Notes, abstracts, papers, exams and problems of Technology

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Classified in Technology

Written at on English with a size of 16.01 KB.

1. Refer to the exhibit. The network administrator needs to setup Switch1 for remote access from HostA. Theshow ip interface brief is issued on Router1 and the show interfaces trunk command is issued on theSwitch1 to verify the current status. The administrator applies the additional configuration shown in theexhibit to Switch1. However, the telnet from HostA fails. What additional commands need to be appliedto the switch?
Switch(config)# interface vlan 10
Switch(config-if)# ip address
Switch(config-if)# no shutdown
Switch(config-if)# ip default-gateway

2. Refer to the exhibit. On the basis of the configuration shown, how will an Ethernet frame on port GigabitEthernet0/1 be modified?
802.1Q encapsulation inserts

... Continue reading "Ccna3" »

Domestic Electrical Installations

Classified in Technology

Written at on English with a size of 14.02 KB.

The electricity used to meet our energy needs (housing, buildings and industries) But there are serious dangers such as fires and electrocucions if facilities do not meet the appropriate security.
Low Voltage Electrotechnical Regulations (REBT) technical conditions and guarantees must be met by electrical installations connected to a low voltage supply in order to:
-Preserve the safety of persons and property.
-Ensure the normal operation of these facilities and prevent disruptions that could cause other facilities and prevent disruptions that could cause other facilities and services.
-Contribute to the technical reliability and efficiency of economic facilities.
Complementary technical instructions (ITC - BT)... Continue reading "Domestic Electrical Installations" »

Centos 5.5

Classified in Technology

Written at on English with a size of 5.39 KB.

#useradd nombredeusuario :: para crear usuarios

#passwd :: nombredelusuario

#groupadd :: nombredelgrupo :: (forma normal)

#groupadd -g 600 nombredelgrupo :: (guid sobre 650)

#userdel nombredelusuario :: para deletear usuarios

#groupdelnombredelgrupo :: borrar el grupo

#usermod -G nombredelgrupo nombredeusuario :: para asignar usuario a grupo.

opcion 2: editar archivo /etc/group -> grupo:x:600:usuarioqueseagregara

#nano /etc/shadow :: para poder ver los usuarios y poder bloquearlos

#passwd -l nombredeusuario :: para bloquear usuario

#passwd -u nombredeusuario :: para desbloquear usuario

#sudo passwd :: para cambiar la contraseña de root

# tail /etc/passwd :: paraver informacion de usuarios

#su nombredelotrousuario :: para iniciar sesion como el usuario... Continue reading "Centos 5.5" »

Sikandria port

Classified in Technology

Written at on English with a size of 1.19 KB.

Border Gateway Protocol : EGP protocol which runs between different AS no.

IBGP -- Forming neighborship between routes of same AS

EBGP -- Forming neighborship between routers of different AS

AD -- IBGP 200 EBGP 20

Runs on TCP port no 179 

Path attributes : Wellknown ; optional
Wellknown - Mandatory | Discretinary
Optional -   Transitive | Non-transitive

Wellknown Mandatory : As-path, origin, Nexthop
Welllknown Discretinary : local-preference , Atomic aggregate

Optional Transitive : Community , Aggregator
Optional Non transitive : MED , Cluster , Weight

Path Selection :  We love oranges as oranges meant for pure refreshment.
Local preference
Router ID 


Classified in Technology

Written at on English with a size of 1.05 KB.

physical computing:is the computer field that

studies the connection between the physical

world and computers. The connection is bi-

directional: *It consisct of sensing enviroment

information and sending it to computers for

processing:we use sensors *Use information

to control motors,heating systems and other

devices capable of acting on he enviroment:

we use actuators.educational applications:

physical computing is a constantly evolving

field.With the emergence of new devices,new

fields of knowledge to explore are generated.

Main parts of Arduino UNO:14 diital pins:

input and outout pins-6 analog pins:input

pins-a reset button to restart the program

runing on the board-Some leds to report

the status of the circuit-external powerconet

Chuleton steak

Classified in Technology

Written at on English with a size of 1.84 KB.

Steak Diane: /season the sirloin steak/ coat the steak Lightly with French mustard/ roll the steak on to a service fork/ heat the Butter in the suzette pan and when hot, unroll the steak into the pan taking Care to do it away from the customer. /Add a dash of Worcester sauce / Turn the Steak and cook on the other sice / Remove the steak from the pan and place it On a hot fish plate. Cover with a second plat to keep hot. / Sauté the onions And mushrooms in the pan (add a little more butter if required) /Return the Steak to the pan/ Add the red wine and reduce/ Add the sauce demi-glass / Glame With brandy / Serve the sirloin steak on a hot joint plate and garnish with a Little chopped parsley.

Peaches Flambe with cognac: cover the center of the

... Continue reading "Chuleton steak" »

Human resources management barriers empowerment

Classified in Technology

Written at on English with a size of 3.25 KB.

technology:is creating practical solutions to satisfy human needs and problems.

 factors in the technological process

physical and scientific concepts

technical drawing

materials and their properties

work techniques

economic factors

information technology

stages of the technological process

needs and problems

collecting information


planing(materials-tools-time-money-people in change)


evaluating and checking

writing a report

materials for technical use


WoodTreesElectrial insulator/Thermal insulator
PlasticRaw oilMechanical strength/Electrical insulator
Metal and alloyMinerals in rocksHard/Electrical insulator
TextilesVegetables,Animals and oilElastic/Resistant
StoneRocksThermal insulator/Electrical insulator
... Continue reading "Human resources management barriers empowerment" »

Internal leakage in

Classified in Technology

Written at on English with a size of 1.22 KB.

ELECTRICAL WIRING: PCS Power breaker switch: Ensures that the power used does not exceed the maximun power that the customer had contracted. Main breaker switch: Protects the wiring from short circuits. ELCB Earth leakage circuit breaker: Security device that disconnects the wiring if someone gets an electric shock or there is a current leakage. MCB Miniature circuit breaker: Protects against overloads and short circuits and allows disconnect independently differect sections. HEATING SYST: Depending on the number of users: District heating: Thermal power station is located in a separate building and network is shared by many users. Central heating: The heat source is shared by a whole building or block of flats. Individual heating: Each home
... Continue reading "Internal leakage in" »


Classified in Technology

Written at on English with a size of 2.61 KB.

Prawn Cocktail: Scoop the mayonnaise into a soup plate/ Add a few dashes of Worcester sauce/ Add the brandy/ Add the double cream/ Add The lemon juice and blend using a service spoon/ Add the tomato ketchup unitl a Light pink colour is achived/ add the season shrimps and toss in the sauce Until coated/ Place the chiffonade of lettuce into the bottom of the Coupes/Carefully cover the chiffonade with the prepared shrimp/ Dust with Cayenne pepper/Serve on a doileyed plate with a teaspoon, fish fork, lemon Wedge and Brown bread and butter.

Crepes Suzzete: cover the center of the suzette pan with A layer of sugar and allow it to caramelize/ when Golden Brown, add the butter/ Mix well using the lemon wedge on the end of the fork. The lemon adds flavour

... Continue reading "flipes" »

Blondin crane lifting

Classified in Technology

Written at on English with a size of 4.73 KB.

General cargo Terminals. Classification: - Conventional: These terminals Are very old installations, which at the beginning did not move unitized cargo. Their layout is simple and in general they do not require large extensions for Cargo handling and manipulation. Distribution and dimensions, as well as Installations needed depend on the cargo type manipulation and they have open Storage areas as well as light storage facilities, silos and horizontal Storage. ¿How do they operate? For the cargo loading and discharging, They use mobile shore cranes with high lifting capacity between 20 to 30 mt, For the storaging and interconnectitvity, depends on the cargo presentation, They use: platforms, rolling cars and reach stackers and reclaimers. A.

... Continue reading "Blondin crane lifting" »