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What is the subnet mask of this network
if interface address is 130.237.14.25/23- what is the subnet mask of this network- how many usable IP address in this network- what is the Subnet ID(IP) of this network- what is broadcast IP of this network
saeedkhan
- Nov 20th, 2009
The Default subnet mask for this Ip address is 255.255.254.254 as this is class B IP address. But the the subnet mask is 255.255.254.128/23.Since, ...
dilipmohapatra
- Oct 4th, 2007
Subnet Mask: 255.255.254.0No. of IP addresses assigned in that subnet: 2^9 -2=510Subnet ID: 130.237.14.0/23Broadcast ID: 130.237.15.255
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How do you perform subnet addressing ?
kripamoy
- Sep 14th, 2012
Subnetting divides one large network into several smaller ones. It adds an intermediate level of hierarchy in IP addressing.
Sandhya.Kishan
- Apr 19th, 2012
To create or to perform subnet addressing the local address should be divided into a number identifying the physical network and a number identifying the host on the subnet. Then the senders route m...
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VPN Network Protocols
Benefits of VPN ? Difference between L2TP and PPTP Protocols
vishnurajr
- Dec 15th, 2010
A Virtual Private network (VPN) allows the creation of private networks
across the internet, enabling privacy and tunneling of non-TCP/IP protocols.
Three different categories of VPNs:
They are Remote access VPNs, Site -to-site VPNs, Extranet VPNs.
VISHNU RAJ.R
prasanna168
- Dec 13th, 2007
A Virtual Private Network ( VPN) delivers private network services over a public infrastructure. An IP VPN is a partitioned private network constructed over a shared IP-based backbone that utili...
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TCP protocol and UDP protocol
what is difference between TCP protocol& UDP protocol?
rinumca
- Jun 27th, 2008
TCP stands for Transmission control protocol and it is a connection oriented protocol. The sender will get acknowledged after recieving the packets successively, by the reciever. No other pacets ...
Praveen joy
- Apr 18th, 2008
The difference between TCP and UDP is connection(TCP) and connectionless(UDP) protocol.Because In TCP for transferring every Packets it needs a acknowledgement packet from reciever ,so if any packet l...
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Access a File on Another Computer
A person would like to access a file on another computer (connected via LAN) while working with safe mode. What should he do?
jethin
- Jun 22nd, 2009
In safemode itself he can use telnet to access file on the other system in the same LAN
sashok_001
- Aug 23rd, 2008
The User has to restart the PC and Getting into the Safe mode with networking
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VLAN and INTERVLAN
What is VLAN and INTERVLAN? Why do we use these techniques?What are the differences between STP, RSTP and MSTP?
mllhzaheer
- Jul 9th, 2009
VLAN are used to segment your network eliminate broadcast it is also used for security purpose.VLAN of sales department cannot access VLAN of finance department.InterVLANs are used to create VLAN to VLANs.
gurbirks
- Nov 28th, 2008
VLAN(Virtual Local Area Network) is a logical grouping of network users and resources connected to administratively defined ports on a switch. VLAN's break up broadcast domains in layer 2 switch n...
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Explain about Scan Disk ? How scan disk fixes errors ?
viraj.tillu
- Dec 9th, 2008
It is a tool used to check and repair disk related errors like,1. Bad Sector2. Partition Table3. Cross Link File4. Currup File etc.
manoes
- Sep 25th, 2008
Scandisk is Windows' general-purpose hard drive diagnostic utility. It will find and fix any data errors present on the drive. A "standard" scan checks for any data errors on the drive. ...
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IP V6 PING
How do you ping from one host to another in IPv6 without ARP?
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ISP Protocol
Which protocol is used to communicate between client and ISP?
tituxjec
- Mar 12th, 2009
OSPF is used. Because it is considered to be the most efficient IGP(interior gateway protocol). BGP is more widely used as exterior gateway protocol(EGP).
prabhub
- Jan 13th, 2009
I would assume BGP to communicate with the ISP and IGP to communicate with the hosts internal to the network
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Communicating
When two network layers are in communication with one another, these layers are known as?a.)PDUsb.)peer entiiesc.)PRAMsd.)sockets
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Network Negotiation
What does negotiation mean when discussing network protocols?
vijaykwt
- Apr 20th, 2010
The Difference Between Half and Full Duplex."Duplex" simply means you're able to send and receive data (most often the human voice) from the same device whether that be with your phone, 2-wa...
zeeshanexpert
- Mar 30th, 2010
Negotiation has to do with getting both sides to agree on some parameters or values to be used during the communication. Maximum packet size is one example, but there are many others.
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Connect and Configure
There are four routhers and 4 swiches and 40 computers in an office. How will you connect each devices and configure those devices?
haisudha123
- Oct 13th, 2010
This is using different network build purpose, so connect first router to first switch and connect 10 nodes with first switch, this is one network ex:192.168.1.0 networkand connect second router...
nawin_54
- May 12th, 2010
Ahmed, based on requirement we connect the networks, you didn't mention the series of switches and routers.
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Read a Switch
You are given only the IP address of the switch but not the port number. How will you read that switch?
sonet
- Aug 4th, 2010
If the switch has an Ip address, you telnet to the switch and provided that there is no password set either at virtual terminals or to enter the privileged mode, you can enter privileged mode and write sh run and read the running config.
sonet
- Aug 4th, 2010
A switch can have an Ip address for telnetting purpose.So, if you telnet to the switch, and if you have no password on Telnet you can access the switch (provided that there is no privileged mode password set) and then 'Show Run' , you can read the running configuration.
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What is RAID?
A method for providing fault tolerance by using multiple hard disk drives.
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What is MAC address?
The address for a device as it is identified at the Media Access Control (MAC) layer in the network architecture. MAC address is usually stored in ROM on the network adapter card and is unique.
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What is difference between ARP and RARP?
The address resolution protocol (ARP) is used to associate the 32 bit IP address with the 48 bit physical address, used by a host or a router to find the physical address of another host on its network by sending a ARP query packet that includes the IP address of the receiver.The reverse address resolution protocol (RARP) allows a host to discover its Internet address when it knows only its physical...
rinumca
- Jun 27th, 2008
The adress resolution protocol (ARP) associates an IP address with the physical adress. On a typical physical network (eg: LAN) each device on a link is identified by a physical or station adress usua...
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What is OSPF?
It is an Internet routing protocol that scales well, can route traffic along multiple paths, and uses knowledge of an Internet's topology to make accurate routing decisions.
krisgroup
- Oct 22nd, 2007
hi,OSPF is Open shortest path first, basically comes into the category that uses link state as the routing info communication. OSPF is used in a particular Autonomous system, not used on the internet ...
Jai Singh
- Dec 18th, 2006
Open Shortest Path First is a Routing algorithm. Using this algorithm Router choose one (Best Path) among several Path .
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What is a Bridge? When is it used? How is a bridge configured? What are the software and hardware components of a bridge?
vmshenoy
- Jan 8th, 2007
Bridge are data link layer devices! Store and forward devices.Many organisation have multiple LANs.LANs can b connected by devices called Bridges.
Navaneethan
- Jul 25th, 2006
Bridge which is used to segment the network. So it reduces the network traffic between the two segments.
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How can we create VPN to connect to branch office of the same office.what would be the preliminary requirement?
panditume
- Jul 7th, 2011
is a secure way of connecting to a private LAN at a remote location, using the Internet or any unsecure public network to transport the network data packets privately, using encryption.The VPN uses au...
Well wisher
- Feb 21st, 2007
Are you crazy, when you don’t know answer why you are writing nonsense. I request to webmaster to block such an illiterate users post.
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Computer Networks Interview Questions
Ans