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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 protocol map ip addresses to layer 2 addresses?

ARP - Address Resolution Protocol

ARP - Address Resolution Protocol

ARP - Address Resolution Protocol

ARP - Address Resolution Protocol

Which two of these are key functions of routers?

The first purpose of a router is packet switching. It decides the best route for a packet to travel via connection speed, static on the line, and things of that nature. The second purpose of a router is connection to a network, without one you will not be able to connect. Related Terms: LANS

WANS

MANS SUBNET MASK

IP ADDRESS

NETWORK ID

BROADCAST ID

In STP what device acts as a guide to setting the best paths between switches?

In STP, first a central switch (or bridge, as it it called in STP) is selected - the "root bridge". All other switches calculate the shortest path to this root bridge.

What is the proper order of the layers of a generic atmosphere from lowest altitude to highest?

The atmosphere has four layers. Here is the order of the layer from the lowest altitude: the troposphere, stratosphere, thermosphere, and the exosphere.

Network computer which is attached to a network is called a?

its just called a network enabled computer or server or a workgroup and this if it configured to work

What are fiber optic termination boxes?

Fiber optic terminal box generally refer to the box shape fiber optic management products used to protect and distribute the optical fiber links in FTTH Networks. Usually the fiber optic box includes the fiber optical patch panels and fiber optic terminal box. Fiber optic patch panel is bigger size, fiber optic termination box is smaller. Actually there are too many fiber optic boxes and fiber management devices, they are hard to count the types, many manufacturers will make the fiber optic boxes according to their own design and they may give the fiber optic boxes different names and model numbers.

What is a path to a file?

Files, on hard disks, are stored in different directories or folders. Folders can contain other folders. A path is the complete specification of disk and folders, required to reach the file. For example, in Windows, a filename, including its complete path, may look like this:

c:\My Documents\Personal Stuff\MyText.doc

Only the last part (MyText.doc) is the filename; the part before that is the path name.

Files, on hard disks, are stored in different directories or folders. Folders can contain other folders. A path is the complete specification of disk and folders, required to reach the file. For example, in Windows, a filename, including its complete path, may look like this:

c:\My Documents\Personal Stuff\MyText.doc

Only the last part (MyText.doc) is the filename; the part before that is the path name.

Files, on hard disks, are stored in different directories or folders. Folders can contain other folders. A path is the complete specification of disk and folders, required to reach the file. For example, in Windows, a filename, including its complete path, may look like this:

c:\My Documents\Personal Stuff\MyText.doc

Only the last part (MyText.doc) is the filename; the part before that is the path name.

Files, on hard disks, are stored in different directories or folders. Folders can contain other folders. A path is the complete specification of disk and folders, required to reach the file. For example, in Windows, a filename, including its complete path, may look like this:

c:\My Documents\Personal Stuff\MyText.doc

Only the last part (MyText.doc) is the filename; the part before that is the path name.

Explain how microkernels can be used to organize an operating system in a client server fashion?

Since the micro kernel containing only the code that must execute in kernel mode, which like for setting device registers, switching the CPU between processes, manipulating the MMU, and capturing hardware interrupts. Then we can include a file server in program language (e.g. Java or C language). Both the client and the server need to share some definitions, for example, using the " #include <header.h> statement, which has the effect of causing a preprocessor to literally insert the entire contents of header.h into the source program just before the complier starts compiling the program.

Can coaxial cable electrocute?

Yes, under certain circumstances the coax can carry sufficient voltage and current to be lethal if you make contact with the center conductor and ground, and the voltage enters your body. This might happen if you chance to contact the main trunk cable either coming from a downed aerial line or from an in-ground pedestal.

In practice, the coax in the average home does not carry any appreciable voltage, unless coax-based home phone service is present - and then the ring voltage might be sufficient to shock you if you are in contact with the bare conductors.

What is a network that transfers private information securely over the Internet of other public network?

That is called a VPN - Virtual Private Network. The basic idea is that information is encrypted before it is sent over the public network.

That is called a VPN - Virtual Private Network. The basic idea is that information is encrypted before it is sent over the public network.

That is called a VPN - Virtual Private Network. The basic idea is that information is encrypted before it is sent over the public network.

That is called a VPN - Virtual Private Network. The basic idea is that information is encrypted before it is sent over the public network.

What is multicast traffic?

Multicast traffic is traffic that is sent once, but for multiple recipients. Certain pieces of equipment will re-send the multicast traffic to anyone interested in receiving them.

Multicast traffic is traffic that is sent once, but for multiple recipients. Certain pieces of equipment will re-send the multicast traffic to anyone interested in receiving them.

Multicast traffic is traffic that is sent once, but for multiple recipients. Certain pieces of equipment will re-send the multicast traffic to anyone interested in receiving them.

Multicast traffic is traffic that is sent once, but for multiple recipients. Certain pieces of equipment will re-send the multicast traffic to anyone interested in receiving them.

What does the window field in a TCP segment indicate?

It indicates the "number of bytes the device is willing to accept".

What is the subnetmask for 192.168.128.0 25?

this is a class c network address and the subnet mask is by default

255.255.255.0 or /24

What router prompt can you use the router rip command?

On a cisco router you would go into privilege-exec mode (enable) and then into "configure terminal" mode. From there you can use the router rip command.

How are route policies applied in the core?

The core must be able to quickly forward data to other parts of the network.

In the text the term connection oriented service is used to describe a transport layer service and connection service for a network layer service Why the subtle shades in terminology?

In a virtual circuit network, there is an end-to-end connection in the sense that each router along the path must maintain state for the connection; hence the terminology connection service.

In a connection-oriented transport service over a connectionless network layer, such as TCP over IP, the end systems maintain connection state, but the routers have no notion of any connections; hence the terminology connection-oriented service.

What is the difference between linkage and networking?

Networking, in the CLC context, is basically extending the outreach of the resources in different

ways so as to increase the effectiveness of the programme. The areas of operation can also be

increased through networking. Networking can be between CLCs, or with other institutions.

Linkage and networking are different in the degree of commitment by the partners: In linkage, the

relationship between partner organisations is quite loose, while in networking, it is much stronger,

usually because the groups and agencies have common objectives and beneficiaries.