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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
firewall
What resides at the physical layer of the OSI layer?
Interfaces used on the system to connect to Network devices reside on Physical layer.
Which topology is the most commonly used client -server network topology?
star good luck on chapter 12!
A router running a classless routing protocol (Such as OSPF) will send the subnet mask in its route updates to its neighboring routers.
Is Fiber-optic cable easier to install and modify than a twisted pair or coaxial?
No. And if it breaks it requires special equipment to Polish and splice the ends.
proxy or firewall
Is it possible to connect more then 2 pc's without using switch?
no bt u can connect it very easily using 4 port switch
1) ACL (Access Control List) policy instructs the router to drop it. This is a "rule" configured intentionally by the router's administrator to control traffic.
2) The packed fails an RPF (Reverse Path Forwarding) check. This is when a packet arrives with a source address that doesn't make sense, and it appears like an attempt at malicious activity.
3) The input queue is full. This is basically a symptom of the router being overloaded.
4) The packet fails a basic sanity check, such as TTL (Time to Live) expiring, or failing a CRC (Cyclic Redundancy Check), although that is actually a Layer 2 function, not IP.
5) The packet has a requirement that the router is unable to accomodate. Examples of this would be a non-UDP encapsulated IPSec packet whos destination address requires translation, or a multicast packet arriving at a router that is not configured for multicast routing.
a passive hub does not regenerate the signal received only let it pass
What hardware does a bus topology need?
A bus topology needs a trunk cable, which is a high speed central cable to which all the nodes can be connected. If the trunk cable breaks down, however, the whole network comes to a halt.
What are the Functions of each ip address class?
In classfull addressing schemes each address class limited the total number of clients per network. Other than that, there are no particular functions for each address class.
Why do link-state protocols converge faster than most distance vector protocols?
Distance vector protocols compute their routing tables before sending routing updates; link-state protocols do not.
Computer with internet access.
Network cables connected to each machine.
Program installed on each computer.
The gateway address is your router's inside local address. To find what your gateway and IP are you can open a Command Prompt (CMD) window and type "ipconfig/all" without quotes. Make sure you run the Command Prompt as an administrator when you open it.
Is the ip address 242.1.2.254 a valid address for a host on a tcpip network?
Technically yes, but it's a Class D and most places only use Class A, B or C.
What is the default bandwidth allocation for the network-control forwarding class?
The default Class of Service (CoS) settings have 95% of the bandwidth set for queue number 0 (best effort), and 5% for queue number 7 (network-control).
