AQA A2 Computing - COMP3 11/06/13

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Reply 280

madnutter56

Original post by I_Am_The_Man

but I put DESC for some strange reason...

I did this too. No idea why, I know it is ASC...

Oh well, only 1 mark!

Reply 281

JASApplications

I put ALPHABETICAL for the last line of the SQL. Will that be okay?

Reply 282

moogoomonkey

Original post by NightStrider

I got the exact same as you !

hi5!! I'm pretty sure you don't NEED to put ASC cause the default for ordering by strings is alphabetical :biggrin:

Reply 283

ks2924

Original post by bowersbros

Two things, not sure whether they'd pick up on it though:

The number shouldn't be within quotes.

ALPHABETICAL should be ASC.

Previously mark schemes have said to accept values in quotes.

I put Descending (DESC) :'(

Reply 284

fizzbizz

Who put post order for the tree traversal?

Posted from TSR Mobile

Reply 285

I_Am_The_Man

Original post by fizzbizz

Who put post order for the tree traversal?

Posted from TSR Mobile

That is correct, even if you did not perform the trace you could tell by the structure of the procedure that it is post order.

Reply 286

KING2011BOB

Incredibly weird paper overall this one!

Q1a) I got No,Yes,Yes,No
No idea what was wrong with the BNF!
Recursive reason was a bit what?

But then the rest was reasonable ish,the networking stuff was surprisingly the best part for me,although for the 8 marker not sure if I written the correct things

I talked about TCP/IP ---> routers re-routing packets then the gateway moves the packet from the LAN to the WAN of the internet---> then the packet gets passed through switches,gateways and routers? Is this what people written ish?

No idea for the one where you had to write an algorithm for the linked list

Was expecting this to be hard,but I felt AQA took things a bit too far...again

The turing machine question was tricky,positive I got it though

01 # 01
Just copies whats on the left of the # to whats on the right

The last part I put Alter Table also :P just thought it was the most arbituary!

The relative error and absolute error I could not remember (But used logic to as I knew both definitions) :smile:

Overall mean,but manageable,grade boundaries should be a lil lower I believe

(edited 10 years ago)

Reply 287

absism

Did anyone actually attempt the 8-marker on networks? Also, what did you guys for the denary and normalising question? I got 40 for denary, but completely forgot how to normalise!! How do you normalise -7.75?!

Reply 288

absism

Original post by KING2011BOB

No idea what was wrong with the BNF!

<type> listed char as one of the types, which wasn't one of the types listed in the original figure. Dk about the other error. :/

Original post by KING2011BOB

The last part I put Alter Table also :P just thought it was the most arbituary!

Aw man! I put that then changed it to Insert Column :frown:

Reply 289

SerialVelocity

Original post by absism

I got 40 for the denary. :P To convert -7.75, I did this:

Convert -7.75 to fixed point:

7.75 = 0111.11
-7.75 = 1000.01

Move the radix point 3 to the left (so that there is no trailing 0's):

1.00001

That is the mantissa, the exponent is 3.

(edited 10 years ago)

Reply 290

Damask-

Original post by absism

<type> listed char as one of the types, which wasn't one of the types listed in the original figure. Dk about the other error. :/

I think the other error was on the procedure def bit.

Reply 291

JASApplications

Original post by SerialVelocity

I got 40 for the denary. :P To convert -7.75, I did this:

Convert -7.75 to fixed point:

7.75 = 0111.11
-7.75 = 1000.01

Move the radix point 3 to the right (so that there is no trailing 0's):

1.00001

That is the mantissa, the exponent is 3.

Got the same :smile:

Reply 292

bowersbros

Original post by absism

<type> listed char as one of the types, which wasn't one of the types listed in the original figure. Dk about the other error. :/

Aw man! I put that then changed it to Insert Column :frown:

The other error was that it stated that ( <param> ) was required, when it wasn't. The diagram has an arrow that could bypass it.

Reply 293

JASApplications

Original post by Damask-

I think the other error was on the procedure def bit.

I think it was too. It only allowed you to have procedure def with parameters but the diagram showed you could have it without parameters.

Reply 294

bowersbros

Original post by SerialVelocity

I got 24 :/

Reply 295

NightStrider

Original post by JASApplications

I think it was too. It only allowed you to have procedure def with parameters but the diagram showed you could have it without parameters.

Yes that was it

Reply 296

KING2011BOB

Original post by Damask-

I think the other error was on the procedure def bit.

Still though I don't believe the paper was started in the right manner! Only dropping 2 marks there though so oh well

I finished this paper with like 1 hour and a half to go what is with that? Everyone did have a final question of Q9?

Just seemed so short,although a lot of marks were longer ones towards the end really

Reply 297

CodeJack

Original post by JASApplications

For the ERD, what relationships did you get?

I think I got 3 one-many but can't remember where they were to.

I had 3 one->many, they all involved customer

Reply 298

ollyhal

Original post by absism

<type> listed char as one of the types, which wasn't one of the types listed in the original figure. Dk about the other error. :/

Aw man! I put that then changed it to Insert Column :frown:

Their was another alternative for the first expression I believe