The index profile of a core of multimode graded index fiber is given by?
 

Disturbance along the fiber such as vibrations, discontinuities, connectors, splices, source/detectors coupling result in __________
 

A single mode fiber has a zero dispersion wavelength of 1.21μm and a dispersion slope of 0.08 psnm^-2km^-1. What is the total first order dispersion at wavelength 1.26μm.
 

An alternative modification of the dispersion characteristics of single mode fibers involves achievement of low dispersion gap over the low-loss wavelength region between __________
 

For suitable power confinement of fundamental mode, the normalized frequency v should be maintained in the range 1.5 to 2.4μm and the fractional index difference must be linearly increased as a square function while the core diameter is linearly reduced to keep v constant. This confinement is achieved by?
 

The optical source used for detection of optical signal is ____________
 

A polarization maintaining fiber operates at a wavelength 1.2μm and have a modal birefringence of 1.8*10^-3. Calculate the period of perturbation.

 The more advantages optical amplifier is ____________
 

____________ is used preferably for channel selection in a WDM system.
 

Coherent radiation is relatively __________
 

 _____________ are capable of launching powers between 0.5 and several mW.
 

__________ are provided to reduce distortion and to provide a suitable signal shape for the filter.
 

What is an atomic action?

i) Both execute a series of instructions.
ii) A process is easy to create while thread requires duplication of the parent thread.
iii) Communication between processes requires IPC. However, communication between threads in the same process does not require any IPC.
iv) Processes are independent, while threads are dependent.

select the correct option

A router works in

Which of the following network device is used for interconnecting two LANs working on the same protocol?

Which of the following is a transport layer protocol?

A file of ‘x bits’ is sent from host A to host B over a circuit switched network that uses TDM
with ‘h slots’ and have a bit rate of ‘R Mbps’. The circuit establish time is k seconds. Find the
total time.

Telephone system network is the one of example of ----------------------

Datagram switching is a

Which of the following network device filters network traffic based on the MAC
addresses?

Which protocol is used to acquire the MAC address of a host whose IP address is known?

Which of these following protocol prevents out-of-order delivery of data?

Which of the following is a remote login application?

Which of the following network management command is used for querying the DNS?