriber traffic. Further, the mediation features of the ABC SBC shield the operator’s network from malfunctioning user agents and any interoperability issues.
EFFECTIVE VOICE CALLS ADMISSION FOR AUTHORIZED USER IN INTER VOIP NETWORKIJNSA Journal
IP based voice transmission technology is a flexible, simpler and a cost effective implementation of voice transmission. It provides a real convergence of various networks. This voice transmission technology does not support a quality that is equivalent to digitized voice, which is available in the existing PSTN networks. In addition to this, data network vulnerabilities affect the VOIP service causing a drop in the utilization of voice communication. In this paper, the quality of service for voice calls is ensured with the integration of CAC mechanism with the bandwidth link utilization which makes an estimation of the demanded bandwidth. In terms of security, prevention of ARP cache poisoning attack is achieved by use of the signed MAC address response in local area networks. It makes the network confident that the admitted user is an authorized user and also it verifies that only the authorized users’ information is exchanged over the local area network. Also an approach that makes it difficult for the hacker’s to hack the data exchanged over the quality channel has been proposed.
H.264/AVCis currently the most widely adopted video coding standard due to its high compression capability and flexibility. However, compressed videos are highly vulnerable to channel errors which may result in severe quality degradation of a video. This paper presentsa concealment aware Unequal Error Protection (UEP) scheme for H.264 video compression using Reed Solomon (RS) codes. The proposed UEP technique assigns a code rate to each Macroblock (MB) based on the type of concealment and a Concealment Dependent Index (CDI). Two interleaving techniques, namely Frame Level Interleaving (FLI) and Group Level Interleaving (GLI) have also been employed. Finally, prioritised concealment is applied in cases where error correction is beyond the capability of the RS decoder. Simulation results have demonstrated that the proposed framework provides an average gain of 2.96 dB over a scheme that used Equal Error Protection (EEP).
EFFECTIVE VOICE CALLS ADMISSION FOR AUTHORIZED USER IN INTER VOIP NETWORKIJNSA Journal
IP based voice transmission technology is a flexible, simpler and a cost effective implementation of voice transmission. It provides a real convergence of various networks. This voice transmission technology does not support a quality that is equivalent to digitized voice, which is available in the existing PSTN networks. In addition to this, data network vulnerabilities affect the VOIP service causing a drop in the utilization of voice communication. In this paper, the quality of service for voice calls is ensured with the integration of CAC mechanism with the bandwidth link utilization which makes an estimation of the demanded bandwidth. In terms of security, prevention of ARP cache poisoning attack is achieved by use of the signed MAC address response in local area networks. It makes the network confident that the admitted user is an authorized user and also it verifies that only the authorized users’ information is exchanged over the local area network. Also an approach that makes it difficult for the hacker’s to hack the data exchanged over the quality channel has been proposed.
H.264/AVCis currently the most widely adopted video coding standard due to its high compression capability and flexibility. However, compressed videos are highly vulnerable to channel errors which may result in severe quality degradation of a video. This paper presentsa concealment aware Unequal Error Protection (UEP) scheme for H.264 video compression using Reed Solomon (RS) codes. The proposed UEP technique assigns a code rate to each Macroblock (MB) based on the type of concealment and a Concealment Dependent Index (CDI). Two interleaving techniques, namely Frame Level Interleaving (FLI) and Group Level Interleaving (GLI) have also been employed. Finally, prioritised concealment is applied in cases where error correction is beyond the capability of the RS decoder. Simulation results have demonstrated that the proposed framework provides an average gain of 2.96 dB over a scheme that used Equal Error Protection (EEP).
De-Risk Data Center Projects With Cisco ServicesCisco Canada
This presentation will discuss Cisco Advanced Services, why to use Cisco Advanced Services and where Cisco Advanced Services can add value to your business.
These are the slides used in my tutorial at MICAI 2013 (presented November 25, 2013). The tutorial is on Measuring the Similarity and Relatedness of Concepts, and focuses on methods that rely on information from ontologies, possibly augmented with corpus statistics. This tutorial includes background on the measures, plus information on software that implements different measures, plus reference standard data sets that can be used to evaluate measures.
This study guide is intended to provide those pursuing the CCNA certification with a framework of what concepts need to be studied. This is not a comprehensive document containing all the secrets of the CCNA, nor is it a “braindump” of questions and answers.
I sincerely hope that this document provides some assistance and clarity in your studies.
It was a project to make college network which is developed on Cisco Packet tracer. In that we have to configure server then that ip is to distributed among no of Pcs , Printer , wireless phone With different categories of IP.
Slide Deck Class Session 10 – FRSecure CISSP Mentor ProgramFRSecure
FRSecure has a goal of changing a broken industry. There are many ways to accomplish this endeavor such as setting high assessment standards, using proprietary reporting methods that are easy to understand to hiring expert talent just to name a few. However, one unique approach FRSecure uses to bring about change is our CISSP Mentor Program. By design the program is provided at no cost to anyone with an interest in the information security industry.
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H19-401_V1.0 HCSP-Presales-Campus Network Planning and Design V1.0 Exam Quest...PassquestionExamTrai
With the latest H19-401_V1.0 HCSP-Presales-Campus Network Planning and Design V1.0 Exam Questions from PassQuestion, you will have access to a wealth of valuable information covering all the essential exam topics, giving you the best possible chance of achieving a successful result.
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CCNP Enterprise 300-425 ENWLSD Questions and Answersdouglascarnicelli
Cisco 300-425 ENWLSD exam is a concentration test for Cisco CCNP Enterprise certification. The new cracked Cisco CCNP Enterprise 300-425 ENWLSD questions and answers are helpful in your preparation.
2V0-41.23 Certification VMware NSX 4.x Professional Exam Your Gateway to Netw...Aliza Oscar
In the ever-evolving world of IT, networking is at the heart of it all. And when it comes to networking excellence, VMware NSX 4.x is a name that stands out. But before we dive into the details, make sure to hit that subscribe button and ring the notification bell so you never miss out on our informative content.
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Prepare effectively for the PCNSE (Palo Alto Networks Certified Network Security Engineer) exam with Pass4sureClub comprehensive PCNSE Question Answers . Our meticulously curated content covers all the essential topics, including firewall technologies, threat prevention strategies, VPN configurations, and network troubleshooting methodologies. With our up-to-date and expertly crafted study material, you'll gain a deep understanding of Palo Alto Networks' network security solutions, empowering you to excel in the exam and succeed in real-world scenarios. Whether you're a seasoned professional seeking certification validation or a newcomer aiming to kickstart your cybersecurity career, Pass4sureClub provides the tools and resources you need to achieve your goals and advance in the field of network security.
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Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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Biological screening of herbal drugs: Introduction and Need for
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3. Question: 1
You want to gather as much detail as possible during a network audit, to include data time stamping across a large number of
interfaces, customized according to interface, with a minimal impact on the network devices themselves. Which tool would
you use to meet these requirements?
A.RMON
B.SNMPv3
C.NetFlow
D.Cisco Discovery Protocol
Answer: C
4. Explanation:
NetFlow provides extremely granular and accurate traffic measurements and a high-level collection of aggregated traffic. The
output of netflow information is displayed via the show ip cache flow command on routers. The Table shows a description of
the fields for NetFlow output. Table. Netflow Output escription
5. Question: 2
You want to gather as much detail as possible during a network audit with a minimal impact on the network devices
themselves. Which tool would you use to include data time stamping across a large number of interfaces while being
customized according to each interface?
A.RMON
B. SNMPv3
C. NetFlow
D. Cisco Discovery Protocol
Answer: C
6. Question: 3
In which phase of PPDIOO are the network requirements identified?
A. Design
B. Plan
C. Prepare
D. Implement
E. Operate
F. Optimize
Answer: B
7. Explanation:
Plan Phase The Plan phase identifies the network requirements based on goals, facilities, and user needs. This phase
characterizes sites and assesses the network, performs a gap analysis against best-practice architectures, and looks at the
operational environment. A project plan is developed to manage the tasks, responsible parties, milestones, and resources to do
the design and implementation. The project plan aligns with the scope, cost, and resource parameters established with the
original business requirements. This project plan is followed (and updated) during all phases of the cycle.
8. Question: 4
Which is part of the Prepare phase of PPDIOO?
A. Obtain site contact information
B. Perform network audit
C. Identify customer requirements
D. Perform gap analysis
Answer: C
9. Explanation:
Prepare Phase The Prepare phase establishes organization and business requirements, develops a network strategy, and
proposes a high-level conceptual architecture to support the strategy. Technologies that support the architecture are
identified. This phase creates a business case to establish a financial justification for a network strategy.
10. Question: 5
When designing the identity and access control portions for the enterprise campus network, which of these solutions would
be the most appropriate solution to consider?
A. 802.1X
B. ACLs in the core layer
C. Cisco Security MARS
D. NetFlow
Answer: A
12. Question: 6
Which is the purpose of the Cisco NAC Profiler?
A. Automates discovery and inventory of all LAN attached devices
B. Generates a profile based on username and group
C. Learns and creates a database of virus definitions based on LAN traffic
D. A database used to map user VPN accounts
Answer: A
Explanation:
Cisco NAC Profiler: Enables network administrators to keep a real-time, contextual inventory of all devices in a network. It
greatly facilitates the deployment and management of Cisco Network Admission Control (NAC) systems by discovering and
tracking the location and type of all LAN-attached endpoints, including those that are not capable of authenticating. It also
uses the information about the device to determine the correct policies for NAC to apply.
13. Question: 7
Cisco Identity-Based Networking Services relies heavily on the 802.1X protocol. Which other authentication solution is
used hand-in-hand with 802.1X to authenticate users for network access?
A. RADIUS
B. LEAP
C. IPsec
D. TACACS
E. ISAKMP
Answer: A
14. Explanation:
Cisco Identity-Based Network Services The Cisco Identity-Based Network Services solution is a way to authenticate host
access based on policy for admission to the network. IBNS supports identity authentication, dynamic provisioning of
VLANs on a per-user basis, guest VLANs, and 802.1X with port security. The 802.1 X protocol is a standards-based protocol
for authenticating network clients by permitting or denying access to the network. The 802.1 X protocol operates
between the end-user client seeking access and an Ethernet switch or wireless access point (AP) providing the connection
to the network. In 802.1 X terminology, clients are called supplicants, and switches and APs are called authenticates. A
back-end RADIUS server such as a Cisco Access Control Server (ACS) provides the user account database used to apply
authentication and authorization. With an IBNS solution, the host uses 802.IX and Extensible Authentication Protocol over
LANs (EAPoL) to send the credentials and initiate a session to the network. After the host and switch establish LAN
connectivity, username and password credentials are requested. The client host then sends the credentials to the switch,
which forwards them to the RADIUS ACS. The RADIUS ACS performs a lookup on the username and password to
determine the credentials' validity. If the username and password are correct, an accept message is sent to the switch or
AP to allow access to the client host. If the username and password are incorrect, the server sends a message to the
switch or AP to block the host port. Figure 13-4 illustrates the communication flow of two hosts using 802.1X and KAPoL
with the switch, AP, and back-end RADIUS server.
15. Question: 8
Which protocol is used for voice bearer traffic?
A. MGCP
B. RTP
C. SCCP
D. CDP
E. ICMP
Answer: B
Explanation:
VoIP Control and Transport Protocols A number of different protocols are used in a VoIP environment for call control, device
provisioning, and addressing. Figure 14-15 shows those protocols focused on VoIP control and transport.
16. Question: 9
Which protocol is used to reserve bandwidth for the transport of a particular application data flow across the network?
A. cRTP
B. IEEE 802.1P
C. RSVP
D. LFI
E. Auto QOS
Answer: C
Explanation:
RSVP Signaling protocol that enables end stations or applications to obtain guaranteed bandwidth and low delays for their
data flows.
17. Question: 10
Which two features are supported by single wireless controller deployments? (Choose two.)
A. Automatic detection and configuration of LWAPPs
B. LWAPP support across multiple floors and buildings
C. automatic detection and configuration of RF parameters
D. Layer 2 and Layer 3 roaming E. controller redundancy F. mobility groups
Answer: A, B
18. Question: 11
Which four services does the architecture for Media Services contain? (Choose four.)
A. Access services
B. transport services
C. storage services
D. forwarding services
E. session control services
F. security services
G. filtering services
H. remote access services
Answer: A, B, C, E
19. Explanation:
An architecture framework for media services supports different models of video models. As shown in Figure 14-13, the
network provides service to video media in the Media Services Framework. Those services are access services, transport
services, bridging services, storage servers, and session control services, which arc provided to endpoints.
■ Access services provide identity of end devices, mobility, and location services.
■ Transport services provide QoS for reliable packet delivery.
■ Bridging services provide transcoding, conferencing, and recording services of media streams.
■ Storage services provide capture and storage of media streams and content management and distribution.
■ Session control services provide session signaling and control and gateway services.
20.
21. Question: 12
Refer to the exhibit.
Which layer is the distribution layer?
A. Layer A
B. Layer B
C. Layer C
D. Layers A and B form a consolidated core and distribution layer
Answer: B
22. Question: 13
Which IPv6 feature enables routing to distribute connection requests to the nearest content server?
A. Link-local
B. Site-local
C. Anycast
D. Multicast
E. Global aggregately
Answer: C
Explanation:
Any cast is a network addressing and routing methodology in which data grams from a single sender are routed to the
topologically nearest node in a group of potential receivers all identified by the same destination address.