Data Communication and Networking in English Session 1
Short Questions
Q#1: Define Protocol with an example?
Ans: The set of rule that governs data communication is known as Protocol.
Example: Mobile, TCP/IP.
Ans: The set of rule that governs data communication is known as Protocol.
Example: Mobile, TCP/IP.
Ans:TCP/IP, Transmission Control Protocol/Internet Protocol, is a suite of communications protocols used to interconnect network devices on the Internet. TCP/IP implements layers of protocol stacks and each layer provides a well-defined network services to the upper layer protocol.
Q#3: Define Communication?
Ans:Communication means of sending or receiving information, such as telephone lines or computers.
Ans:Communication means of sending or receiving information, such as telephone lines or computers.
Q#4: What are the components of data communication?
Ans: A Data Communications system has five components:
1: Message, 2: sender, 3: Receiver, 4: Transmission medium, 5: Protocol.
Ans: A Data Communications system has five components:
1: Message, 2: sender, 3: Receiver, 4: Transmission medium, 5: Protocol.
Q#5: List the name of OSI Model Layers?
Ans: There are seven Types of OSI model Layers:
1: Application Layer, 2: Presentation Layer, 3: Session Layer, 4: Transport Layer5: Network Layer,
6: Data link Layer, 7: Physical Layer
1: Application Layer, 2: Presentation Layer, 3: Session Layer, 4: Transport Layer5: Network Layer,
6: Data link Layer, 7: Physical Layer
Q#6: Define Full Duplex Mode?
Ans: In Full-Duplex Mode (also called Duplex); both stations can transmit and receive. The full-duplex mode is like a two-way street with traffic flowing in both directions at the same time. In full-duplex mode, signals going in one direction share the capacity of the link: with signals going in the other direction.
Ans: In Full-Duplex Mode (also called Duplex); both stations can transmit and receive. The full-duplex mode is like a two-way street with traffic flowing in both directions at the same time. In full-duplex mode, signals going in one direction share the capacity of the link: with signals going in the other direction.
Q#7: What Is Guided Media?
Ans: Guided Media which are those that provide a conduit from one device to another include twisted pair cable, coaxial cable, and fiber optic.
Ans: Guided Media which are those that provide a conduit from one device to another include twisted pair cable, coaxial cable, and fiber optic.
Q#8: What is the signal?
Ans: Which carry some Information is Called Signal. A signal as referred to in communication systems, signal processing, and electrical engineering is a function that "conveys information about the behavior or attributes of some phenomenon".
Q#9: What is frequency?
Ans: The Number Of cycle or vibration per second is called Frequency. Unit=Hertz, Formula=f=1/T.
Q#10: What are the types of multiplexing?
Ans:There are three types of multiplexing:
1: Frequency Division Multiplexing (FDM).
2: Wavelength Division Multiplexing (WDM).
3: Time Division Multiplexing (TDM).
Ans: The Number Of cycle or vibration per second is called Frequency. Unit=Hertz, Formula=f=1/T.
Q#10: What are the types of multiplexing?
Ans:There are three types of multiplexing:
1: Frequency Division Multiplexing (FDM).
2: Wavelength Division Multiplexing (WDM).
3: Time Division Multiplexing (TDM).
Q#11: Define Error Control?
Ans: Error control is techniques that enable reliable delivery of digital data over unreliable communication channels.
Ans: Error control is techniques that enable reliable delivery of digital data over unreliable communication channels.
Q#12: Describe the function of the gateway?
Ans:A Gateway is normally a computer that operates in all five layers of the internet or the seven layers of OSI model. The gate way connecting the two systems can take a frame as it arrives from the first system, move it up to the OSI Application layer and remove the message.
Ans:A Gateway is normally a computer that operates in all five layers of the internet or the seven layers of OSI model. The gate way connecting the two systems can take a frame as it arrives from the first system, move it up to the OSI Application layer and remove the message.
Q#13: Define Packet?
Ans:Packet switching is a digital Networking Communications method that groups all transmitted Data into suitably sized blocks, called Packets, which are transmitted via a medium that may be shared by multiple simultaneous communication sessions. Packets are composed of a header and payload.
Ans:Packet switching is a digital Networking Communications method that groups all transmitted Data into suitably sized blocks, called Packets, which are transmitted via a medium that may be shared by multiple simultaneous communication sessions. Packets are composed of a header and payload.
Q#14: What is meant by a sliding window?
Ans: A Sliding Window protocol is a feature of packet-based data transmission protocols. Sliding Window protocols are used where reliable in-order delivery of packets is required, such as in the Data Link Layer (OSI model) as well as in the Transmission Control Protocol (TCP).
Ans: A Sliding Window protocol is a feature of packet-based data transmission protocols. Sliding Window protocols are used where reliable in-order delivery of packets is required, such as in the Data Link Layer (OSI model) as well as in the Transmission Control Protocol (TCP).
Q#15: Define Routers?
Ans: A Router is a three-layer device that router packets based on their logical addresses host-to-host addressing. A router normally connects LAN and WAN is the internet and has a routing table that is used for making a decision about the route.
Ans: A Router is a three-layer device that router packets based on their logical addresses host-to-host addressing. A router normally connects LAN and WAN is the internet and has a routing table that is used for making a decision about the route.
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