Before disposal, hard drives should be wiped clean using special software that can erase the data without overwriting the data on the drive.
Answer the following statement true (T) or false (F)
False
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Convert the following decimal numbers into binary.
i. 0 ii. 1 iii. 2 iv. 3 v. 12 vi. 123 vii. 11 viii. 111 ix. 128 x. 255
Define a new version of the doOperation method that sets a timeout on waiting for the reply message. After a timeout, it retransmits the request message n times. If there is still no reply, it informs the caller.
What will be an ideal response?
Match the following operating systems with their characteristics:
I. Windows/Intel II. PC-DOS III. OS/390 and Z/OS IV. Linux V. iOS A. operating system developed for IBM B. GUI operating system C. a popular desktop computer platform D. cell phone operating system E. IBM mainframe operating system
A ____ runs Bitcoin software that verifies (using a hash function) that the blockchain has not been altered in any way since the previous transaction, and for this service, the miner is rewarded with new bitcoins.
A. dumpster diver B. Groupon bot C. virtual currency specialist D. bitcoin miner