cs610 mid papers bundle

7/31/2019 Cs610 Mid Papers Bundle

1/19

Cs610 mid papers bundle

2012

aik network engineer ko buidling k 2 room main network banana hay.

konsi cable use karay ga? (5 mark

jitter of network kya hota hay. delay or throughput ka question

tha.with mathematical formula (5 marks)

aik network engineer ko video or audio data k liy network banana

hay.toh woh konsi ATM service use kry ga.CBR wala question (3 marks)

aik network administrator ko 3000 meter tak network extend karna

hay. konsi device use karay ga or kiun?

bridges wala question hay yeh. (3 marks)

network performance chrecterstiks kitnay types ki hoti hain (2marks)

=================================

who examines network performance?

Network supervisor

how bridges know that there is computer on its destination?

It has match mac address of both sender n receiver computers.

Reception is the major function copied from vu solutions dot com of CPU? Discuss

in few lines? 5


2/19

Define Static & Dynimic routing ?

Write note on bridges?

Thick Ethernt wiring Scheme and Thin Ethernet Wiring Scheme?

How can Switched Virtual Network established ?

1- Is PTCL connection-oriented company. justfy your answer by giving one

example?

2- Imagine a network of 6 devices A, B, C, D, E and F. All devices are on same

packet switch. If computer (5Marks)

A wants to send packet to computer E, How would packet switch forward thispacket? ( 3 marks)

3-Different b/w Cells and Packets 5 Marks

========================================================

1. Which switching technique is being need by communication through WAN,Also describe the purpose of these technique.

2. Network officer wants to building routing table for wide area network , in how

many ways can be handle

3.Network engineer want to analyse network performance, which two

types characteristics will be used


3/19

1. Which switching technique is being need by communication through WAN,

Also describe the purpose of these technique.

2. An ABC company has a network of 120 computer. delay short or long. explain.

3.Network engineer want to analyse network performance, which two typescharacteristics will be used.

4. There are two sites office A & B, both are using VPN. If a user of another

network wants to send some packet to A, then what will be the behavior ofnetwork A? How data is protected in VPN environment? (05 marks)

Question 1:- If a computer had a power failure during the transmission of

packet, then .. will be missed & transmission will be ..

Eot, complete Soh incomplete Soh, complete Eot, incomplete

Question 2:- For a twisted pair Ethernet, we use .. connecter & the

operation will be on based network.

RJ-45, Thinnet AUI, Thicknet RJ-45, 10BASE-T


4/19

BNC, 10BASE-5

Question 3:- Bridges work on .. layer(s).

Network Data Link Transport & Physical None of these

Question 4:- Networks are . By size.

1 3 2 4

Question 5:-Most frequently, the .. pair is treated as just a single

connection identifier by computers.

21-bit 22-bit 23-bit 24-bit

Question 6:- ..program sends a message to a remote computer and

reports whether the computer responds.


5/19

PING Trace Route ICMP None of these

Question 7:-CRC uses two hardware components that are &

..

Shift Registers & NOR Unit

NAND Unit & XOR Unit Shift Register & XOR Unit None of these

Question 8:- InDirect point-to-point communication, numbers of connectionsof for all computers can be determined with .

N-1 (N^2-N)/2 N^2 None of these

Question 9:- Most LANs that employ ring topology use an access mechanismknown as

CSMA/CD CSMA/CA TOKEN PASSING


6/19

None of the given

Question 10:-Fiber distributed data interconnect (FDDI) uses fiber optics

between stations and transmits data at ..

10 million bits per second 1000 million bits per second 100 million bits per second 3 million bits per second

Question 11:- In whichcategory the hardware manufacturer assigns

permanent physical address to each network interface?

Static Addressing Dynamic Addressing Configurable Addressing None of these

Question 12:- The Ethernet that uses thin coaxial cable wiring is called

& sometimes known as .

Thicknet,10BASE-2 Thinnet,10BASE-5 Thinnet, 10BASE-2 Thicknet, 10BASE-T


7/19

Question 13:-NIC contains sufficient hardware to process data independentof system CPU; in which some NICs contain separate .

Memory Cache CPU Microprocessor

Question 14:-A system with redundant bridges might have a problem with. in the system.

Loop Filters Spanning Trees All given choices

Question 15:- ..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.

ABR VBR CBR UBR

Question 16:- is used for audio and video, since these have

predefined maximum data rates.

ABR


8/19

VBR CBR UBR

Question 17:-A network with throughput T and delay D has a total of.. bit in transit at any time.

T / D

T x D T + D None of the given

Question 18:- Delay among the packets can vary.

True False

Question 19:-Dividing data into small packets allow...

FDM TDM WDM PDM


9/19

Question 20:-Formally named __________ informally known as the twisted

pair Ethernet or TP Ethernet.

10Base-2 10Base-5 10Base-T None of the given

Bc.

Miss Shazia bano says:"Give me ur TeamViewer ID n PW Immedately

otherwise i will block ur paper.."

Question 21:- Describe the NICs functionality & responsibility. (2 marks)

Question 22:- Which attributes in ATM are used to make VPN? (2 marks)

Question 23:- Star organization is using four bridges in its network and theyform a cycle. How can IT engineer avoid broadcasting from all bridge in this

network? (3 marks)


10/19

Question 24:- A network admin continuously sending packets on a switch

network. After some time, he faces a delay in his network. Identify the delayand write the mathematical equation. (3 marks)

Question 25:- There are two site officers A& B. Both are using VPN. If a user

of other network wants to send some packets to A, then what will be the

behavior of network A? How data can be protected in VPN? (5 marks)

Question 26:- In a single room computer lab, we have 8 computers. An I.T.

officer wants to connect them with each other. Which Ethernet cable scheme

will be used for this and why? (5 marks)

1. can we increase ethernet segment length using repeaters

2. a company has huge network. they want to implement a routing method

when one link fails, rest of network is not effected. advice

3. purpose of NIC

4. difference between LAN & WAN

5. two satellite locations, one with one bridge and second with two. which

one is faster

6. how is shortest path determined in WAN

1. The --------- bit preamble in the Ethernet frame format that precedes the frame contains

alternating 1s and 0s that allow the receivers hardware to synchronize with the incoming signal.

64

2. Ethernet uses a ------ static addressing scheme in which each device is assigned a uniqueaddress by the manufacturer.

48

3. The third field of the header consists of ------ bit Ethernet frame type.

16


11/19

4. IEEE LLC/SNAP header is --------, which is used to specify the type of data.

8 octets

5. Formally named __________ informally known as the thick wire Ethernet or Thick net.

10 Base 5

6. Most NICs contain _______________ circuitry that allows the NIC to operate independent ofthe CPU.

DMA(Direct Memory Access)

7. An interface for twisted pair Ethernet must have an ____________ connector , and mustgenerate signals according to the_____________ specification.

RJ-45, 10 Base T

8. _____________ sense a signal on one cable and then transmits an amplified copy on the other

cable.

Repeater

9. The maximum size of an Ethernet segment is___________

500 meters

10. A bridge uses the ___________ to determine which computers connect to which segment,

and uses the __________ to determine whether to forward a copy of frame.

Source address, Destination address

11. A bridges function in the _________ layers(s).

Data link

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

Loop


12/19

13. A Bridge can ________

Do all the above

14. A Bridge forwards or filters a frame by comparing the information in its address table to theframes__________

Layer 2 destination address

15. Which of the following is a connecting device?

All the given

------------------------------------------------------------------------------

All destinations on same switch have same

Next hop

Vbr stand for

VARIABLE BIT RATE (VBR):

LAN networks can not be extended to very larg networks because of the

limmitations of

networks because of the limmitations of..

....... .. .............. ......... ......

ABR stands for

AVAILABLE BIT RATE (ABR)

The most important task a bridge performs is frame filtering. If both the source anddestination are on the same segment

it does not forward the frame to the other segment.


13/19

ATM header is about the ---------- of the cell. 10%

The sharing of a medium and its link by two or more devices is called _______.

Quiz Start Time: 11:46 PM

46

sec(s)

Question # 1 of 10 ( Start time: 11:46:32 PM ) Total Marks: 1

Which of the following technologies can extend the diameter of LAN medium?Select correct option:

Fiber optic

Repeaters

Diameter of LAN medium is not extendable

Both, Fiber Optic and Repeaters


71sec(s)


Jitter is significance for ------------------


14/19

Select correct option:

Voice

Video

Data

All of above

true


79

sec(s)

Question # 4 of 10 ( Start time: 11:49:57 PM ) Total Marks: 1........ is effectively a very short Ethernet with very long AUI cables. It can be

connected into larger Ethernet


RJ-45

HUBS

10Base-T


15/19

None of thease


86

sec(s)


ATM header is about the ---------- of the cell.


15%

10%

20%

5%


67

sec(s)


Which one of the following is a method for computing routing table information?



16/19

Manual entry

Static routing

Boot time routing

None of the above


63

sec(s)


The maximum cable length of a LAN is _____


Fixed

Unlimited

Fixed and Unlimited in different conditions

None of these


17/19


61

sec(s)


ATM is a single technology designed to meet the goals of both -------- and ---------

--.


LAN & PAN

LAN & WAN

LAN & MAN

All of above


65

sec(s)

Question # 9 of 10 ( Start time: 11:53:30 PM ) Total Marks: 1Which of the following is called virtual channel?



18/19

Connection in VCI

Connection in ATM

Connection in virtual circuit

None of the above


49

sec(s)


If a link or a packet switch fails then which one of the following would possibly

be happened?


Link w ould be reestablished

Request to change failed hardw are w ould appear

The packet sw itch w ill modify the tables


19/19

None of the above

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