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Saturday, December 25, 2010

Complete Solved Finalterm paper of CS610- Computer Network 2010

FINALTERM  EXAMINATION
Spring 2010
CS610- Computer Network
Ref No:
Time: 90 min
Marks: 60

Student Info
Student ID:


Center:


Exam Date:






Question No: 1      ( Marks: 1 ) - Please choose one


A ---------- relies on the hardware manufacturer to assign a unique physical address to each network interface.



       ► Static addressing scheme

       Configurable addressing scheme


       Dynamic addressing scheme

       None of the given


Question No: 2      ( Marks: 1 ) - Please choose one


An interface for thin  Ethernet must have an ____________  connector , and must generate signals according to the_____________ specification.

       ► RJ-45, 10 Base T

       RJ-45, 10 Base 5


       BNC, 10 Base 2


       BNC, 10 Base T


Question No: 3      ( Marks: 1 ) - Please choose one


A system with redundant bridges might have a problem with_______ in the system.


       Loop

       Filters

       Spanning Trees

       All given choices


Question No: 4      ( Marks: 1 ) - Please choose one


A Bridge can ________


       Filter a frame

       Forward a frame

       Extend a LAN

       ► Do all the above


Question No: 5      ( Marks: 1 ) - Please choose one


________ is used for typical data applications (where the data rate may be unknown and bursty) and allows use of whatever bandwidth is available at a given time.

       Constant Bit Rate (CBR) service

       Variable Bit Rate (VBR) service

       ► Available Bit Rate (ABR) service

       None of the given


Question No: 6      ( Marks: 1 ) - Please choose one


ATM assigns each VC a _____________ identifier that is divided two parts to produce a hierarchy.

       21-bit

       22-bit

       23-bit

       ► 24-bit


Question No: 7      ( Marks: 1 ) - Please choose one


________ of TCP/IP layering model, corresponds to basic network hardware.


       ► Physical Layer

       Network Interface Layer

       Internet Layer

       Transport Layer




Question No: 8      ( Marks: 1 ) - Please choose one


___________ places the boundary between the second and third octets

       ► Class A

       Class B

       Class C

       Class D


Question No: 9      ( Marks: 1 ) - Please choose one


UDP and TCP are both_________ layer protocols


       Physical

       Data link

       Network


       ► Transport


Question No: 10      ( Marks: 1 ) - Please choose one


Connection-oriented service, Point-to-point, Complete reliability, Full-duplex communication, Stream interface, Reliable connection startup and Graceful connection shutdown are the services provided by__________

       IP

       None of the given

       ► TCP

       UDP


Question No: 11      ( Marks: 1 ) - Please choose one


_______ protocols of TCP/IP layering model specify how to ensure reliable transfer.

       Physical Layer

       Network Interface Layer

       Internet Layer

       ► Transport Layer




Question No: 12      ( Marks: 1 ) - Please choose one


________identifies which application program on receiving computer should receive the data

       Logical address
Source port
Logical address
None of the given


       Source port

       ► Destination Port

       None of the given



Question No: 13      ( Marks: 1 ) - Please choose one


________ identifies the application program that sent the data.

        Destination Port


       ► Source port

       Logical address

       None of the given


Question No: 14      ( Marks: 1 ) - Please choose one


Which of the following are interior routing protocols?


       ► RIP

       OSPF

       BGP

       RIP and OSPF




Question No: 15      ( Marks: 1 ) - Please choose one


The Border Gateway Protocol (BGP) uses_________ for all communication


       UDP

       ► TCP

       Both UDP and TCP


       None of the given


Question No: 16      ( Marks: 1 ) - Please choose one


__________measures distance in network hops, where each network between the source and destination counts as single hop.

       BGP

       OSPF

       ► RIP

       None of the given




Question No: 17      ( Marks: 1 ) - Please choose one


OSPF is based on--------


       Distance vector routing

       ► Link state routing

       Path vector routing

       Distance vector routing and Link state routing



Question No: 18      ( Marks: 1 ) - Please choose one


_________ performs local multicast and uses IP-in-IP encapsulation to send multicast datagrams from one site on the Internet to another.

       ► Distance Vector Multicast Routing Protocol (DVMRP)

       Core Based Trees (CBT)


       Protocol Independent Multicast_ Sparse Mode (PIM-SM)

       Protocol Independent Multicast _ Dense Mode (PIM-DM)




Question No: 19      ( Marks: 1 ) - Please choose one


The length of time required to send a variable length packet is variable and does not require a complicated interrupt scheme to detect completion of transmission.

       True

       False


Question No: 20      ( Marks: 1 ) - Please choose one


NEXT HEADER field in the base header defines type of header and it appears at end of fixed-size base header.

       True

       False



Question No: 21      ( Marks: 1 ) - Please choose one


Although message exchange can be used to bind addresses, sending a request for each binding is hopelessly inefficient.

       True

       False



Question No: 22      ( Marks: 1 ) - Please choose one


Address mask defines how many bits of address are in suffix?

       True

       False


Question No: 23      ( Marks: 1 ) - Please choose one


A computer attached to a given network can only communicate with other computers attached to the same network. Is this a problem with multiple networks?


       True

       False


Question No: 24      ( Marks: 1 ) - Please choose one


In the 1970s large organizations began to acquire multiple networks. Each network in the organization formed island. Employees needed to choose a computer appropriate for each task. So they needed multiple screens, keyboards and computers.


       False

       True



Question No: 25      ( Marks: 1 ) - Please choose one


The term self-identifying is used for Classful IP addresses because the class of the address can be computed from the address__________.  

       itself

       prefix

       suffix

       mask


Question No: 26      ( Marks: 1 ) - Please choose one


In which method of Address Resolution Protocol the protocol address independent of hardware address?
Were "T" stands for Table lookup, "C" for Closed-form Computation and "D" for Data Exchange?

       T, C

       D

       C

       T, D


Question No: 27      ( Marks: 1 ) - Please choose one


In which method of Address Resolution Protocol the protocol address is determined by hardware address?
Were "T" stands for Table lookup, "C" for Closed-form Computation and "D" for Data Exchange?

       T

       D

       C

       T, C


Question No: 28      ( Marks: 1 ) - Please choose one


Reconstruction of original datagram is called reassembly.

       True

       False



Question No: 29      ( Marks: 1 ) - Please choose one


A computer needs a complete stack of protocols to run either a client or a server.

       True

       False


Question No: 30      ( Marks: 1 ) - Please choose one


TCP uses _______ mechanism to control the flow of data.

       door

       window

       acknowledgment

       retransmission



Question No: 31      ( Marks: 2 )


To solve the problem the routers and networks in the Internet are divided into groups. How large do you think are these groups?



Question No: 32      ( Marks: 2 )


Traceroute continues to increment the Time To Live until the value is large enough for the datagram to reach its final destination. What happens when the TTL is sufficiently large for the datagram to reach its destination?




Question No: 33      ( Marks: 2 )


How can TCP monitor internet delays?


Question No: 34      ( Marks: 2 )


Which wireless standard is used in WIFI technology?



Question No: 35      ( Marks: 3 )


How does IP software reassemble fragments that arrive out of order?



Question No: 36      ( Marks: 3 )


What kind of information is in a routing table?



Question No: 37      ( Marks: 3 )


Define frames without type field?



Question No: 38      ( Marks: 3 )


What is the meaning of Facilities For Transit Routing as a characteristic of the Border Gateway Protocol?


Question No: 39      ( Marks: 5 )


What are the charachteristics of the Border Gateway Protocol?


Question No: 40      ( Marks: 5 )


Describe how NAT can be usefull for residence with cable modem or DSL?

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