Tag - Application Layer

what is Connection oriented and Connectionless
Interview Question of CCNA part 3

what is Connection oriented and Connectionless

Difference Between Connection oriented vs Connection less 

Connection-oriented means that a connection (a virtual link) must be established before data can be exchanged. This can guarantee that data will arrive, and in the same order it was sent. It guarantees delivery by sending acknowledgements back to the source when messages are received.


TCP is an example of an connection-oriented transport protocol.

A common example of connection-oriented communication is a telephone call: you call, the ‘destination’ picks up the phone and acknowledges and you start talking (sending data). When a message or a piece of it doesn’t arrive, you say: “What!?” and the sender will retransmit the data.

Connectionless is the opposite of connection-oriented; the sender does not establish a connection before it sends data, it just sends without guaranteeing delivery.


UDP is an example of an connectionless transport protocol.

Application Layers

Host A————————————Host B

Application layer——-data————Application layer

Presentation layer—–data————Presentation layer

Session layer———–data————Session layer

Transport layer—–segments——–Transport layer

Network layer   ——packets———-Network layer

Data-link layer——-frames———–Data-link layer

Physical layer———–bits————-Physical layer


Interview Question of CCNA part 3

21- What is OSI?

Open System Interconnection. t was first name of 7 Layer

22- What is the default size of Frame ?
1518 bytes

23- Which layer are called upper layer?
a )
Application Layer    – 7
b) Presentation Layer   – 6
c ) Session Layer            – 5

24- How many reserve ports ?
0 – 1023

25- Which decision called socket base?
IP plus port (IP on layer 3 and port on Layer 4 – In Encapsulation, socket base decision on Network Layer -Layer 3)

26- How many types of Data?
Voice, video, text

27 What is segmentation and fragmentation?

To divide data in pieces is called segmentation and divide segmentation in pieces called Fragmentation.

28- Which layer called error detection layer ?
Data link layer

29- What is FCS?
Frame Check Sequence –
CRC (Cyclic Redundancy Check) algorithm runs in switch that called FCS (Frame Check Sequence)

30- What is Encapsulation and De-encapsulation?
To send data called encapsulation and receive data called De-encapsulation.

CCNA Interview Question Part 1

CCNA Interview Question Part 2

CCNA Interview Question Part 3

CCNA Interview Question Part 4

CCNA Interview Question Part 5

CCNA Interview Question Part 6

CCNA Interview Question Part 7

CCNA Interview Question Part 8

CCNA Interview Question Part 9

CCNA Interview Question Part 10

CCNA Interview Question Part 11

CCNA Interview Question Part 12

CCNA Interview Question Part 13

CCNA Interview Question Part 14

Copyright © 2024. Created by IT Learning. Powered by DumpsForAll | Terms of Use | Privacy Policy