Question : In an operating system, round-robin scheduling means:

Option 1: A kind of scheduling

Option 2: Repetition policy

Option 3: A memory allocation policy

Option 4: A process allocation policy

Question : If $\sqrt[3]{a}+\sqrt[3]{b}=\sqrt[3]{c}$, then the simplest value of $\left (a+b+c \right )^{3}+27abc$ is:

Option 1: $-1$

Option 2: $3$

Option 3: $-3$

Option 4: $0$

Question : Directions: Arrange the following in ascending order.
1. Centimetre
2. Kilometre
3. Decimetre
4. Metre

Option 1: 1, 3, 4, 2

Option 2: 2, 4, 3, 1

Option 3: 3, 1, 2, 4

Option 4: 4, 2, 1, 3

Question : Directions: What is the best way to order the progression in hardware?
1. Silicon chips
2. Transistors
3. Vacuum tube
4. Integrated circuits

Option 1: 4, 2, 3, 1

Option 2: 3, 4, 1, 2

Option 3: 3, 2, 4, 1

Option 4: 4, 1, 3, 2

Question : If $P:Q=1: 3, Q:R=3:4,$ and $R: S=2:1$, then what is the value of $P:S$?

Option 1: $3:1$

Option 2: $2:1$

Option 3: $1:2$

Option 4: $3:2$