SeÑalizacion Ccitt No.7 S12 (Tup - Isup)
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Questions and Answers
- 1.
Proporciona corrección de errores y funciones de control de flujo de información de manera que se tiene una transferencia de datos confiable.
- A.
CCITT
- B.
FISU
- C.
MTP
- D.
MSU
Correct Answer
C. MTPExplanation
MTP stands for Message Transfer Part, which is a protocol used in telecommunication networks to provide error correction and flow control functions for reliable data transfer. It ensures that data is transferred accurately and efficiently by detecting and correcting errors that may occur during transmission. MTP is commonly used in signaling systems, such as the Signaling System No. 7 (SS7), to ensure the reliable exchange of signaling messages between network elements.Rate this question:
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- 2.
Tu 80gEs el mensaje que se enviá cuando el abonado B cuelga primero
- A.
SAO
- B.
IAI
- C.
CLF
- D.
CBK
- E.
RLG
Correct Answer
D. CBKExplanation
The correct answer is CBK. This answer is likely correct because the question mentions a message being sent when subscriber B hangs up first. The letters SAO, IAI, CLF, and RLG do not seem to have any relevance to hanging up a call, while CBK could potentially stand for "Call B Kicked" or something similar, indicating that subscriber B ended the call.Rate this question:
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- 3.
Son unidades de relleno que se envían entre dos puntos de señalización.
- A.
SFU
- B.
LSSU
- C.
IAM
- D.
MSU
- E.
FISU
Correct Answer
E. FISUExplanation
FISU stands for "Fill-in Signaling Units" which are units of filler data that are sent between two signaling points. These units are used to maintain synchronization and proper flow of data between the two points.Rate this question:
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- 4.
Se utiliza para repartir el tráfico dentro de un grupo de enlaces de señalización. Se utilizan los cuatro bits menos significativos de CIC.
- A.
OPC
- B.
CIC
- C.
SLS
- D.
DPC
- E.
SIO
Correct Answer
C. SLSExplanation
SLS stands for Signaling Link Selection and it is used to distribute the traffic within a group of signaling links. The four least significant bits of the CIC (Channel Identification Code) are used for this purpose.Rate this question:
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- 5.
Indica el número de conexión de habla al cual pertenece la MSU.
- A.
DPC
- B.
CIC
- C.
SLS
- D.
SIO
- E.
OPC
Correct Answer
B. CICExplanation
The correct answer is CIC because CIC stands for Circuit Identification Code, which is a unique code assigned to each voice connection in a telecommunication network. The CIC is used to identify and route the voice call to the correct destination. Therefore, the MSU belongs to a specific CIC.Rate this question:
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- 6.
Se encarga de proporcionar las tareas DID (DESTDID), que es un apuntador en el cual se encuentran las tareas de labores entre dispositivos (atenuaciones, supresores de eco, modificación de dígitos, etc.)
- A.
LSIF
- B.
PATED
- C.
ASSS
- D.
TRA
- E.
TSIG
Correct Answer
B. PATEDExplanation
The correct answer is "PATED". The given explanation suggests that PATED is responsible for providing the tasks DID (DESTDID), which is a pointer that contains tasks related to device operations such as attenuations, echo suppressors, digit modifications, etc.Rate this question:
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- 7.
Es usada para llevar la información de señalización por las diversas partes de usuario.
- A.
SFU
- B.
IAM
- C.
FISU
- D.
LSSU
- E.
MSU
Correct Answer
E. MSUExplanation
The correct answer is MSU. MSU stands for Message Signaling Unit and is used to carry signaling information between different parts of a user.Rate this question:
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- 8.
Este módulo indica cuál es el módulo de troncales que manejará la llamada, y en el caso de troncales bidireccionales (caso N7), también indica el canal dentro del módulo de troncales.
- A.
SCSVL
- B.
STRA
- C.
SLSIP
- D.
SCM
- E.
OSCSVT
Correct Answer
B. STRAExplanation
This question is asking for the correct answer among the given options. The correct answer is "STRA" because the given explanation states that this module indicates which trunk module will handle the call and, in the case of bidirectional trunks, it also indicates the channel within the trunk module.Rate this question:
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- 9.
Son las partes que forman a una etiqueta de enrutamiento.
- A.
SSF, DPC Y OPC
- B.
DPC, OPC Y SIO
- C.
DPC, CIC Y SSF
- D.
CIC, OPC Y SLS
- E.
DPC, OPC YCIC
Correct Answer
E. DPC, OPC YCICExplanation
The correct answer is "DPC, OPC YCIC". These are the parts that form a routing label. DPC stands for Destination Point Code, OPC stands for Originating Point Code, and CIC stands for Circuit Identification Code. The routing label is used in telecommunication networks to determine the routing of a call or message.Rate this question:
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- 10.
Es un indicador incluido en el mensaje que identificará el tipo de usuario al cual está destinado el mensaje.
- A.
SIF
- B.
DPC
- C.
OPC
- D.
SIO
- E.
SSF
Correct Answer
A. SIFExplanation
The correct answer is SIF. SIF stands for Service Information Field, which is an indicator included in the message that identifies the type of user to whom the message is intended.Rate this question:
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- 11.
Es el código utilizado como bandera de inicio (FLAG) en cada mensaje y sirve para separar dichos mensajes.
- A.
11110000
- B.
01111100
- C.
01111110
- D.
00001111
- E.
11111110
Correct Answer
C. 01111110Explanation
This sequence of bits, 01111110, is commonly known as the "flag" in computer networking. It is used to mark the beginning and end of a message or frame. The flag is necessary to separate individual messages in a stream of data, allowing the receiver to properly identify and process each message. In this case, the flag 01111110 is used as the start and end marker for the messages being transmitted.Rate this question:
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- 12.
Campo que me permite identificar la troncal perteneciente a la ruta de señalización.
- A.
SIO
- B.
SSF
- C.
CIC
- D.
SLS
Correct Answer
C. CICExplanation
The correct answer is CIC. CIC stands for Circuit Identification Code, which is a field used in signaling systems to identify the trunk belonging to the signaling route. It helps in routing and managing signaling messages within the network. SIO (Service Information Octet), SSF (Subsystem Function), and SLS (Signaling Link Selection) are also fields used in signaling systems, but they do not specifically identify the trunk belonging to the signaling route.Rate this question:
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- 13.
Son descritas como un flujo continuo de bits en 64 Kb/s.
- A.
Unidades de señalización
- B.
PCM
- C.
CAS
- D.
MTP
- E.
Link set
Correct Answer
A. Unidades de señalizaciónExplanation
The correct answer is "Unidades de señalización". This is because the given statement describes them as a continuous flow of bits at 64 Kb/s. Unidades de señalización, also known as signaling units, are used in telecommunications to transmit control information between network elements. They are responsible for managing and controlling the signaling process, ensuring reliable communication between different parts of the network.Rate this question:
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- 14.
Este módulo, está dedicado a realizar las acciones referentes a los niveles restantes 2, 3 y 4, tales como: Prevención y detección de errores (nivel 2). Discriminación, distribución y parte del enrutamiento (nivel 3). Creación y recepción de mensajes para usuarios (nivel 4).
- A.
DTM
- B.
IPTM
- C.
SACEN7
- D.
SCM
Correct Answer
B. IPTMExplanation
The correct answer is IPTM because the given explanation states that this module is dedicated to performing actions related to levels 2, 3, and 4. Since IPTM is one of the options provided and it matches the description, it can be inferred that IPTM is the correct answer.Rate this question:
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- 15.
En conjunto forman un campo de 16 bits usado para los procedimientos de control de errores.
- A.
BSN, BIB, FSN, FIB
- B.
CIC, SLS, SIO
- C.
OPC, DPC, CRC
- D.
SLS, SSF, FIB, FSN
- E.
CRC, HO, H1
Correct Answer
A. BSN, BIB, FSN, FIBExplanation
The correct answer is BSN, BIB, FSN, FIB. These acronyms represent fields used for error control procedures. BSN stands for Base Station Number, which is used to identify the base station in a cellular network. BIB stands for Backward Indicator Bit, which indicates the direction of data transmission. FSN stands for Frame Sequence Number, which helps in identifying the order of frames. FIB stands for Forward Indicator Bit, which indicates the direction of data transmission. These fields collectively form a 16-bit field used for error control procedures.Rate this question:
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- 16.
Módulo que se encarga del control de la llamada, analiza el prefijo (o cadena de dígitos DGTSTR) y determina el enrutamiento.
- A.
SLSIP
- B.
SCM
- C.
IPTM
- D.
CCSM
- E.
SCSVL
Correct Answer
E. SCSVLExplanation
The correct answer is SCSVL. The given explanation states that the module is responsible for call control, analyzing the prefix or digit string, and determining the routing.Rate this question:
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- 17.
Permite activar la observación de una línea para observar el reporte RRN 0121
- A.
MODIFY-ORGDEP-TREE (DP 8640)
- B.
MODIFY-REPORT-ROUTING (DP 1153)
- C.
MODIFY-TRUNK (DP 135)
- D.
MODIFY-SINGLE-SUBSCR (DP 5290)
- E.
MODIFY-ABD-CODE (DP 138)
Correct Answer
D. MODIFY-SINGLE-SUBSCR (DP 5290)Explanation
The correct answer is MODIFY-SINGLE-SUBSCR (DP 5290). This option allows the activation of line observation to observe the RRN 0121 report.Rate this question:
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- 18.
Dentro del manejo de mensajes de señalización, estos son los campos que se analizan para localizar un enlace conveniente.
- A.
Indicador de red, Código de punto de destino y selector de enlace de señalización.
- B.
Código de punto de origen, Indicador de red y Selector de enlace de señalización.
- C.
Código de punto de destino, Indicador de red.
- D.
Código de punto de destino, Código de redundancia cíclica e Indicador de red.
Correct Answer
A. Indicador de red, Código de punto de destino y selector de enlace de señalización.Explanation
The fields that are analyzed to locate a suitable link within signal message management are the Indicador de red (network indicator), Código de punto de destino (destination point code), and selector de enlace de señalización (signaling link selector). These fields provide information about the network, destination, and the specific signaling link to be used for communication.Rate this question:
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- 19.
Es el módulo que realiza parte del nivel 3 (enrutamiento), ya que determina cuál enlace manejará la señalización de mensajes entre 2 centrales.
- A.
IPTM
- B.
HCCM
- C.
DTM
- D.
SACEN7
Correct Answer
D. SACEN7Explanation
SACEN7 is the correct answer because it is the module that handles part of level 3 (routing) in a telecommunications system. It is responsible for determining which link will handle the signaling of messages between two central stations.Rate this question:
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- 20.
Es el punto de señalización donde se genera un mensaje.
- A.
Punto de origen
- B.
Punto de destino
- C.
Punto de transferencia de señalización.
- D.
Punto de identificación.
Correct Answer
A. Punto de origenExplanation
The correct answer is "Punto de origen." This is because the given statement mentions that it is the signaling point where a message is generated. "Punto de origen" translates to "point of origin" in English, which aligns with the idea of where the message originates from.Rate this question:
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- 21.
Se utiliza solamente para la recepción de los tonos DTMF generados por el aparato del abonado y su traducción a dígitos legibles por el sistema, para determinar el destino de la llamada.
- A.
SCSVL
- B.
SCM
- C.
CCSM
- D.
SLSIP
- E.
IPTM
Correct Answer
B. SCMExplanation
The correct answer is SCM. SCM stands for Signaling Channel Module, which is used solely for receiving DTMF tones generated by the subscriber's device and translating them into readable digits for the system. It helps determine the destination of the call.Rate this question:
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- 22.
Es la especificación utilizada en TELMEX para interpretar los mensajes de señalización No. 7 para la parte de usuario ISUP.
- A.
Q.931
- B.
E.801.04
- C.
E.802.3
- D.
Q.970
- E.
E.211
Correct Answer
B. E.801.04 -
- 23.
Se encarga de proporcionar el Routing Code (RTCD) que es el número de bloque de rutas que manejará la llamada.
- A.
LSIF
- B.
PATED
- C.
TRA
- D.
TSIG
- E.
ASSS
Correct Answer
B. PATEDExplanation
The correct answer is PATED. PATED stands for "Proporcionar el Routing Code (RTCD)", which means "Provide the Routing Code (RTCD)" in English. The RTCD is the number of route blocks that will handle the call. Therefore, PATED is responsible for providing the necessary routing information for the call.Rate this question:
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- 24.
Este mensaje es usado para tomar la troncal y para enviar los dígitos iniciales del número de directorio.
- A.
IAM
- B.
SAM
- C.
IAI
- D.
SAO
Correct Answer
A. IAMExplanation
This message is used to establish the trunk and send the initial digits of the directory number.Rate this question:
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- 25.
Campos que forman la etiqueta telefónica.
- A.
DPC, OPC, CIC
- B.
DPC, SIO, CIC
- C.
DPC, SSF, OPC
- D.
CIC, OPC, CRC
Correct Answer
A. DPC, OPC, CICExplanation
The correct answer is DPC, OPC, CIC. These are the fields that form the telephone label. DPC stands for Destination Point Code, which identifies the destination of the call. OPC stands for Originating Point Code, which identifies the source of the call. CIC stands for Circuit Identification Code, which identifies the specific circuit or channel being used for the call. Together, these three fields are used to route and establish telephone connections.Rate this question:
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- 26.
Es el punto de señalización en el cual un mensaje es recibido a través de un enlace de señalización y posteriormente es transferido a otro enlace, sin intervención de las partes de usuario.
- A.
Punto de origen
- B.
Punto de destino
- C.
Punto de identificación
- D.
Punto de transferencia de señalización
Correct Answer
D. Punto de transferencia de señalizaciónExplanation
The correct answer is "Punto de transferencia de señalización" because it refers to the signaling point where a message is received through a signaling link and then transferred to another link without any intervention from the user parts.Rate this question:
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- 27.
Esta función está representada por los 7 bits mas significativos del CIC.
- A.
SLS
- B.
SIO
- C.
Troncal
- D.
DTM
- E.
SSF
Correct Answer
D. DTMExplanation
The 7 most significant bits of the CIC represent the DTM (Digital Trunk Module).Rate this question:
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- 28.
Trabaja como una unidad de adaptación entre el interface hacia el terminal y la línea de abonado digital.
- A.
MSM
- B.
NT
- C.
ISM
- D.
TE
Correct Answer
B. NTExplanation
NT stands for Network Termination. In the given context, it refers to a device or unit that serves as an interface between the terminal (such as a telephone or computer) and the digital subscriber line. The NT unit is responsible for adapting the signals between the interface and the digital line, ensuring proper communication and connectivity.Rate this question:
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- 29.
Tiene una longitud de 40 bits y desempeña funciones de la capa 3, es utilizada para el envío de mensajes y para repartir la carga.
- A.
Encabezado del mensaje
- B.
Campos obligatorios
- C.
Campos de indicadores
- D.
Etiqueta telefónica
Correct Answer
D. Etiqueta telefónicaExplanation
The correct answer is "Etiqueta telefónica". The given description mentions that it has a length of 40 bits and performs functions of layer 3. It is used for sending messages and load balancing. The term "Etiqueta telefónica" refers to a telephone label, which is a field used in telecommunications protocols to identify and route phone calls. It fits the given description and context of the question.Rate this question:
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- 30.
Módulo que proporciona los datos de clase de servicio del abonado.
- A.
SCSVT
- B.
STRA
- C.
SLSIP
- D.
SCM
- E.
SCSVL
Correct Answer
C. SLSIPExplanation
The given options are acronyms that represent different modules. The correct answer, SLSIP, is likely the module that provides the class of service data for the subscriber. The other options, SCSVT, STRA, SCM, and SCSVL, may represent different modules or functionalities within the system, but they are not specifically related to providing class of service data for the subscriber.Rate this question:
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- 31.
Son los parámetros que se requieren para identificar a una red lógica
- A.
OPC, SSF, LOGNET
- B.
DPC, SLS Y OPC
- C.
DPD, SSF, CIC
- D.
LOGNET, DPC, SIO
Correct Answer
A. OPC, SSF, LOGNETExplanation
These are the parameters that are required to identify a logical network. OPC stands for Originating Point Code, SSF stands for Subsystem Number, and LOGNET refers to Logical Network Number. These parameters help in establishing communication between different nodes within a network and are essential for routing and addressing purposes. DPC, SLS, OPC, DPD, SSF, CIC, and SIO are not directly related to identifying a logical network.Rate this question:
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- 32.
Es el protocolo del sistema se señalización No. 7 que proporciona las funciones de señalización necesarias para el servicio portador básico, asi como servicios suplementarios para aplicaciones de voz y no de voz en una red digital de servicios integrados.
- A.
TUP
- B.
ISUP
- C.
TCAP
- D.
OMUP
- E.
SCCP
Correct Answer
B. ISUPExplanation
ISUP stands for Integrated Services Digital Network User Part. It is a protocol within the Signaling System No. 7 (SS7) that provides the necessary signaling functions for the basic bearer service, as well as supplementary services for both voice and non-voice applications in an integrated digital services network. ISUP is responsible for call setup, maintenance, and tear-down in a telecommunication network. It ensures proper routing and signaling between different network elements to establish and control voice and data calls.Rate this question:
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- 33.
Es una colección de puntos de señalización que usan el mismo protocolo MTP, que comparten el mismo indicador de red y que lógicamente están juntos desde el punto de vista de un operador de red.
- A.
Red virtual
- B.
Red física
- C.
Red CCITT No. 7
- D.
Red lógica
Correct Answer
D. Red lógicaExplanation
A logical network is a collection of signaling points that use the same MTP protocol, share the same network indicator, and are logically grouped together from the perspective of a network operator. This means that these signaling points are interconnected and operate together as a cohesive unit within the network infrastructure.Rate this question:
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- 34.
Tipo de señalización que se utiliza entre centrales, cuando más de una central están implicadas en una llamada RDSI. Aquí el sistema de señalización se utiliza para repartir la información de control a todas las demás centrales implicadas
- A.
Red de señalizacion
- B.
Red Virtual
- C.
Señalizacion por canal comun No 7
- D.
Red Logica
Correct Answer
C. Señalizacion por canal comun No 7Explanation
Señalización por canal común No 7 es el tipo de señalización que se utiliza entre centrales cuando más de una central está implicada en una llamada RDSI. En este caso, el sistema de señalización se utiliza para repartir la información de control a todas las demás centrales implicadas.Rate this question:
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- 35.
Es una parte de las funciones de Red de señalización que consiste en un grupo de acciones de recuperación que forman parte de procedimientos específicos en caso de falla o congestión de tráfico
- A.
Administracion de la Red de Señalizacion
- B.
Punto de Transferencia de Señalizacion
- C.
Codigo de punto de Destico
- D.
Unidad de Señalizacion
Correct Answer
A. Administracion de la Red de SeñalizacionExplanation
The given correct answer is "Administracion de la Red de Señalizacion" (Signaling Network Management). This is because the provided statement describes a part of the functions of Signaling Network Management, which involves a group of recovery actions that are part of specific procedures in case of failure or traffic congestion.Rate this question:
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- 36.
Es una secuencia de verificación de trama (16 bits), contiene el resultado de un cálculo matemático realizado sobre la información misma
- A.
ISUP
- B.
DTM
- C.
SCM
- D.
CRC
Correct Answer
D. CRCExplanation
The given correct answer is CRC. CRC stands for Cyclic Redundancy Check. It is a sequence of a 16-bit frame verification that contains the result of a mathematical calculation performed on the information itself. This check is commonly used in data communication to detect errors in transmitted data. By comparing the calculated CRC value at the receiving end with the transmitted CRC value, any errors or alterations in the data can be detected.Rate this question:
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- 37.
Es un canal de comunicación en el que se pretende que sea transportada una amplia variedad de flujo de información digital entre un terminal y la central local RDSI en ambas direcciones.
- A.
H3
- B.
B
- C.
C
- D.
IAM
Correct Answer
B. BExplanation
The correct answer is B. IAM. IAM stands for Initial Address Message. In this context, it refers to the signaling message used in Integrated Services Digital Network (ISDN) to establish a connection between a terminal and the local exchange. The IAM message carries information about the called party's number and the type of service requested. It is a crucial component in setting up a communication channel for the transmission of various types of digital information between the terminal and the local RDSI central in both directions.Rate this question:
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- 38.
Parte que contiene el soporte necesario de señalización para los requerimientos de comunicación de la RDSI.
- A.
ISUP
- B.
OPC
- C.
SIO
- D.
CRC
Correct Answer
A. ISUPExplanation
ISUP stands for ISDN User Part, which is a signaling protocol used in ISDN networks. It provides the necessary signaling support for communication requirements in the ISDN. ISUP is responsible for the setup, maintenance, and tear-down of ISDN connections. It handles call control messages, such as call setup, call release, and call progress. ISUP ensures the proper routing and switching of ISDN calls across different network elements. Therefore, ISUP is the correct answer as it specifically deals with the signaling support required for communication in the ISDN.Rate this question:
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- 39.
Son los parámetros que contienen la ruta identificando las centrales donde la ruta se origina y donde termina
- A.
OPC, CIC
- B.
DPC, OPC
- C.
SSF, LOGNET
- D.
BSN, BIB
Correct Answer
B. DPC, OPCExplanation
The correct answer is DPC, OPC. The given parameters, DPC (Destination Point Code) and OPC (Originating Point Code), are used in telecommunication networks to identify the starting and ending points of a route. These codes are crucial for routing calls or messages between different network nodes.Rate this question:
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- 40.
Es la parte de las funciones de red de señalización que se encarga de enviar el mensaje al destino correcto
- A.
Administracion de la Red de Señalizacion
- B.
Transferencia de Señalizacion
- C.
Funcion de manejo de mensajes de señalizacion
- D.
Indicador de Red
Correct Answer
C. Funcion de manejo de mensajes de señalizacionExplanation
The correct answer is "Funcion de manejo de mensajes de señalización" because it refers to the part of the signaling network functions that is responsible for sending the message to the correct destination. It implies that this function handles the management and routing of signaling messages within the network.Rate this question:
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- 41.
Es el canal de señalización No 7 empleado en TELMEX
- A.
16
- B.
32
- C.
8
- D.
B3
Correct Answer
A. 16Explanation
The correct answer is 16 because the question is asking about the signaling channel No 7 used in TELMEX. The signaling channel No 7 is a common channel signaling system used in telecommunications networks, including TELMEX. It is used for signaling and control purposes, such as call setup, routing, and network management. Therefore, the correct answer is 16, which is the option that corresponds to the signaling channel No 7.Rate this question:
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- 42.
- Este mensaje es usado para tomar la troncal para enviar los dígitos del número de directorio de “B”, “A” y otros datos adicionales. Contiene la información necesaria para el establecimiento de la llamada
- A.
IIA
- B.
AII
- C.
IAA
- D.
IAI
Correct Answer
D. IAIExplanation
This answer is correct because the given message is used to transmit the directory number digits for "B", "A", and other additional data. It also contains the necessary information for establishing the call. The sequence "IAI" represents this information accurately.Rate this question:
- 43.
- Es un campo de 14 bits que identifica la central de cual provienen el mensaje
- A.
CRC
- B.
OPC
- C.
DPC
- D.
ISUP
Correct Answer
B. OPCExplanation
OPC stands for Originating Point Code. It is a 14-bit field that identifies the central office from which the message originates. This code helps in routing the message to the correct destination.Rate this question:
- 44.
Es un campo de 14 bits que identifica la central de cual provienen el mensaje
- A.
OPC
- B.
CLF
- C.
IAS
- D.
IA1
Correct Answer
A. OPCExplanation
The given answer "OPC" is the correct answer because it is stated in the question that "OPC" is a 14-bit field that identifies the central from which the message originates. This indicates that OPC is a unique identifier for the central and is used to differentiate messages coming from different centers.Rate this question:
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- 45.
Son los primeros 7 bytes en un mensaje ISUP
- A.
FTC
- B.
DTM
- C.
SIO
- D.
NT
Correct Answer
C. SIOExplanation
The given answer, SIO, is correct because it refers to the Signaling Information Octet, which is one of the first 7 bytes in an ISUP message. The Signaling Information Octet contains important information about the call, such as the circuit identification code, the nature of the call, and the status of the call. Therefore, SIO is the correct answer as it represents the first 7 bytes in an ISUP message.Rate this question:
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- 46.
Este mensaje es usado durante la fase de liberación y corresponderá con una señal de línea
- A.
CLF
- B.
FLC
- C.
LCF
- D.
CFL
Correct Answer
A. CLFExplanation
This message is used during the release phase and corresponds to a line signal. The correct order of the letters in the message is CLF.Rate this question:
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- 47.
Este mensaje es usado para mandar una confirmación hacia la central anterior de que el circuito de voz de la llamada ha sido liberado
- A.
SIO
- B.
OPC
- C.
RLG
- D.
DPC
Correct Answer
C. RLGExplanation
The correct answer is RLG. In the given context, RLG stands for "Release". This message is used to send a confirmation to the previous central that the voice circuit of the call has been released.Rate this question:
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Mar 22, 2023Quiz Edited by
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Aug 10, 2019Quiz Created by
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