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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
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