Other Programming & Computer Science Answers

We have taken all the possible techniques to prevent the defects in different phases of sdlc. Do we still need to test the software ? Explain your answer.

Consider the set of 4 processes whose arrival time and burst time are given below:

PROCESS

ARRIVAL TIME

BURST TIME

P1

3

P2

7

8

P3

4

1

P4

2

4

If the CPU Scheduling policy is Round Robin with time quantum of 3 units, calculate the average waiting time and average turn around time.

Consider the set of processes with Arrival time, CPU Burst time and Priority (5 is the highest priority) shown below.

PROCESS

ARRIVAL TIME

BURST TIME

PRIORITY

P0

5ms

9ms

4 

P1

0ms

6ms

2

P2

15ms

10ms

1

P3

9ms

3ms

3

P4

12ms

5ms

5

Calculate the average waiting time of all the processes using preemptive priority scheduling algorithm.

Consider the following table of arrival time and burst time for three processes P0, P1 and P2.

PROCESS

ARRIVAL TIME

BURST TIME

P0

0ms

9ms

P1

1ms

4ms

P2

2ms

9ms

The preemptive shortest job first scheduling algorithm is used. Scheduling is carried out only at arrival or completion of processes. What is the average waiting time for the three processes?

1. Present an overview of PCIe.

1. Describe the concept of interconnection within a computer system.

Which Of the following normal forms, _____ is mostly of theoretical interest.

Select one:

a. 1NF

b. BCNF

c. DKNF

d. 3NF

An ERP system stores information across different departments based on user roles on the system. Jonn is the manager and has a wider access on the system to view different department’s information for an overview of operations and decision making. What is the term used to define data from various department stored in one place ?

Select one:

a. Data consistency

b. Data design

c. Data dictionary

d. Data intergration

1. Explain how images are displayed on computer screens.

2. Explain how a touch screen works.

Briefly explain network application GPS and RFID. How UBER

and DHL using these applications in their business model discuss the case