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Virtual University VU CS610- Computer Network Final Term Past Solved Unsolved 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 All Year Past Papers

Virtual University VU CS610- Computer Network Final Term Past Solved Unsolved 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 All Year Past Papers

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Virtual University VU CS610- Computer Network Final Term Past Solved Unsolved 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 All Year Past Papers

VU CS610- Computer Network FinalTerm solved unsolved past papers Spring 2010

VU CS610- Computer Network FinalTerm Solved Unsolved Past Papers Spring 2010

 

 

 

 

 

FINALTERM   EXAMINATION

Spring 2010

CS610- Computer Network

Ref No: 1578657
Time: 90 min
Marks: 60

Student Info

Student ID:

 

Center:

 

Exam Date:

 

 

For Teacher’s Use Only

Q No.        1            2            3            4            5            6            7            8         Total

Marks

Q No.        9           10          11          12          13          14          15          16

Marks

Q No.       17          18          19          20          21          22          23          24

Marks

Q No.       25          26          27          28          29          30          31          32

Marks

Q No.       33          34          35          36          37          38          39          40

Marks

 

 

 

 

 

 

 

 

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?

 

VU CS610- Computer Network FinalTerm Solved Unsolved Past Papers Spring 2010

VU CS610- Computer Network FinalTerm solved unsolved past papers Spring 2010

VU CS610- Computer Network FinalTerm Solved Unsolved Past Papers Spring 2010

Spring 2010

CS610- Computer Network

Dated:- 13-08-2010

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

In Direct point to point communication adding the Nth computer requires———— new connections.
None of the given

N2

N-1

(N2 -N)/2

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

In ————-, network occupies the smaller area like a room a floor or a building

LAN

WAN
MAN

None of the given

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

The third field of the header consists of —— bit Ethernet frame type.
48

32

16

8

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

The maximum size of an Ethernet segment is___________
250 meters

500 meters

700 meters ( may be I select )

None of the given

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

The network with Throughput T and Delay D has a total ————— bits in transit at a time.
D + T

D – T

D X T

D / T

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

___________ places the boundary between the first and second octets

Class A

Class B
Class C
Class D

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

Router detects datagram ——— than network MTU and then it splits into pieces and each piece is ——
—-than outbound network MTU.

Larger, smaller

Larger, larger
Smaller, larger
Smaller, smaller

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

 

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

Connectionless service, Message-Oriented protocol, best-effort delivery service, arbitrary interaction &
operating system independent are the characteristics of ___________________
TCP

UDP

IP

None of the given

 

 

 

WWW.VUJUNGLE.COM

MNADEEM204@GMAIL.COM

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

———– provide Application to application communication it also called end to end communication
IP

TP

RIP

None of the given

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

A routing table contains_______

The destination network ID

The hop count to reach the network

The router ID of the next hop

All of the given

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

Which of the following protocols allows the sender and receiver to enforce polices.
RIP

OSPF

BGP

RIP and OSPF

Question No: 13      ( 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

Non of these

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

_______ includes a 32-bits address mask with each address, which allows the address to be classful, classless, or subnetted.

RIP

OSPF

BGP

None of the given

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

One repeater —————, two repeaters ————— the maximum cable length limitation.

Double, triple

Double, 4 time
half, triple

Double, half

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

ICMP message transport is acted upon by getting ICMP encrypted in IP.

True

False

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

Like most application programs, a client and server use a transport protocol to communicate.

True

False

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

Mapping between a protocol address and a hardware address is called Address Resolution.

True

False

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

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

True

False

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

A single networking technology is best for all needs.

True

False

 

 

 

WWW.VUJUNGLE.COM

MNADEEM204@GMAIL.COM

Question No: 21      ( 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: 22      ( Marks: 1 ) – Please choose one

Router detects datagram———than network MTU

Larger

Smaller

None of given
Equal

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

Information can flow in either or both direction between

Clients

Clients and servers

Servers

None of given

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

On of the design goals for unicast route propagation is __________.

consistency
inconsistency

stability

dynamic addressing

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

IPV6 address consists of ________

32 Bits
64 Bits

128 Bits

none of the given

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

UDP offers application programs a Message-Oriented Interface, applications can depend on protocol to preserve data boundaries.

True

False

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

In case TCP, retransmission, acknowledgment from a computer on LAN are expected to arrive within
Seconds

Micro seconds

Milliseconds( I think)

Nanoseconds

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

Twice NAT is another variant of NAT. it is used with site that runs server. In this process NAT box is connected to Domain Name.

True

False

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

A network uses a ——arranges for computers to be connected in a closed loop.

Star Topology

Ring Topology

Bus Topology

None of the given

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

Protocol addresses are abstractions provided by ___________.

hardware

software

operating system
internet

 

 

 

WWW.VUJUNGLE.COM

MNADEEM204@GMAIL.COM

Question No: 31      ( Marks: 2)

Does OSPF only share information within area or does it allow communication between areas? Solution

OSPF only share information within area

Question No: 32      ( Marks: 2 )

Define what is extension head in IPv6
Solution

Additional information is stored in optional extension headers, followed by data.

Question No: 33      ( Marks: 2 )

What is implementation of NAT?
Solution

NAT is useful at a residence with Cable Modem or DSL connectivity as it allows

the customer to have multiple computers at home without requiring an IP address for
each of them. Instead a single IP address is used for all the computers. NAT software
allows a PC to connect with the Internet and act as a NAT device at the same time.

Question No: 34      ( Marks: 2 )

Which wireless standard is used in WIFI technology? Solution

IEEE 802.11 is standard wireless LAN

Question No: 35      ( Marks: 2 )

How ICMP can be used to trace route?
Solution

 

 

Question No: 36      ( Marks: 3 )

Write a note on “limited connectivity” of Wireless LAN. Solution

 

 

Question No: 37      ( Marks: 3 )

In internet routing ho can a host join or leave group? Solution

 

 

 

Question No: 38      ( Marks: 3 )

Provide three characteristics of UDP?
Solution

• It is an end-to-end protocol. It provides application-to-application communication.

• It provides connectionless service.

• It is a Message-Oriented protocol.

• It uses best-effort delivery service.

• It follows arbitrary interaction.

• It is operating system independent

Question No: 39      ( Marks: 5 )

What is meant by massage oriented interface in UDP also give the advantages and disadvantages of interface

Solution

ADVANTAGES:

• Applications can depend on protocol to preserve data boundaries.

 

 

 

WWW.VUJUNGLE.COM

MNADEEM204@GMAIL.COM

DISADVANTAGES:

• Each UDP message must fit into a single IP datagram.

• It can result to an inefficient use of the underlying network

Question No: 40      ( Marks: 5 )

What is the role of OSPF?

 

VU CS610- Computer Network FinalTerm Solved Unsolved Past Papers Spring 2010

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