Why is a FIFO page-replacement strategy impractical for most systems?

a) It replaces the page that has been in main memory the shortest amount of time.
b) It could lead to a decreased page-fault rate.
c) It could accidentally replace a heavily used page, such as one belonging to a text editor shared by several users.
d) The strategy’s implementation incurs substantial overhead.


c) It could accidentally replace a heavily used page, such as one belonging to a text editor shared by several users.

Computer Science & Information Technology

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What will be the results after the following code is executed?

``` int[] x = { 55, 33, 88, 22, 99, 11, 44, 66, 77 }; int a = 10; if(x[2] > x[5]) a = 5; else a = 8; ``` a. a = 5 b. a = 8 c. a = 10 d. a = 13

Computer Science & Information Technology

An abstract method cannot be modified by:

a. public b. protected c. private d. none of the above

Computer Science & Information Technology

Describe three types of slowly changing dimension (SCDs) and discuss the best SCD Type to track changes over time to a member’s home address.

What will be an ideal response?

Computer Science & Information Technology

What type of unit is formed by two or more wireless nodes communicating in ad hoc mode?

A. Basic Service Set (BSS) B. Basic Service Set Identifier (BSSID) C. Independent Basic Service Set (IBSS) D. Extended Service Set (ESS)

Computer Science & Information Technology