Networking Basics
Assignment A
1. Describe the functioning of Bridge, Gateway, Hub and Switch with their importance in network communication.
2. Differentiate: LAN, MAN and WAN with their pros and cons
3. How Transmission Media plays important role in Analog and Digital Data Transmission. Explain
4. Describe the functioning of Wireless Transmission with the help of an example.
5. Explain the functioning of remote login. How TELNET plays important role in this regard?
6. Describe the working methodology of OSI Model. Draw the figure of all the layers of OSI
7. Defferentiate internet & intranet with their advantages and disadvantages by giving suitable examples.
8. Explain the importance of information security. Which methods will you use to secure the information in your organization?
Assignment B
Case Detail:
Since the rate at which information is transmitted over a channel varies, communicating computer devices must be capable of transmitting and receiving data at differing rates. Data rates are measured in bits per second or bps. Each type of channel has a maximum rate at which data can be transmitted, based on the type of media used in the channel and its design. Generally, channels with data rates less than 300 bps are referred to as narrowband. Rates of 300 to 9,600 bps are known as voiceband or voice-grade. The fastest channels are referred to as wideband or broadband. They are considered to be high-speed channels and can carry data at rates in the hundreds of thousands or even millions of bits-per-second. These high-speed channels require the use of special coaxial or fiber-optic cables.
Data flow can be managed in one of three modes - simplex, half-duplex, or full-duplex. These three modes refer to the direction of the data flow. If you are using a communications system in the simplex mode, data can only travel through the channel in one direction. Since this mode restricts communication to a one-way transmission, either sending or receiving, it is not used very often for communications between two computers. Using the half-duplex mode, on the other hand, data can be sent in both directions, but not at the same time. Using the full-duplex mode, data can be transmitted in both directions at the same time. Systems with special types of wiring may be able to transmit data at higher speeds using the full-duplex mode. However, the half-duplex mode is more commonly used when transmitting data between two computers.
Question
1. Explain with example that full duplex is better than half duplex communication
2. How can you say that fibre optical cables are better than other physical media? Explain with real life examples.
3. Describe the networking scenario where wireless communication is better than other communication mode. Justify your answer also.
Assignment C
Question No. 1 Marks - 10
A network that needs human beings to manually route signals is called....
Options
- Fiber Optic Network
- Bus Network
- T-switched network
- Ring network
Question No. 2 Marks - 10
TCP/IP................. layer corresponds to the OSI models to three layers.
Options
- Application
- Presentation
- Session
- Transport
Question No. 3 Marks - 10
Which of the transport layer protocols is connectionless?
Options
- UDP
- TCP
- FTP
- Nvt1
Question No. 4 Marks - 10
Which of the following applications allows a user to access and change remote files without actual transfer?
Options
- DNS
- FTP
- NFS
- Telnet
Question No. 5 Marks - 10
The data unit in the TCP/IP data link layer called a.....
Options
- Message
- Segment
- Datagram
- Frame
Question No. 6 Marks - 10
DNS can obtain the................. of host if its domain name is known and vice versa.
Options
- Station address
- IP address
- Port address
- Checksum
Question No. 7 Marks - 10
Which of the following OSI layers correspond to TCP/IP's application layer?
Options
- Application
- Presentation
- Session
- All of the above
Question No. 8 Marks - 10
Devices on one network can communicate with devices on another network via a.......
Options
- File Server
- Utility Server
- Printer Server
- Gateway
Question No. 9 Marks - 10
A communication device that combines transmissions from several I/O devices into one line is a
Options
- Concentrator
- Modifier
- Multiplexer
- Full duplex file
Question No. 10 Marks - 10
Which layers of the OSI determines the interface often system with the user?
Options
- Network
- Application
- Data link
- Session
Question No. 11 Marks - 10
Which of the following of the TCP/IP protocols is the used for transferring files from one machine to another?
Options
- FTP
- SNMP
- SMTP
- Rpe
Question No. 12 Marks - 10
In FDDI, data normally travel on..................
Options
- Physical
- Data link
- Network
- A and B
Question No. 13 Marks - 10
In FDDI, data normally travel on..................
Options
- The primary ring
- the Secondary ring
- Both rings
- Neither ring
Question No. 14 Marks - 10
The ............layer of OSI model can use the trailer of the frame for error detection.
Options
- Physical
- Data link
- Transport
- Presentation
Question No. 15 Marks - 10
In a ................topology, if there are n devices in a network, each device has n-1 ports for cables.
Options
- Mesh
- Star
- Bus
- Ring
Question No. 16 Marks - 10
Another name for Usenet is
Options
- Gopher
- Newsgroups
- Browser
- CERN
Question No. 17 Marks - 10
The standard suit of protocols used by the Internet, Intranets, extranets and some other networks.
Options
- TCP/IP
- Protocol
- Open system
- Internet work processor
Question No. 18 Marks - 10
i) In bus topology, heavy Network traffic slows down the bus speed. ii) It is multipoint configuration. State whether the following is True or False.
Options
- True, True
- True, False
- False, True
- False, False
Question No. 19 Marks - 10
Which of the following is the logical topology?
Options
- Bus
- Tree
- Star
- Both A and B
Question No. 20 Marks - 10
Which of the following is/ are the drawbacks of Ring Topology?
Options
- Failure of one computer, can affect the whole network
- Adding or removing the computers disturbs the network activity.
- If the central hub fails, the whole network fails to operate.
- both A and B
Question No. 21 Marks - 10
The computer network is
Options
- Network computer with cable
- Network computer without cable
- Both of the above
- None of the above
Question No. 22 Marks - 10
FDDI used which type of physical topology?
Options
- Bus
- Ring
- Star
- Tree
Question No. 23 Marks - 10
FTP stands for
Options
- File transfer protocol
- File transmission protocol
- Form transfer protocol
- Form transmission protocol
Question No. 24 Marks - 10
Ethernet system uses which of the following technology.
Options
- Bus
- Ring
- Star
- Tree
Question No. 25 Marks - 10
Which of the following are the network services?
Options
- File service
- Print service
- Database service
- All of the above
Question No. 26 Marks - 10
If all devices are connected to a central hub, then topology is called
Options
- Bus Topology
- Ring Topology
- Star Topology
- Tree Topology
Question No. 27 Marks - 10
FDDI stands for
Options
- Fiber Distributed Data Interface
- Fiber Data Distributed Interface
- Fiber Dual Distributed Interface
- Fiber Distributed Data Interface
Question No. 28 Marks - 10
Which of the following is an application layer service?
Options
- Network virtual terminal
- File transfer, access and management
- Mail service
- All of the above
Question No. 29 Marks - 10
Which is the main function of transport layer?
Options
- Node to node delivery B) C) D)
- End to end delivery
- Synchronization
- Updating and maintaining routing tables
Question No. 30 Marks - 10
The ............ layer change bits onto electromagnetic signals.
Options
- Physical
- Transport
- Data Link
- Presentation
Question No. 31 Marks - 10
In mesh topology, relationship between one device and another is..............
Options
- Primary to peer
- Peer to primary
- Primary to secondary
- Peer to Peer
Question No. 32 Marks - 10
The performance of data communications network depends on..............
Options
- Number of users
- The hardware and software
- The transmission
- All of the above
Question No. 33 Marks - 10
Find out the OSI layer, which performs token management.
Options
- Network Layer
- Transport Layer
- Session Layer
- Presentation Layer
Question No. 34 Marks - 10
The name of the protocol which provides virtual terminal in TCP/IP model is.
Options
- Telnet
- SMTP
- HTTP
- FTP
Question No. 35 Marks - 10
The layer one of the OSI model is
Options
- Physical layer
- Link layer
- Router layer
- Broadcast layer
Question No. 36 Marks - 10
What is the name of the network topology in which there are bi-directional links between each possible node?
Options
- Rring
- Star
- Tree
- Mesh
Question No. 37 Marks - 10
What is the commonly used unit for measuring the speed of data transmission?
Options
- Bytes per second
- Baud
- Bits per second
- Both B and C
Question No. 38 Marks - 10
. Which of the communication modes support two way traffic but in only once direction of a time?
Options
- Simplex
- Half-duplex
- Three - quarter's duplex
- Full duplex
Question No. 39 Marks - 10
The loss in signal power as light travels down the fiber is called.............
Options
- Attenuation
- Propagation
- Scattering
- Nterruption
Question No. 40 Marks - 10
Which of the following TCP/IP protocols is used for transferring files form one machine to another.
Options
- FTP
- SNMP
- SMTP
- RPC