1121. Three cards: BB, RR, BR. You draw one, see a color. What’s P(opposite side same)?

Discrete Structures and Optimization • Probability • JULY 2016

1122. If R₁,R₂ reflexive on A, which is correct?

Discrete Structures and Optimization • Relations • JULY 2016

1123. Revised vs. standard simplex: (a) needs less compute (b) auto inverse basis (c) fewer entries. Correct?

Discrete Structures and Optimization • Simplex method • JULY 2016

1124. Transportation problem solution given. The solution is :

Discrete Structures and Optimization • Transportation problem • JULY 2016

1125. Scheduler re-evals priority ∝ waiting time, no I/O, all arrive at 0. Which?

Operating System • CPU Scheduling • JULY 2016

1126. Which is NOT true of cron daemon?

Operating System • Daemons • JULY 2016

1127. Given 4 processes, 12 instances of R, max needs & allocations given, is system safe? Safe sequence?

Operating System • Deadlock – Banker’s Algorithm • JULY 2016

1128. Disk head at 32; FCFS queue 98,37,14,124,65,67. Total moves?

Operating System • Disk Scheduling – FCFS • JULY 2016

1129. Null RPC=1 ms +1.5 ms per 1K. Read 32K as 32 RPCs takes ?

Operating System • Distributed Systems: RPC • JULY 2016

1130. Mode 641: owner rw, group r, others x; Mode 100: owner x only. Which correct?

Operating System • File permissions • JULY 2016

1131. In UNIX, which `mkdir` creates subdirs `PIS/progs` and `PIS/data`?

Operating System • File System Commands • JULY 2016

1132. Which is NOT correct about UNIX file system?

Operating System • File Systems: UNIX • JULY 2016

1133. FIFO page faults for ref 0 1 2 3 0 1 4 0 1 2 3 4 with 3 and 4 frames.

Operating System • Memory Management – Paging • JULY 2016

1134. After fork(), parent and child share which?

Operating System • Processes: fork() Behavior • JULY 2016

1135. In UNIX, finished but status-uncollected processes are ____.

Operating System • Processes: States • JULY 2016

1136. MTBF = 30 days, MTTR = 12 hrs. Availability ≈ ?

Operating System • Reliability & Availability • JULY 2016

1137. Which is NOT correct about UNIX signals?

Operating System • Signals • JULY 2016

1138. wc -l b & does what?

Operating System • Unix utilities • JULY 2016

1139. Regarding ADT implementation: A. needs encapsulation syntax; B. needs primitive ops; C. C++, Ada, Java5.0, C#2005 support parameterized ADT. Which is correct?

Programming Languages • Abstract Data Types & Generics • JULY 2016

1140. The C declaration `int (f())[ ];` declares what?

Programming Languages • C Declarations • JULY 2016