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单选题
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
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更多 “单选题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
考题
从供选择的答案中选出应填入英语文句中()的正确的答案。Software products may be (A) into four basic types: application programs, programming language processors, operating systems, and system utilities.Application programs are programs that (B) useful tasks such as solving statistical problems, or keeping your company's books.Programming language processors are programs that (C) the use if a computer language in a computer system. They are tools for the development of application programs.Operating systems are programs that (D) the system resources and enable you to run application programs.System utilities are special programs that (E) the usefulness of or add capabilities to a computer.A～E: ① manage ② perform ③ support ④ reduce⑤ divided ⑥ enhance ⑦ implemented ⑧ introduce⑨ ranked ⑩ run
考题
Which of the following allows multiple applications toshare a single operating system resource?()
A.Logical PartitionB.Workload PartitionC.Dynamic Logical PartitionD.Shared Processor Logical Partition
考题
在网络体系结构中，OSI表示（）A、Open System InterconnectionB、Open System InformationC、Operating System InterconnectionD、Operating System Information
考题
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
考题
Which of the following is a software layer that interacts between the virtualized operating system and the physical hardware？（）A、 System Resource ManagerB、 Server BIOSC、 Guest Operating SystemD、 Hypervisor
考题
What is the difference between the CUoD and Utility Capacity On Demand?（）A、Utility allows for activation of resources by the hour. CUoD allows for permanent access to additional resources installed into the system.B、Utility allows for permanent access to additional resources installed into the system. CuOD allows for activation of resources by the hour.C、Utility allows for activation of resources by the minute. CUoD allows for permanent access to additional resources installed into the system.D、Utility allows for a 30 day usage of additional resources installed into the system. CUoD allows for permanent access to additional resources installed into the system.
考题
Which of the following is a correct statement about Workload Partitions （WPARs）？（）A、WPARs use dedicated cores and shared memory.B、WPARs are restricted to using dedicated resources.C、WPARs share the resources of a single AIX instance.D、WPARs use shared cores， memory， and dedicated network adapters.
考题
The df command indicates that a filesystem is full， however， the du command indicates that not all space is allocated. How would the system administrator isolate the discrepancy（）A、Use the fuser command to identify deleted but open files.B、Use the ipcs command to view orphan shared memory segments.C、Use the defrag command to determine if the filesystem is fragmented.D、Use the topas command to identify processes using the most system resources.
考题
A customer is installing an HMC-managed Power 720 with two partitions, one for Production the other for Testing. They plan to use the Testing partition only occasionally and want to minimize hardware. Which of the following meets these requirements?（）A、Create a system profile for each partition. Assign all needed resources as 'required'.B、Define all system resources as 'desired' on the Testing partition. Activate only as needed.C、Create two shared processor pools. Assign the minimal I/O resources required for each partition to the shared pools.D、Create both partitions with minimal 'required' resources, and optional resources as 'desired'. Activate each partition as necessary.
考题
What type of configuration can provide the best availability in a Virtual IO Server environment?（）A、Provide multiple paths to all resources through 2 or more Virtual IO ServersB、Mirror all disk resources on the Virtual IO Server to present to the client LPARC、Mirror all disk resources on the client LPAR to the shared SCSI on the Virtual IO ServerD、Trunk multiple Ethernet adapters on the Virtual IO Server to a single Shared Ethernet Adapter （SEA）
考题
What shared processor pool is the default for all newly created logical partitions using shared processor resources？（）A、 0B、 1C、 15D、 16
考题
Which functionality would a customer use to share available CPU resources between AIX and Linux partitions on a Power system?（）A、 Dynamic LPARB、 Micro PartitionsC、 Entitled capacityD、 Multiple Shared Processor Pools
考题
Companycom has just installed a p5 595 with four uncapped LPARs in a shared processor pool. The system and profile settings are still in their default states. One of the LPARs has an application that is consuming all of the available shared processor resources. Users of this application are complaining about response time. Which of the following changes to the slow LPAR would improve response time?（）A、Enable SMTB、Reduce the weightC、Renice the processD、Increase the weight
考题
How can resource allocations for an active partition on a Power 750 be changed immediately and permanently?（）A、Use Capacity on Demand to add the resources.B、Use DLPAR to add the resources and select the 'permanent' option.C、Use DLPAR to add the resources, and change the partition profile.D、Use an Operating System command to permanently request the resources.
考题
Which of the following allows multiple applications toshare a single operating system resource?（）A、Logical PartitionB、Workload PartitionC、Dynamic Logical PartitionD、Shared Processor Logical Partition
考题
A customer is interested in PS700 Blade with 32GB of memory. The Blade will have 4 partitions sharing resources equally. They want the least expensive operating system that supports Live Partition Mobility. Which of the following AIX Editions address their requirement？（）A、BasicB、ExpressC、StandardD、Enterprise
考题
Which statement is true regarding the Junos OS?（）A、The Junos kernel is based on the Solaris operating system.B、The Junos kernel is based on the GNU Zebra operating system.C、The Junos kernel is completely original and not based on any other operating system.D、The Junos kernel is based on the FreeBSD UNIX operating system.
考题
You issued the following command at the UNIX environment： % setenv ORA_SDTZ ’OZ_TZ’ What will be the impact of issuing the above command？（） A、 The operating system local time zone will be set for a user session using the operating system environment variable.B、 The database local time zone will be set for a user session using the operating system environment variable.C、 The operating system local time zone will be set for the database using the operating system environmentD、 The database local time zone will be set for the database using the operating system environment variable.
考题
Company.com would like to have the processor resources on their system efficiently shared between logical partitions， but does not require management of memory or I/O resources. Which of the following would accomplish this requirement？（）A、HMC command lineB、Uncapped processorsC、Partition Load ManagerD、Enterprise Workload Manager
考题
单选题Which of the following is a software layer that interacts between the virtualized operating system and the physical hardware？（）A
System Resource ManagerB
Server BIOSC
Guest Operating SystemD
Hypervisor
考题
单选题Company.com with limited AIX skills has purchased a p5-520 2-way which will run Micro-Partitions. To reduce the initial cost of purchase， the customer will be sharing the system resources using a VIO server. The customer is concerned about managing the installation of the operating system. Which of the following should the customer perform？（）A
Use alt_disk_install to install AIX on all logical partitions.B
Configure the DVD as a desired resource on all partitions.C
Configure all resources as shared resources between all partitions.D
Create a separate NIM server to manage the installation of all partitions.
考题
单选题Which functionality would a customer use to share available CPU resources between AIX and Linux partitions on a Power system?（）A
Dynamic LPARB
Micro PartitionsC
Entitled capacityD
Multiple Shared Processor Pools
考题
单选题Which statement is true regarding the Junos OS?（）A
The Junos kernel is based on the Solaris operating system.B
The Junos kernel is based on the GNU Zebra operating system.C
The Junos kernel is completely original and not based on any other operating system.D
The Junos kernel is based on the FreeBSD UNIX operating system.
考题
单选题You issued the following command at the UNIX environment： % setenv ORA_SDTZ ’OZ_TZ’ What will be the impact of issuing the above command？（）A
The operating system local time zone will be set for a user session using the operating system environment variable.B
The database local time zone will be set for a user session using the operating system environment variable.C
The operating system local time zone will be set for the database using the operating system environmentD
The database local time zone will be set for the database using the operating system environment variable.
考题
单选题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.
考题
单选题Which of the following BEST describes the initial process of setting up a new operating system from a CD-ROM? （）A
Format a partition, install device drivers, and install the operating system.B
Create a partition, format the partition, and install the operating system.C
Install the operating system, create a partition, and install device drivers.D
Install the operating system, install device drivers, and create a partition.
考题
单选题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.
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