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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
For CSLISP, the TCP header is reduced from about 20 characters to about 7. The actual data is not compressed, so you don't save very much in transmission costs per packet.
Does having more than one computer on the Internet slow it down?
Shared internet gets slower more you have connected to it computers.
Coaxial cables are less prone to interference than UTP Why?
Coaxial cables are shielded; thus preventing them from other interference. UTP cable means Unshielded Twisted Pair - thus it has no protection against incoming interference.
In addition to some types of data networks, which of the following use half-duplex communication?
b. Walkie-talkies
(Answer from chapter 3 of "Network+ Guide to Networks")
IPv4 is an abbreviation for Internet Protocol version 4, which is a 32 bit addressing method.
IPv6 is an abbreviation for Internet Protocol version 6, which uses 128 bits.
Why did the Internet designers choose packet switching over instead of circuit switching?
are the standard for the Internet,
What is the drawback of distance vector algorithm?
The distance vector algorithm does not take into account current traffic, type of link, speed of link, type of endpoint routers, etc. It cannot adjust for changes in network traffic and bottlenecks.
To make ARP more efficient computers save recognized mac to IP address mappings on their hard disks in a database known as ARP cache. ARP is an network layer protocol / third layer protocol. ARP provides mapping between Logical to physical address.
What does dhcp use to determine if a dhcp client has an ip reservation?
DHCP uses the clients MAC address to determine the IP address a client receives.
Testimonials are very important to prevent future genocides like the Holocaust. Elie Wiesel wrote his testimony in a book called "Night"
Or, testimonials are a way to advertise with someone saying how it worked for them.
How is it possible for two network cards to work on the same computer?
That's an easy one!
Each Network Interface Card (NIC) has its own machine level address, called a MAC address which is assigned and programmed into it during manufacture. This is different from the IP address, which can be changed.
A NIC is a special hardware card that handles the sending and receiving data computer network.
The address that identifies a NIC is called the Media Access Control (MAC) address. A MAC address identifies a specific physical device and never changes for the life of the NIC. Two NICs never have the same MAC address (unless some manufacturer screws up royally [which has happened]). Because your NIC's MAC address is permanent, it's often referred to as the "real," or physical, address of a computer.
Two get two cards working just install them and their drivers. If they are both identical, they can use the same driver set.
How catalyst switch different from the simple switch?
Catalyst switches have support for several technologies that may be used in larger networks, and that are not available on home switches - for example, VLANs, and STP (Spanning-Tree Protocol), as well as options for port security.
Catalyst switches have support for several technologies that may be used in larger networks, and that are not available on home switches - for example, VLANs, and STP (Spanning-Tree Protocol), as well as options for port security.
Catalyst switches have support for several technologies that may be used in larger networks, and that are not available on home switches - for example, VLANs, and STP (Spanning-Tree Protocol), as well as options for port security.
Catalyst switches have support for several technologies that may be used in larger networks, and that are not available on home switches - for example, VLANs, and STP (Spanning-Tree Protocol), as well as options for port security.
Can Ethernet switch be used in lieu of router?
An Ethernet switch can not fulfill the role of a router, unless it be a "layer 3 switch" also known as "multilayer switch", which has capabilities of both a switch and a router - and is more expensive than either (mainly because it is optimized for handling lots of traffic, quickly).
For a small network, you don't really need a router. Routers are used to divide larger networks into smaller subnets, for efficiency, security, and administration. Routers are also used to connect different branches of a company to headquarters, or to each other, via WAN technologies - the router's role, in this case, is to connect the Ethernet network of a company's branch, to a WAN technology.
Every computer above Windows 95 made by Microsoft, every Mac, every Linux mainstream distribution can have alternate or secondary ip addresses and gateway entries staticly installed per pc. Thus combining both networks on a single Lan with a single router or without a router without conflict.
There is a large number of VPN app which give you US IP address, For me I've used this which giving me more than 39 servers, most of them are from USA( almost 10 servers) this VPN Called ( BVPN) you can try it, i think it'd be helpful.
What is the range of usable IP addresses for 10.150.100.96 27?
That leaves us 5 bits for the host (32 - 27 = 5); the size of the network is 25 = 32 IP addresses, that is, addresses 10.150.100.96 - 10.150.100.127. The first and last address are not usable (can't be assigned to hosts), which leaves us with addresses 10.150.100.97 - 10.150.100.126.
That leaves us 5 bits for the host (32 - 27 = 5); the size of the network is 25 = 32 IP addresses, that is, addresses 10.150.100.96 - 10.150.100.127. The first and last address are not usable (can't be assigned to hosts), which leaves us with addresses 10.150.100.97 - 10.150.100.126.
That leaves us 5 bits for the host (32 - 27 = 5); the size of the network is 25 = 32 IP addresses, that is, addresses 10.150.100.96 - 10.150.100.127. The first and last address are not usable (can't be assigned to hosts), which leaves us with addresses 10.150.100.97 - 10.150.100.126.
That leaves us 5 bits for the host (32 - 27 = 5); the size of the network is 25 = 32 IP addresses, that is, addresses 10.150.100.96 - 10.150.100.127. The first and last address are not usable (can't be assigned to hosts), which leaves us with addresses 10.150.100.97 - 10.150.100.126.
Do Fiber-optic cable send or receive electrical signal?
No. Fibre optic cables use light instead of electrical signals. Depending on the function of the optical fibre either a laser or an LED will be used.
What is a local area network card?
A LAN card is an ethernet card that plugs into the ISA, PCI or PCIe slot in your PC and gives the system the ability to utilize a LAN as a communications link to other PCs or the internet.
Saguaro Federal should use Token ring protocol, as it appears there are multiple locations. Ethernet protocol could be appropriate if everything was located in the same building.
When is the appropriate time to replace hubs with switches?
As soon as possible. Switches are much more efficient than hubs because hubs send the data to all the connect nodes, unlike switches that only forward packets to the appropriate node. Hubs cause a lot of packet collisions which reduces the efficiency of your network. __________________ I was going to say "Now, because switches are so cheap". But your answer is better.
What is the default port number DNS?
DNS uses port 53. DNS queries are generally performed via UDP, and zone transfers are normally done via TCP.
