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Computer Networking
Computer networks are collections of computers which are connected together in order to communicate and transfer information. Questions about computer networks, networking protocols, and how to set them up belong here.
18,810 Questions
When might an unattended installation not save any time?
It won't save time when your only installing on one machine.
The number of hosts in a classfull class A network with no subnetting is 16,777,214
How can you change tomcat apache port number?
To change the port number of Apache Tomcat, locate the server.xml file in the conf directory of your Tomcat installation (e.g., TOMCAT_HOME/conf/server.xml). Open the file and find the <Connector> element that specifies the current port (usually 8080). Change the port attribute to your desired number, save the file, and then restart Tomcat for the changes to take effect.
Types of Business Communication
There are two types of business communication in an organization:
- Internal Communication
- External Communication
Communication within an organization is called "Internal Communication".
It includes all communication within an organization. It may be informal or a formal function or department providing communication in various forms to employees.
Effective internal communication is a vital mean of addressing organizational concerns. Good communication may help to increase job satisfaction, safety, productivity, and profits and decrease grievances and turnover.
Under Internal Business Communication types there come;
a) Upward Communication
b) Downward Communication
c) Horizontal/Literal communication
a) Upward Communication
Upward communication is the flow of information from subordinates to superiors, or from employees to management. Without upward communication, management works in a vacuum, not knowing if messages have been received properly, or if other problems exist in the organization.
By definition, communication is a two-way affair. Yet for effective two-way organizational communication to occur, it must begin from the bottom.
Upward Communication is a mean for staff to:
o Exchange information
o Offer ideas
o Express enthusiasm
o Achieve job satisfaction
o Provide feedback
b) Downward Communication
Information flowing from the top of the organizational management hierarchy and telling people in the organization what is important (mission) and what is valued (policies).
Downward communication generally provides enabling information - which allows a subordinate to do something.
e.g.: Instructions on how to do a task.
Downward communication comes after upward communications have been successfully established. This type of communication is needed in an organization to:
o Transmit vital information
o Give instructions
o Encourage 2-way discussion
o Announce decisions
o Seek cooperation
o Provide motivation
o Boost morale
o Increase efficiency
o Obtain feedback
Both Downward & Upward Communications are collectively called "Vertical Communication"
c) Horizontal/Literal communication
Horizontal communication normally involves coordinating information, and allows people with the same or similar rank in an organization to cooperate or collaborate. Communication among employees at the same level is crucial for the accomplishment of work.Horizontal Communication is essential for:
o Solving problems
o Accomplishing tasks
o Improving teamwork
o Building goodwill
o Boosting efficiency
2. External CommunicationCommunication with people outside the company is called "external communication". Supervisors communicate with sources outside the organization, such as vendors and customers.
It leads to better;
o Sales volume
o Public credibility
o Operational efficiency
o Company profits
It should improve
o Overall performancee
o Public goodwill
o Corporate image
Ultimately, it helps to achieve
o Organizational goals
o Customer satisfaction
in short.,There are four main types of communication, these consist of written, verbal, computerised and special methods. (verbal can be spilt into two groups; verbal and non-verbal) Non-verbal communication involves things such as body language, crossing your arms, having your hands in your pockets, crossing your legs, eye contact etc.
What two optioins represent layer 4 addressing?
• identifies the communicating applications
• identifies multiple conversations between the hosts
How a bootstrap sweep circuit works?
A bootstrap sweep circuit basically works by linking together circuitry that can operate on its own without assistance from any outside or external source once it is activated. Much like basic alternating current this circuit can keep functioning all alone when properly linked up.
Before analysis all the captured data needs to be organized in a particular format or pattern for the classification purpose this whole process of organizing data is known as preprocessing. In this process data that is collected from the IDS or IPS sensors needs to be put into some canonical format or a structured database format based on the preprocessing. Once the data is formatted it is further broken down into classifications, which totally depends on the analysis scheme used. Once the data is classified, it is concatenated and used along with predefined detection templates in which the variables are replaced with real-time data. Some examples are: * Detection of unexpected privilege escalation
* Detection of the modification of system log files
* ACKDOOR Matrix 2.0 client connect
* DDos stream handler to client
What is command line interface function table?
The command line interface (CLI) is more basic. It has no icons or pictures and often is so simple that even a mouse will not work is relies on the keyboard. CLI a user interface in which we have to type commands instead of choosing them from a menu or selecting icon. CLI we have to type words in command explain mem, cd net* and time this is code for CLI to find information. The command line interface (CLI) is more basic. It has no icons or pictures and often is so simple that even a mouse will not work is relies on the keyboard. CLI a user interface in which we have to type commands instead of choosing them from a menu or selecting icon. CLI we have to type words in command explain mem, cd net* and time this is code for CLI to find information.
IrComm is a Infrared networking term through which a user accesses the Internet by connecting his laptop computer to his mobile device. When a person uses Operating system like Windows XP, which has built-in Infrared Data Association (IrDA) support, he can use a mobile device that is enabled for infrared networking (IrComm) to establish an infrared connection and to connect to and browse the Internet on his laptop computer.
What is the function of asymmetric switching?
An asymmetric switch provides switched connections between ports of different bandwidths.
Asymmetric switching is optimized for client-server traffic where multiple clients simultaneously communicate with a server, requiring more bandwidth dedicated to the server port to prevent a bottleneck at that port.
so it is use to prevent bottlenecks on the port a server is connected.
I am pretty sure that refers to the standard TCP, as opposed to some newer improvements, which are not yet commonly used.
Convert 11000100 from binary to decimal?
in decimal = 196
The rightmost digit represents how many 1s (in this example 0)
The next digit left represents how many 2s (in this example 0)
The next digit left represents how many 4s (in this example 1)
The next digit left represents how many 8s (in this example 0)
The next digit left represents how many 16s (in this example 0)
The next digit left represents how many 32s (in this example 0)
The next digit left represents how many 64s (in this example 1)
The next digit left represents how many 128s (in this example 1)
so the answer is calculated by: 4 + 64 + 128 = 196
What is the difference batween privacy and confidentiality?
Confidentiality is ensuring the privacy of others and only authorized people have access ti o it
Show how to do ipconfig step by step?
Well - what is it you really want to do with ipconfig?
Are you wanting to refresh your ip address or just display it?
If you want to display your IP address you can do it a couple of different ways...
Way 1. Click on Start -> Run -> type in "cmd" without the quotes in the box and press Enter.
This will open a box. then type "ipconfig" (again without the quotes) and press enter.
This will display your ip configuration.
OR another way to see it is to click on Start-> Settings -> Network Connections
then click on your network connection name (local area connection is the most common)
Only click it one time and then on the left hand side click on View Status Of This Connection.
Then click on the Support tab.
This will display your Ip Address. If you need to repair it, then click the repair button.
What is EIA-449 in data communication?
it is a combination of 2 connectors, one with 37 pins and other with 9 pins, to form combination of 46 pins.
EIA-449 defines 2 categories of pins for exchanging data, control and timing information.
category 1 include those pins whose function are compatible with those of EIA-392. some of the functions are receive data, send data, RTS, send timing terminal ready, receive ready.
category 2 include those pins whose equivalent is not present in EIA- 232. some are terminal service, receive common and so on
Advantages of a stateless protocol for the WWW?
The stateless design simplifies the server design because there is no need to dynamically allocate storage to deal with conversations in progress. If a client dies in mid-transaction, no part of the system needs to be responsible for cleaning the present state of the server.
A disadvantage of statelessness is that it may be necessary to include additional information in every request, and this extra information will need to be interpreted by the server.
