2 Marks Questions and Answers MC1628 – TCP/IP Protocol Suite
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MC1628 – TCP/IP Procol
2 Marks Questions and Answers
MC1628 – TCP/IP Protocol Suite
1. What are called network support layers?
The physical, data link, and network layers are the network support layers.
2. What are called User support layers?
The session, presentation, and application layers are the user su...
2 Marks Questions and Answers
MC1628 – TCP/IP Protocol Suite
1. What are called network support layers?
The physical, data link, and network layers are the network support layers.
2. What are called User support layers?
The session, presentation, and application layers are the user support layers.
3. Why we need Transport layer?
The transport layer links the network support layers and the user support layers.
4. What is the purpose of Physical layer?
The physical layer coordinates the functions required to transmit a bit stream over a physical
medium.
5. What is the use of Data link layer?
The data link layer is responsible for delivering data units from one station to the next without
errors.
6. What is the need for Network layer?
The network layer is responsible for the source-to-destination delivery of a packet across
multiple network links.
7. What is the purpose of seven layer?
The transport layer is responsible for the source-to-destination delivery of the entire message.
The session layer establishes, maintains, and synchronizes the interactions between
communicating devices.
The presentation layer ensures interoperability between communicating devices through
transformation of data into a mutually agreed-upon format.
The application layer enables the users to access the network.
8. What is PPP?
The Point-to-Point Protocol (PPP) was designed for users who need a reliable
point-to-point connection to the Internet. PPP operates at the physical and data link layers of the OSI
model.
9. What is LANE ?
Local Area Network Emulation (LANE) is a client/server model that allows the use of ATM
technology in LANs.
, 10. What are the servers included in LANE?
LANE software includes LAN emulation client (LEC), LAN emulation configura tion server
(LECS), LAN emulation server (LES), and broadcast/unknown server (BUS) modules.
11. What is subnetting ?
Subnetting divides one large network into several smaller ones. Subnetting adds an
intermediate level of hierarchy in IP addressing.
12. What is meant by masking ?
Masking is a process that extracts the network address from an IP address. Subnet masking is a
process that extracts the subnetwork address from an IP address. A network or subnet address is
obtained from applying the bit-wise AND operation on the IP address and the mask.
13. What is supernetting?
Supernetting combines several networks into one large one.
14. What is meant by connectionless protocol?
The IP protocol is a connectionless protocol. Every packet is independent and has no
relationship to any other packet.
15. What is direct delivery?
The delivery of a packet is called direct if the deliverer (host or router) and the destination are
on the same network.
16. What is indirect delivery ?
The delivery of a packet is called indirect if the deliverer (host or router) and the destination are
on different networks
17. What is the function of routing table?
Every host or router has a routing table to route IP packets. In next hop routing instead of a
complete list of the stops the packet must make only the address of the next hop is listed in the routing
table. In network specific routing all hosts on a network share one entry in the routing table. In host-
specific routing the full IP address of a host is given in the routing table. In default routing, a router is
assigned to receive all packets with no match in the routing table.
18. What is static and dynamic routing ?
A static routing table’s entries are updated manually by an administrator. A dynamic routing
table’s entries are updated automatically by a routing protocol.
19. What are the fields included in routing table?
The routing table can consist of seven fields: a mask, a destination address, a next-hop address,
flags, a reference count, a use, and an interface. The routing module applies the mask, row by row, to
the received destination address until a match is found. Classless addressing requires hierarchical and
geographical routing to prevent immense routing tables.
20. What is the maximum length of a datagram?
The maximum length of a datagram is 65,535 bytes.
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