Computer Network
Question State the difference between connection less and connection oriented networking system.
NU Year 2017
Question Define computer network. Write down some of the design issues that should be considered for an efficient network.
NU Year 2017
Question State the differences between connection less and connection oriented networking system.
NU Year 2017
Question What is ISO-OSI reference model? Why TCP/IP model is more popular than OSl model? Which layer OSl is used forthe following :-To route packets;To convert packet to frame;To detect and correct errors;To run services like DNS, FTP, Telnet etc.
NU Year 2017
Question What do you mean by transmission? What can be the different direction of transmission?
NU Year 2017
Question What is topology?- Draw a hybrid topology with a star backbone and four ring networks?
NU Year 2017
Question Define Frame Relay network. Explain and compare Frame Relay and X-25 network architecture.
NU Year 2017
Question Draw the Frame relay frame and also state the purpose of FECN, BECN fields.
NU Year 2017
Question What is the purpose of ATM Adaptation layer? Describe the AAL2, AAL3 and AALS layers.
NU Year 2017
Question Describe IPv4 header format.
NU Year 2017
Question Write down the functions of Gateway, Routers, Repeaters, Bridges, Hubs and Switches.
NU Year 2017
Question Differentiate between hard handoff and soft handoff procedure. What is the relationship between a base station and mobile switching center?
NU Year 2017
Question Explain WLAN architecture.
NU Year 2017
Question Write down two problems in 802 11 MAC sub la) er protocol.Discuss in detail about the wireless IAN MAC sub layers.
NU Year 2017
Question What is the purpose of the Address Resolution Protocol (ARP)? ls the size of the ARP packet fixed? Explain.
NU Year 2017
Question What is satellite orbit? Briefly discuss satellite technology.
NU Year 2017
Question Why is DNS necessary? State its significance.
NU Year 2017
Question Discuss the Dijkstra Algorithm for routing shortest path of a network.
NU Year 2017
Question An organization is granted the block 16.0.0.0/8. The administrator wants to create 500 fixed length subnet :-(i) Find the subnet mask.(ii) Find the number of addresses in each subnet.(iii) Find the first and last addresses in subnet 1.(m Find the first and last addresses in subnet 500.
NU Year 2017
Question Compare the data rates for standard Ethernet. Fast Ethernet, Gigabit Ethernet and Ten Gigabit Ethernet.
NU Year 2017
Question What are four general techniques to improve quality of services (QoS)?
NU Year 2017
Question Compare the way SMTP and HTTP transmit the images. Which one do you think is more efficient? Why?
NU Year 2017
Question Why cryptography is needed in networking? What is the key idea used in public key encryption system?
NU Year 2017
Question What is Routing? Explain the working principle of distance vector routing protocol with a proper example.
NU Year 2017
Question Define what is Network?
NU Year 2017
Question What are the criteria necessary for an effective and efficient network?
Institute Model Institute of Science & Technology (MIST) 2016
Question Define routing? List the Dynamic Routing and it's routing protocols characteristics?
Institute Institute of Science and Technology, Bangladesh 2016
Question Define Dynamic Routing Protocols Classification
Institute Government B. L. College Khulna 2018
Question What is a peer-peer question?
Institute Institute of Science and Technology, Bangladesh 2017
Question Which layers are user support layer?
Institute Eden Mohila College 2014
Question What is the range of addresses in the class of internet addresses?
Institute Joypurhat Govt. College 2017
Question What are the important topologies for networks?
Institute Ahsanullah Institute of Information and Communication Technology 2015
Question Define computer network. Breifly describe the components of a data communication system.
NU Year 2016
Question What are the advantages of a multipoint connection over a point-to-point connection?
NU Year 2016
Question What is IOT? For n device in a network, what is the number of cable links required for a mesh, ring,bus and star topology?
NU Year 2016
Question What is protocol? Why standards important for protocols?
NU Year 2016
Question Explain the basic operation of frame relay
NU Year 2016
Question Classy the different classes of IP address with its range and also specify the list of all private IP address.
NU Year 2016
Question What is the purpose of sub-netting?How is making reltated to sub-netting?
NU Year 2016
Question With suitable diagram describe the operation of TCP/IP action : (i) action to sender (ii) action to receiver (iii) action to rounter
NU Year 2016
Question Explain why padding is unnecessary in AAL 1, but necessary in other AAls?
NU Year 2016
Question What are the advantages of dividing an Ethernet LAN with a bridge? Explain why is there no need for CSMA/CD on a full-duplex Ethernet LAN?
NU Year 2016
Question If an application uses AAL 3/4 and there are 47,787 bytes of data coming into the CS, how many padding bytes are necessary? How many data units get passed from the SAR to the ATM layer? How many cells are produced?
NU Year 2016
Question The address field of a Frame Relay frame is 1011000000010111. what is the DLCI(in decimal)? Mention different types of mobility in a wireless LAN
NU Year 2016
Question What are the differences between classful addressing and classless addressing in IPv4?
NU Year 2016
Question Explain why most bof the addresses in class A are wasted and also explain why a medium-size or large-size corporationdoes not want a block of class C address.
NU Year 2016
Question Explain the procedure for checksum calculation and verification in the IPv4 protocol. What part of an IPv4 packet is covered in the checksum calculation? are options if present, included in the calculation?
NU Year 2016
Question An organization is granted the block 130.56.0.0/16. The administrator wants to create 1024 subnets: (i) Find the subnet mask. (ii) Find the number of addresses in each subne. (iii) Find the first and last address in subnet 1. (iv) Find the first and last address in subnet 1024
NU Year 2016
Question What is traffic shaping in congestion control? Describe traffic shaping algorithm in congestion control.
NU Year 2016
Question What are the advantages and disadvantages of public key encryption?
NU Year 2016
Question What is fibre channel? What are the key elements of it?
NU Year 2016
Question Give the transmission media and topologies recommended for fibre Channel(FC)
NU Year 2016
Question Write short notes of the following (any four):- (a) Satellite orbit; (b) SNMP; (c) Shortest path routing; (d) Packet switching; (e) QoS in multimedia network; (f) IPV6 next headers.
NU Year 2016