When you open a file that file already exists on the disk using the "w" mode, the contents of the existing file will be erased.

a. true
b. false


Ans: a. true

Computer Science & Information Technology

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In a query, the ____ clause is used to specify the records you want to select in the dataset.

A. Select B. From C. Where D. Order

Computer Science & Information Technology

Under MVS, following any interrupt, the old PSW is saved in a partition control block in the __________.

a. PRB b. SVRB c. TCB d. UCB

Computer Science & Information Technology

The ____ of a node in a binary tree is the number of branches on the path from the root to the node.

A. height B. level C. width D. size

Computer Science & Information Technology

To summarize data in a report and override the sort order of the record source you would use:

What will be an ideal response?

Computer Science & Information Technology