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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
How does a networked server manage requests from multiple clients for different services?
The applications installed help the networked server manage requests from multiple clients for different services. The server receives the requests and delegates them.
Which IPv4 header field is responsible for defining the priority of the packet?
differentiated services
What is dynamically as related to a routing protocol?
Dynamically, as related to a routing protocol is a type of networking technique whereby the routing protocol creates, updates and maintains the dynamic routing table.
Communications interoperability and collaboration between different agencies, organizations, or departments are a serious challenge for many markets segments including enterprise safety and security, transportation, retail, financial and, of course, public safety and defense. Interoperability simply refers to the ability of personnel to communicate with staff from other agencies and organizations across different networks and devices. Communications interoperability focuses initially on solving the radio interoperability issue between different organizations or agencies which are often hampered by competing and conflicting business interests, organizational dynamics, public safety needs, the regulatory environment, and funding limitations.
Which fiber-optic media type uses light-emitting diodes LEDs instead of lasers?
Multimode fiber (MMF.
Voice and Video...
How do you configure Freegate as a proxy server?
Freegate starts in proxy mode by default. It will automatically open Internet Explorer and corrects all settings.After it has completed its set up process it will open the default website.
What does NAC stand for in networking?
The acronym NAC in the field of networking stands for Network Access Control. Network access control is used for security in computer systems such as antivirus software.
What are the function of RARP?
RARP is short from Reverse Address resolution protocol. As the name suggests RARP functions the reverse as ARP. That is it maps MAC address to IP address.
How is an IPv6 IP address used that begins with 2000?
Global Internet addresses that begin with the Internet Protocol (IP) addresses 2000. An IP address is a sequence of numbers that can identify your computer; there are 128 bits in an IPv6 address.
Why port addresses shorter than IP addresses?
In computer networking, network address translation(NAT) is the process of modifying IP address information in IP packet headers while in transit across a traffic routing device.
The simplest type of NAT provides a one-to-one translation of IP addresses. RFC 2663 refers to this type of NAT as basic NAT. It is often also referred to as one-to-one NAT. In this type of NAT only the IP addresses, IP header checksum and any higher level checksums that include the IP address need to be changed. The rest of the packet can be left untouched (at least for basic TCP/UDP functionality, some higher level protocols may need further translation). Basic NATs can be used when there is a requirement to interconnect two IP networks with incompatible addressing.
However, it is common to hide an entire IP address space, usually consisting of private IP addresses, behind a single IP address (or in some cases a small group of IP addresses) in another (usually public) address space. To avoid ambiguity in the handling of returned packets, a one-to-many NAT must alter higher level information such as TCP/UDP ports in outgoing communications and must maintain a translation table so that return packets can be correctly translated back. RFC 2663 uses the term NAPT(network address and port translation) for this type of NAT. Other names include PAT (port address translation), IP masquerading, NAT Overload and many-to-one NAT. Since this is the most common type of NAT it is often referred to simply as NAT.
As described, the method enables communication through the router only when the conversation originates in the masqueraded network, since this establishes the translation tables. For example, a web browser in the masqueraded network can browse a website outside, but a web browser outside could not browse a web site in the masqueraded network. However, most NAT devices today allow the network administrator to configure translation table entries for permanent use. This feature is often referred to as "static NAT" or port forwarding and allows traffic originating in the "outside" network to reach designated hosts in the masqueraded network.
In the mid-1990s NAT became a popular tool for alleviating the consequences of IPv4 address exhaustion.[1] It has become a common, indispensable feature in routers for home and small-office Internet connections. Most systems using NAT do so in order to enable multiple hosts on a private network to access the Internet using a single public IP address.
Network address translation has serious drawbacks in terms of the quality of Internet connectivity and requires careful attention to the details of its implementation. In particular, all types of NAT break the originally envisioned model of IP end-to-end connectivity across the Internet and NAPT makes it difficult for systems behind a NAT to accept incoming communications. As a result, NAT traversal methods have been devised to alleviate the issues encountered.
Which TCP IP protocol is used by windows to share files and printers on a network?
Server Message Block (SMB)
How does DHCP allow devices to communicate?
They use DHCP to assign IP Addresses to Devices such as Windows XP, Networking flashcards, OIt DHCP and BootP services, and connecting routers. The definition for DHCP is Dynamic Host Configuration Protocol.
Which node is used for network monitoring?
Your network monitoring system will either run in the cloud on a provider's servers, or will be installed within your network. Depending on the monitoring solution, it can be installed on a server or desktop, VM or not, and may require agents to be installed on the devices you want to monitor. In general, a proper monitoring system will have its own dedicated server to run on.
Why is it impractical for an organization to own the entirety of WAN?
It is impractical for an organization to own an entire WAN because WAN's are very large and therefore can become very costly. In addition to costs there are practical issues such as acquiring space as well as the building the network.
In simple terms, we would look at the word broken down into roots. We have photo and electric. Photo means energy given by light, and electric means energy made through charged particles. Therefore, Photoelectric device would be a device that it's powered by electricity generated by light.
An example would be your ordinary calculator. The solar strip at the top is a photoelectric device.
Where is the port forwarding on the BT home hub?
There are several videos and tutorials online to assist you in setting up port forwarding on you BT Hub Home. If you need assistance, there are also many forums for online troubleshooting as well.
Yes, it is true that the OSI model tells us what kind of wire and connector to use to connect the piece to a network. It is said to have a communication function to decrease errors.
Is it possible to use RIP V1 with default static routes?
At the foundrynet website there is detailed information on default static routes and instructions on how to activate RIP V1 defaults.Also, information on switching and routing.
