Suppose a Given Control Unit Fails, on Average, Every 12,000

question 35

Multiple Choice

Suppose a given control unit fails, on average, every 12,000 hours. It takes an average of 900 hours to repair and reboot this unit. The repair/reboot procedures for this unit are being reconfigured. By how much would average repair/reboot time need to be reduced to increase availability by 5 percent (assuming the control unit's average life remains unchanged) ?

• A)not more than 200 hours
• B)more than 200 hours but not more than 400 hours
• C)more than 400 hours but not more than 600 hours
• D)more than 600 hours but not more than 800 hours
• E)more than 800 hours

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Definitions:

General Ledger Control Accounts

Accounts used to summarize the total balances of several subsidiary accounts, facilitating the reconciliation and reporting process.

Subsidiary Ledgers

Detailed ledgers that contain information supporting accounts listed in the general ledger, such as details on accounts receivable, accounts payable, etc.

Subsidiary Ledgers

Detailed records that contain information about specific accounts, which together support and reconcile with summary amounts in the general ledger.

Daily Postings

The routine process of recording transactions in the books of accounts or ledgers on a daily basis to ensure financial records are up-to-date.