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Computer Network Security
Network security is any form of computer security dealing with multiple computers linked through a network. Questions about everything from firewalls to viruses to denial-of-service attacks belong here.
1,030 Questions
a third party firewall is any firewall that did not come with the computers operating system
Can people buy network security software?
Yes, network security software is available for purchase at various office supply stores or local technology superstores. There are also full downloadable versions of most software available for purchase as well as instant download online at various network security software companies such as Norton, Microsoft, Nortel, or Zone Alarm.
What security ensures that only authorized individuals are able to create or change information?
Integrity
Network Security Consultants offer up what type of protection?
Network Security Consultants protect a network from outside forces such as malicious spyware. They usually work for companies to protect their assets against hackers through firewalls.
Advantages and disadvantages of virus protection in networking security?
No....Viruses can not be good in anyway....SORRY
A application proxy disassembles each packet as it enters the network. The broken down packet is then examined too see if it meets the criteria set, then the proxy rewrites it, and sends it on its way. The proxy usually will terminate the connection from the source and initiates a new connection from the proxy back to the destination. This can offer greater protection to the machines hosting the applications because there is no direct interaction between the source and the destination.
Plausibly the most commonly used firewall is the router. The router examines the source and destination addresses, as well as the ports. The router uses this data too determine if the packet meets the designated rules to pass through to its intended destination. Keep in mind, there are several different types of routers (aka gateways). Some are simple, only filtering packets by port. Some others filter by IP address and port. The more advanced routers will perform various checks on the credibility of an IP address, thus providing additional protection.
What is the method a router uses to rank the reliability of routing information?
A Admin can set the Administrative Distance (AD) on a static route to tell the router how reliable the route is. Dynamic routing protocols use metrics to determine route reliability.
NDS server is used to serve the CDT server, which is used for call detailed trace.
Is availability ensured by IA?
IA seeks to ensure availability. The three broad areas that IA seeks to ensure and protect are Confidentiality, Integrity (of the information - protecting it from unauthorized changes or corruption), and Availability.
How is infrastructure protection related to information security?
Both share the same overall goal. to ensure that data is available when where and how it is needed. page 19
What is the difference between misuse intrusion detection and anomaly intrusion detection?
Misuse IDS trying to detect abnormal behavior by analyzing the given traffic and matching several rules. based on Analysis and comparison with the Rules the system can detect any attacks, such as matching signature pattern. this method is still not sufficient.
Anomaly IDS trying to detect anomalies when any deviation occur from the normal system. That means, using Data mining techniques such as Machine Learning, this techniques will study the system and build a profile to it, and then using certain classification algorithms it will monitor the traffic, any traffic that deviate from the original profile will be an anomaly. there are several methods applied in Anomaly IDS such as Clustering, Neural Network, Fuzzy logic and etc....
Summary: Misuse is limited but Anomaly is adaptive and can detect even early attacks.
I hope that help answering your question.
Regards
Where is the security key on a comcast modem located?
The security key on a Comcast Modem is located next to the serial number of the unit. Sometimes the serial number is the number used as a security code if it is not printed on the device.
Check to see if your router has a 'reset' button. This button usually resets the router to the default factory configuration. Of course, it is best to have the user's manual when doing this so you know how to reconfigure the router.
What drawbacks to symmetric and asymmetric encryption are resolved by using a hybrid method?
You can actually use both; the problem with symmetric encryption is how to get the shared key to someone else in a secure manner.
The problem with asymmetric encryption is that it is too slow to be used to general communications.
So, using both can solve the problems of drawbacks to just using one or the other.
What types of information are included in the show cdp neighbor command?
Device identifiers, A port identifier and Platform information.
Which type of network sends data only to the device specified as the destination?
Though this question is pretty ambiguous, you probably mean NBMA networks (Non-Broadcast Multiple Access).
Is information stored on a modem?
Answer: Broad band (High speed) cable and DSL modems only store non-personal configuration related data that is preset by the manufacturer and/or your ISP (Internet service provider). Data that you transmit over the Internet via your modem is encrypted and may be buffered; albeit, non-decipherable. If you're worried about any data being left on your modem, simply disconnect the modem's power on an occasional basis, which in addition, also resets the modem resulting in faster Internet speeds.
What is the punishment for launching a dos attack?
The punishment varies by country, amount of damage done, etc. It usually involves some jail time and fines...
List of the companies using bus topology?
No one knows, since this is not published information. Companies are not likely to publish anything about their network topology, since it may be considered a security risk.
The abbreviation D.O.S. or DoS, means "Denial of Service" which is a programming attack on an internet connection designed to interrupt or interfere with the activity of the company or website. One version simply sends vast numbers of connection requests that overload the capacity of a web server.
*The programming acronym DOS means Disk Operating System, a computer operating system that was used for PCs before the advent of Windows.
* In textspeak, DOS can mean "dozing off soon" or "dad over shoulder" (watch what you say).
What data is encrypted using a single key that only the sender and the recriver know?
The data itself does not matter in this scenario. The type of encryption used is symmetric encryption, meaning that the sender and receiver have the same key to lock and unlock the data.
How do you know the both sender and recevier the encryption key?
When data is received by the receiver , receiver send an acknowledgement. After receiving the acknowledgement from receiver , senders knows the message has been successfully sent.
What are the different sources of system vulnerability or abuse?
their all type of abuse their physical abuse and their vebal abuse and emotional abuseand namingcalling abuse their all kind of abuse in the word abuse
