Wednesday, September 07, 2005

wireless networks sample question

Part 1. Basics

Two drawbacks of a cellular topology are ___________________
An ad hoc network consists of _______
Access points for a WLAN mostly use antennas whose radiation patternsare described as ________
Eavesdroppers on FHSS communications hear __________
Part 2. Telephone Systems
Where is an "always-on" device needed?
A transmitter run by the carrier is called a ____
What are the two components of a GSM mobile station?
Four advantages of CDMA over GSM are ___
Three design considerations for cordless standards are1.2.3.
DECT & PWT have a transmission rate around ___ Mbps

Part 3. Wireless Data
Two service types in SMS are named ___
SMS point to point messages are supervised by the ___
To find out if it has moved, a mobile node uses the process of ___

Part 4. Programming Handsets
What are three limitations of mobile handsets?
What are the two main branches of J2ME?
A standard package imported by midlets is named ____

Part 5. Wireless LANs
The maximum data rates provided by 802.11a, 802.11b, and 802.11g are___
A DSSS channel has a bandwidth of ___ MHz and can carry up to ___ Mbps.
FHSS [is / is not] commonly used, because ___.
A control frame to advertise a WLAN is named a ___ frame.


Part 6. Personal Area Networks
The connection modes of Bluetooth are named ___
Bluetooth devices start in the ___ state.
A piconet can have up to ___ active slaves.
The only PAN with designed-in quality of service is ___and achieves QoS by using ___ packets as does ___ .

Tuesday, January 25, 2005

Aviation - You were my everything

Lyrics

This goes out to someone that was
Once the most important person in my life
I didn't realize it at the time
I can't forgive myself for the way I treated you so
I don't really expect you to either
It's just... I don't even know
Just listen...

You're the one that I want, the one that I need
The one that I gotta have just to succeed
When I first saw you, I knew it was real
I'm sorry about the pain I made you feel

That wasn't me; let me show you the way
I looked for the sun, but it's raining today
I remember when I first looked into your eyes
It was like God was there, heaven in the skies

I wore a disguise 'cause I didn't want to get hurt
But I didn't know I made everything worse
You told me we were crazy in love
But you didn't care when push came to shove

If you loved me as much as you said you did
Then you wouldn't have hurt me like I ain't shit
Now you pushed me away like you never even knew me
I loved you with my heart, really and truly

I guess you forgot about the times that we shared
When I would run my fingers through your hair
Late nights, just holding you in my arms
I don't know how I could do you so wrong

I really wanna show you I really need to hold you
I really wanna know you like no one could else know you
You're number one, always in my heart
And now I can't believe that our love is torn apart

refrain:
I need you and
I miss you and
I want you and
I love you 'cause
I wanna hold you,
I wanna kiss you
You were my everything
And I really miss you (2x)

I knew you gonna sit and play this with your new man
And then sit and laugh as you're holding his hand
The thought of that just shatters my heart
It breaks in my soul and it tears me apart

At times we was off I was scared to show you
Now I wanna hold you until I can't hold you
Without you, everything seems strange
Your name is forever planted in my brain

Damn it, I'm insane,
Take away the pain
Take away the hurt
Baby, we can make it work

What about when you
Looked into my eyes
Told me you loved me
As you would hugged me

I guess everything you said was a lie
I think about it, it brings tears to my eyes
Now I'm not even a thought in your mind
I can see clearly, my love is not blind

refrain

I just wish everything could have turned out differently
I had a special feeling about you
I thought maybe you did too
You would understand, but...
No matter what, you'll always be in my heart
You'll always be my baby

Our first day, it seemed so magical
I remember all the time that I had with you
Remember when you first came to my house?
You looked like an angel wearing that blouse

We hit it off, I knew it was real
But now I can't take all the pain that I feel
Reach in your heart, I know I'm still there
I don't wanna hear that you no longer care

Remember the times? Remember when we kissed?
I didn't think you would ever do me like this
I didn't think you'd wanna see me depressed
I thought you'd be there for me, this I confess

You said you were my best friend, was that a lie?
Now I'm nothing to you, you're with another guy
I tried, I tried, I tried, and I'm trying
Now on the inside it feels like I'm dying

refrain

And I do miss you
I just thought we were meant to be
I guess now, we'll never know
The only thing I want is for you to be happy
Whether it be with me, or without me
I just want you to be happy