Questions in: Network & Telecom

TCP/IP protocol was developed prior to OSI model.
OSI model has 7 layer & TCP/IP model has 4 layer.
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OSI model | TCP/IP model
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Application,Presentation,Session | Application
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Transport | Transport
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Network | Network
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Data-link,Physical | Physical
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A). JAY STICK.
B). TRACK BALL.
C). MOUSE.
D). PRINTER.

A). QBE.
B). SQL.
C). QUEL.
D). C++

b
c
d

A). INFOSEEK.
B). ALTA VISTA.
C). LYCOS.
D)GOPHER.

Infoseek

Hi,
RJ45 name is given because it transmits data in the form of
Sessions from source to destination.

TCP (Transmission Control Protocol) works to provide the
reliable data transmission. To be able to do that, the TCP
first establishes a connection using a 3 way handshake
method. Once the connection is established, the data is
transmitted. But is it enough for providing a reliable data
transmission? Probably not!
TCP provides the function of retransmission if the data is
lost while being transmitted. For doing this an
acknowledgment receipt is required before the sender can
send more data.

Hi,
4th Layer of OSI layer which is Transport Layer ensures
reliable transmission of data.

Codec is an acronym used for Coder-Decoder.
Codec is basically and entity/software-program which codes
the signal/packet and the other end then decodes the
signal/packet.

encryption and decryption procesess is nothing but codec

Antivirus is a type of developed software or a program designed specifically to protect computers from being infected from viruses. Most Antivirus products provide free, live updates, as well as scheduled virus scanning. After a Virus has infected your system, it can launch annoying pop up windows that repeatedly place messages on your screen. It can can also deny you access to your data files and even change your system configuration settings. In advanced stages, a virus can even start deleting files as well. Without Antivirus protection, computers are at great risk for damage and possibly complete shutdown.

BIOS is an abbreviation for Basic Input Output System. When you turn on your computer, the BIOS, which is a piece of software, checks all of the components on your computer, starts the operating system, and support the transfer of data among hardware devices. It allows the computer’s hardware and operating system to communicate with additional devices, such as printers, mice and scanners.

An Administrator for Windows XP Professional, is a person responsible for setting up and managing domain controllers or local computers and their user and group accounts, assigning passwords and permissions, and helping users with networking problems. Administrators are members of the Administrators group and have full control over the domain or computer. For Windows XP Home Edition, a person who can make system-wide changes to the computer, install software, and who has access to all files on the computer. A person with a computer administrator account has full access to other user accounts on the computer.

TCP/IP is an abbreviation for Transmission Control Protocol/Internet Protocol. These protocols are what computers use to talk, or communicate with hosts on the internet. In other words, TCP/IP is the basic language of the internet. These protocols are based on preset rules, telling the computer how information should be exchanged.

Safe mode is a mode of operating syystem in which O.S.
loadds anly default drivers for devices. it also disconnect
or not detect any kind of external devices which can cause
system halt such as network card. Moreover we can say it
blocks all the sertificats which are not authenticated by
developer. For example: In window network card is not
deteceted bcs there is no drivers loaded for this device.
in safe mode, O.S. also minimise the no of applications &
devices used by a system. Safe mode also shows whether
window's files are ok or damaged. If window's file or files
are missing or corrupt then it will not start in safe mode
otherwise u will get desktop in safe mode which means
system status is okay.

safe mode is mode of operating system.
main operating system is crropted.ex-vista,xp,windows7
not open.safe mode is the open.

A Bridge Router or brouter is a network device that works as
a bridge and as a router. The brouter routes packets for
known protocols and simply forwards all other packets as a
bridge would.
Brouters operate at both the network layer for routable
protocols and at the data link layer for non-routable
protocols. As networks continue to become more complex, a
mix of routable and non-routable protocols has led to the
need for the combined features of bridges and routers.
Brouters handle both routable and non-routable features by
acting as routers for routable protocols and bridges for
non-routable protocols. Bridged protocols might propagate
throughout the network, but techniques such as filtering and
learning might be used to reduce potential congestion.
Brouters are used as connecting devices in the networking
system, so it acts as a Bridge in a network & as a Router in
a internetwork

this is a hardware device that functions as both a bridge and a router to forward data from one network to another.