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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 is ipconfig used for?

To get your computers local network IP address, subnet mask, and default gateway typing ipconfig alone will display this information as shown below:

ipconfig

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : hsd1.ut.comcast.net.

IP Address. . . . . . . . . . . . : 192.168.201.245

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . : 192.168.201.1

What will support multiple IA requirements and allows for role customization in eMASS?

In eMASS (Enterprise Mission Assurance Support Service), the capability to support multiple Information Assurance (IA) requirements and facilitate role customization is primarily enabled through its role-based access control (RBAC) system. This system allows users to be assigned specific roles tailored to their responsibilities, ensuring they have access to the relevant IA controls and documentation necessary for compliance and risk management. Additionally, eMASS provides customizable workflows and templates that can be adapted to meet various organizational needs, enhancing its flexibility in managing IA requirements.

How do you change the way a user logs on?

In the user accounts management in the Control Panel is an option to choose between a requirement to use Ctrl + Alt + Del or use the welcome screen.

The differences between peer to peer network and client server network?

With client to server, many people are downloading data from one central location - a one to many relationship.

With peer to peer, many people are downloading data from many locations - a many to many relationship.

What does dedicated server mean?

A dedicated server is a computer that hosts a website or an app for a single tenant. The client does not share the server’s resources with other users and has exclusive use of the setup’s:

  • CPU.
  • RAM.
  • Bandwidth.
  • Internet networks.
  • Storage resources.

A dedicated server is ideal for websites and applications with high traffic demands. This hosting option enables the client to ensure:

  • Optimal performance: As the tenant does not share resources, the website or app has reliable uptime and consistent performance.
  • Custom hardware and software setup: The client has unrestricted root access to the server and can customize the CPU, RAM, disk space, and software.
  • High levels of security: The client can deploy and configure firewalls, use any anti-malware program, and set up security protocols on a dedicated server.

Why do http ftp smtp pop3 imap run on top of Tcp rather than on udp?

tcp is more reliable than udp,udp may have failures or data loss, so we can't afford to have losses in http,smtp,pop3 and so on.Accurate data is very important is all this protocols

ImprovementThe above answer being true, it is worth mentioning that none of the Protocols in your question actually require TCP as its Transport protocol. They simply require the use of a reliable protocol at the Transport Layer (refer ISO::OSI network model) and TCP is the best there is right now.

And also, since these protocols were developed after the reign of TCP as the primary transport protocol started, integrating them with TCP is relatively easier. If used with other protocols, it has to be explicitly configured into the App protocols.

Regards

Binaek Sarkar

Foundation

http://www.foundation.net.in/

What is the class of address for 46.39.42.05?

if you mean local vs. internet then i would say internet. (local is usually based around 198 numbers)

How many hosts can possible in a class A ip range?

class A ip has 16777216 host but valid hosts are only 16777214.(2^24-2)
So answer is 16777214 hosts

What is the transfer rate for 802.11b?

802.11b Wireless networks support a maximum throughput of 11Mbps (megabits per second). From a practical standpoint, the average throughput will probably be closer to 5Mbps.

What is the meaning of A2xcfy in cables?

A2XFY cable is a type of cable that is armored. It is particularly used for earthing, and other electrical uses like mechanical protection.

List the types of connectors to be used for cables?

According to the itt book ;)

I came up with:

Connectors for twisted pair cable include the modular RJ type of jacks and plugs (RJ-11;RJ-14; RJ-22; RJ-25; RJ-31; RJ-45; RJ-48; RJ-61) (of four, six, and eight position configurations) along with the hermaphroditic connector employed by IBM. The hermaphroditic connector is specific to STP and is also known as STP connector, IBM data connector, or universal data connector.

The connector used with patch panels, punch-down blocks, and wall plates, is called an IDC (insulated displacement connector).

If considered a connector, there is the modular Y-adapters used for splitting usually in 10Base-T, Token Ring, and voice applications. Also, if considered a connector, there is the crossover cable which is wired to a T586A pinout scheme on one end and a T586B pinout on the other end.

Coax connectors used with video equipment are referred to as F-series connectors (primarily used in residential installations for RG-58, RG-59, and RG-6 coaxial cables). Coax cables used with data and video backbone applications use N-connectors (used with RG-8, RJ-11U, and thicknet cables). When coaxial cable distributes data in commercial environments, the BNC (Bayonet Niell-Concelman) connector is often used. It is used with RG-6, RG-58A/U thinnet, RG-59, and RG-62 coax cable.

Fiber-optic connectors include SC, duplex SC, ST, duplex ST, FDDI, and FC. These relate to different types of fiber-optic cables and configurations. Three of the SFF connectors that have been propagated (during the life span of the book) for fiber-optic cables were LC, VF-45, and the MT-RJ.

Which WAN technology operates at Layer 3 of the OSI model?

Which? Where are the Options?

WAN Technologies operate & involve Layer1, Layer2 & Layer3 of OSI Model. Example of WAN Technology Protocols are Frame Relay, ATM & X.25 protocols.

What is difference between WEP 64 and WEP 128?

The 64 bit WEP key uses a 40 bit (10 Hex character) Encryption and a
128 bit WEP key uses a 104 bit (26 Hex Character) Encryption.
So the 128 bit WEP key is a higher level of encryption compared to 64 bit WEP.

Bandwith is measured in?

In computer networking, bandwidth (or data transfer speed) is measured in binary bits per second (bps) or bytes per second (B/s), where one byte is equal to eight bits. For example, a broadband connection speed of 8Mbps would theoretically allow a user to download 1MB of data every second.

What is the purpose of flow control?

The management of data flow between devices in a network. It is used to avoid too much data arriving before a device can handle it, causing data overflow. It can prevent the loss of segments on the network and avoid the need for retransmissions.

What is brighthouse networks?

Brighthouse Networks is a high-speed data, voice, and video services provider. They service businesses of different sizes throughout five states: Florida, Alabama, Indiana, Michigan, and California.

When armored cable is used what protection is provided at the cable end?

these little devices are generally called connectors

when you cut the armor it leaves some burs so there a little fiber bushing you slip under the armor and over the wire before putting in into the connector and into the box

rome cable company had a armored cable they called BX which kinda stuck

the generic term is MC for metal clad

MC Cable Connectors

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These little red bushings that come with rolls of BX cable are called anti-shorts.

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the little bushings are also called redheads

What will happen the packets arrive to the destination out of order?

The packets will be delivered and reassembled at the destination.

What is the raw material used for Fiber Optic cable?

PBT(polybutylene terepathalate),Thixotropic jelly,FRP(fiber reinforced polymer),Binder yarns,glass yarns,aramid yarns,water blocking yarn,water blocking tape,flooding compound,polyethylene,corrugated steel tape or aluminium tape

Is it possible web server and mail server have same alias name?

Web servers and mail servers can co-exist on the same machine because they use different ports. The standard port for HTTP is 80, and the standard ports for mail are SMTP 25 and POP3 110.