Monday, July 25, 2022

HTTP - Class 11 and 12 CS and IP Notes

 HTTP:


1. HTTP stands for Hypertext Transfer Protocol.

2. HTTP is an application-layer protocol.

3. HTTP was designed for communication between web browsers and web servers.

4. HTTP used to load web pages using hyperlinks.

5. HTTP is the set of rules for transferring files -- such as text, images, sound, video and other multimedia files over the internet.

6. HTTP is connectionless.

7. HTTP is media independent

8. HTTP is stateless

9.  Port number of HTTP is 80

10. HTTP URLs begin with http://

11. HTTP is faster than HTTPS

12. HTTP does not improve search rankings.








Wednesday, July 20, 2022

12 CS Unit Test - 20 July 2022

 1. Which statement will read 5 characters from a file?

a. f.read()

b. f.read(5)

c. f.reads(5)

d. f.readline(5)

2. EOF stands for --

a. End of File

b. End Off File

c. End on Line

d. End or Line

3. File in python is treated as sequence of __________

a. bits

b. Bytes

c. Words

d. Nibble

4. Which function is used to write data in binary file?

a. write()

b. writelines()

c. pickle()

d. dump()

5. What is the full form of CSV?

a. Character Separated Values 

b. Comma Separated Values

c. Common Separated Values

d. Common Separated Variables

6. Write the full form of the following:       (3)

a. VoIP

b. MAN

c. ARPANET

d. NSFNET

e. NFC

f. VoLTE

7. Write the minimum four difference between switch and router.      (2)

8. Write the minimum four difference between Bus and Ring Topologies  (2)

9. Write the minimum four difference between LAN and WAN            (2)

10. Write the short notes on the following -                                            (4)

a. Internet

b. Extranet

c. Intranet

d. Interspace

11. If we want to connect 8 devices using mesh topology how many wired are required?    (1)

12. Set of Piconet is called ----

a. Scatternet

b. Internet

c. ARPANET

d. NSFNET

















Monday, July 18, 2022

Modem - Network Device Class 11 and 12

 Modem:

1. Modem stands for modulation - demodulation.

2. Modem is a input as well as output device.

3. Modem is used to convert digital signal into analog signal and also used to convert analog signal into digital signal.

4. Modulation is the process to convert digital signal into analog signal.

5. Demodulation is the process to convert analog signal into digital signal.

Types of Modulation:

1. AM

2. PM

3. FM

Gateway - Network Device Class 11 and 12

Gateway:



1. Gateway is a networking device. 
2. Gateway is operate on Network Layer.
3. Gateway is used to connect the networks which are operates on different protocols.
4. Gateway does not support dynamic routing.
5. The main function of a gateway is to translate one protocol to the other.
6. Gateway is hosted on dedicated applications, physical servers or virtual applications.
7. The additional features provided by a gateway are network access control, protocol conversion etc.
8. Gateway can also be defined as a node which acts as an entrance for the other nodes in the network.
9. A gateway is a hardware device that works as a “gate” between two networks.




Repeater- Network Device Class 11 and 12

 Repeater:

1. Repeater is a networking device.

2. Repeater operator at physical layer.

3. Data used in the bit format in the repeater.

4. Repeater is used to regenerator the signals to its original strength.

5. Repeater is a two port device.

6. Repeater is also known as signal boosters.




Router - Network Device Class 11 and 12

 Router:

1. Router is a networking device.

2. Router is a Network Layer device.

3. Router works for WAN (Wide Area Network)

4. Router works for communication between different network.

5. Router is an inter network device.

6. Router use IP address

7. Data use as a packet in Router.

8. Router perform routing operation

9. Router use routing table.

10. Router usally support 2/4/8 etc ports

11. Router is slower than switch.

12. Router support 10 Mbps to 100 Mbps speed



Switch - Network Device Class 11 and 12

 Switch:

1. Switch is a networking device.

2. Switch is a data link layer device.

3. Switch works in LAN (Local Area Network)

4. Switch works in same network.

5. Switch is an intra-network device

6. Switch use MAC (Media Access Control) address

7. Switch is an intelligent device

8. Data use as a frame format in switch.

9. Switch  use CAM (Content Accessable Memory) table

10. Switch usally used in 8/16/24/48 ports

11. Switch is a multiport device.

12. Switch is a full duplex device

13. No collision occurs in switch.

14. In switch every port has its collision table.

15. Switch support advanced features like VLAN, STP, RSTP etc.

16. Switch is faster than router.

17. Switch support 10 Mbps to 1 Gbps speed.