Chapter 28

Question 1

In case of static addresses can we use closed-form computation

Answer 1

No. Closed-form computation is for configurable addresses

Question 2

What is ARP

Answer 2

TCP/IP have a special protocol ‘Address resolution protocol’ which selects which address resolution technique will be used.

Question 3

TCP/IP use which address resolution technique

Answer 3

It can use all 3. It selects on the basis of scheme.

Question 4

ARP uses which 2 types of messages

Answer 4

1. Request

2. Response

Question 5

What is uni cast message

Answer 5

It is opposite of broad cost message. It means a message from one sender computer directly to receiver computer.

Question 6

Does IP address is 32 bits

Answer 6

Yes

Question 7

Does hardware address is 48 bits / 6 octets

Answer 7

Yes

Question 8

The ARP message format can be set of any length according to network type.
True/False

Answer 8

True

Question 9

Which area in frame identify ARP

Answer 9

Type field

Question 10

What is caching ARP responses

Answer 10

To save communication resources, we use caching on network that stores binding. This helps to reduce traffic and improve efficiency. It is temporary storage and its maximum time is 20 min. When it fulls it remove oldest binding and let one new come in.

Question 11

From which area receiver examines the message to determine message is response or request

Answer 11

operation field