Notes, abstracts, papers, exams and problems of Technology

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Ccna3

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 10.1.1.250 255.255.255.0
Switch(config-if)# no shutdown
Switch(config-if)# ip default-gateway 10.1.10.254

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.

ELECTRICAL INSTALLATIONS:
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.
Weight  
Local preference
Self-origin
AS-path
Origin
MED
Path
Router ID 

A laminar boundary layer is a layer

Classified in Technology

Written at on English with a size of 6.21 KB.

1.What’s The PBX where all switching is done in IP.

a.IP Enabled PBX

b.Hybrid PBX

c.IP-PBX

d.TDM-PBX

2.What Kind of firewalls are designed to manage VoIP connections in IPv6?

a.Traditional firewalls

b.SIP Aplication Level Gateways

c.Session Border Controller

d.Jitter Buffer

3.What’s NOT a VoIP advantage from PSTN telephony?

a.Access from Anywhere. Not constrained to a physical location

b.Security, Resiliency and Availability.

c.It depends on electricty

d.Video Conferencing possibilities

4.The Variables we can use in Asterisk dialplans are NOT:

a.channel Variables

b.environment Variables

c.global Variables

d.Local variables

5.What Three business are involved in VoIP convergence?

                Broadcast

                Telephony

... Continue reading "A laminar boundary layer is a layer" »

Aircraft systems

Classified in Technology

Written at on English with a size of 4.87 KB.

A structure is a collection of elements arranged in an optimum way to support a body or an object.////The structure of an object is the orderly distribution of its essential parts . This is what gives the object its shape.///

Mass structures: These are solid, heavy and very sturdy structures,ex: walls, dams etc///.Frame structures: These structures are formed by columns and beams that act as supporting elements. Ex:the structure of a building.///Truss structures: These structures are composed of bars that form triangles .They are lightweight and sturdy.///Suspend structures:these are held in place by cables and suspenders attached to sturdy supports . Ex :tents marquees..///A force is an influencethat can deform a bod or change its movement,
... Continue reading "Aircraft systems" »

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" »

The best way to measure motivation

Classified in Technology

Written at on English with a size of 4 KB.

Pfeffer

Politics: T

Tellinf: F

One indi: T

The change: T

Singapore: F

Pfeffer: T

In measure: F

One way: T

You cannot: T

The trend: T

Pleff believ: T

Accounting: F

Shaw:

On the b2b : F

The intangible: F

Direct market: T

Incresingly: T

With the web : T

The imminent: F

Match

At its: Ubiqui

Bricks: Channels

Support: Complete

Has flexible: New gener

Productuvi; Where b2b

Frontend: 3

Middie: 2

Internet: 4

Web server: 3

App server: 2

Highest: 1

Database: 1

Backend: 1

Communication: 4

Which compo: 3

The integra:

it is Clear: b2b

have Extended:

the_: E-business

aljazoera 2014:

in recent: T

the National: T

the Chinese: T

one cause: F

married: F

the rate: F

there are Over: F

only a Frac: T

the Pollution :F

more than Half: T

in the Last: F

there are No: F

aljozera 2016:

president Obama: F

Air law

Classified in Technology

Written at on English with a size of 5.47 KB.

Measuring: ruler, protractor, carpenter's square. Drawing mark and lines: punch, pencil and a permanent marker. Cutting: scissors, utility knife, jigsaw, punch and hot wire cuttrt. Drilling: tap and hand habdle and a drill. Filing and sanfing: file and sandpaper, belt sander and an orbital sander. Joining; temporaly: bolts, nuts and washers. Permanent: heat sealer and hot air welder.

Textiles: 
Naturals: come from animal, plant or mineral sources. Animals. Wool: produced by sheep. It may be naturally white, yellowish, grey-brown or blakc. Is very elastic and resistant to acids. Silk: is made by the larvae insects called silk moths. These larvae produce a liquid that driesin contact with the air, forming thin threads. Silk is very strong and
... Continue reading "Air law" »

electricidad

Classified in Technology

Written at on English with a size of 2.52 KB.

¡Escribe tu texto aquí!the gears or sprockets are mechnical elements designed to trasmite turning movements 

cylindrical gears they have a cylinder shape they trasmite the movement between parallel shafst
conical gears they have a truncated cone shape they trasmite the movement between perpendicular shafts
gears with straigh teeth  the teeth follow straight lines as you can see in the previous section
gears with helical teeth  they have curved teeth they are quiter than gears with straight teeth for this reasonthey are used in the gears boxes of cars
fuctionin of gears  motor gear clockwise idler gear rotates counter clockwise driven gears clockwise

trasformation of the movement strength and speed
speed reducer mechanims 
the motor gear
... Continue reading "electricidad" »