Please write the last 4 digits of your SSN on the Scantron form!

eggplantcinnabarMobile - Wireless

Nov 21, 2013 (3 years and 10 months ago)

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CI Assessment



Module 2

Please write the last 4 digits of your SSN on the Scantron form!

1. Cyberinfrastructure is a term used to describe:

a.

an infrastructure based on integrated hardware, software, networks, and data.

b.

an infrastructure available for a
dvanced computing strategies and for the trained experts
who use them.

c.

an infrastructure based primarily on software rather hardware.

d.

I truly don’t know. I had not heard of cyberinfrastructure prior to registering for this
course.


2. Cyberinfrastructure

provides a way for policy makers, analysts, coordinators, teachers, etc.


to have access to the same tools as current scientists and engineers.

a.

True

b.

False

c.

I am not sure.



3. A clear goal of cyberinfrastructure is to make the use of advanced information

technology

systems clear and easily accessible to all interested citizens.

a.

True

b.

False

c.

I am not sure.


4
.
Which of the following is true about Multi
-
hop communication?


a.

In a multi
-
hop wireless sensor network, every node can directly talk to the Base Stati
on
node.

b.

A Multi
-
hop network achieves broader coverage than a Single
-
hop network.

c.

Multi
-
hop provides higher end
-
to
-
end transmission speed than Single
-
hop.

d.

I’ve never heard of Multi
-
hop communications.


5
.
Which part of a sensor node consumes the most amoun
t of energy?


a.

CPU

b.

Memory

c.

RF Transceiver

d.

Sensor Board



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6.
What is the least important requirement of an Environmental Monitoring Sensor Network?

a.

Reliable data delivery

b.

Maximize the lifetime of the whole network

c.

High utilization of bandwidth

d.

Minimize trans
mission latency


7.
Which of the following statements about over
-
the
-
air
-
programming (OVA) is NOT true?


a.

OVA protocols download code to sensor node through wireless channel

SAS Data
Integration

b.

Some OVA protocols can support incremental
programming

in whic
h only the difference
rather than the whole code will be sent


c.

OVA protocols program sensor nodes in a one
-
by
-
one fashion.

d.

All

of the

above are true.


8
.
TinyOS is:


a.

an
open
-
source operating system
that requires minimum memory space and processing
capabili
ty
.

b.

a programming language
designed for wireless embedded sensor networks

.

c.

Both of the above.

d.

I’ve never heard of TinyOS.


9.
There are trade
-
offs between
network throughput

and
energy efficiency when designing a

communication scheme for wireless sensor
s.


a.

True.

b.

False.

c.

I am not sure.



10
.
Which of the following best describes the current status of wireless sensor networks?


a.

A
mature technology that can be deployed off the shelf with minimum effort.

b.

An unproven new research idea that may have great pract
ical value in the future.

c.

A fast evolving technology with some successes in certain practical applications.

d.

None of the above.

e.

I am not sure.






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11. What are the key characteristics of wireless sensor networks?


a.

Easier to deploy and maintain in large
-
sca
le monitoring applications than wired sensors
.

b.

More reliable and endurable than wired sensors in general.

c.

I am not sure.



12
.
What may be the reason to adopt wireless sensor network technology in your application?


a.

Low
-
cost

b.

Easy to deploy and maintain

c.

Abl
e to collect additional useful data as compared to the existing wired sensors.

d.

None of the above.

e.

All of the above.


13
.
Wireless sensor network is a network of distributed wireless sensor devices that are capable of
in
-
network collaboration for sensor dat
a collection and processing.


a.

True


b.

False

c.

I am not sure