What is Client/Server?
Clients and Servers are separate logical entities that work together
over a network to accomplish a task. Many systems with very different
architectures that are connected together are also called Client/Server.
List out the benefits obtained by using the Client/Server oriented TP
Client/Server applications development framework.
Firewalls of protection.
Scalability of functions.
Reduced system cost.
What are the services provided by the Operating System?
Extended services - These are add-on modular software components that
are layered on top of base service.
What is ACID property?
ACID is a term coined by Andrew Reuter in 1983, which stands for
Atomicity, Consistence, Isolation and Durability.
What are Stored procedures?
A stored procedure i s named collection of SQL statements and
procedural logic that is compiled, verified and stored in a server
database. It is typically treated like any other database object. Stored
procedures accept input parameters so that a single procedure can be
used over the network by multiple clients using different input data. A
single remote message triggers the execution of a collection of stored
SQL statements. The results is a reduction of network traffic and better
What is wide-mouth frog?
Wide-mouth frog is the simplest known key distribution center (KDC)
What is passive topology?
When the computers on the network simply listen and receive the signal,
they are referred to as passive because they donít amplify the signal in
Example for passive topology - linear bus.
What is region?
When hierarchical routing is used, the routers are divided into what we
call regions, with each router knowing all the details about how to
route packets to destinations within its own region, but knowing nothing
about the internal structure of other regions.
What is virtual channel?
Virtual channel is normally a connection from one source to one
destination, although multicast connections are also permitted. The
other name for virtual channel is virtual circuit.
Difference between the communication and transmission?
Transmission is a physical movement of information and concern issues
like bit polarity, synchronization, clock etc.
Communication means the meaning full exchange of information between two
What is the difference between TFTP and FTP application layer protocols?
The Trivial File Transfer Protocol (TFTP) allows a local host to obtain
files from a remote host but does not provide reliability or security.
It uses the fundamental packet delivery services offered by UDP.
The File Transfer Protocol (FTP) is the standard mechanism provided by
TCP / IP for copying a file from one host to another. It uses the
services offered by TCP and so is reliable and secure. It establishes
two connections (virtual circuits) between the hosts, one for data
transfer and another for control information.
What are the advantages and disadvantages of the three types of routing
The three types of routing tables are fixed, dynamic, and fixed central.
The fixed table must be manually modified every time there is a change.
A dynamic table changes its information based on network traffic,
reducing the amount of manual maintenance. A fixed central table lets a
manager modify only one table, which is then read by other devices. The
fixed central table reduces the need to update each machine's table, as
with the fixed table. Usually a dynamic table causes the fewest problems
for a network administrator, although the table's contents can change
without the administrator being aware of the change.
What is Beaconing?
The process that allows a network to self-repair networks problems. The
stations on the network notify the other stations on the ring when they
are not receiving the transmissions. Beaconing is used in Token ring and
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