An important function of the Processor Manager is to keep track of the status of each job, process, and thread.
Answer the following statement true (T) or false (F)
True
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Which of the following statements is false?
a. The collections from the java.util.concurrent package are specifically designed and optimized for sharing collections among multiple threads. b. ConcurrentHashMap and ConcurrentLinkedQueue are by far the most frequently used concurrent collections. c. The concurrent collections have been enhanced to support lambdas. d. Rather than providing methods to support streams, the concurrent collections provide their own implementations of various stream-like operations—e.g., ConcurrentHashMap has methods forEach, reduce and search—that are designed and optimized for concurrent collections that are shared among threads.
Which of the following tasks cannot be performed using an enhanced for loop?
a. Calculating the product of all the values in an array. b. Displaying all even element values in an array. c. Comparing the elements in an array to a specific value. d. Incrementing the value stored in each element of the array.
File protection based on access permissions is provided by a mechanism that prevents users from accessing each others’ files when they are not logged on as the owner of a file. As the owner of a file, you can attach certain access rights to the file that dictate who can and cannot access it for various types of file operations. This scheme is based on the types of users, the types of access permissions, and the types of operations allowed on a file under LINUX. Without such a protection scheme, users can access each others’ files because the LINUX file system structure (see Figure 7.2) has a single root from which hang all the files in the system. The number of protection bits needed to implement this scheme is equal to the product of the number of types of users and the number of types of
What will be an ideal response?
What registry key is considered to be the most important key, containing hardware, software, and security data?
A. HKEY_LOCAL_MACHINE B. HKEY_CURRENT_CONFIG C. HKEY_CLASSES_ROOT D. HKEY_USERS