anuj

• Jul 15th, 2016

Hub is a broadcasting device which may increase collision domain but switch is based on filter and forwarding and reduce collision domain.

Amar OMdur

• Jul 14th, 2016

Hub is layer 1 device, work in physical layer and the communication between device are half duplex, all the device exist in on collision domain, switch is L2 device and every port a collision domain has concept of Mac address table, (cash)

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Dharmendra Raghuwanshi

• Feb 21st, 2013

Telnet- 23
ftp-21/20
snmp- 161/162

nathsambu

 Profile Answers by nathsambu Questions by nathsambu

• Dec 21st, 2012

Telnet = 23
SNMP = 161
FTP= 20 for connection establishment and 21 for Data Transfer.

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Editorial / Best Answer

Answered by: kalyan raghavan

• Jan 23rd, 2006

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A Physical address is a 48-bit flat address burned into the ROM of the NIC card which is a Layer1 device of the OSI model. This iis divided into 24-bit vendor code and 24-bit serial address. This is unique for each system and cannot be changed.

A Logical address is a 32- bit address assigned to each system in a network. This works in Layer-3 of OSI Model. This would be generally the IP address.

Manu Ratheesh

• Aug 26th, 2017

Physical Address: It is the address of a node defined by its LAN or WAN. It is included in the frame used by Data Link Layer. It is the lowest level address. The size and the format of these addresses...

paras gautam

• Aug 19th, 2017

A logical address is a 32 bit address which is also called ip address and it is used to uniquely identify a device on a network where physical address is also Media Access Control address it is 48 bit address every device in a network has its own unique MAC address

Improve Answer

networking signal

• Jan 18th, 2018

How to operate DHCP / DHCP server?
What is the relation between SERVER and CLIENT and DORA process?

Mallikarjun MS

• Feb 8th, 2017

DORA process means
D; to find the DHCP IP
O; it gives the offer from IP
R; received to select the best IP
A; acknowledgement allote the given IP

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Hybrid devices that combine the features of both bridges and routers.

prasanna

• Jul 25th, 2015

Router is a 3rd layer device
Connecting two networks
Routers are connecting by serial interface

Ganesh Thigale

• Jun 3rd, 2015

Router is used to connect the two networks not two devices. Also router is used to transfer the data from source to destination.

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In a baseband transmission, the entire bandwidth of the cable is consumed by a single signal. In broadband transmission, signals are sent on multiple frequencies, allowing multiple signals to be sent simultaneously.

NEERAJ SINGH

• Sep 5th, 2011

In a baseband transmission, the entire bandwidth of the cable is consumed by a single signal. In broadband transmission, signals are sent on multiple frequencies, allowing multiple signals to be sent ...

adityawalia9

 Profile Answers by adityawalia9 Questions by adityawalia9

• Jun 15th, 2010

Baseband communication uses TDM.  Whole bandwidth is provided to one user at a time.This type of communication is basically used in LAN where data is transmitted in the form of packets (ETHERNET)...

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Ashfaq

• Apr 12th, 2018

Sub netting means dividing the large SINGLE network into many small networks . the main REASON to divide like this ..is to REDUCE or PROHIBIT DATA TRAFFIC during transfer.

usama jamil

• Aug 10th, 2016

Subneting is used for dividing bigger networks into smaller chunks. Performance is improved and security is improved. Minimum loss of IP addresses.

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Mangesh

• May 24th, 2017

Workgroup.
Every PC responsible for its own security

Domain.
Centralized administrator
Service?is responsible?for security

Ricky

• Mar 1st, 2017

Workgroup: (i) Every PC is responsible for its security own. (ii) No centralize administration (iii) Main aim to save hardware recourse (iv) Best suite in school, training institute, cyber cafe Do...

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(i) Broadcast and (ii) point-to-point

khwaja

• Feb 3rd, 2016

1) Wired: It uses physical medium to transmit data such as twisted pair, fiber optic etc. 2) Wireless: It does not use physical link or medium to transmit data instead it use micro wave, infrared etc...

prasanna

• Jul 25th, 2015

Transmission medium are PPP: Point - to - Point Protocol, MP: Multipoint Protocol

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tosine

 Profile Answers by tosine Questions by tosine

• Oct 18th, 2009

Active directory is a directory that enables organisation to create a scalable, secured and manageable infrastructure for user and resource management and to support directory-enabled application. It...

giri_adepu

 Profile Answers by giri_adepu Questions by giri_adepu

• Jun 2nd, 2008

In windows 2000 and 2003 environment ads is a power full sercice ,active directory mainly used for maintaing and promotion of entire company into centralized network administration .it means domine evironmnet

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Manu Ratheesh

• Aug 26th, 2017

Piggybacking: It is the technique used in the bi directional data transmission in the network layer. It is used to improve the efficiency by piggy back the acknowledgement in the data frame instead of sending a separate frame.

Wyes Karny

• May 25th, 2017

Piggybacking is a technique used in bidirectional data transfer. Here, if two nodes are exchanging data, then acknowledgement for node 1s frame is attached with node 2s next frame, which is to be sent to node 1.

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mohamad masri

• Apr 1st, 2015

"Lists of network protocols /numbers of ports and where are uses"

Nidhipriya

• Nov 25th, 2014

There r so many types of protocols like tcp, ftp, udp, smtp, pop, icmp, igmp, http, ip protocol are the set of rules that is followed by all computer system so that they can easily understands the way of how to communicate with other computer systems.

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dgt009

 Profile Answers by dgt009 Questions by dgt009

• Feb 18th, 2012

IPV6 do not use subnetting bcoz it have enough IP.

ED Kwiatkowski

• Jan 26th, 2012

IPV6 cannot subnet so there is no mask

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A network in which there are multiple network links between computers to provide multiple paths for data to travel.

Shubham Tripathi

• Nov 20th, 2015

A mesh network is a network topology in which each node relays data for the network. All mesh nodes cooperate in the distribution of data in the network. Mesh networks can relay messages using either ...

ajithprasadpv

• Jul 26th, 2015

Mesh are of two types:
Full mesh: Each devices are connected to every other devices in the network independently.

Partial Mesh: Multiple devices are connected to each other, but not all the devices are connected.

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Ashish bisht

• Apr 3rd, 2018

True, but router is still not mandatory coz translation bridge can connect dissimilar network segments like ethernet-to-token ring.

anuja

• Jul 15th, 2016

Router is mandatory because the frame format of ethernet differ from token ring so frame need to be designed accordingly

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Windows crashed because NTLDR File is missing. How will you restore this file (Without using Safe Mode Option)?

kamalakar2000

 Profile Answers by kamalakar2000 Questions by kamalakar2000

• Jul 23rd, 2010

Step 1Locate your windows xp/2000 install disk and place it in your CD/DVD ROM drive. If you do not have this disk then you cannot proceed any further.Step 2Restart your computer or turn it off then b...

kumadine

 Profile Answers by kumadine Questions by kumadine

• Dec 18th, 2009

Insert CD in CD-Drive then boot system from CDCopy ntldr file from CD and paste this file to C: drive corresponding folder and then restart this system

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Signals are usually transmitted over some transmission media that are broadly classified in to two categories.Guided Media:These are those that provide a conduit from one device to another that include twisted-pair, coaxial cable and fiber-optic cable. A signal traveling along any of these media is directed and is contained by the physical limits of the medium. Twisted-pair and coaxial cable use metallic...

Ambane Meregembo

• Mar 19th, 2012

What are the thre (3) types of transmission media? List out their advantages and distadvantages

Sarel

• Sep 5th, 2011

Types of transmission media's are:
1) Bounded media
2) Unbounded media

Examples of transmission media.

1) Twisted pair, coax, fiber.

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1. Application 2. Session 3. Network 4. Data Link

Md. Ashif Uddin Bappy

• Nov 15th, 2017

4. Data Link

dhanunjaya

• Aug 25th, 2014

Data link layer

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A communications protocol used to connect computers to remote networking services including Internet service providers.

Piyush Verma

 Profile Answers by Piyush Verma Questions by Piyush Verma

• Nov 3rd, 2010

It is a data link layer protocol that is used to provide direct link between nodes. It can provide connection authentication, transmission encryption or privacy and compression.

adityawalia9

 Profile Answers by adityawalia9 Questions by adityawalia9

• Jun 15th, 2010

Point-to-Point Protocol is a data link protocol. It is a byte oriented protocol (data will be treated a byte).It does not have any flow control (and error control is also limited).  It is used wh...

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abdu kalam

• Apr 27th, 2015

*How DHCP work? DHCP Stands for Dynamic host configuration protocol. DHCP is a protocol used for automatic configuration IP address in client computers connected to IP networks. DHCP operates on a c...

vizhiezhilan

• Aug 27th, 2011

Dynamically configures the IP addresses for the systems present in the network within the specified range only. Reservation of IP address in done here. makes administration at a single point. IP confl...

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