WE PROVIDE CASE
STUDY ANSWERS, ASSIGNMENT SOLUTIONS, PROJECT
REPORTS AND THESIS
ARAVIND
- 09901366442 – 09902787224
NETWORK
MANAGEMENT
The Engineering Department to twelve
persons in a small corporation is on a regular 10 Base-T Ethernet Lan hub with
16 ports. The busy group started complaining because of the slow network
performance. The network was operating at 50% utilization, whereas 30%
utilization is acceptable. If you are the corporation’s Information Technology
Engineer and have to resolve the problem technically,
a. Describe four choices for resolving the problem, maintaining the LAN as an Ethernet LAN.
a. Describe four choices for resolving the problem, maintaining the LAN as an Ethernet LAN.
b. State the advantages and disadvantages
of each approach.
1.
Two virtual LANs, 145.50.50.1 belonging to NM
lab, and 145.50.60.1 belonging to Networking lab, each have three workstations.
The former has workstations 145.50.50.11-13, and the latter 145.50.60.21.-23.
They are connected to a switched hub on ports 2 through 7. the NICs (network
interface cards) associated with ports are made by Cabletron and their MAC
addresses start with the vendor’s global prefix 00-00-1D (hexadecimal notation)
and end with 11,12,13,21,22, and 23 (same as the fourth decimal position of IP
addresses).
2.
a. Create a conceptual matrix table, as shown below, that would be
generated by the hub that relates the IP address, MAC address,
and port number.
a. Create a conceptual matrix table, as shown below, that would be
generated by the hub that relates the IP address, MAC address,
and port number.
3.
|
4.
IP
Address
|
5.
MAC
Address
|
6.
Port
Number
|
|
7.
|
8.
|
9.
|
b. The workstation 23 is moved from networking
lab to NM lab.
The appropriate parameter
changes in the hub and the workstation.
3. Design a client/server network with two
servers operating at 100Base-T Fast Ethernet speed and the clients operating at
regular 10Base-T Ethernet speed using a 10/100 Mbps NIC. The hub is located in
a wiring closet, but the servers and clients are not. Assume that a
satisfactory performance is achieved at 30% utilization of the LAN.
4.
Customer
network management is used to look at the QoS classes associated with VCIs
across an ATM link interface. What three MIB group and objects are used to
collect the information? Describe the relationships among them.
5. A new LEC is added to an ATM LAN
containing other LECs, LES, LECS, a BUS, and a ATM switch. Starting from the
initial conditions, six steps (or phases) are required to make the new LEC part
of the ELAN network: (1) LEC connection, (2) configurations, (3) join, (4)
initial registration, (5) BUS connection, and (6) operation. Describe these
steps.
6. Switched virtual circuit transmission
overhead could be high for sending small amounts of information. Calculate the
minimum time required to transmit one ATM cell from Miami to San Francisco on a
basic SONET network (OC-3) for the following cases. Assume that the distance is
4500 km and that the propagation speed is 300 meters per microsecond.
a. datagram service
b. switched virtual circuit service
c.
permanent virtual circuit service
7. A network manager discovers that a
network component is performing poorly and issues on order to the technician to
replace it. Which MIB group contains this information for the technician to
find out the physical location of the component?
8. An IT manager gets complaints from the
users that there is excessive delay in response over the Ethernet LAN. The
manager suspects the cause of the problem is excessive collisions on the LAN.
She gathers statistics on the collisions using the dot3Stats Table and
localizes the problem to a single faulty interface card. Explain how she
localized the problem. You may use RFC 2358 to answer this exercise.
9. You have been assigned the responsibility
of adding a new vendor’s components with its own NMS to an existing network
managed by a different NMS. Identify the three sets of functions that you need
to do to fulfill your task.
10. In a ballroom dance class, the instructor
asks the guests to form couples made up of a male and a female order (order
does not matter) for a dance. Write an ASN.1 module for dance Group with data
type Dance Group that is composed of data type couple; couple is constructed
using male and female.
11. A high school class consists of four boys
and four girls. The names of the boys with their heights are Adam (65”), Chang
(63”), Eduardo (72”), and Gopal (62”). The names of the girls are Beth (68”),
Dipa (59”), Faye (61”), and Keisha (64”). For each of the following cases,
write an ASN.1 description for the structure and record values by selecting
appropriate data types. Start with data type Student info, listing information
on each student.
12. You are asked to do a study of the use
pattern of 24,000 workstations in an academic institution. Make the following
assumptions. You ping each station periodically. The message size in both
directions is 128 bytes long. The NMS that you using to do the study is on a
10-Mbps LAN, which functions at 30 percent efficiency. What would be the
frequency of your ping if you were not to exceed 5 percent overhead?
13. Imagine that you are working for a company
(maybe you are) that has decided to move from an SNMP-based to a Web-based
management system. You are asked to prepare an executive summary on the two
approaches, WBEM and JMX, and make a recommendation. Present your report, which
is not to exceed two pages (executives don’t have the time or patience to read
longer reports).
Network
Management
1. (i) List the five key differences between TCP
reference model and OSI reference model. (2)
2)
Write
the similarities and differences between packet and cell switching. (2)
3)
Why is
the data link layer in a LAN subdivided into Logical Link Control (LLC) and Medium
Access Control (MAC) sub-layers ? (2)
4)
List the
characteristics of broadband coaxial cable. (2)
5)
Differentiate
between virtual circuit and datagram’s. (2)
6)
The
maximum payload of TCP segment is 62 1/2,2 1/212 1/2 bytes. Why ? (3)
7)
What are
sliding window protocols ? Explain one-bit sliding window protocol with an
appropriate diagram. (2)
2. (i) Name all the basic network topologies and
describe advantages of each. Draw proper diagram tor each topology. (2)
(ii) Explain the following terms : (2)
a)
Bandwidth
b)
Channel
capacity
c)
Multiplexing
d)
Quality
of Service (QoS)
e)
Full-Duplex
Transmission
(iii) What is the basic purpose of MAC layer
protocol ? Explain the function of following MAC layer protocols :
(a)
Ethernet
(b)
Token
bus (2)
3. (i) Describe the characteristics and application
or the following network devices : (6)
(a) Routers
(b)
Bridges
(c)
Switches
(iii) Answer the following : (4)
(a)
Explain
ISDN BRI Services.
(b)
Differentiate
between broadband and baseboard services.
(c)
Describe
the following three fields of TCP header :
(d)
Sequence
number
4. (i) What is congestion control ? How does it
occur ? (2)
(ii)
How does
TCP handle connection establishment and crash recovery ? (2)
(iii)
List and
explain any five ISDN applications. (2)
5. (i) Describe and compare the following routing
algorithms : (4)
(a)
Shortest
path routing
(b)
Flooding
(ii) How does ATM differ from frame relay ? List and
briefly define the ATM service classes. (6)
Section
B
1. (a) Write any two differences between OSI and TCP/IP
protocol suit. Also give reasons why OSI is not popular. (3)
(b)
Why is
layering of the protocols done in TCP/IP stack ? (3)
(c)
Explain
any two functions of each layer of TCP/IP protocol stack. (2)
(d)
How many
address bits does the latest version of IP (IPv6) have ? What is the maximum
number of IP addresses possible with IPv6 ? (3)
(e)
Identify
the header of each flag and explain its meaning : (4)
(i)
URG
(ii)
ACK
(iii)
FIN (iv)
RST
(f)
How is
flow control managed by Sliding Window protocol ? (3)
2.
(a) What
is Ethernet ? How does it work ? Also explain the fields of Ethernet Frame
Format. (4)
(b) What is First-Octet Rule ? Give an example to
explain it. (3)
3. (a) What is the significance of hierarchical naming
scheme ? Differentiate among following addresses and their meaning with
reference of DNS : (5)
(i) www.isbm.edu (ii) www.isbm.ac.in
NETWORK MANAGEMENT
1)
Describe four choices for resolving the problem maintaining the lan as Ethernet
Lan.
2) State
the advantages of each approach.
3) State
the disadvantages of each approach.
4) Give
reasoning about the choice you would prefer.
1)
Calculate the bandwidth used in both cases.
2) How do
you differentiate between both the cases?
1) What
are the two modes of MAC types that the WTP could be configured in?
2) Assume
that you have a WIFI AP, how is it configured?
3) Write
the SNMP query to use to validate your answer in (2)
4) What
is your general understanding about the above.
1)
Trouble Ticket 100: Customer says that when he receives messages, the message
is periodically missing some characters.
2)
Trouble Ticket 101: Customer in Atlanta complaints that when she tried to lag
into the system server, headquarters.com in New York, she gets disconnected
with a time out. However, her colleague in her New York office reports that he
is able to access the system
Networking Management
Q1.
Explain any five layer name & its silent services? (10 marks)
Q2.
Define: WAN? (10 marks)
Q3.
What are CPE networks? (10 marks)
Q4.
What are your top challenging activities in managing the network? (10 marks)
Q5.
Why we need NMS? (10 marks)
Q6.
What problems would you expect the NMS to resolve, and how? (10 marks)
Q7.
What is Ethernet? (10 marks)
Q8.
Define: switched Ethernet? (10 marks)
Q1.
What are Macros? (10 marks)
Q2.
Discuss Internet organizations & standards? (10 marks)
Q3.
Explain specification of SNMP protocol? (10 marks)
Q4.
Describe SNMP operations? (10 marks)
Q5.
Functional model of SNMP MIB Group? (10 marks)
Q6.
Discuss major changes in SNMPv2? (10 marks)
Q7.
SNMPv2 system architecture? (10 marks)
Q8.
Explain SNMPv2 management information Base? (10 marks)
WE PROVIDE CASE
STUDY ANSWERS, ASSIGNMENT SOLUTIONS, PROJECT
REPORTS AND THESIS
ARAVIND
- 09901366442 – 09902787224
No comments:
Post a Comment