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Local Area Network
Questions concerning the setting up, troubleshooting and operation of wired LANs used by businesses and other organizations
4,003 Questions
How does a host know a data packet was not received?
When the TCP/IP protocol is used they use what is called a 3 way handshake.
If UDP protocol is used it is connectionless which means there is no guarantee of packet arrival.
For more information, see the Related Link.
What is a protocol does not include subnet mask information in its messages?
Classful Routing Protocol
What does WPS means which is printed on ptcl router model KW5815?
WPS or WiFi Protected Setup is used to connect to your wireless AP. It has 2 methods one is WPS button and second is WPS pin.
1. WPS Button (usage):
When you try to connect an "Wireless Access point" a dialouge box comes up asks for the Password that should be entered in order to connect to the "wireless AP". At this stage you can either enter the password or you can use WPS button. while the password dialouge box is open. in windows 7 "Connect to a Network" dialouge box says "You can also connect by pushing the button on the router". if you don't want to connect with AP by entering password you can push the "WPS Button" on your "PTCL" device. and there you go, you are connected to your WiFi.. :)
2. WPS PIN (usage):
NOTE: make sure your PIN is active in the settings of your PTCL device!
it could be a firewall blocking icmp outbound traffic from said machine, if the machine can still access network functions such as the internet and lan printers its tcpip stack is still intact it could be a firewall blocking icmp outbound traffic from said machine, if the machine can still access network functions such as the internet and lan printers its tcpip stack is still intact.
What breaks up collision domains and broadcast domains?
On shared-media networks (i.e. hubs or pure ethernets), routers break up broadcast domains and bridges break up collision domains. Routers also break up collision domains.
On switched networks, routers break up broadcast domains, and every switch port is its own separate collision domain.
What is the difference between thin client and thick client?
Thick Client : Processing is done on client side. eg: Applets.
Thin client : Processing is done on server side.
eg: Yahoo, hotmail, etc.
Name a few configuration options related to mailbox stores?
Managing mailbox setting
Changing e-mail addresse
Configuring mailbox permissions
Deleting mailboxe
Moving mailboxes
Reconnecting a disconnected mailbox in Active Directory
Hiding a mailbox from the Global Address List (GAL)
Specifying storage limits.
Specifying delivery restrictions on a mailbox.
Forwarding mailboxes to other e-mail addresses.
Configuring and managing contacts.
Change the status of Exchange features for mail-enabled objects
What Switching breaks data into packets before they are transported?
Packet switching breaks the original data into smaller segments per packet before transmission. This is done in the layer 4 transport layer of the OSI model.
What do the numbers stand for in an ip address?
(I am assuming the question refers to IPv4 addressing. For IPv6 addressing the idea is the same, but the specifics of implementation differ.)
An IP address is a numerical representation of a unique computer in the relative "address space". What that means is - in the particular network using this address space, that specific address uniquely identifies a specific computer (as long as it has that address), or alternatively - a network-capable device other than a personal computer (a router or a network printer are two good examples).
Each time someone connects to a web page, for example, they are connecting to another computer somewhere elsewhere in the world - and that computer must have its IP address too.
An "address space" is a specific range of addresses "routed to" (and assigned) in a network segment (a distinct group of computers). Simply put, an "address space" is a bunch of addresses that can be assigned to computers within a network, and which would (when assigned) enable these computers to communicate with each other directly without the need to use special means (routing) to reach each other. The Internet - often called a "network of networks" - assigns these addresses (in this case known as the "global pool") to subnets, so that they can "see" each other, but that is a yet another matter.
The four numbers separated by dots in an IPv4 address are called "octets", because each of the numbers can be represented by 8 bits. The lowest number recorded so is 0 (binary 00000000), the highest - 255 (binary 11111111). These four numbers together uniquely identify one specific "destination" (explanation of routing and/or address masking - or NAT - are beyond the scope of this answer).
It may be easier to understand this by an analogy: when you write down someone's address, it consists of a name, a street name and number, a city, and a country. So someone's address could easily be written as such:
Country . City . Street No . Name
The networks are, of course, not divided into such "zones" as Cities or Streets. Something like "USA . New York" is valid, but in this method "New York . USA" is not, since there is no country named "New York". Computer IP addresses are not "zoned" this way, so "128.255" is as valid as "255.128", just points somewhere else.
The values (0-255) also define how many computers are "addressable" in such way that they can "see" each other and communicate directly. Think "how many countries" by "how many cities" by "how many streets" and so on. So, if the first computer that can be addresses is 1.0.0.1, and the last 255.255.255.254 (taking into account the requirements of the protocol), there are possibly 254 * 255 * 255 * 255 - 1 addresses available in any given pool. That is some 4 211 669 249 unique addresses!
Of course, the global address pool is divided into sub-networks and "ranges" which are then assigned to countries to further assign (mostly sell) to their people. That makes the global pool somewhat "chopped up", and as a result, not all addresses end up being available. IPv6 is designed specifically with the availability problem in mind, extending the address' length so that potentially "every ant on the planet could have an IPv6 address".
What are causes of slow response time in intranet?
An intranet is a special computer network within an organization. If the intranet has a slow response time, it may be a result of peaking. If not, there must be some other problems related with cabling, hardware or software.
What is Wake-on-Lan known for?
Wake-on-Lan is a type of computer function that involves whether or not the console can be turned on by specific messages. It is a standard built into computer networks due to its rapid growth in popular use.
What two methods can be used to remove MAC address table entries from a switch?
Power cycle the switch to clear all dynamically learned addresses, and the clear mac address table command will remove statically and dynamically configured table entires
Mac & llc
What is host for this 255.255.255.192?
You have given a subnet mask; it has nothing to do with hosts. You would need to supply the network number.
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Network monitor.
you need internet connection cables
Color coding for straight cable?
To know colour coding of straight cable we need to know some basic facts like where it is use and from where we can generate it.The answeres are crossover or we say straight cable is used for connecting different devices like pc- hub or pc-hub etc,and we can generate it from the basic colour coding of 568a standard.But the question is how?as 568a standard is a standard for twisted pair but its comes under the subcategory of unshield twisted pair cable.so,lets come to the main ans,so here we go--
568a colour coding is
green=gr,white=w,orange=or,blue=bl and brown=br(short form)
1.gr/w
2.gr
3.or/w
4.bl
5.bl/w
6.or
7.br/w
8.br
As we can see above the colour coding of 568a cables{straight(use to connect dissimilar devices like pc-hub)} the basic of colour coding.we can generate the colour coding for cross cable from it-
Straight
As it is
Straight
1.gr/w
1.gr/w
2.gr
2.gr
3.gr/w
3.gr/w
4.bl
4.bl
5.bl/w
5.bl/w
6.gr
6.gr
7.br/w
7.br/w
8.br
8.br
In token bus network what happens when the station accepts atoken and crashes immediately?
How does Token Bus (IEEE 802.4) enforce discipline on a logical ring topology?
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TCP/IP is a "protocol suite", i.e., a group of related protocols, protocols that work together. It is named after two of the most important protocols, TCP and IP - but the TCP/IP stack is made up of many more protocols, it is not just those two.
TCP/IP is a "protocol suite", i.e., a group of related protocols, protocols that work together. It is named after two of the most important protocols, TCP and IP - but the TCP/IP stack is made up of many more protocols, it is not just those two.
TCP/IP is a "protocol suite", i.e., a group of related protocols, protocols that work together. It is named after two of the most important protocols, TCP and IP - but the TCP/IP stack is made up of many more protocols, it is not just those two.
TCP/IP is a "protocol suite", i.e., a group of related protocols, protocols that work together. It is named after two of the most important protocols, TCP and IP - but the TCP/IP stack is made up of many more protocols, it is not just those two.
An ip network can use both tcp and udp for data transmission what is the different with the both?
TCP (Transmission Control Protocol) is the most commonly used protocol on the Internet. The reason for this is because TCP offers error correction. When the TCP protocol is used there is a "guaranteed delivery." This is due largely in part to a method called "flow control." Flow control determines when data needs to be re-sent, and stops the flow of data until previous packets are successfully transferred. This works because if a packet of data is sent, a collision may occur. When this happens, the client re-requests the packet from the server until the whole packet is complete and is identical to its original.
UDP (User Datagram Protocol) is anther commonly used protocol on the Internet. However, UDP is never used to send important data such as webpages, database information, etc; UDP is commonly used for streaming audio and video. Streaming media such as Windows Media audio files (.WMA) , Real Player (.RM), and others use UDP because it offers speed! The reason UDP is faster than TCP is because there is no form of flow control or error correction. The data sent over the Internet is affected by collisions, and errors will be present. Remember that UDP is only concerned with speed. This is the main reason why streaming media is not high quality.
Source: Skullbox
routers basicaly has 2 ports, one is uplink and 1 is downlink, is any1 is not assigned , anyone can be assisgned for connecting to the switch
