1. Different computers are connected to a LAN by a cable and

modem

interface card

special wires

telephone lines

2. Working of the WAN generally involves

telephone lines

micro waves

satellites

All of these

3. The amount of uncertainty in a system of symbol is called

Bandwidth

Entropy

Loss

Quantum

4. Simple network management protocol (SNMP) is implemented with a daughter board in

the nodes

the server

the hubs

a separate PC that manages the network

5. In networking terminology UTP means

Unshielded Twisted pair

Ubiquitious Teflon port

Uniformly Terminating port

Unshielded T-connector port

6. Which of the following is possible in a token passing bus network ?

in-service expansion

unlimited number of stations

both (a) and (b)

unlimited distance

7. Due to which of the following reasons excessive bond width in control systems should be avoided ?

It leads to slow speed of response

It leads to low relative stability

Noise is proportional to band width

None of the above

8. Which of the following statements is correct for a system with gain margin close to unity or a phase margin close to zero ?

The system is relatively stable

The system is highly stable

The system is highly oscillatory

None of the above

9. Which of the following statements is correct for any closed loop system ?

All the co-efficients can have zero value

All the co-efficients are always non-zero

Only one of the static error co-efficients has a finite non-zero value

None of the above

10. The second derivative input signals modify which of the following ?

The time constant of the system

Damping of the system

The gain of the system

The time constant and suppress the oscillations