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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
What is fullform of RSA token?
There are number of encryption techniques one such technique is RSA. RSA stands for rivest shamir algorithm.
What layer protocol does RIP use?
RIP is a IGP protocol that allows routers to advertise what they know about their routes to other routers. Since routers operate at the network layer (3), so does RIP.
How do you use the single user bradband connection to multi users?
Connect the broadband connection to a router, and connect the router ports to the individual systems. If necessary, extend the number of ports on the router by attaching a switch to one of the router ports and attaching multiple clients to the switch.
UTP cable would not usually be used in a bus topology. It is very common (even at that low speed) for a star.
Attachment Unit Interface (AUI) is an interface that was used as Medium Independent Interface to connect to different connectors such as RJ45 & Coaxial connectors.
Why are the source and destination port numbers at the beginning of the TCP header?
That is the way the standard designed the header. They could be placed anywhere as long as everyone understood where in the packet header it was placed.
When a break in the cable of a token ring network occurs what will happen to the network?
The network connection breaks because the one path being used is broken.
What is deterministic access method?
When using the controlled access method, network devices take turns, in sequence, to
access the medium.
How do you setup a RAID network?
I'm not really sure what you really mean. You can set up a RAID array, but not a network that only consists of RAID. However, you can set a cluster NAS server which can utilize RAID arrays.
However, RAID is never a substitute for backups, as with RAID arrays each storage device you add creates an additional point of failure - and in cases like RAID level 0 (striping), you will lose everything if even one drive fails.
How many bits do you need to borrow in a class C subnet masks to accommodate 18 networks?
Borrow 5 bits (for 30 subnets total).
The number of possible IP address decreases as one steps down from Class A to Class C IP addresses because the availability of usable hosts. There is a decrease in the number of usable hosts from Class A to Class C IP addresses.
How would a physical connection between 2 switches via a hub be characterized by RSTP?
Link-type shared
How do you see the configurations of all the network cards using the ifconfig?
Start->Run->cmd->ipconfig.
You will see information about your network adapters.
What class of network is reserved for special purposes?
A class D network is reserved for multi-casting.
The class E series of network addresses are reserved for experimental purposes. 240 - 255 are reserved for class E addresses.
How many bits would you borrow to subnet 172.16.100.0 to have at least 500 hosts?
we need to borrow 7 bits to subnet 172.16.100.0 to have at least 500 hosts and the subnet mask will be 255.255.254.0
What is a valid reason for a switch to deny port access to new devices when port security is?
The denied MAC address are statically configured on the port
What is Crossbar Switches and Multistage switch in Space Division Switch?
2.TIME DIVISION
SPACE DIVISION has two parts i:e crossbar and multistage switches.crossbar switch-A crossbar switch connects n inputs to m outputs in a grid,using electronic micro switches(transistors) at each crosspoint.To connect n inputs to m outputs using a crossbar switch requires n*m crosspoints.The major limitation of this design is the no of crosspoints required.for example:To connect 1000 inputs to 1000 outputs requires a switch with 1.000,000 crosspoints.A crossbar switch with this no of crossspoints is impractical.such a switch is also inefficient because statistics show that,in practice,fewer than 25% of the crosspoints are in use at any given time. The rest are idle.multistage switch-The solution to limitation of the crossbar switch is the multistage switch,which combines crossbar switches in several(normally three)stages.In a single crossbar switch,only one row and one coloumn is active for any connection.so we need n*n crosspoints.If we can allow multiple paths inside the switch ,we can decrease the no of crosspoints.Each crosspoints in the middle stage can be accessed by multiple crosspoints in the first or third stage.The multistage switch has one drawback-blocking during periods of heavy traffic.The whole idea of multistage switching is to share the crosspoints in the middle stage crossbars.The state of directly connected links
