01)When were OSI model developed and why its standard called 802.XX and so on?
OSI model was developed in February1980 that why these also known as 802.XX Standard (Notice 80 means ==> 1980, 2means ==> February)02)What is Full form of ADS?
Active Directory Structure03)How will you register and activate windows?
If you have not activated windows XP, you can do so at any time by clicking the windows Activation icon in the system tray to initiate activation. Once you have activated windows XP, this icon disappears from the system tray.For registration
Start ==> Run ==> regwiz /r
04)Where do we use cross and standard cable?
Computer to computer ==> crossSwitch/hub to switch/hub ==>cross
Computer to switch/hub ==>standard
05)How many pins do serial ports have?
In computer it's known as com port and could be available in 9pin or 25 pin. On router it have 60 pins.06)How will check ip address on 98?
Start ==> Run ==> command ==> winipcfg07)How will you make partition after installing windows?
My computer ==> right click ==> manage ==> disk management ==>select free space ==> right click ==> New partition
07)What is IP?
It's a unique 32 bits software address of a node in a network.08)What is private IP?
Three ranges of IP addresses have been reserved for private address and they are not valid for use on the Internet. If you want to access internet with these address you must have to use proxy server or NAT server (on normal cases the role of proxy server is played by your ISP.).If you do decide to implement a private IP address range, you can use IP addresses from any of the following classes:Class A 10.0.0.0 10.255.255.255
Class B 172.16.0.0 172.31.255.255
Class C 192.168.0.0 192.168.255.255
09)What is public IP address?
A public IP address is an address leased from an ISP that allows or enables direct Internet communication.10)What's the benefit of subnetting?
Reduce the size of the routing tables.Reduce network traffic. Broadcast traffic can be isolated within a single logical network.
Provide a way to secure network traffic by isolating it from the rest of the network.
11)What are the differences between static ip addressing and dynamic ip addressing?
With static IP addressing, a computer (or other device) is configured to always use the same IP address. With dynamic addressing, the IP address can change periodically and is managed by a centralized network service12)What is APIPA?
Automatic private IP addressing (APIPA) is a feature mainly found in Microsoft operating systems. APIPA enables clients to still communicate with other computers on the same network segment until an IP address can be obtained from a DHCP server, allowing the machine to fully participate on the network. The range of these IP address are the 169.254.0.1 to 169.254.255.254 with a default Class B subnet mask of 255.255.0.0.13)What are the LMHOSTS files?
The LMHOSTS file is a static method of resolving NetBIOS names to IP addresses in the same way that the HOSTS file is a static method of resolving domain names into IP addresses. An LMHOSTS file is a text file that maps NetBIOS names to IP addresses; it must be manually configured and updated.14)What is DHCP scope?
A scope is a range, or pool, of IP addresses that can be leased to DHCP clients on a given subnet.14)What is FQDN?
An FQDN contains (fully qualified domain name) both the hostname and a domain name. It uniquely identifies a host within a DNS hierarchy15)What is the DNS forwarder?
DNS servers often must communicate with DNS servers outside of the local network. A forwarder is an entry that is used when a DNS server receives DNS queries that it cannot resolve locally. It then forwards those requests to external DNS servers for resolution.16)Which command will you use to find out the name of the pc in networks?
NSLOOKUP [192.168.0.1][Ip of target computer]
17)How will enable sound service in 2003?
By default this service remain disable to enable this serviceStart ==> administrative tools ==> service ==> windows audio ==> start up type ==> automatic
18)How will enable CD burning service in 2003?
By default this service remain disable to enable this serviceStart ==> administrative tools ==> service ==> IMAPI CD burning com service ==> start up type ==> automatic
19)What are the difference between hub and switch?
Hub is a layer 1 device. It will out the signal from all of its port except the one from where its insert. It is unable to detect the collision. It works on single collision and single broadcast domain.Switch is layer 2 device. It maintains a CAM table that store the MAC address of devices attached on its port. CAM table is used to make the forwarding decision. It works on per port collision and single broadcast domain.
20)What is layer?
Layer is a completely logical partition of PDU (protocol data unit) process. That define how the information is travel form one computer to other over the network.21)What is TCP/IP?
It is combination of two protocols TCP and IP. It is used for reliable data transfer.22)What is operating system?
An operating system (sometimes abbreviated as "OS") is the program that, after being initially loaded into the computer by a boot program, manages all the other programs in a computer. It provides a platform to application software.23)What is package software?
The collection of mostly used software released in package Form Company. For Example Ms-Office that contain word, power point, Excel, etc.24)Full form of .co.in, .com
- COM - ".com" stands for "commercial".
- NET - ".net" stands for "network"
- ORG - ".org" stands for "organization"
- INFO - ".info" stands for "information"
- BIZ - ".biz" stands for "business".
- IN - 'IN' stands for India. The 'IN' is a 2-letter country code for India.
25)What is ring topology?
In a ring topology, device one connects to device two, device two connects to device three, and so on to the last device, which connects back to device one.26)Which cable is used in LAN?
Generally coaxial and TP media is used in LAN networking.27)What are Difference between STP and UTP?
STP cable is mostly used by IBM; it has an extra cover over each pair.UTP cable is used in star topology. It has a single cover over all pair.
28)What is IEEE?
The Institute of Electrical and Electronics Engineers or IEEE (read eye-triple-e) is an international non-profit, professional organization for the advancement of technology related to electricity. It has the most members of any technical professional organization in the world, with more than 365,000 members in around 150 countries.29)What is 802.3?
IEEE 802.3 is a collection of IEEE standards defining the physical layer and the media access control (MAC) of the data link layer of wired Ethernet. Physical connections are made between nodes and infrastructure devices hubs, switches and routers by various types of copper or fiber cable.30)Full form of ping.
PING stand for Packet Internet Grouper31)What are the minimum requirements for xp installation?
64MB RAM1.5GB free HDD space
233MHz minimum processor.
32)What are 10Base2, 10Base5 and 10BaseT Ethernet LANs?
10Base2— An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband signaling, with a contiguous cable segment length of 100 meters and a maximum of 2 segments.10Base5—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband signaling, with 5 continuous segments not exceeding 100 meters per segment.
10BaseT—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband signaling and twisted pair cabling.
33)What is the difference between an unspecified passive open and a fully specified passive open?
An unspecified passive open has the server waiting for a connection request from a client.A fully specified passive open has the server waiting for a connection from a specific client.
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