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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
What are guidelines for securing a switch?
Protect against loops using Spanning Tree protocols
Select a single secure communication method such as Secure Shell or SSH
Regulary install firmware updates on switches
Logically separate networks using VLANs
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.
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.
Is Poe access point or powered access point recommended?
I have had very good luck with both. It depends on your need and configuration.
In the server rooms we had all powered equipment, in several outlying locations (within the building) we added POE hubs or switches simply to avoid clutter or extra cabling.
How would a physical connection between 2 switches via a hub be characterized by RSTP?
Link-type shared
The e-mail program will respond with a message indicating it could not connect to the mail server.
Some people will dispute this by saying that you cannot change the channel on a wireless NIC. A normal user would not make that change, but it can be done and I actually do it frequently. I do wireless security audits and frequently lock my NIC to only scan a certain channel that I am interested in.
You have to choose which router is the main one. After that you can configure second router to create "bridge" with the main one.
It's better if you have both routers of the same manufacture and model. Many routers even so can be configured for "bridge" usually do not work with different models and manufactures.
What protocols are used to pick up mail?
E-mail account type is consist of two protocols. First, the POP3 Post Office Protocol 3 or POP3 and the IMAP With an Internet Message Access Protocol or IMAP.
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.
Interconnect is a word that means to be connected: The wires were interconnect.
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
Why would you want to disable CDP on an interface or globally?
You don't want to allow adjacent devices to gain information about this router for security reasons.
SolutionYou can disable CDP on a single interface by using the command no cdp enable interface configuration command: Router1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router1(config)#cdp runRouter1(config)#interface FastEthernet0/0 Router1(config-if)#no cdp enableRouter1(config-if)#end Router1#
And you can disable all CDP on the router with the global configuration command, no cdp run: Router1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router1(config)#no cdp runRouter1(config)#end Router1#
How well do you get on with your boss?
A good relationship with your employer is important and will often help make your experience in the workplace much more pleasant and tolerable.
What are the flow of communication?
Communication is the medium of communicate. In modern age, there are so many flows of communications. They are computer, telephone, radio, newspaper, etc
The state of directly connected links
