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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
Relationship between security cooperation and security assistance?
Security Assistance is the group of programs authorized by the Foreign Assistance Act of 1961, as amended, and the Arms Export Control Act of 1976, as amended, or other related statutes by which the United States provides defense articles, military training, and other defense-related services by grant, loan, credit, or cash sales in furtherance of national policies and objectives.
Security Cooperation is the Department of Defense interactions with foreign defense establishments to build defense relationships that promote specific US security interests, develop allied and friendly military capabilities for self-defense and multinational operations, and provide US forces with peacetime and contingency access to a host nation.
yes
Why can authentication alone not secure a wireless network?
Authentication alone is not secured. That should happen on secure channel otherwise man in middle attack is possible.
this is what is called a packet sniffer you can see what information is going in and out of the network
Switch flooding is an attack that consists of two parts: one part is a denial of service attack, and the other piece (if used) is an attempt to retrieve confidential information from the switch.
In a flooding attack, the switch is flooded with multiple MAC addresses. Normally a MAC address is used to determine which port to switch the frame to, bypassing any clients that should not get the frame.
Since a switch has a limited amount of memory for storing MAC addresses the flooding attack overruns the table and causes a fail-over situation, where the frames are repeated out each port (like a hub) rather than switching to a specific port.
A malicious user with a packet sniffer could possibly be listening for confidential information to be repeated out one of the ports.
How is e2labs for ethical hacking?
E2Labs Top 100 Private companies in Asia (RED-HERRING United States), Asia's 1st Anti Hacking Academy based at Hyderabad. Since 2003 we have been imparting Awareness, Training and Corporate programs to Several Verticals across the Country and international Clients as well.
Have won several Awards and Accolades across the Globe and in India to name a few are Top 100 Companies of Asia-RED HERRING-U.S.A, TIECON Silicon Valley U.S.A, W.I.P.O- United Nations, and several National Awards and State level Awards to our credit. The recent were Educational Excellence Award @ Indo-Global Educational Summit2010 by Union HRD Minister & Best Speaker Award @ Technology Sabha (The Express Group) January 2011.
They have Trained Corporate employees of Google, Microsoft, Yahoo, Genpact, National Police Academy, Deloitte, Mercedes-Benz, Dell, Indian Armed Forces & Defence, Air Liquide, Forensic Science Labs, Intelligence Department, Several Government and Law Enforcement Agencies.
They are offering several Training programs from 3 days to 1 year, and have designed 3 new programs for collaborations 1) Masters in Information Security 2) Bachelor's in Cyber Security 3) Drop-Out Digital License Program they all are designed by reputed and experienced Information Security Czar's, Veterans and Specialists.
As per NASSCOM Survey report India requires 200,000 Information Security Specialist as the supply is just 18,000. We will also provide students with courses that can offer them training and job guarantee after their training completion.
They are coming up with new batches and good discount packages for the students who have attended our awareness programme conducted in their colleges.
Hope, you will provide us an opportunity to introduce us to a jubilant and promising Career. Awaiting your response on the next steps.
Do visit our Academy and R&D Center at Banjara hills, If you have any questions at all about E2labs for any of our Career oriented Information Security Programs, Awareness or technology transfers feel free to contact us.
e2labs has Indias most advanced lab with latest equipment and have world class infrastructure.
all students have RFID tags for entry in to different labs
E2labs have developed a world class Game Zome for all students
Dictionary attack
stateful packet inspection
What type of device is usually found at the center of an extended star topology?
both hubs and switch can act as a center of a star topology
The sales channel does not matter - if a phone is not ptcrb certified it can be blocked by an operator. Even "unlocked" phones go through certification process before operators put their logos on them. Most operators source their phones from distributors because they don't want excessive inventory in their stores. They still require PTCRB certification.
What is Daisy Chains in logical topology?
Daisy chaining is a term used to denote that one system is directly connected to the next system without any intervening devices. It is usually reserved for linear bus topologies in a network, but can be applied to other things as well, such as SCSI disk hard drives which can be chained together.
What are fundamental objectives of information security?
If an individual believes that a DoD covered entity (CE) is not complying with HIPAA, he or she may file a complaint with the:
They are called Archives and they are stored in USB Memory Sticks, tape systems,Writable CD's and DVD's.
How does port filtering and access list help provide security?
They prevent specified types of trafic from reaching specified network destination
Why does it matter how your computer is connected to the network?
I don't get your question. What do you mean: "the network"? Are you referring to the Internet?
How does it matter? If you're not connected to the "network" --- and I assume your referring to the your Internet connection --- then, you're not going to be "connected". You can't access the Internet.
To go further --- you asked "why does it matter HOW your computer is connected". To answer that, I assume you're asking about your "platform", as in Windows, Mac, Unix, etc. In that case, it doesn't matter.
All platforms are capable of accessing the 'net.
If you're asking about the methodology of "connecting", such as "dial-up" modems versus DSL or high-speed cable access, then there is a difference.
Not sure about what you're asking. Re-phrase your question so that we can help you.
Where are all those 13 root servers located?
The Public-RootServers are strategically deployed around the globe. You can see a map of their locations at http://public-root.com/root-server-locations.htm
What is trusted operating system in information security?
Trusted Operating System (TOS) generally refers to an operating system that provides sufficient support for multilevel security and evidence of correctness to meet a particular set of government requirements.
The most common set of criteria for trusted operating system design is the Common Criteria combined with the Security Functional Requirements (SFRs) for Labeled Security Protection Profile(LSPP) and Mandatory Access Control(MAC). The Common Criteria is the result of a multi-year effort by the governments of the U.S., Canada, United Kingdom, France, Germany, the Netherlands and other countries to develop a harmonized security criteria for IT products.
Examples of certified trusted operating systems are:
Apple Mac OS X 10.6 (Rated EAL 3+)
HP-UX 11i v3 (Rated EAL 4+)
Some Linux distributions (Rated up to EAL 4+)
Microsoft Windows 7 and Microsoft Server 2008 R2 (Rated EAL 4+)
AIX 5L with PitBull Foundation (Rated EAL 4+)
Trusted Solaris
Trusted UNICOS 8.0 (Rated B1)
XTS-400 (Rated EAL5+)
Where did the Tyco security system originate?
The Tyco security system seems to have originated in Switzerland. It is known to be a very safe, secure, and reliable security system, and many people use it.
How does embedding a public key in a digital certificate protect it from impersonators?
Embedding the public key in a digital certificate protects it from impersonators by associating and binding a user's identity to the public key. A digital certificate is the user's public key that has been "digitally signed" by a trustworthy source trusted to sign it. And, instead of "trustworthy" you could use the word: reputable.
Do most Network and Computer Security Specailist know how to program?
It depends on the exact job description. Let's just say that either a network or security specialist would be more productive if they knew something about programming or scripting.
Also, in order to analyze certain types of attacks you need to know something about software.
How would you describe the purpose of auditing system security settings?
Auditing captures a snapshot of security configurations at a given point in time, which allows an administrator to analyze the configurations and act accordingly.
What is the responsibilty of a security manager?
The information security manager is the process owner for the development and implementation of an organization-wide information security program and ongoing activities to preserve the availability, integrity and confidentiality of information resources in compliance with applicable security policies and standards.
What is information security blueprint?
The goal of an information secuity blueprint is to gather an organization's requirements, provide a visualization of those requirements and initiate the process of interweaving information security as part of the organization's culture. The blueprint explains an organization's needs, desired results, factors that could influence the outcome and a strategy to execute.
