Where are the global variables stored?

1147

---

What is the difference between exclusive lock and shared lock?

1200

---

Can you tell me the difference between semaphore and mutex.

1215

---

Explain what is a semaphore?

1115

---

What is significance of semaphores? What are the different types of semaphores?

1163

---

What is a hard real time OS?

1189

---

Define max, min heap and search time of heap.

1075

---

Explain Marshalling?

1048

---

Explain what are device drivers used for?

1055

---

Explain what is meant by CORE DUMPS?

1075

---

What are the essential conditions for a deadlock to occur?

1062

---

How does yahoo handles billions of requests, does it create a thread per request or a process?

1088

---

How can the FCFS scheduling be made better?

1191

---

How will you check if R3 system is a Unicode or non - Unicode system?

1093

---

What are the ways in which fault tolerance can be ensured in systems? (Different redundancy techniques)?

1215

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