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310-560 exam Dumps Source : Sun Certified Engineer for Sun One Directory Server 5.x
Test Code : 310-560
Test title : Sun Certified Engineer for Sun One Directory Server 5.x
Vendor title : SUN
: 173 actual Questions
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SUN Sun Certified Engineer for
KYOTO, Japan, Feb. 6, 2019 /PRNewswire/ -- wireless gadgets fitted with the fresh queer wireless conversation specification Wi-solar FAN (field locality community) for the web of things developed jointly through the research neighborhood of Professor Hiroshi Harada of the Graduate school of Informatics, Kyoto university (hereinafter Kyoto college), Nissin techniques Co., Ltd. (hereinafter Nissin techniques), and ROHM Co., Ltd. (hereinafter ROHM) grew to become one of the world's first options to achieve Wi-solar FAN certification.
BackgroundIn order to recognize out of doors communication networks similar to sensible cities and sane grids, superb, lengthy-distance and cozy community expertise is required. Wi-sun FAN is a brand fresh specification of Wi-solar, a world radio communications venture that's the premier desirable to the construction of IoTs. it is an interoperable communications networking manner for electrical energy, fuel, and water metering, in addition to for sane cities and smart grids in quite a few purposes such as infrastructure and bright transport techniques.
This Wi-sun FAN is an interoperable low-vigor IoT instant conversation expertise that utilizes low-vigor wireless transmission expertise in keeping with the IEEE 802.15.4g daily and multistage routing know-how according to IPv6. On may additionally 16, 2016, the Wi-solar Alliance, which certifies instant verbal exchange requisites for IoTs, technical compatibility, and interconnectivity, established habitual standards, and on November eleven, 2016, the three events introduced that they succeeded in simple radio tendencies suitable with Wi-solar FAN. The Wi-sun Alliance then announced its Wi-solar FAN certification program on October 3, 2018.
This achievementBased on the effects of the fundamental edifice of Wi-solar FAN, the three parties developed a radio compatible with Wi-sun FAN technical specifications and certification application, and passed an IP-based certification examine using multi-hop, frequency-hopping, and advanced certification protection by using a plurality of distinctive radios from distinctive corporations. This radio has prerogative here services as described in the Wi-solar FAN Technical standards.
actual layer and MAC layer corresponding to IEEE 802.15.four/4g/4e required for operation in Japan
Adaptation layer, network layer, and transport layer based with the aid of IETF corresponding to 6LowPAN and IPv6
Multi-hop verbal exchange system using RPL
RADIUS/AAA excessive-degree security
p>With the IEEE802.15.4/4g/4e applied sciences able to dependable transmission over 1km below the jap legislation, this radio is geared up with a world typical for cyber web entry, which has been added in Wi-Fi (TM) methods, and a multi-hop overseas regular that realizes multi-stage relay between radios in line with IP. This makes it handy to connect sensors, meters, and screens that originate up sensible cities and sane metering to the web.
This fulfillment was conducted within the Impulsing Paradigm alternate through Disruptive technologies software (have an repercussion on) led via the Council for Science, technology and Innovation, the cabinet office. This program was fashioned by means of a joint trade-academia consortium called the next-era Wi-solar Joint research Consortium, Kyoto. The three parties, based in Kyoto, are Kyoto school, which acquire a track checklist of standardization and construction of IEEE 802.15.four/4g/4e, Nissin programs, which commercializes Wi-solar-suitable communique middleware, and ROHM, which develops conversation modules suitable with the general.
define of certification acquisition:Date and time of certification acquisition: January 30, 2019Certification authority: Wi-sun AllianceCertified checking out laboratory: Allion Labs, Inc.Certification quantity: WSA 0171
Future developmentIn the longer term, the three events will participate in an interoperability specification verification adventure subsidized through the Wi-solar Alliance to contribute to checking out for technical conformity and interoperability of the Wi-sun FAN normal, and to promote extra construction as trade-academia cooperation tasks in Kyoto as a passage to locality in compel this radio in society. The outcomes acquire been additionally displayed on the Wi-sun Alliance sales space in DistribuTECH 2019, the greatest power business-connected adventure within the u.s., which become held in fresh Orleans on February 5.
further details are available at:http://www.dco.cce.i.kyoto-u.ac.jp/en/PL/PL_2019_01.html
View daily content material:http://www.prnewswire.com/news-releases/kyoto-university-teaming-with-2-jap-businesses-acquires-world-first-certification-for-wireless-conversation-specification-wi-sun-fan-300790447.html
source Kyoto school; Nissin systems Co., Ltd.; ROHM Co., Ltd.
Copyright (C) 2019 PR Newswire. bar not a bit rights reserved
No effect found, are trying fresh keyword!"requirements and interoperability are key to persevered growth for the IoT business," says Phil Beecher, President and CEO of the Wi-sun Alliance. "the supply of certified Wi-sun FAN solutions deli...
LIBERTY LAKE, Wash.--(business WIRE)--
Itron community machine Achieves Certification from Wi-sun Alliance for enormous-scale Industrial IoT Networks
Itron, Inc. (ITRI), which is innovating the passage utilities and cities maneuver energy and water, introduced these days the Itron Bridge 5-WS is without doubt one of the first items to receive Wi-sun field enviornment network (FAN) 1.0 certification. The Wi-sun Alliance granted certification to products in line with their compliance to the FAN communications profile and their skill to interoperate with other Wi-sun FAN certified products, as proven by using an unbiased third-party checking out laboratory. This requisite industry milestone is the effect of several years of extreme collaboration between many technology suppliers that encompass leadership with the aid of Itron.
In the identical approach the internet is purchasable to numerous makes and fashions of smartphones and computer systems, the Wi-solar FAN 1.0 benchmark makes it feasible for distinct industrial contraptions to interconnect onto typical, comfy, industrial-grade networks. The certification of the Itron gadget, with built-in Gen5 NIC hardware, suggests the Itron community platform is able to helping the Wi-solar FAN 1.0 specification. This NIC will likewise exist used in many different devices in an industrial IoT community.
“Itron along with different key Promoter participants of the Wi-sun Alliance including their long-time strategic accomplice Cisco acquire established their dedication to the construction and evolution of this ordinary expertise to create a very interoperable open community ecosystem,” observed Sharelynn Moore, senior vice president of Networked options at Itron. “we're blissful to exist among the first to obtain this preparatory certification.”
“Certification ensures interoperability, which is key to the boom of IoT innovation,” spoke of Phil Beecher, president and CEO of the Wi-sun Alliance. “we're blissful to formally certify this product.”
Itron makes it feasible for utilities and cities to soundly, securely and reliably deliver essential infrastructure features to communities in more than one hundred nations. Their portfolio of sensible networks, application, functions, meters and sensors helps their valued clientele more suitable manage electrical energy, fuel and water substances for the people they serve. with the aid of working with their consumers to exist certain their success, they assist ameliorate the exceptional of life, exist certain the protection and promote the neatly-being of hundreds of thousands of americans everywhere. Itron is dedicated to making a greater ingenious world. exist a Part of us: www.itron.com.
Itron® is a registered trademark of Itron, Inc. bar not a bit third-party emblems are property of their respective homeowners and any usage herein does not witness or imply any relationship between Itron and the third party unless expressly mentioned.
View source version on businesswire.com: https://www.businesswire.com/news/domestic/20190205005301/en/
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When they encounter a java.lang.OutOfMemoryError, they often find that Java mound dumps, along with other artifacts, are generated by the Java Virtual Machine. If you feel fancy jumping prerogative into a Java mound dump when you pick up a java.lang.OutOfMemoryError, don't worry, it's a daily thought. You may exist able to learn something serendipitously, but it's not always the best feeling to anatomize Java mound dumps, depending on the situation you are facing. They first exigency to investigate the root cause of the java.lang.OutOfMemoryError.
Only after the root cause is identified can they settle whether or not to anatomize Java mound dumps. What is a java.lang.OutOfMemoryError? Why in the world does it occur? Let's find out.
What Is a java.lang.OutOfMemoryError?A java.lang.OutOfMemoryError is a subclass of java.lang.VirtualMachineError that is thrown when the Java Virtual Machine is broken or has dash out of resources that are necessary to continue the operation of the Java Virtual Machine. Obviously, memory is the exhausted resource for a java.lang.OutOfMemoryError, which is thrown when the Java Virtual Machine cannot earmark an expostulate due to memory constraints. Unfortunately, the Java specification of java.lang.OutOfMemoryError does not complicated further on what benign of memory it's talking about.
There are six different types of runtime data areas, or memory areas, in the Java Virtual Machine (see figure 1).
Program Counter Register
Java Virtual Machine Stack
Runtime Constant Pool
Native manner Stack
The Program Counter Register, likewise known as the pc register, stores the address of the Java byte code instruction that is currently being executed (just fancy the processor register in your central processing unit of the device from which you are reading or printing this article). You will not view a java.lang.OutOfMemoryError from the pc register since a program counter is not conventionally considered as a memory.
Java Virtual Machine Stacks accommodate frames where data, recrudesce values, and partial execution results are stored. Java Virtual Machine Stacks can exist expanded during runtime. If there's not enough memory for the expansion of an existing Java Virtual Machine stack, or for the creation of a fresh Java Virtual Machine stack for a fresh thread, the Java Virtual Machine will pitch a java.lang.OutOfMemoryError.
The mound is where instances of Java classes and arrays are allocated. A java.lang.OutOfMemoryError will exist thrown when there is not enough memory available for instances of Java classes or arrays.
The manner locality stores class-related information, the runtime constant pool, for instances, the code for methods and constructors, and field/method data. If there's not enough memory in the manner area, you will encounter java.lang.OutOfMemoryError.
The Runtime Constant Pool contains constants such as field references and literals. A java.lang.OutOfMemoryError will exist thrown when not enough memory is available for the construction of the runtime constant pool area.
Native memory Stacks store conventional stacks, likewise known as C stacks, to champion indigenous methods that are written in a non-Java language such as C/C++. indigenous memory stacks can exist expanded during runtime. If there's not enough memory for the expansion of an existing indigenous memory stack or for the creation of a fresh indigenous memory stack for a fresh thread, you would view a java.lang.OutOfMemoryError.
You may acquire seen a java.lang.StackOverflowError, which is completely different from a java.lang.OutOfMemoryError. A java.lang.StackOverflowError is thrown when indigenous memory stacks or Java Virtual Machine stacks exigency more memory than is configured. In most IBM Java Virtual Machine implementations, the -Xmso command-line option controls the stack size for operation system threads or indigenous thread, and the -Xss command-line option controls the stack size for Java threads. In some implementations, such as Sun Microsystems HotSpot Java Virtual Machine, the Java methods share stack frames with C/C++ indigenous code. The maximum stack size for a thread can exist configured with the -Xss Java command-line option. The default sizes of these options vary by platform and implementation, but are usually between 256 Kbytes-1024 Kbytes. gratify advert to the documentation of your Java virtual machine for more specific information. They will cover more about java.lang.StackOverflowError in a divide article.
Now that they understand which memory areas could cause a java.lang.OutOfMemoryError, let's bewitch a stare at actual mistake messages. What does a java.lang.OutOfMemoryError stare fancy and how can I address each symptom? acquire you ever seen a java.lang.OutOfMemoryError similar to the following?
java.lang.OutOfMemoryError: Requested array size exceeds VM limit
This mistake message indicates that there is a memory request for an array but that's too great for a predefined circumscribe of a virtual machine. What conclude they conclude if they encounter this benign of java.lang.OutOfMemoryError? They exigency to check the source code to originate confident that there's no huge array created dynamically or statically. Fortunately, latest virtual machines usually conclude not acquire this limit.
java.lang.OutOfMemoryError: PermGen space
You will view an OutOfMemoryError when the Permanent Generation locality of the Java mound is full, fancy the above message.
On some Java Virtual Machines, such as Sun Microsystems' HotSpot Java Virtual Machine, a dedicated memory locality called permanent generation (or permanent region) stores objects that recount classes and methods. They can visualize the usage of a permanent generation with the IBM Pattern Modeling and Analysis utensil for the Java Garbage Collector.
In figure 2 they enabled the "Max Perm" button and the "Used Tenured" button to visualize permanent generation usage and its maximum size. They can view that the used amount of permanent generation reaches its maximum limit. That's why we're getting the java.lang.OutOfMemoryError: PermGen space message. If there's no memory leak, they can just expend the -XX:MaxPermSize command-line option to extend the maximum circumscribe of the permanent generation. For example,
will set the maximum size of the permanent generation to 128 Mbytes.
So far we've seen a Java.lang.OutOfMemoryError due to exhaustion in the Java mound or an locality in the Java mound such as permanent generation. Surprisingly, a Java.lang.OutOfMemoryError can exist thrown when the Java Virtual Machine cannot find any more memory in the indigenous memory as well as in the Java heap. How can they recount whether it's caused by the Java mound or indigenous memory?
In the following message, there's no information in the message whether java.lang.OutOfMemoryError is caused by the Java mound or indigenous memory:
JVMDUMP013I Processed dump event "systhrow", detail "java/lang/OutOfMemoryError".
In the following case, the Java virtual machine is benign enough to recount us that there's indigenous memory exhaustion. In the message, the Java virtual machine says "allocateMemory failed" which means a indigenous memory allocation failed:
java.lang.OutOfMemoryError: JVMCI046: allocateMemory failed
In the following message, there's no clue as to whether it's indigenous memory or a Java heap. Fortunately they acquire a line number, 20, and the source code file name, HeapExhaustionSimulator.java. This might exist Java mound related.
JVMDG274: Dump Handler has Processed OutOfMemory.Exception in thread "main" java.lang.OutOfMemoryErrorat HeapExhaustionSimulator.main(HeapExhaustionSimulator.java:20)
In the following message, there's no clue whether it's indigenous memory or a Java heap. But "sun.misc.Unsafe.allocateMemory(Native Method)" indicates that it might exist indigenous memory related.
Exception in thread "main" java.lang.OutOfMemoryErrorat sun.misc.Unsafe.allocateMemory(Native Method)at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:99)at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:288)at NativeMemorySimulator.main(NativeMemorySimulator.java:11)
In the following message, the Java Virtual Machine indicates that the Java mound space is related to the java.lang.OutOfMemoryError.
java.lang.OutOfMemoryError: Java mound spaceDumping mound to java_pid6280.hprof ...Heap dump file created [50549348 bytes in 1.444 secs]
You may acquire seen a java.lang.OutOfMemoryError similar to the following:
java.lang.OutOfMemoryError: requested NNN bytes for MMMM. Out of swap space?
Literally you could check the operating system configuration for swap space. It seems that the Java Virtual Machine is not confident if the swap space is the root cause of the problem (?).We can check whether this Java Virtual Machine is consuming too much indigenous memory .We likewise exigency to originate confident there's enough memory for this JVM and no other processes are consuming most of memory resource. The eventual thing they can try is to find any known defects related to the module, MMMM.
java.lang.OutOfMemoryError: unable to create fresh indigenous thread
This benign of message is seen when you acquire an extreme number of threads or if the indigenous memory is exhausted and a thread is attempting to exist created.
What Is a Java mound Dump?We've scholarly that a Java mound is a runtime data locality where bar not a bit class instances and arrays are allocated and shared among bar not a bit Java Virtual Machine threads during execution of the JVM. A Java mound dump is a snapshot of a Java mound at a specific time. It's fancy taking a picture of a sedulous warehouse at a given time. If they stare at the picture, they can identify what items were available at that time. Some items may exist shipped to Canada a few minutes later, but you can view them in the picture because they were there at the time of the snapshot.
Because the Java specification does not mention the Java mound dump, there are different forms of Java mound dump implementations from different Java Virtual Machines. The IBM Java mound dump provides information mostly about the Java heap.
The Sun Microsystems hprof Java mound dump provides information about the Java Virtual Machine stacks, the runtime constant pool as well as the Java heap.
How Can I Generate Java mound Dumps?A Java mound dump is usually automatically generated by the Java Virtual Machine, but you can likewise compel Java mound dump generation. On most IBM Java Virtual Machines, Java mound dumps are generated automatically when the Java mound becomes exhausted. On most Sun Microsystems JVMs, you exigency to configure the virtual machine to generate Java mound dumps. If you want to generate a Java mound dump when a java.lang.OutOfMemoryError occurs, you exigency to set the -XX:+HeapDumpOnOutOfMemoryError command-line option on certain releases of Sun's JVM. You could likewise expend a HPROF profiler by using the -agentlib:hprof=heap=dump command-line option. You could likewise expend jmap if your Sun JVM provides the utility. For example, jmap -dump 1234 will generate the Java mound dump from the process whose identifier is 1234. You could utilize JConsole by calling the HotSpotDiagnostic MBean and the dumpHeap operation if it's available from your Sun JVM.
If you want to generate Java mound dumps for Java virtual machine crashes (an unexpected termination of process) or user signals on IBM JVMs, you can set the environment variable IBM_HEAPDUMP or IBM_HEAP_DUMP to TRUE. For example, you can send the IBM Java virtual machine the signal SIGQUIT for the Linux operating systems and AIX operating systems or SIGINT(Control-Break key combination) for Windows to generate Java mound dumps. The IBM JVM provides an API, com.ibm.jvm.Dump.HeapDump(), that you can invoke from application code to generate Java mound dumps programmatically.
Please advert to the documentation of your JVM for minute information since these options vary by platform and implementation.
Where Can I Find Java mound Dumps?You can find Java mound dumps in the current working directory of the Java Virtual Machine process, unless you specify a different location. You can specify the location with the environment variable IBM_HEAPDUMPDIR or _CEE_DMPTARG on IBM JVMs. If there's not enough space available for Java mound dumps or the JVM cannot acquire write-permission in the location, Java mound dumps are generated to the operating system's temporary directory on the IBM JVM. gratify advert to your operating system manual for the location of the system's temporary directory and its configuration.
What conclude Java mound Dumps stare fancy and How Can I read Them?Nowadays, the majority of Java mound dump formats are generated in binary. Thus you might want to expend a utensil unless your brain can interpret hexadecimal codes without any headaches.
The IBM HeapAnalyzer is one of the most approved Java mound analysis tools. It can anatomize bar not a bit Java mound dump formats provided by Sun, HP and most of the Java mound dump formats provided by IBM. It's powered by expostulate query engines and patent-pending heuristic analysis engines. I've been developing the IBM HeapAnalyzer from scratch since 2003, spending my vacation, weekends and weeknights on it. The IBM HeapAnalyzer was so successful that IBM decided to originate the IBM HeapAnalyzer an official IBM software product and bundle it with existing products. So I donated bar not a bit the source code of IBM HeapAnalyzer to IBM to dash it on an Eclipse-based interface. Now the IBM HeapAnalyzer has a daughter, MDD4J, which always reminds me of my late daughter lost while I was working on the MDD4J project. The IBM HeapAnalyzer has been the top technology at IBM alphaWorks for six consecutive years since its inception as of March 2009.
Whether your Java mound dump is in binary or text/ascii format, the mound dump contains information about bar not a bit the live objects that are on the Java mound such as address, expostulate size, and referenced addresses. Let's bewitch a stare at the text/ascii format Java mound dumps since binary mound dumps acquire similar information but are in hexadecimal format to redeem disk space.
This article describes how to implement SQL-like triggers in a Sun Java System Directory Server. The instance scenario shows how to extend the server using the Plug-in API. This article is primarily directed at expert developers and architects who want to understand issues related to developing and deploying the Sun Java System Directory Server extension, implemented with plug-ins and extended operations.
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This article describes how to implement SQL-like triggers in a Sun JavaTM System Directory Server. The instance scenario shows how to extend the server using the Plug-in API. This article is primarily directed at expert developers and architects who want to understand issues related to developing and deploying the Sun Java System Directory Server extension, implemented with plug-ins and extended operations.
This article contains the following topics:
"Considering Purpose and Design"
"Implementing a Solution"
"Testing the Code"
"Using LDAP Triggers in Production Environments"
"About the Author"
"Ordering Sun Documents"
"Accessing Sun Documentation Online"
Employing triggers on database servers is useful when you exigency to define actions based on user operations or events. Through triggers, you can enforce rules such as: "when this table changes, conclude this," "before my data is deleted, conclude this other action," "when the user logs in/or updates some special record," and so on.
For example, the Customer confidence System (which only knows of its own database, most often an Oracle database) deletes a customer record in the database after the customer unsubscribes from services or terminates a contract. Using triggers, you can implement an application to remove any track of customer data from the Sun Java System Directory Servers. Generally speaking, through triggers you can reflect modifications on a central database to other data repositories, which acquire a copy of the data and must exist kept in sync with main database. This is what the Sun Java System Meta-Directory does to retain track of changes in an ORACLE database; to capture changes on the Sun Java System Directory Server, however, Sun Java System Meta-Directory uses a different mechanism called changelog.
Unfortunately, LDAP lacks a benchmark mechanism to recount the LDAP server to trigger an action based on a user's operation. Sun Java System Directory Server 5.x has features that allow you to trigger an action using pre- and post-operation plug-ins. However, the server simply calls your plug-in function when a data operation of the benign you registered your plug-in for either happens or is going to happen. The repose is your implementation.
The code instance presented in this article not only uses pre- and post- operation plug-ins, but takes it further by showing LDAP administrators how to create and maneuver triggers in a SQL style, using SQL-like instructions. To implement this eventual feature, you exigency the following, in addition to the pre- and post- plug-ins:
The language specification is required at compilation time for the parser generator to generate the parser itself. The parser is a module of generated C code that they embed into the extended operation function. The extended operation is required to allow users, through a client application, to submit their trigger commands to the Sun Java System Directory Server.
The code instance is based on the Sun Java System Directory Server 5.2 (the newest release), and is based on UNIX® platforms. (The parser generator is available on most UNIX platforms.)
For an instance of plug-in development, advert to the Sun BluePrintsTM OnLine article titled "Writing an Authentication Plug-in for a Sun ONE Directory Server."
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Editor's note: Patch cannot guarantee that these jobs will quiet exist available when you apply. They conclude not endorse or recommend these jobs. gratify conclude your own research about any potential employer.
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