Today's topic settles down because it is really underlaying problems somehow and seems not to make a mistake in the problem sentence in seem a fairly old ....TCP/IP.. have it.. problem when reading. The material today then ..a Japanese problem it.. is [kochira] ↓↓.
■TCP/IP
Internet Protocol address of IPv6 is composed of 128 bits, and a vast address space can be used compared with Ipv4, and the unicast address, the multicast address, and the anycast address are allocated in use additionally.
These sentences are correct.
- The unicast multicast anycast can be used by IPv6's being composed of 128 bits.
The private address is defined only by the address space of class C though Internet Protocol address of Ipv4 uses the address area that was composed of 32 bits, and classified into class E by use by class A.
These sentences are wrong.
- The private address is class A?. It is defined in each address space of C.
- It is basic.
ICMP has the function etc. that carry error message and various demands/response message when the error occurs by the data transfer with the IP packet. The Ping command uses echo request/response message among various messages of this ICMP.
These sentences are correct.
- The state as it is｡｡
TCP is a protocol to the communication of the connection type used for UDP to communicate a connectionless type. Therefore, when reliability is requested from the data transfer, TCP is suitable, and when a good communication of the transfer efficiency is requested, UDP is suitable.
These sentences are correct.
- Natural. ｡｡
It is not when having already explained somehow. It thinks sentences of 1･3･4 to be correct when settling down and reading, and understand sentences of two. Isn't there private address without [wake] only of class C?It is [] feeling. It doesn't go easily because of this though it is good when it is laced that chief telecommunications engineer's problem occasionally is also easy ..so... ｡｡Then, around here though it is short today
2010/08/31
2010/08/30
H.323 is confusing.
Well, because it is necessary to pass the subject of a transmission exchange and a natural plant management when it will pass the chief telecommunications engineer though this blog is being published around the material of "Exchange" of the specialized subject now though thought the lack in the article before the chief telecommunications engineer (transmission exchange) is studied today, well, and because the problem of the specialized subject like transmission, the exchange, and the data communication, etc. is set here and there ..the transmission exchange and the plant management.., it sleeps and, then, today's material is [kochira] ↓↓ of ･･･ well though thought that the topic of "Transmission exchange and plant management" and "Regulations" sooner or later is published. it is necessary to do study of the exchange of everyone after all
- Protocol of H.323
The H.225.0RAS control is a protocol used between the H.323 end point and the H.323 gateway.
These sentences are wrong.
- The H.225.0RAS control is a protocol used between the H.323 terminal and H.323 [ge-toki-pa].
- "Gateway" of sentences of the problem is unrelated. because of regulations of "Address resolution", "Registration of the end point", and "Communication permission", etc. by the H.225.0RAS control by "Between the terminal and [ge-toki-pa]"
- "Registration, permission, and state" is roughly the meanings as it is because "RAS" is " R egistration, A dmission, S tatus", and I think fortune-telling [ito] to be an imagination as for other party's of "Caller's telephone number and the relation with Internet Protocol address, etc. are managed" [ge-toki-pa] protocol it.
The H.323 end point acquires Internet Protocol address of connected other party terminal by the H.225.0RAS control procedure, and registers user ID and address information etc. on the H.323 end point.
These sentences are correct.
- Sentences above are understood and ..dripping.. [dai] is strong.
- Internet Protocol address of H225.0RAS = other party of connection terminal is acquired, and user ID and address information etc. on H and 323 end points are registered.
After calling establishing [no], the protocol that does making to the packet and the packet forwarding when the voice data and the image data between H.323 end points are transmitted is H.245 control.
These sentences are wrong.
- After calling establishing [no], the protocol that does making to the packet and the packet forwarding when the voice data and the image data between H.323 end points are transmitted is H.324 control.
- H.324 is a video conferencing telephone standard in the cellular phone network, and it is unrelated to H.323.
- H.245 exchanges information of opening and shutting of the logical channel who transports a code, a flow control, jitter management, a set demand, and the media stream as various information necessary for the multimedia communication. The transmission and the reception are separately defined, and offer the means to transmit above-mentioned detailed information to other H.323 support equipment.
The protocol of the H.245 control and the H.225.0RAS control is forwarded by the TCP protocol that has the function etc. of sending again of data.
These sentences are wrong.
- The protocol of the H.245 control and the H.225.0RAS control is forwarded by the TCP protocol that has the call out system management etc.
- This "TCP protocol that has the call out system management etc." [Tteno] is ..H.225.0.. [yosei] though it becomes on if sentences of the problem are correct and it mends.
- [Anmari] doesn't relate to [de] and "Function of sending again of data" [tteno].
Well, it is the sleep of this material ..H.323 it.. ..difficult of the problem related to H.323.. ･･･ Remembering is what because it has divided Confusing, and "It is H.xxx to be used between xx and xx" very in detail because the name of "H.323" "H.245" "H.225" or the protocol looks like ..the desire.. very. It might be easy to remember when the sequence chart of my own way is made when studying and it brings it together systematically. Then, it is please ↓↓ as for the material of another one H.323.
- System that achieves communication by protocol of H.323
The H.323 terminal is a device that the user uses to do a real-time voice transmission, the image transmission, and the data communication.
These sentences are correct.
- ..floatage.. ?As for [n] and "XXX terminal", does the user use and [rutte] protocol isn't so?
The H.323 gateway has the voice and the transducer function of the form of the transmission of information on the image needed to communicate between the H.323 terminal and the terminal of an existing line switching network like the telephone network etc.
These sentences are correct.
- The voice and the transducer function of the form of the transmission of information on the image are done, and the gateway is needed to communicate between terminals of an existing line switching network like the telephone network etc.
H.323MCU has a broadcast function etc. necessary to achieve the multi point communication (communication done with three terminals or more).
These sentences are correct.
- MCU communicates a multi point.
"Japanese problem" does the nature in the H.323 problem that is certainly difficult and not remembered easily if it often reads. If which protocol is remembered what work to be being done in faint, does this problem have what in it makes a mistake?Well, it is not study only to solve the problem and it is the examination measures to prepare the table, and to make the study tool that understands easily in the in one's own way. Then, around here today
- Protocol of H.323
The H.225.0RAS control is a protocol used between the H.323 end point and the H.323 gateway.
These sentences are wrong.
- The H.225.0RAS control is a protocol used between the H.323 terminal and H.323 [ge-toki-pa].
- "Gateway" of sentences of the problem is unrelated. because of regulations of "Address resolution", "Registration of the end point", and "Communication permission", etc. by the H.225.0RAS control by "Between the terminal and [ge-toki-pa]"
- "Registration, permission, and state" is roughly the meanings as it is because "RAS" is " R egistration, A dmission, S tatus", and I think fortune-telling [ito] to be an imagination as for other party's of "Caller's telephone number and the relation with Internet Protocol address, etc. are managed" [ge-toki-pa] protocol it.
The H.323 end point acquires Internet Protocol address of connected other party terminal by the H.225.0RAS control procedure, and registers user ID and address information etc. on the H.323 end point.
These sentences are correct.
- Sentences above are understood and ..dripping.. [dai] is strong.
- Internet Protocol address of H225.0RAS = other party of connection terminal is acquired, and user ID and address information etc. on H and 323 end points are registered.
After calling establishing [no], the protocol that does making to the packet and the packet forwarding when the voice data and the image data between H.323 end points are transmitted is H.245 control.
These sentences are wrong.
- After calling establishing [no], the protocol that does making to the packet and the packet forwarding when the voice data and the image data between H.323 end points are transmitted is H.324 control.
- H.324 is a video conferencing telephone standard in the cellular phone network, and it is unrelated to H.323.
- H.245 exchanges information of opening and shutting of the logical channel who transports a code, a flow control, jitter management, a set demand, and the media stream as various information necessary for the multimedia communication. The transmission and the reception are separately defined, and offer the means to transmit above-mentioned detailed information to other H.323 support equipment.
The protocol of the H.245 control and the H.225.0RAS control is forwarded by the TCP protocol that has the function etc. of sending again of data.
These sentences are wrong.
- The protocol of the H.245 control and the H.225.0RAS control is forwarded by the TCP protocol that has the call out system management etc.
- This "TCP protocol that has the call out system management etc." [Tteno] is ..H.225.0.. [yosei] though it becomes on if sentences of the problem are correct and it mends.
- [Anmari] doesn't relate to [de] and "Function of sending again of data" [tteno].
Well, it is the sleep of this material ..H.323 it.. ..difficult of the problem related to H.323.. ･･･ Remembering is what because it has divided Confusing, and "It is H.xxx to be used between xx and xx" very in detail because the name of "H.323" "H.245" "H.225" or the protocol looks like ..the desire.. very. It might be easy to remember when the sequence chart of my own way is made when studying and it brings it together systematically. Then, it is please ↓↓ as for the material of another one H.323.
- System that achieves communication by protocol of H.323
The H.323 terminal is a device that the user uses to do a real-time voice transmission, the image transmission, and the data communication.
These sentences are correct.
- ..floatage.. ?As for [n] and "XXX terminal", does the user use and [rutte] protocol isn't so?
The H.323 gateway has the voice and the transducer function of the form of the transmission of information on the image needed to communicate between the H.323 terminal and the terminal of an existing line switching network like the telephone network etc.
These sentences are correct.
- The voice and the transducer function of the form of the transmission of information on the image are done, and the gateway is needed to communicate between terminals of an existing line switching network like the telephone network etc.
H.323MCU has a broadcast function etc. necessary to achieve the multi point communication (communication done with three terminals or more).
These sentences are correct.
- MCU communicates a multi point.
"Japanese problem" does the nature in the H.323 problem that is certainly difficult and not remembered easily if it often reads. If which protocol is remembered what work to be being done in faint, does this problem have what in it makes a mistake?Well, it is not study only to solve the problem and it is the examination measures to prepare the table, and to make the study tool that understands easily in the in one's own way. Then, around here today
2010/08/29
Because of the transmission exchange telecommunication chief engineer
Well, I think that the knowledge of "Transmission" or "Exchange" is still important because of the transmission exchange telecommunication chief engineer though the chief telecommunications engineer is studied as usual today. The material of the switchboard system is published today because of saying. Then, today's material is ↓↓.
- Digital switchboard for telephone
In the software of a digital switchboard for the telephone, priority is set to each program to execute various processing efficiently, and the execution control form corresponding to the character is taken in real time.
- The software of a digital switchboard sets priority to the program, and takes the execution control form corresponding to the character in real time.
【 emergency 】The one to interrupt processing even if there is a program under execution, and to execute the breakdown processing, and as for the level control, information on the processing of the program that interrupts while executing it is saved in a specific memory area, and, besides, will wait for the restart of processing when 【 abnormality 】 of the system like the breakdown etc. is detected.
- Information on the processing of the program that interrupts while interrupting processing even if there is a program under execution, executing the breakdown processing, and executing it is saved in a specific memory area, and, besides, waits for the restart of processing when 【 abnormality 】 of the system like 【 emergency 】 level control = breakdown etc. is detected.
The clock level control in real time secures the character for 【 periodic 】 by starting the program in the form that controls the program that needs accurate timing.
- The character is in real time secured for 【 periodic 】 by starting the program in the form that controls the program that needs timing clock level control = accurate.
Base..level..control..in real time..character..restriction..gradual..program..control..form..service..analysis..processing..number..translation..processing..system..very..need..call processing program..maintenance..operation..related to..program..start..use.
- When it is a form that controls the program that the restriction of the character is base level control = in real time gradual, and the call processing program that doesn't need the system between very much and the program related to the maintenance operation is started, it uses it.
It asks and one [no] has been published up to now in the past how many days it, and which sentences are mistakes, and is it correct or does : by the memory point?It is "Fill-in-the-blank question" this time though publishesThe part of left 【XXX】 is actually set as making up in the past and because it is a thing, it takes care. The part that shows a loss on the right side classifies the part that I felt personal "It is important", and refer, please. Then, the following : the material that judges the corrections of sentences please up to now.
- Start of program in base level control
The program that controls the start of each program in what order it is necessary to start the program of the base level is called a driving management program.
These sentences are wrong.
- It is composed that it is an operating sushi stem (execution management) in which order that manages the schedule whether start by the program, it calls, confronts the program group that corresponds respectively in each division [sareta] [yoshori] and which timing of these [ni] ..the arbitrary occurrence.., and so as not to ruin it, a real-time character is devised.
- is division, and no "Driving management program. " perhaps. "Executive control program"
When all the processing of the program at the clock level ends, the program at the base level is started.
These sentences are correct.
- Naturally, after all the processing of the clock level ends, the processing of the base level is executed. 。。
The program at the base level is executed in the specification order by succession from the program of the clock level.
These sentences are wrong.
- Work at the clock level that it is interrupted at each constant period (The example: 8ms) and the emergency degree is high is made to intervene it though central controller (CC:Central Control) that works and controls the switchboard with software is usually working at a gradual base level of the time restriction. This is called a clock interruption. A central controller moves at the base level when all work at the clock level ends and is processing work. The result is brought together on the way of work when the constant period passes before work at the base level ends and the work that interrupts at the base level at the next cycle is drawn out after it interrupts, and it works at the clock level and it restarts.
- Program of clock level is made to interrupt by priority, and because only work at base level is restarted when everything is ended when it ends all by processing work at clock level, and "Succession from clock level" is not done separately during base level work though cannot it able not to have been so significant and to know sentences aboveIt is "The work that I was interrupting is succeeded. " if it dares to say.
Well, it is a topic of the switchboard this time. It is not a problem of worrying so much when the priority level at the clock level and the base level is neatly understood. How what is as of now though the rate of setting questions of the problem of the operating system of such a switchboard was high in old times?Because it is "Transmission exchange telecommunication chief engineer" as said even at the beginning still, I will remember as one respondent knowledge though I cannot say indescribably because the problem collection in recent years doesn't look over at all. Then, around here today.
- Digital switchboard for telephone
In the software of a digital switchboard for the telephone, priority is set to each program to execute various processing efficiently, and the execution control form corresponding to the character is taken in real time.
- The software of a digital switchboard sets priority to the program, and takes the execution control form corresponding to the character in real time.
【 emergency 】The one to interrupt processing even if there is a program under execution, and to execute the breakdown processing, and as for the level control, information on the processing of the program that interrupts while executing it is saved in a specific memory area, and, besides, will wait for the restart of processing when 【 abnormality 】 of the system like the breakdown etc. is detected.
- Information on the processing of the program that interrupts while interrupting processing even if there is a program under execution, executing the breakdown processing, and executing it is saved in a specific memory area, and, besides, waits for the restart of processing when 【 abnormality 】 of the system like 【 emergency 】 level control = breakdown etc. is detected.
The clock level control in real time secures the character for 【 periodic 】 by starting the program in the form that controls the program that needs accurate timing.
- The character is in real time secured for 【 periodic 】 by starting the program in the form that controls the program that needs timing clock level control = accurate.
Base..level..control..in real time..character..restriction..gradual..program..control..form..service..analysis..processing..number..translation..processing..system..very..need..call processing program..maintenance..operation..related to..program..start..use.
- When it is a form that controls the program that the restriction of the character is base level control = in real time gradual, and the call processing program that doesn't need the system between very much and the program related to the maintenance operation is started, it uses it.
It asks and one [no] has been published up to now in the past how many days it, and which sentences are mistakes, and is it correct or does : by the memory point?It is "Fill-in-the-blank question" this time though publishesThe part of left 【XXX】 is actually set as making up in the past and because it is a thing, it takes care. The part that shows a loss on the right side classifies the part that I felt personal "It is important", and refer, please. Then, the following : the material that judges the corrections of sentences please up to now.
- Start of program in base level control
The program that controls the start of each program in what order it is necessary to start the program of the base level is called a driving management program.
These sentences are wrong.
- It is composed that it is an operating sushi stem (execution management) in which order that manages the schedule whether start by the program, it calls, confronts the program group that corresponds respectively in each division [sareta] [yoshori] and which timing of these [ni] ..the arbitrary occurrence.., and so as not to ruin it, a real-time character is devised.
- is division, and no "Driving management program. " perhaps. "Executive control program"
When all the processing of the program at the clock level ends, the program at the base level is started.
These sentences are correct.
- Naturally, after all the processing of the clock level ends, the processing of the base level is executed. 。。
The program at the base level is executed in the specification order by succession from the program of the clock level.
These sentences are wrong.
- Work at the clock level that it is interrupted at each constant period (The example: 8ms) and the emergency degree is high is made to intervene it though central controller (CC:Central Control) that works and controls the switchboard with software is usually working at a gradual base level of the time restriction. This is called a clock interruption. A central controller moves at the base level when all work at the clock level ends and is processing work. The result is brought together on the way of work when the constant period passes before work at the base level ends and the work that interrupts at the base level at the next cycle is drawn out after it interrupts, and it works at the clock level and it restarts.
- Program of clock level is made to interrupt by priority, and because only work at base level is restarted when everything is ended when it ends all by processing work at clock level, and "Succession from clock level" is not done separately during base level work though cannot it able not to have been so significant and to know sentences aboveIt is "The work that I was interrupting is succeeded. " if it dares to say.
Well, it is a topic of the switchboard this time. It is not a problem of worrying so much when the priority level at the clock level and the base level is neatly understood. How what is as of now though the rate of setting questions of the problem of the operating system of such a switchboard was high in old times?Because it is "Transmission exchange telecommunication chief engineer" as said even at the beginning still, I will remember as one respondent knowledge though I cannot say indescribably because the problem collection in recent years doesn't look over at all. Then, around here today.
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