5.Match the following : A- Maintenance control: B- Maintenance prediction: C- Maintenance process: 1-Cost of planning and scheduling hardware preventive maintenance, and software maintenance and upgrades, managing the hardware and software baselines, and providing response for hardware corrective maintenance. 2Predicting the number of change requires a system understanding and the relationship between the system and external environment. 3- It is triggered by a set of change requests from system users, management or customers.
0.In Microsoft PowerPoint toolbars that are displayed by default in the PowerPoint window includes
Options: (A)Menu bar, standard toolbar, formatting toolbar, drawing toolbar, status bar (B) Menu bar, standard toolbar, formatting toolbar, drawing toolbar, status bar (C) Standard toolbar, formatting toolbar, drawing toolbar, status bar (D) Menu bar, standard toolbar, status bar, drawing toolbar 3
Options: (A)where the process will reside in memory, then absolute code can be generated (B) where the process will reside in memory, then the compiler must generate relocatable code (C) if the process can be moved during its execution from one memory segment to another (D) all of the above 27
Options: (A)someone who subverts computer security without authorization or who uses technology (usually a computer or the Internet) for terrorism, vandalism (malicious destruction), credit card fraud, identity theft, intellectual property theft, or many other types of crime. (B) a person, usually not an expert in computer security, who breaks into computer systems by using prepackaged automated tools written by others. (C) hacker who utilizes technology to announce a political message. (D) None of these 2
6.In shortest service time first policy, applied on disk scheduling, the disk request is selected
Options: (A)That requires the least movement of disk arm from its current position. (B) That requires the maximum movement of disk arm from its current position. (C) That is recently received. (D) On random. 15
Which one of the following is a statement of Kirchhoffs current law?
Options: The current through a resistance is proportional to the value of resistance and the IR drop across it, The total current in a parallel circuit is less than the value of the smallest current, The algebraic sum of currents in a loop is equal to zero, The algebraic sum of currents entering and leaving a point is equal to zero
Options: (A)Replaces the page in memory that has not been referenced for the least time. (B) Replaces the page in memory that has not been referenced for the longest time. (C) Replaces the page in memory in round robin fashion. (D) None of these. 10
Options: (A)When you use multiplication, division or exponentiation in a formula (B) When you use addition and subtraction in a formula (C) Because Excel uses hidden decimal places in computation (D) When you show the results of formulas with different decimal places than the calculated results 21