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48 lines
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48 lines
12 KiB
id&qtp&qim&qil&qtx&qca&qia&qrm&qnxt&qprv&qalb&subj&wght&pts&flr&ded&layout&qfixed&qptsbyans&flags
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os1.001&mcs&0&N&Which one of the following best describes the purpose of an operating system?&Managing hardware and providing services to applications&Sorting large files;Managing on-line application development;Managing the tape library;&&&&a&undefined.0&&&&&1:v&&&N.
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os1.002&mcs&0&N&Which of the following IBM Servers use IRQs, I/O addresses, and DMAs as a way for the operating system to
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;connect with the processor?&xSeries and Netfinity servers&iSeries and AS/400 servers;zSeries and S/390 servers;pSeries and RS/6000 platforms;&System x, formerly the IBM xSeries server were built using Intel x86 processors. IBM sold the product to
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;<br>;<br>Lenovo in 2014.&&&a&undefined.0&&&&&1:v&&&N.
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os1.003&mcs&0&N&Which of the following is a false statement?&Virtual memory reduces main memory requirements per program by no more than 5 percent.&Very positive and practical results have been achieved with virtual memory environments because the 80/20 rule has proven to be reliable.;Virtual memory implementations help programmers.;&This statement is false because virtual memory reduces main storage by much more that 5 percent. &&&a&undefined.0&&&&&1:v&&&N.
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os1.004&tf&0&Y&True or False? IBM eServer platforms are capable of handling concurrent transactions and providing sub-second response time, while running batch jobs to fill in any idle time.&TRUE&FALSE&&&&&undefined.0&&&&&1&&&N.
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os1.005&mcs&0&Y&Which one of the following did the material in this lesson suggest was a very popular and cost-effective security measure?&Passwords changed at regular intervals&Retina scanners;Card swipes;Security guards;&&&&a&undefined.0&&&&&1:v&&&N.
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os1.006&mcs&0&Y&Your CIO says, "We have a lot of technology personnel who leave to pursue other opportunities. How can I be sure someone doesn't take some of our business files with them on their way out?" Click the best security rule to apply in this situation.&Restrict file access&Create an audit trail;Issue new user IDs once a month;Institute a multiple password system;&&&&a&undefined.0&&&&&1:v&&&N.
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os1.007&mcs&0&N&What kind of services does the operating system provide to coordinate shared resources and maintain the integrity of updated resources? &Serialization services&Timer services ;Locking services;Management services;&&&&a&undefined.0&&&&&1:v&&&N.
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os1.008&tf&0&N&True or False? <br><br>The AIX kernel provides the ability to share resources simultaneously among many processes <br>or threads and users.&TRUE&FALSE&This is True. The most important resources that the kernel manages are Processors, Memory, and Devices.&&&&undefined.0&&&&&1&&&N.
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os1.009&tf&0&N&True or False? <br><br>A computer's operating system workload can not be prioritized using preemptive multitasking. &FALSE&TRUE&A computer's operating system workload can be prioritized using preemptive multitasking. High-priority work preempts low-priority work. Low-priority work is temporarily set aside until there is no higher-priority work to run.<br>&&&&undefined.0&&&&&1&&&N.
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os1.010&tf&0&Y&True or False? Virtual memory is used to optimize central storage.&TRUE&FALSE&&&&&undefined.0&&&&&1&&&N.
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os1.011&mcs&0&Y&Virtual memory operating systems can keep only how much of a typical program in main memory and still meet service level objectives for the program.&20%&30%;50%;10%;&&&&a&undefined.0&&&&&1:v&&&N.
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os1.012&tf&0&Y&True or False? One advantage of virtual memory is that it degrades the overall performance of the operating system. &FALSE&TRUE&The degrading of the overall performance of the operating system is a disadvantage.&&&&undefined.0&&&&&1&&&N.
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os1.013&tf&0&Y&True or False? Additional memory can not do anything to help reduce or eliminate the effects of disk drag and its impact on overall system performance.&FALSE&TRUE&Additional memory can help reduce or eliminate the effects of disk drag and its impact on overall system performance&&&&undefined.0&&&&&1&&&N.
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os1.014&tf&0&Y&True or False? One benefit of virtual memory is that when a large portion of the system is present in virtual memory, ongoing upgrades of main memory or expanded storage capacity improve the overall performance?&TRUE&FALSE&&&&&undefined.0&&&&&1&&&N.
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os1.015&tf&0&Y&True or False? A subsystem makes the larger processing system operate slower and less efficiently.&FALSE&TRUE&The opposite is true, the subsystem makes the larger system operate more efficiently.&&&&undefined.0&&&&&1&&&N.
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os1.016&mcs&0&Y&What is the opposite of batch processing?&Transaction processing&Automatic processing;Management processing;&&&&a&undefined.0&&&&&1:v&&&N.
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os1.017&tf&0&Y&True or False? Hackers pose almost no threat to zSeries and s/390&TRUE&FALSE&&&&&undefined.0&&&&&1&&&N.
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os1.018&mcs&0&Y&What is the most secure server?&zSeries&iSeries;UNIX;Windows;&&&&a&undefined.0&&&&&1:v&&&N.
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os1.019&mcs&0&Y&What is the most widely used security technique?&Passwords&Retina scanners;Tracking;&&&&a&undefined.0&&&&&1:v&&&N.
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os1.020&esa&0&&Managed resources are storage, ______, and I/O channels.&processors&&Managed resources are storage, processors, and I/O channels.&&&&undefined.0&&&&&1&&&N.
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os1.021&tf&0&&A virtual machine (VM) can run a number of operating systems at the same time&TRUE&FALSE&VM stands for Virtual Machine and is a hypervisor that runs multiple operating systems concurrently.&&&&undefined.0&&&&&1&&&N.
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os1.022&esa&0&&OS services include setting or monitoring time intervals, serializing access to a shared resource, and
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;acquiring and releasing _____ storage where programs and data reside.&virtual&&OS services include setting or monitoring time intervals, serializing access to a shared resource, and
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;acquiring and releasing virtual storage where programs and data reside.&&&&undefined.0&&&&&1&&&N.
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os1.023&tf&0&&Storage management makes sure that the computer doesn’t run out of memory and quit. &TRUE&FALSE&A multi-tasking operating system must maintain reserves of storage and intermittently replenish those
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;reserves or the system will run short and jobs will abnormally terminate.&&&&undefined.0&&&&&1&&&N.
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os1.024&tf&0&&Serialization services control the application software’s access to shared resources &TRUE&FALSE&The operating system provides serialization services (i.e. lock management) to coordinate shared resources
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;and maintain the integrity of updated resources.&&&&undefined.0&&&&&1&&&N.
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os1.025&esa&0&&Some code demands exclusive use of a processor. _____ services make this happen. &Locking&&The operating system provides locking services that enable one processor at a time to execute code that
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;will not work properly unless it is used serially.&&&&undefined.0&&&&&1&&&N.
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os1.026&tf&0&N&A single operating system can only run a single processor. &FALSE&TRUE&Large computer systems can have multiple processor operating systems (MP).When the computer is using an MP
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;operating system, the operating system must be smart enough to manage multiple processors. Serialization is
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;needed to protect shared resources among the processors.An MP operating system provides locking services
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;that enable one processor at a time to execute code that does not work properly unless it is used serially.&&&&undefined.0&&&&&1&&&N.
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os1.027&esa&0&&Interrupts break into the normal execution of an _____ program and transfer control to the operating system
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;code. &application&&Interrupts break into the normal execution of an application program and transfer control to the operating
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;system code. &&&&undefined.0&&&&&1&&&N.
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os1.028&esa&0&N&On an IBM System z, an I/O ____ triggers an interrupt. &request&&On an IBM System z, an I/O request triggers an interrupt. &&&&undefined.0&&&&&1&&&N.
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os1.029&esa&0&N&On an IBM System z, an application’s request for a ____ , the supervisory function, triggers an
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;interrupt. &service&&On an IBM System z, an application’s request for a service, the supervisory function, triggers an
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;<br>;interrupt. &&&&undefined.0&&&&&1&&&N.
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os1.030&esa&0&&On an IBM system Z (S/390), a hardware ____ action to start or stop an application triggers an interrupt. &timer&&On an IBM system Z (S/390), a hardware timer action to start or stop an application triggers an interrupt. &&&&undefined.0&&&&&1&&&N.
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os1.031&esa&0&&On an IBM system Z (S/390), a detected ____ triggers an interrupt. &error&&On an IBM system Z (S/390), a detected error triggers an interrupt. &&&&undefined.0&&&&&1&&&N.
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os1.032&esa&0&&The AIX kernel found on the older pSeries and RS/6000 platforms managed processors, ____, and devices.&memory&&The AIX kernel found on the older pSeries and RS/6000 platforms managed processors, memory, and devices.&&&&undefined.0&&&&&1&&&N.
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os1.033&esa&0&&In a preemptable kernel, a higher-priority thread may preempt an ___ low-priority thread.&active&&In a preemptable kernel, a higher-priority thread may preempt an active low-priority thread.&&&&undefined.0&&&&&1&&&N.
os1.034&esa&0&&An IBM i operating system will interrupt a program to ____ instructions &retrieve&&An IBM i operating system will interrupt a program to retrieve instructions &&&&undefined.0&&&&&1&&&N.
os1.035&esa&0&&An IBM i operating system will interrupt a program to retrieve a direct-store _____&address&&An IBM i operating system will interrupt a program to retrieve a direct-store address&&&&undefined.0&&&&&1&&&N.
os1.036&esa&0&&An IBM i operating system will interrupt a program that is supposed to be aligned on a ___ boundary &memory&&An IBM i operating system will interrupt a program that is supposed to be aligned on a memory boundary &&&&undefined.0&&&&&1&&&N.
os1.037&esa&0&&An IBM i operating system will interrupt a program that attempts to execute without _____&authority&&An IBM i operating system will interrupt a program that attempts to execute without authority&&&&undefined.0&&&&&1&&&N.
os1.038&esa&0&&An IBM i operating system will interrupt a program to deal with _____ point issues &floating&&An IBM i operating system will interrupt a program to deal with floating point issues &&&&undefined.0&&&&&1&&&N.
os1.039&esa&0&&An IBM i operating system will interrupt a program for the single-step ____ instructions &trace&&An IBM i operating system will interrupt a program for the single-step trace instructions &&&&undefined.0&&&&&1&&&N.
os1.040&esa&0&N&An IBM i operating system will interrupt a program for a ______ call instruction &system&&An IBM i operating system will interrupt a program for a system call instruction &&&&undefined.0&&&&&1&&&N.
os1.041&esa&0&&System x uses the ____ request (IRQ) to let the OS communicate with the Intel x86 hardware. &interrupt&&System x uses the interrupt request (IRQ) to let the OS communicate with the Intel x86 hardware. &&&&undefined.0&&&&&1&&&N.
os1.042&esa&0&&System x uses the I/O ____ to assign RAM to devices that need to communicate with the Intel x86 hardware. &address&&System x uses the I/O address to assign RAM to devices that need to communicate with the Intel x86
;hardware. &&&&undefined.0&&&&&1&&&N.
os1.043&esa&0&&System x uses ___ Memory Access (DMA) to streamline moving data into RAM. &Direct&&System x uses Direct Memory Access (DMA) to streamline moving data into RAM. &&&&undefined.0&&&&&1&&&N.
os1.044&tf&0&N&IRQs with lower numbers have higher priority &TRUE&FALSE&Interrupt Requests (IRQs). On a PC, IRQs provide a way for a device to request CPU time. Every I/O card that is
;installed must have a unique interrupt. IRQs with lower numbers have higher priority.&&&&undefined.0&&&&&1&&&N.
os1.045&esa&0&&For every interrupt, the operating system must obtain ____, do appropriate processing, and decide which
;work to resume next. &control&&For every interrupt, the operating system must obtain control, do appropriate processing, and decide which
;work to resume next. &&&&undefined.0&&&&&1&&&N.
os1.046&esa&0&&Forcing tasks to wait their turn is called ____ multitasking &preemptive&&Forcing tasks to wait their turn is called preemptive multitasking &&&&undefined.0&&&&&1&&&N.
os1.047&esa&0&&Sometimes low-priority work is referred to as ______ work. &discretionary&&Low-priority work is temporarily set aside until there is no higher-priority work to run.Sometimes low-
;priority work is referred to as discretionary work.&&&&undefined.0&&&&&1&&&N.
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