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Consider the following solution to the producer-consumer synchronization problem. The shared buffer size is ?. Three semaphores empty, full and mutex are defined with respective initial values of 0, ? and 1. Semaphore empty denotes the number of available slots in the buffer, for the consumer to read from. Semaphore denotes the number of available slots in the buffer, for the producer to write to. The placeholder variables, denoted by P, Q, R, and S, in the code below can be assigned either empty or full. The valid semaphore operations are: wait ( ) and signal ( ). Producer: Consumer: do {         wait (P) ;         wait (mutex) ;         //Add item to buffer         signal (mutex) ;         signal (Q) ; } while (1) ; do {          wait (R) ;          wait (mutex) ;          //Consume item from buffer          signal (mutex) ;          signal (S) ; } while (1) ;   Which one of the following assignments to P, Q, R and S will yield the correct solution?
There are five classes class 1, class 2, class 3, class 4 and class 5 in a school. They are one above the other. Class 1 is at the bottom, then class 2 above it and so on. Five videos M1, M2, M3, M4 and M5 are displayed in these given classes. Only one video is displayed in a particular class. Each video is displayed only one time. Video M5 is displayed at an even numbered class. Video M2 is displayed at class 1. Video M1 is displayed at the class just below M5. Video M4 is not displayed at even numbered class. Which of the following statement is not correct?
Consider the statements given below and select the correct statement(s)
1. Computer-mediated communication (CMC) is defined as any human communication that occurs through the use of two or more electronic devices.
2. Computer-mediated Communication can be broken down into two forms i.e. synchronous and asynchronous.
3. Synchronous computer mediated communication refers to communication which occurs in real time.
4. Asynchronous computer mediated communication refers to communication which takes place when the parties engaged are not communicating in unison.
Which of the following set of statements are correct for describing the human communication process?
1. Non-verbal communication can stimulate ideas.
2. Communication is a learnt ability.
3. Communication is not a universal panacea.
4. Communication cannot break down.
5. More communication means more effective learning by students.
6. Value of what is learnt through classroom communication is not an issue for students.
Select the correct answer
Processes P1 and P2 have a producer-consumer relationship, communicating by the use of a set of shared buffers. P1: repeat                 Obtain a full buffer                 Empty it                 Return an empty buffer forever P2 P2P2: repeat             Obtain a full buffer             Empty it             Return an empty buffer          forever Increasing the number of buffers is likely to do which of the following? I. Increase the rate at which requests are satisfied (throughput) II. Decrease the likelihood of deadlock III. Increase the ease of achieving a correct implementation 
Match List I with List II List I (Examples of Communication) List II (Type of Communication) a)  A company boss telephones his / her secretary for some help from outside. i)  Marketing communication b)  A company issues a circular of guidelines for its employees. ii)  Horizontal communication c)  Employees discuss certain issues among themselves. iii)  Vertical communication d)  A company sends a formal letter to its retailers and wholesalers. iv)  Informal communication   Choose the correct answer from the options given below:
Match the following: Given below are two sets. Set-I embodies the types of communication while Set-II provides their exemplification. Select your answer from the code given: Set-I (Types of Communication) Set-II (Exemplification) a) Linear communication i) Members are given themes on which they are required to hold discussion. b) Interactive communication ii) A teacher in the classroom presents a structured content c) Transactional communication iii) The principal of a college holds the staff meeting for understanding their problems.   iv) The teacher and students in a college to on rampage.
Determine output of the following code. interface A { } class C { } class D extends C { } class B extends D implements A { } public class Test extends Thread{ public static void main(String[] args){ B b = new B(); if (b instanceof A) System.out.println("b is an instance of A"); if (b instanceof C) System.out.println("b is an instance of C"); } }
Farah while teaching the theme 'Means of communication' to class III students uses which of the following strategies to encourage inquiry among learns? A) Asks students to collect and classify pictures of means of communication B) Shows a video of means of communication  C) Asks students to narrate their experiences of means of communication and discusses with them  D) Shows a power-point presentation on means of communication 
Which of the following statements are true with regards to communication? 1) When the teacher warns a student by looking at him is non-verbal communication. 2) The Manager tells the clerk to complete the file by next day is a formal communication. 3) When communication takes place between two persons of different levels who have no direct reporting relationships is called Lateral communication.