Computer Networking

Twofish, Advanced Encryption Standard, Blowfish, Serpent, CAST 5, RC4, TDES, and IDEA are all examples of symmetric encryption methods. In short, any algorithm that uses the same or similar cryptographic keys for encryption and decryption is a symmetric encryption method. Symmetric encryption methods are also divided into two different categories, stream ciphers and block ciphers. These two encryption methods are much like the difference between an interpreter and a compiler in programming. Stream encrypts individual bytes one at a time, while Block encrypts volumes as a whole.

I believe you mean "unauthorized user'. An authenticated user will be able to access data and information on other networked computers on the network if the permissions allow them to. An non-authenticated user has no access, and no permissions to do so.

I understand what you mean, and the answer to that is FALSE.

When it's plugged in but not running (not sleeping, not hibernating), if you are careful enough there are no consequences. But it's highly recommended to unplug your computer while upgrading, cleaning and so on. If you insert the card while your computer is running it can easily fry the motherboard and power supply. All of what was said above is true if we are talking about PCI, -E, -X, and so on. If you are talking about USB, fireware, and so on. Then it's fine.

yes. depending on certain websites, some sre encrypted and some are not. meaning that anyone that has access to the proxy server can see what you do on the internet. Chrome's Incognito mode usually hides most activity

12Во время попытки загрузки компьютера пользователь видит надпись «NTLDR is missing» (NTLDR отсутствует). Что из этого следует?

NTP servers are designed to synchronize the clocks of computers over a network. An NTP server is great in resolving matters when a deadline is involved.

802.2

The two that are most commonly used are called TCP and UDP.

--> Performance degradation

--> security issues

--> host identification

LAN is live active network such as ps3 lan

By default the Printers and Faxes window (or applet) should show in the Start menu. If it is missing and you wish to add it, perform the following steps: # Right-click Startand select Properties from the shortcut menu. # The Taskbar and Start Menu Properties dialog box should open. # On the Start Menu tab, click Customize. # In the Customize Start Menu dialog box, click the Advanced tab. # Check Printers and Faxes. # Click OK to close the Customize Start Menu dialog box. # Finally, click Apply and OK to apply your changes and close the Taskbar and Start Menu Properties dialog box. Another way to open the Printers and Faxes window would be to follow these steps: # From the Start Menu, click Control Panel. # The Control Panel window should open. # Double-click Printers and Faxes.

Wireless standards 802.11b, g, and n use the 2.4Ghz frequency band to operate. Revision B was released in 1999, and operates at 11 megabits per second. Wireless G was released as a standard in 2003 and operates at up to 54 megabits per second, and in some cases can be used at up to 128 megabits per second. Wireless N devices, which operate under the wireless N draft 2 specification (not yet officially released) have faster transfer speeds. the 802.11n draft 2 specification allows speeds up to 600Mbps, but the speeds of devices may vary.

To spoof a mac ID, you will need to know the mac ID you want to spoof. After that, how you implement it depends on your operating system or hardware. http://www.tech-faq.com/change-mac-address.shtml provides in depth details on how to change your mac address for a variety of operating systems.

Only one IP address (either static or DHCP)could be assigned , if you have just one NIC card, but should be able to assign up to the number of NIC cards you have on the system 2,3,4 or 5. but we can aliases in the nic it possible . the max we can have upto 10 ips in one nic

Network architecture is a broad plan that specifies everything necessary for two application programs on different networks on an Internet to be able to work together effectively.

Here are a few branches of computer science:

Computational Mathemeatics

Internet Security

Daa Mining

Data Warehousing

Mobile Computing

Algorithms and their complexities

Programming

Compiler Construction

Mobile Computing

Human-Computer Interface

Operating Systems

Systems Programming

CRM

Geographic Information Systems

Management Information Systems Object-oriented Programming Natural Language Processing Enterprise Resource Planning (ERP) Computer Networks Ad-hoc Networks

depends on the area and the schooling but base is 40k and up

Routers

It prevents routing loops.

It enables routers to communicate via four types of messages.

Their routers are all bunk, usually only work for a quarter of the day. Usually while you are sleeping