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Current Final Term Papers Spring 2012 Date: 16-July-2012 to 27-July-2012

Current Final Term Papers Spring 2012 Papers, July 2012, Solved Final Term Papers, Solved Papers, Solved Past Papers, Solved MCQs

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Current Final Term papers of this subject will be shared here During Exam.

7- 19-2012
mcq mostly moaaz wali file maen say thay
My current paper cs610

1) How ICMP can be used to trace a route? (Marks2)

2) network engineer works to analyze performance which two types of characteristic will
be used to check network performance (Marks 2)

3) As an IT student what do you think will common network tools such as ping work with IPv6? (Marks 2)

4) What are major problem in User Datagram Protocol (UDP) due to which we need Transmission control Protocol (tcp) (Marks 2)

5) Is TCP/IP suit include ARP. What kind of messages are in ARP (Marks 3)

6) Ping is simple and useful tool , is there any problem(s) Attached to it ? if yes explain (Marks 3)

7) Why tcp connection are called Virtual connection? (Marks 3)

8) In internet routing how does a host join or leave a group (Marks 3)

9) Network administrator received some messages on his system . how does computer deal this incoming ARP messages (Marks 5)

10) Why RIP cannot span to large network ? explain it with which other IGP is used for this purpose (Marks 5)

11) Why network administrator do not suggest for timer transmission ? Have any solution of this problem? explain it with proper reason? (Marks 5)

M.Shahid
Best of Luck friends.

CS610 Computer Network- Subjective Questions from Final Exam 2012

  • Is there any technique for achieving reliability through TCP? 5 marks
  • Give reasons for which IPv4 need to be changed ? 5 marks
  • In a star organization there are 120 systems connected in a network. Give your comments about delay, delay should be smaller or larger. Give reasons? 5 marks
  • How TCP provides reliability? 3 marks
  • How TCP and IP interact with each other? 3 marks
  • Describe four factors for network classification? 2 marks

 

Q: differentiate between IP and transport protocol with the help of example. 2 marks
Q: Give the main advantage and disadvantage of RIP. 2 marks
Q: Tel the first assignable IP address from a 128.140.80.24/20. 2 marks
Q: how was the NAT implemented. 2 marks
Q: IS ATM include LAN and WAN network. If yes what kind of connection is established. 2 marks
Q: is IP multicasting beneficial? Defend your answer with proper reason. 3 marks
Q: Can the length of the segment be increased 500 meter by adding three repeater one with each segment. It can be done or not. 3 marks
Q: How an administrator can handle static and dynamic routing. 3 marks
Q: IS TCP/IP suit include ARP. What kind of messages are in ARP. 3 marks
Q: 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? 3 marks
Q: describe characteristics of BGP. 5 marks
Q: describe IPV6 addressing notation. 5 marks
Q have there is a technique for achieving reliability through TCP. 5 marks.


40 Mcqs
5 questions of 2 marks
5 questions of 3 marks
3 questions of 5 marks

1. Is there any technique for achieving reliability through TCP? 5 marks
2. Give reasons for which IPv4 need to be changed ? 5 marks
3. In a star organization there are 120 systems connected in a
network. Give your comments about delay, delay should be smaller or
larger. Give reasons? 5 marks
4. How TCP provides reliability? 3 marks
5. How TCP and IP interact with each other? 3 marks
6. Describe four factors for network classification? 2 marks

 

thanks alot

MCQS

Attachments:

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In a star organization there are 120 systems connected in a network. Give your comments about delay, delay should be smaller or larger. Give reasons? 5 marks
Answer:

http://en.wikipedia.org/wiki/Star_network

Can the length of the segment be increased 500 meter by adding three repeater one with each segment. It can be done or not?

Answer:

For signal degradation and timing reasons, coaxial Ethernet segments had a restricted size which depended on the medium used. For example, 10BASE5 coax cables had a maximum length of 500 meters (1,640 ft). Also, as was the case with most other high-speed buses, Ethernet segments had to be terminated with a resistor at each end. For coaxial-cable-based Ethernet, each end of the cable had a 50-ohm resistor attached. Typically this resistor was built into a male BNC or N connector and attached to the last device on the bus, or, if vampire taps were in use, to the end of the cable just past the last device. If termination was not done, or if there was a break in the cable, the AC signal on the bus was reflected, rather than dissipated, when it reached the end. This reflected signal was indistinguishable from a collision, and so no communication would be able to take place.

A greater length could be obtained by an Ethernet repeater, which took the signal from one Ethernet cable and repeated it onto another cable. If a collision was detected, the repeater transmitted a jam signal onto all ports to ensure collision detection. Repeaters could be used to connect segments such that there were up to five Ethernet segments between any two hosts, three of which could have attached devices. Repeaters could detect an improperly terminated link from the continuous collisions and stop forwarding data from it. Hence they alleviated the problem of cable breakages: when an Ethernet coax segment broke, while all devices on that segment were unable to communicate, repeaters allowed the other segments to continue working - although depending on which segment was broken and the layout of the network the partitioning that resulted may have made other segments unable to reach important servers and thus effectively useless.

People recognized the advantages of cabling in a star topology, primarily that only faults at the star point will result in a badly partitioned network, and network vendors started creating repeaters having multiple ports, thus reducing the number of repeaters required at the star point. Multiport Ethernet repeaters became known as "Ethernet hubs". Network vendors such as DEC and SynOptics sold hubs that connected many 10BASE2 thin coaxial segments. There were also "multi-port transceivers" or "fan-outs". These could be connected to each other and/or a coax backbone. A well-known early example was DEC's DELNI. These devices allowed multiple hosts with AUI connections to share a single transceiver. They also allowed creation of a small standalone Ethernet segment without using a coaxial cable.


A twisted pair CAT-3 or CAT-5 cable is used to connect 10BASE-T EthernetEthernet on unshielded twisted-pair cables (UTP), beginning with StarLAN and continuing with 10BASE-T, was designed for point-to-point links only and all termination was built into the device. This changed hubs from a specialist device used at the center of large networks to a device that every twisted pair-based network with more than two machines had to use. The tree structure that resulted from this made Ethernet networks more reliable by preventing faults with (but not deliberate misbehavior of) one peer or its associated cable from affecting other devices on the network, although a failure of a hub or an inter-hub link could still affect lots of users. Also, since twisted pair Ethernet is point-to-point and terminated inside the hardware, the total empty panel space required around a port is much reduced, making it easier to design hubs with lots of ports and to integrate Ethernet onto computer motherboards.

Despite the physical star topology, hubbed Ethernet networks still use half-duplex and CSMA/CD, with only minimal activity by the hub, primarily the Collision Enforcement signal, in dealing with packet collisions. Every packet is sent to every port on the hub, so bandwidth and security problems aren't addressed. The total throughput of the hub is limited to that of a single link and all links must operate at the same speed.

Collisions reduce throughput by their very nature. In the worst case, when there are lots of hosts with long cables that attempt to transmit many short frames, excessive collisions can reduce throughput dramatically. However, a Xerox report in 1980 summarized the results of having 20 fast nodes attempting to transmit packets of various sizes as quickly as possible on the same Ethernet segment.[4] The results showed that, even for the smallest Ethernet frames (64B), 90% throughput on the LAN was the norm. This is in comparison with token passing LANs (token ring, token bus), all of which suffer throughput degradation as each new node comes into the LAN, due to token waits.

This report was controversial, as modeling showed that collision-based networks became unstable under loads as low as 40% of nominal capacity. Many early researchers failed to understand the subtleties of the CSMA/CD protocol and how impo

Source(s):

 

sana is ka itna lenghty ans to nai tha jetna ap ny bna dyeayh to bht simple hy

One repeater doubles, two repeaters triple the maximum cable length limitation. It is to be noted that we cannot
increase the maximum cable length as many times as we wish by just adding repeaters.

Current Final Term papers of this subject will be shared here During Exam.

Total Questions: 52 Total Marks: 80 Questions & Marks Division:- 1*40 MCQs, 4*2 Marks, 4*3 Marks, 4*5 Marks. Question 41:- How many bits in MAC Address according to their scheme? (2) Question 42:- What are the services provided by TCP? (2) Question 43:- If some packet has some error, which IP datagram header field indicates you about error? (2) Question 44:- What are the functions that IP multicast abstraction allows an application running on an arbitrary computer to do? (2) Question 45:- Can length of an Ethernet be increased to three segments of 500 meter by adding a repeater to connect them? (3) Question 46:- Which type of NAT fails if an application uses the IP address instead of domain name? And why? (3) Question 47:- What mechanisms can a host to determine the path MTU? (3) Question 48:- In client-server interaction, if no signal is given, then how can an application know when communication has arrived? (3) Question 49:- Differentiate between routing techniques used within the autonomous system and outside of the autonomous system? (5) Question 50:- What do we mean by connection multiplexing in connection between NIC and physical network? (5) Question 51:- How does ICMP define error and informational massages? (5) Question 52:- Why network administrator doesn’t suggest fine timer transmission? Have any solution of this problem? Explain it with solid reasons. (5)

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