Why might a kernel-mode component need to create a system thread or queue a work item to a system worker thread?
a) The component must perform work not requested by a user thread (e.g., flushing dirty pages to disk).
b) The component is unable to perform all interrupt processing at an elevated IRQL.
c) The component must share handles with a user-mode process.
d) Both a and b.
d) Both a and b.
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In the remove function of the LinkedList class, when searching for the node to remove, we keep a pointer one node in front of the node we want to remove because:
A. the node we are searching for might not be in the linked list B. we must be able to link the node (that the pointer points to) to the node following the one we want to remove C. if the pointer pointed to the node we wanted to remove and then we removed it, we would get a runtime error D. if the pointer pointed to the node we wanted to remove and then we removed it, we would get a dangling reference (or dangling pointer)
How are line comments and block comments used?
What will be an ideal response?
A customer's nightly EMR job processes a single 2-TB data file stored on Amazon Simple Storage Service (S3). The EMR job runs on two On-Demand core nodes and three On-Demand task nodes. Which of the following may help reduce the EMR job completion time?
A. Use three Spot Instances rather than three On-Demand instances for the task nodes. B. Change the input split size in the MapReduce job configuration. C. Use a bootstrap action to present the S3 bucket as a local filesystem. D. Launch the core nodes and task nodes within an Amazon Virtual Cloud. E. Adjust the number of simultaneous mapper tasks. F. Enable termination protection for the job flow.
Some common types of denial of service include e-mail bombing, ____, and ping storm.?
A. ?firewalling B. ?filtering C. ?smurfing D. ?routing