Networking Protocols

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21 Networking Protocols Questions And Answers

1⟩ How is it different than BOOTP or RARP?

Bootp protocol normally use it in dhcp protocol, it is

configured manully in order to give ip add or there relvent

host.

Rarp is a work just oppostie of Arp. Rarp stand for reverse

address resolution protocol. baiscaly rarp used to find out

your own ip add or mac add of computer so that you can

communicate appropritely with other computer knowing u r

mac or ip address.

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3⟩ IN ALLEN BREADLY PLC FAMILY RS LOGIX 5000 USING WHICH PROTOCOL?

DF1 protocol is an Allen-Bradley data-link layer protocol

that combines .... Softlogix 5800 provides virtual PLC

control using a PC and RSLogix 5000. ...

The DF-1 protocol is an asynchronous byte-oriented protocol

that is used to communicate with most Allen-Bradley RS-232

interface modules. More specifically, the DF-1 serial frame

composition is that of a conventional RS-232 serial frame,

where DF-1 forces some of the serial parameters such as 8

data bits, no parity, and a maximum baud rate of 19200.

Further, the DF-1 protocol specifies how to send data

through a conventional RS-232 serial port, in order to

communicate with the corresponding Allen-Bradley products.

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4⟩ What is the networking control unit?

The Network Control Unit (NCU) is a field panel housing

electronic modules, terminal blocks, and signal conditioners

(pneumatic, linevoltageand electronic) all inside a single

enclosure.

The NCU contains the user-programmable main processor—the

Network Control Module (NCM)—for supervisory functions over

all devices on the local bus, and a combination of the

optional Digital Control Module and Point Multiplex Modules

to directly control field devices that wire to the NCU

termination blocks. This application installs all models of

the NCM(101, 102, 401, 200) into standard 1-Slot, 2-Slot, or

5-Slot base frames.

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5⟩ What is the difference between network based bug tracking system and bug tracking system?

A bug tracking system is a software application that is

designed to help quality assurance and programmers keep

track of reported software bugs in their work. It may be

regarded as a sort of issue tracking system.

Many bug-tracking systems, such as those used by most open

source software projects, allow users to enter bug reports

directly. Other systems are used only internally in a

company or organization doing software development.

Typically bug tracking systems are integrated with other

software project management applications.

Having a bug tracking system is extremely valuable in

software development, and they are used extensively by

companies developing software products.

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9⟩ What is IMAP?

IMAP: Internet Mail Access Protocol..

It is used for incoming mail in client/remote users of a

mail server. A user do not download e- mail in her pc from

server.just to read or access from server. email saves in a

server...

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10⟩ Explain SMTP?

Simple Mail transfor Protocol mainly used for Outgoing Mails i.y it is also known as Outgoing mail server.

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16⟩ How can Jim Herr, a client on an NT TCP/IP network see which remote hosts are currently connected using NBT?

Display protocol statistics and current TCP/IP connections

using NBT (NetBIOS over TCP/IP).

Syntax

By Name

NBTSTAT -a Remote_host_Name [options] [interval]

By IP address

NBTSTAT -A IP_address [options] [interval]

Key

-a (adapter status) List the remote machine's name table

given its name

-A (Adapter status) List the remote machine's name table

given its IP address

-c (cache) List NBT's cache of remote [machine]

names

and their IP addresses

-n (names) List local NetBIOS names.

-r (resolved) List names resolved by broadcast and

via WINS

-R (Reload) Purge and reloads the remote cache

name table

-S (Sessions) List sessions table with the

destination IP addresses

-s (sessions) List sessions table converting

destination IP

addresses to computer NETBIOS names.

-RR (ReleaseRefresh) Send Name Release packets to WINS

and then, starts Refresh

interval Redisplay selected statistics,

pausing interval seconds

between each display. Press Ctrl+C

to stop redisplaying

statistics.

Syntax to see

which remote hosts are currently connected using NBT

c:/>nbtstat -n

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20⟩ What is ESTMP?

pronounced as separate letters) Short for Simple Mail

Transfer Protocol, a protocol for sending e-mail messages

between servers. Most e-mail systems that send mail over the

Internet use SMTP to send messages from one server to

another; the messages can then be retrieved with an e-mail

client using either POP or IMAP. In addition, SMTP is

generally used to send messages from a mail client to a mail

server. This is why you need to specify both the POP or IMAP

server and the SMTP server when you configure your e-mail

application.

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