
tech quiz finals
Quiz
•
Computers
•
Professional Development
•
Practice Problem
•
Hard
Ramesh PN
Used 2+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which of the following requires a device driver?
Register
Cache
Main memory
Disk
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
In the context of operating system, which of the following statements is/are correct with respect to paging?
A. Paging helps solve the issue of external fragmentation.
B. Page size has no impact on internal fragmentation.
C. Multi-level paging is necessary to support pages of different sizes.
D. Paging incurs memory overheads
A,C
B,C
C,D
A,D
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Three processes arrive at time zero with CPU bursts of 16, 20 and 10 milliseconds. If the scheduler has prior knowledge about the length of the CPU bursts, the minimum achievable average waiting time for these processes in a non-preemptive scheduler (rounded to nearest integer) is _________ milliseconds.
12ms
16ms
18ms
11ms
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Find all the tuples having temperature greater than 'Paris'.
Select * from weather where temperature > (Select temperature from weather where City = 'Paris')
Select from weather where temperature > (select from weather where City = 'Paris')
Select * from Weather where temperature > (select city from weather where City = 'Paris')
Select * from weather where temperature > 'Paris' temperature
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which dependency are present in the below schema?
R : Regno, subject_code, mark, grade
Fully Functional Dependency
Partial Functional Dependency
Transitive Functional Dependency
All the Above
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is the binary search algorithm’s time complexity?
O(n)
O(1)
O(logn)
O(nlogn)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sliding Window is ____________technique
Divide and Conquer
Greedy
Brute Force
Dynamic Programming
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