What is the relationship between a tcp and udp packet?

They are both IP packets; both TCP and UDP use IP as their basis. TCP is used to create a channel with flow control, UDP just sends single packets that may get lost.

a variable of array type holds a reference of object

array are commonly used in computer program to organize data so that a related set of values

array are using zero base indexing it start with 0.

all component of array have same type, two different types doesn't use in single array

if array are store 10 quantities its index value varies from 0 to 9.

it stores 1st quantity value in index value 0 and this process will same till index value 9.

1. a

2. a

3. d

explanation: