Verification Validation Are we building the system right? Are we building the right system? Verification is the process of evaluating products of a development phase to find out whether they meet the specified requirements. Validation is the process of evaluating software at the end of the development process to determine […]
NORMALIZATION NUMERICALS SET 1
EXAMPLE 1: Consider a relation R (A, B, C, D) with the following instance; A B C D 1 1 2 3 1 2 2 3 1 3 2 3 2 4 5 6 5 6 7 8 Which of the following functional dependencies are satisfied by this relation? How? […]
Question 1 While trying to collect(I) an envelope from under the table (II), Mr. X fell down (III) and was losing consciousness (IV) Which one of the above underlined parts of the sentence is NOT appropriate? A I B II C III D IV Explanation: Here, part IV is incorrect. […]
1. How long is an IPv6 address? A. 32 bits B. 128 bytes C. 64 bits D. 128 bits Answer: Option D Explanation: An IPv6 address is 128 bits long. 2. You have 10 users plugged into a hub running 10Mbps half-duplex. There is a server connected to the […]
OPERATING SYSTEM MCQ SET 1
A system has 32 bit Virtual adress and 8KB page size.main memory is 128 MB..the size of page table, when page table ,when pt entry has 1 valid bit 1 modified bit and frame bits is_____(MB)p.s what is frame bits..is it the frame entry size? Explanation: By default the address […]
Comparison of Logic families are here:
Previous GATE questions with solutions on Operating Systems (Synchronization) GATE-1996 1. A critical section is a program segment (a) which should run in a certain specified amount of time (b) which avoids deadlocks (c) where shared resources are accessed (d) which must be enclosed by a pair of semaphore operations, […]
Previous GATE questions with solutions on Operating Systems (CPU Scheduling) GATE-1995 1. Which scheduling policy is most suitable for a time-shared operating systems? (a) Shortest Job First (b) Round Robin (c) First Come First Server […]