KPK 11th Class Computer Chapter 5 Network Communication & Protocols Short Questions Answers
KPK 11th Class Computer Chapter 5 Network Communication & Protocols Short Questions with answers are combined for all 11th class(Intermediate/hssc) Level students.Here You can prepare all Computer Chapter 5 Network Communication & Protocols short question in unique way and also attempt quiz related to this chapter. Just Click on Short Question and below Answer automatically shown. After each question you can give like/dislike to tell other students how its useful for each.
Class/Subject: 11th Class Computer
Chapter Name: Network Communication & Protocols
Board: All KPK Boards
- Malakand Board 11th Class Computer Chapter 5 Network Communication & Protocols short questions Answer
- Mardan Board 11th Class Computer Chapter 5 Network Communication & Protocols short questions Answer
- Peshawar Board 11th Class Computer Chapter 5 Network Communication & Protocols short questions Answer
- Swat Board 11th Class Computer Chapter 5 Network Communication & Protocols short questions Answer
- Dera Ismail Khan Board 11th Class Computer Chapter 5 Network Communication & Protocols short questions Answer
- Kohat Board 11th Class Computer Chapter 5 Network Communication & Protocols short questions Answer
- Abbottabad Board 11th Class Computer Chapter 5 Network Communication & Protocols short questions Answer
- Bannu Board 11th Class Computer Chapter 5 Network Communication & Protocols short questions Answer
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KPK 11th Class Computer Chapter 5 Network Communication & Protocols Short Questions Answers
Show all the modes of data communication with the help of a diagram
The way in which data is transmitted from one place to another is called data transmission mode.
a. Simplex, half- duplex and full-duplex
b. Synchronous and Asynchronous
a. Simplex, half- duplex and full-duplex Simplex:
Data travels in one Radio and T.V transmissions.
Half-duplex
Data can travel in both direction but not at the same time. The internet browsing is an example of half duplex mode.
Half-Duplex
Full-duplex:
Data can flow in both directions at the same time. The telephone
Communication system is an example of full-duplex communication mode.
Full-Duplex
b. Synchronous and Asynchronous
I. Synchronous Transmission
The is transmitted block by or word by word at the same time.
II. Asynchronous Transmission
The data is transmitted character by character.
a. Simplex, half- duplex and full-duplex
b. Synchronous and Asynchronous
a. Simplex, half- duplex and full-duplex Simplex:
Data travels in one Radio and T.V transmissions.
Half-duplex
Data can travel in both direction but not at the same time. The internet browsing is an example of half duplex mode.
Half-Duplex
Full-duplex:
Data can flow in both directions at the same time. The telephone
Communication system is an example of full-duplex communication mode.
Full-Duplex
b. Synchronous and Asynchronous
I. Synchronous Transmission
The is transmitted block by or word by word at the same time.
II. Asynchronous Transmission
The data is transmitted character by character.
Differentiate between Synchronous and Asynchronous transmission.
| Synhronous Transmission | Asynchronous Transmission |
| Data is transmitted at regular time period | Data is transmission irregular time period. |
| Multiple characters are transmitted at a time | Single character transmission at a time |
| No error checking is involved | Error checking is involved |
| Suitable for long-rang transmission | Not suitable for long-range transmission |
| No use of star and stop bits | Use of star and stop bits |
| Data transmission speed is faster | Data transmission speed is slower |
Differentiate between Guided and Unguided Media.
| Guided Media | Unguided Media |
| Wire is the medium for data transmission | Air is the medium for data transmission |
| Everyone can’t receive data without wire connection | Everyone can receive data without wire connection |
| Less expensive way of data transmission | More expensive way of data transmission |
| Suitable for short-rang data transmission | Suitable for long-range data transmission |
| Data transmission in the form of current | Data transmission in the form of waves |
| Examples are Twisted pair cable co-axial cable and Fiber Optic cable | Examples are: Radio Waves, Micro waves, Infrared waves |
Differentiate between LAN and WAN?
| LAN (Local area Network | WAN (Wide Area Network) |
| LAN is a computer network covers small area like a home, office or colleges etc. | WAN is a computer network that covers a broad area |
| Data transfer speed is very fast in LAN (up to 1000 Mbps) | Data transfer speed is slow in WAN (up to 150 Mbps) |
| LAN is used to share files and hardware like printers | WAN is used to share only data and information i.e email and files |
| LAN is less costly | WAN is expensive |
| LAN faces less data v transmission errors | WAN faces more data transmission errors |
| The best example for a LAN is the network in an organization | The best example for a WAN is the Internet |
What is OSI Model?
OSI stands for Open System Interconnection. An open system is a model that allows any two system to communicate even if their architectures are different. It covers all aspects of network communications. OSI model consists of seven. Each layer performs a specific function in network communication.
Layer Function
Layer Function
| Application | User interface |
| Presentation | Data forming |
| Session | Establish & maint connect |
| Transport | TCP- Accurate data |
| Network | IP- Routers |
| Data Link | MAC-Switches |
| Physical | Signals- Cables |
Compare TCP/IP Model with OSI Model?
| TCP/IP Model | OSI MODEL |
| It has 4 layers | It has 7 layers |
| It combines presentation and session layer into application layer | It has separate presentation and session layer |
| It is protocol based model | It is layer based model |
| It is older model | It is new model |
| The Network layer in TCP/IP model provides connectionless service | The Network layer of OSI model provides both connectionless service |
| The transport layer of this model is both connection oriented and connectionless | The Transport layer of OSI model is connection oriented |
Differentiate between Circuit Switched and Packet Switched Networks?
| Circuit Switched Network | Packet Switched Network |
| It is connection oriented and may also be connection-less service. | It is commonly connection-less service. |
| It is costly. | It is less expensive. |
| Connection is fast and facing no errors. | It faces errors as a result connection is slow. |
| Best used for transmission of audio signals only. | Best suitable for data. Audio and video signals can also be transmitted in the form of packets. |
| It has fixed bandwidth allocation. | It has dynamic bandwidth allocation. |
| Example is Telephone system. | Example is Internet. |
Briefly describe IP Addressing.
IP (Internet Protocol) address is a unique number that is used for computer connected to the internet. This address is 32-bit number. The 32 bits are broken into four octets (1 octet is equal to 8 bite) Each octet is represented in decimal and separated by dot. The minimum value for each octet is 0 and maximum value is 255. Each device on a network must have unique IP address to communicate with other network devices. Example of IP address is 192.168.1.1
What are the similarities between TCP/IP and OSI Models?
The main similarities between the two models are:
Both of the models share common application layer.
Both models have comparable transport and network layers.
Both models assume that packets are switched.
All the layers from bottom till Transport Layer provides End to End Transport Service.
All the layers above the Transport Layer are application oriented and use the Transport Service.
