Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Application Gateways / firewallThe application level firewall is installed on a dedicated computer; also called as a proxy server. These servers can store the recently accessed pages in their cache and called as cache servers. As proxy server is placed in unsecured area of the network (for example DMZ), it is exposed to higher levels of risk from unreliable networks. Additional filtering routers can be implemented behind proxy server, further protecting internal systems. The disadvantage is they are characteristically restricted to a single application, as they work at application layer. Figure given below illustrates the different types of Firewalls which is compared to OSI model
Circuit GatewaysThe circuit gateway firewall operates at transport layer. Filtering firewalls, do not normally look at data traffic flowing between two networks, but it prevent direct connections between one network and the other. This is can be accomplished by creating tunnels connecting specific processes or systems on each side of firewall, and allows authorized traffic in the tunnels. MAC Layer FirewallsMAC layer firewalls which is designed to operate at media access control layer of OSI network model. This gives the ability to consider specific host computer’s identity in the filtering decisions of it. The MAC addresses of specific host computers are linked to access control list (ACL) entries that identify specific types of packets which can be sent to each host; all other traffic is blocked. Hybrid FirewallsHybrid Firewalls combine elements of other types of firewalls; that is, elements of packet filtering and proxy services, or of packet filtering and circuit gateways. On the other hand, it may consist of 2 separate firewall devices; each is a separate firewall system, but is connected to work in tandem. Without replacing the existing firewalls completely, an organization can make a security improvement, from this approach.
Question: a) Explain what you understand by the term brute force attack, giving an example of such an attack b) Briefly outline the concept of Caesar cipher and identify a
Advantages and Disadvantage of Packet Filtering firewall Advantages One screening router can help protect entire network One key advantage of packet filter
Ask question #MinimAn NMS is connected to a remote network by a 64 Kb/s link. The network elements in the remote network generate 50 faults/second. Of these, 5% are critical and th
Question: a) What do you meant by Privacy? b) Name the four privacy violations. c) Often, aggregate information and anonymized information can be combined to identif
QUESTION (a) Discuss why it is considered more secure to use the SET (Secure Electronic Transaction) for e-commerce instead of using SSL (b) Describe how the dual signature
Problem a) Consider a 1000 Mbps Ethernet with a single Store-N-Forward switch mid-way in the path between two nodes A and B. Assume that there are no other nodes on the network
Using the selected approach, you should then conduct an audit or review of the information security issues associated with the use of computing facility and report on the findings.
FRAGMENTATION Fragmentation information is kept in different extension header. Every fragment has base header and fragmentation header. Whole datagram including original hea
Ask You have been asked by a new client to assist in setting up a new computer for her coffee shop. She has just purchased the newest Apple computer from an online site. Should wou
The best results obtained in the PIIT classes have been when the technique has been used in tutorial groups, rather than have students submit individual reflections on particular c
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd