If an operating system permits shared resources such as memory to be used sequentially by multiple users/application or subjects without a refresh of the objects/memory area, what security problem is most likely to exist? 如果操作系统允许共享资源，内存顺序使用无刷新的对象/存储区由多个用户/应用程序或主题，什么是最可能存在的安全问题？（）A、disclosure of residual data. 残余数据的披露B、unauthorized obtaining of a privileged execution state. 取得未经授权的特权执行。C、data leakage through covert channels. 通过秘密渠道的数据泄漏D、denial of service through a deadly embrace. 拒绝服务攻击通过一个致命的死锁
If an operating system permits shared resources such as memory to be used sequentially by multiple users/application or subjects without a refresh of the objects/memory area, what security problem is most likely to exist? 如果操作系统允许共享资源，内存顺序使用无刷新的对象/存储区由多个用户/应用程序或主题，什么是最可能存在的安全问题？（）
- A、disclosure of residual data. 残余数据的披露
- B、unauthorized obtaining of a privileged execution state. 取得未经授权的特权执行。
- C、data leakage through covert channels. 通过秘密渠道的数据泄漏
- D、denial of service through a deadly embrace. 拒绝服务攻击通过一个致命的死锁
相关考题：
A Ezonexam router boots up in ROMMON mode. What is ROM Monitor (ROMMON)?A. A memory component for storing the saved configuration fileB. A memory management toolC. An operating system used for hardware troubleshooting and for password recoveryD. Temporary storage space for the router operating filesE. The source of the primary Cisco IOS software imageF. None of the above
When Bob, a technician, powers up a desktop PC, the unit will repeat three short beeps and will not POST. Which of the following is MOST likely the problem?() A. The memory is failing.B. The CPU is overheating.C. The hard drive is not attached properly.D. The operating system is not installed.
Memory utilization by the print spooler process is constantly climbing after users begin to print to a certain type of printer. Which of the following is the MOST likely cause of the problem?() A. Corrupted print spooler softwareB. Memory leak in one of the print driversC. The disk drive is out of free spaceD. Memory leak in the print spooler
Memory was recently taken out of a fully functional production server before it wasdecommissioned and added to another server. Upon booting up the server with the additional memory the server emits a series of beeps and fails to POST. Which of the following is MOST likely the problem？（）A、Incompatible memoryB、Memory failureC、The memory is not configuredD、The server BIOS was not configured to accept the additional memory
When Bob, a technician, powers up a desktop PC, the unit will repeat three short beeps and will not POST. Which of the following is MOST likely the problem?（）A、The memory is failing.B、The CPU is overheating.C、The hard drive is not attached properly.D、The operating system is not installed.
A customer has multiple application servers which create one process for each connected user. All users share the same AIX environment. What is a benefit of using WPARs in this environment？（）A、WPARs give more controls for resource management than the traditional AIX operating system tools.B、WPARs support Live Application Mobility which can be used to balance user processes acrosssystems.C、WPARs each have a copy of the AIX kernel， offering better availability than a system without WPARs.D、WPARs provide the ability to apply fixes specific for each environment， enabling the customer to create specialized application servers.
A customer has an 8-way p650 running an application for about 200 users. In the past， the requiredamount of memory and processors has increased proportionally to the number of new users. The customer plans to increase users by 10% each year for the next three years. Next year， a database will be added to the workload to support the users directly rather than being on a separate machine. What is the most likely result of this projected growth？（）A、Disk usage will increase in proportion to memory.B、The new database will demand much more memory.C、Memory demand will increase 10% for the next year.D、Processor demand will increase about 10% for the next year.
An administrator is adding additional memory into a server that registers 1GB of memory in the OS and notices that the system has 2GB of memory physically installed； however， the server only shows 1GB of memory during POST. Which of the following is the MOST likely reason for this？（）A、 The OS does not support more than 1GB of memory.B、 The system memory has different manufacture dates.C、 Two of the memory sticks are defective.D、 The server is using memory interleaving.
An administrator is adding memory to a server. Once the system boots up， the same amount of memory appears as before the upgrade. Which of the following is the MOST likely cause？（）A、The memory is not the correct CAS latency.B、The memory is not installed in the correct slot.C、The memory does not have the correct timing.D、The memory is not the correct speed.
Memory utilization by the print spooler process is constantly climbing after users begin to print to acertain type of printer. Which of the following is the MOST likely cause of the problem？（）A、 Corrupted print spooler softwareB、 Memory leak in one of the print driversC、 The disk drive is out of free spaceD、 Memory leak in the print spooler
A customer is evaluating PowerVM and VMware to run a data warehouse application. Which feature of PowerVM should be highlighted as a differentiator?（）A、PowerVM offers partition mobility.B、PowerVM can virtualize network and SAN resources.C、PowerVM supports multiple operating systems running concurrently.D、PowerVM allows an LPAR to use activated cores and memory without limitation.
An administrator wants to test the performance of an application at different memory sizes. What is the most effective way to perform the test and collect statistical information for each test？（） A、Run DLPAR to change the LPAR memory for each test.B、Run rmss command to simulate different memory for each test.C、Run chdev command to limit the system memory size for each test.D、Run chattr command to limit the system memory size for each test.
In the context of Advanced Power Virtualization， the shared pool refers to which of the following？（）A、A pool of physical memory that can be used by any partitionB、A pool of physical processors that can be used by any virtual or dedicated partitionC、A pool of physical memory that can be used by multiple Micro-PartitionsD、A pool of physical processors that can be used by multiple Micro-Partitions
An application vendor wants to choose a fault tolerant platform for their new application. The application benefits from multiple processors and has been tested on Red Hat Advanced Server 3. To determine the memory requirements for the application， which of the following is the best procedure？（）A、The application should be tested and baselines should be measured with simulated user loads.B、The application should be tested with the minimum amount of memory then increase the memory in increments until an acceptable response is achieved.C、The application should be tested with differing amounts of memory and the fastest response time is reached it should be used as the acceptable configuration.D、The application should be tested with the maximum amount of memory then decrease the memory in increments until an acceptable price/performance ratio is reached.
A server has been having a memory problem. What feature can be used to determine the failing memory module？（）A、Reboot the serverB、RSA IIC、LightPath DiagnosticsD、ServerGuide
Your database is configured in shared server mode. However， your senior DBA asks you to modify the value ofthe PRIVATE_SGA limit in the profile of the users. What could be the reason for this（）A、To limit the User Global Area （UGA） memory allocated to a session from the SGAB、To limit the amount of memory to be used for the dispatcher queue of a session in SGAC、To limit the amount of memory to be used for the request pool in System Global Area （SGA）D、To control the amount of memory allocated in SGA for the local variables for each shared server process
You find that the database performance degrades while you backup the PROD database using Recovery Manager （RMAN）. The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation？（）A、Configure Java Pool to cache the java objects.B、Configure Streams Pool to enable parallel processing.C、Increase Shared Pool size to cache more PL/SQL objects.D、Increase Database Buffer Cache size to increase cache hits.E、Configure Large Pool to be used by RMAN and shared server.F、Increase the total System Global Area （SGA） size to increase memory hits.
You work as a database administrator for Certkiller .com. You find that the database performance degrades while you backup the Certkiller database using Recovery Manager （RMAN）. The Certkiller database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation？（）A、Configure Java Pool to cache the java objects.B、Configure Streams Pool to enable parallel processing.C、Increase Shared Pool size to cache more PL/SQL objects.D、Increase Database Buffer Cache size to increase cache hits.E、Configure Large Pool to be used by RMAN and shared server.F、Increase the total System Global Area （SGA） size to increase memory hits.
Your portable computer has two 512-MB memory modules installed in the only two memory slots available. You need to improve the speed of your computer. What should you do？ （）A、Adjust the processor scheduling to optimize for background services.B、Connect a USB flash drive to the computer. Enable the ReadyBoost feature.C、Configure the virtual memory file to exist on the same drive as the operating system.D、Configure the local security policy setting of the computer to clear the virtual page file upon shutdown.
单选题Your database is configured in shared server mode. However， your senior DBA asks you to modifythe value of the PRIVATE_SGA limit in the profile of the users. What could be the reason for this（）Ato limit the User Global Area （UGA） memory allocated to a session from the SGABto limit the amount of memory to be used for the dispatcher queue of a session in SGACto limit the amount of memory to be used for the request pool in System Global Area （SGA）Dto control the amount of memory allocated in SGA for the local variables for each shared server process
单选题In the context of Advanced Power Virtualization， the shared pool refers to which of the following？（）AA pool of physical memory that can be used by any partitionBA pool of physical processors that can be used by any virtual or dedicated partitionCA pool of physical memory that can be used by multiple Micro-PartitionsDA pool of physical processors that can be used by multiple Micro-Partitions
单选题A customer has an 8-way p650 running an application for about 200 users. In the past， the requiredamount of memory and processors has increased proportionally to the number of new users. The customer plans to increase users by 10% each year for the next three years. Next year， a database will be added to the workload to support the users directly rather than being on a separate machine. What is the most likely result of this projected growth？（）ADisk usage will increase in proportion to memory.BThe new database will demand much more memory.CMemory demand will increase 10% for the next year.DProcessor demand will increase about 10% for the next year.
单选题When Bob, a technician, powers up a desktop PC, the unit will repeat three short beeps and will not POST. Which of the following is MOST likely the problem?（）AThe memory is failing.BThe CPU is overheating.CThe hard drive is not attached properly.DThe operating system is not installed.
单选题Memory was recently taken out of a fully functional production server before it wasdecommissioned and added to another server. Upon booting up the server with the additional memory the server emits a series of beeps and fails to POST. Which of the following is MOST likely the problem？（）AIncompatible memoryBMemory failureCThe memory is not configuredDThe server BIOS was not configured to accept the additional memory
单选题An administrator is adding additional memory into a server that registers 1GB of memory in the OS and notices that the system has 2GB of memory physically installed; however, the server only shows 1GB of memory during POST. Which of the following is the MOST likely reason for this?（）AThe OS does not support more than 1GB of memory.BThe system memory has different manufacture dates.CTwo of the memory sticks are defective.DThe server is using memory interleaving.
单选题An administrator is adding memory to a server. Once the system boots up， the same amount of memory appears as before the upgrade. Which of the following is the MOST likely cause？（）A The memory is not the correct CAS latency.B The memory is not installed in the correct slot.C The memory does not have the correct timing.D The memory is not the correct speed.
单选题An administrator is adding memory to a server. Once the system boots up, the same amount of memory appears as before the upgrade. Which of the following is the MOST likely cause?（）AThe memory is not the correct CAS latency.BThe memory is not installed in the correct slot.CThe memory does not have the correct timing.DThe memory is not the correct speed.