Proxy servers have two main purposes : 1. Improve | IBM Certification Questions & Answers

Q:

What help ensure that the XIV Systems cache does not become a bottleneck?

A) central cache locking mechanism	B) use of industry standard chip technology
C) each module is responsible for caching the data in that module	D) having all modules understand what is held cache at all times

Answer & Explanation Answer: C) each module is responsible for caching the data in that module

Explanation:

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Q:

Explain Given the following SQL statement: GRANT REFERENCES ON TABLE tab1 TO USER usera.Which of the following describes what USERA is allowed to do?

A) Create a read?only view using TAB1.	B) Alter TAB1 to add a check constraint.
C) Define a primary key or unique constraint on TAB1.	D) Define a dependent table where TAB1 is the parent.

Answer & Explanation Answer: D) Define a dependent table where TAB1 is the parent.

Explanation:

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Q:

What are the advantages of fragmentation?

A) reduced disk space requirements	B) higher availability
C) finer granularity of archives and resources	D) parallel scans are possible with PDQ

A) Transmit Request	B) Decrease Requests
C) Increase Requests	D) Filter Requests

Proxy servers have two main purposes :

1. Improve Performance (and)

2. is ______ ?