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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 the subnet mask for 195.70.16.93 in IP prefix format?
what is the subnet mask for this hst IP prefix format ? Host IP Address: 183.91.104.16
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What happens if a MAC address is not stored in CAM on a switch?
Packets will be transmitted out of all switch ports except for the port where the packets were received. It's called flooding.
Can you configure two dhcp server on a same network?
yes, one can configure two dhcp server on a same network. But for doing this, one has to define different scopes in both dhcp server in order to avoid ip address conflict. Eg. one can configure a scope for a lan with network address of 10.0.0.0 as- 10.0.0.10- 10.0.0.100 in one dhcp server.
while other scope would be 10.0.0.101-10.0.0.200 . In this way we can have to dhcp servers on a same network. Which ever dhcp server receives the request for the ip address will provide the ip address.
IN case for servers, one can use mac bindingin both servers so that they obtain same ip address
What are the key requirements for a routing function for a packet-switching network?
1.Correctness: correct route and accurate delivery of packets
2.robustness: adaptive to changes of network topology and varying traffic load
3.Cleverness: ability to detour congestion links and determine the connectivity of the network.
4.Efficiency: rapid finding of the route and minimization of control messages.
Can a computer using dhcp have the same ip address for months?
Yes. The client will renew the same address lease for as long as the DHCP server allows.
What is a cost for setting up a local area network?
Router is abt $25-50
Cables depends on length.
Less than $100 for home network.
Geometric arrangement of a network is called?
The geometric arrangement of a network is called Topology.
Which statements describe the logical token-passing topology?
Computers are allowed to transmit data only when they possess a token.
Electronic tokens are passed sequentially to each other.
How do you telnet into a router?
You need to start CMD or COMMAND depending on OS you have, and in the window type telnet and following by IP address of device you want to connect to.
Are there any switches which are powered by poe?
No, there are no switches that are powerd by POE.
The POE uses one of the 4 pair in CAT cabeling so reasonably priced POE switches are slow 100Mb ps. POE switches use a LOT of power 8watts per port.
Costs are coming down now. £400 for a 24 port GB switch like Netgear GS724P. But does no-one at all do a small say 4-port switch powered by PoE, of which I could use many, to extend the number of points in our school network without rewiring.
Have just found that there are switches that are powered by PoE. Linksys SLM2005 and SLM2008 which are 5 and 8 port managed 10/100/1000 switches.
How do you test a web server using telnet?
1. Open up a command shell
2. Enter telnet
3. When it says it is connected, enter GET HTTP/1.1
4. The prompt should spit out some HTML code, indicating that the web server is responding and sending web pages (if only an error page).
Why switch is always connected in the phase?
Switches are used to isolate the supply voltage from the connected load. This isolation is needed to be able to work on equipment in the de-energized state. Without the switch in the circuit this could not be accomplished.
OrgName: Equifax - Electronic Commerce OrgID: EEC-7
Address: MailStop 42M, PO Box 740006
City: Atlanta
StateProv: GA
PostalCode: 30374
Country: US
NetRange: 216.46.96.0 - 216.46.127.255
CIDR: 216.46.96.0/19
NetName: EFXSECURE-1
NetHandle: NET-216-46-96-0-1
Parent: NET-216-0-0-0-0
NetType: Direct Assignment
NameServer: AUTH0.ATL.EQUIFAX.COM
NameServer: AUTH1.ATL.EQUIFAX.COM
Comment:
RegDate: 1998-08-24
Updated: 1999-11-29
RTechHandle: DG108-ARIN
RTechName: Galas, David F.
RTechPhone: +1-770-740-7343
RTechEmail: david.galas@equifax.com
Does SSL operate at the transport layer or application layer?
I've always considered it to operate at the transport layer as it;s simply an encrypted version of TCP. However, Wikipedia OSI-model lists it as operating at the presentation layer, as it's concerned with the transformation of data between the application and transport layers.
What is the range of network id in class B ip address?
In a Class B range, the first network address would be 128.0.0.0 and the last network address would be 191.255.0.0
Class B addresses are assigned to medium-sized to large-sized networks with up to 65,534 hoasts per network.
when one symstem of one computer is connected to the system of other network it is called intra network
POrts are being blocked: UDP 5060, 5061, or 5070 Also it needs ports TCP 443 open
Connectionless Service
In a connectionless service, the packets are sent from one party to another with no need for connection establishment or connection release. The packets are not numbered; they may be delayed, lost, or arrive out of sequence.
Connection-Oriented Services
In a connection-oriented service, a connection is first established between the sender and the receiver. Data are transferred. At the end, the connection is released.
Connection Establishment Connection establishment involves the following:
Host A sends a packet to announce its wish for connection and includes its initialization information about traffic from A to B.
Host B sends a packet to acknowledge (confirm) the request of A.
Host B sends a packet that includes its initialization information about traffic from B to A.
Host A sends a packet to acknowledge (confirm) the request of B.
This connection establishment implies the steps i.e. bind, connect, listen & accept
Peer editing is having someone in your group (school class, for example) look over your work and make comments and suggestions. This gives you the opportunity to fix things before having to turn in the version that counts.
