COMP3 - JUN 2016 Discussion Thread

i said using classes is an example of breaking a problem down into smaller more manageable sub problems which is an example of abstraction by generalisation - any marks ? :/

Yes that's quite a good point... Not really sure what their after in the mark scheme.

Reply 181

LiamT98

OP

I think all in all the exam was okay, some parts were easier than others but definitely a few things i messed up on! Pretty sure I misread the last question and only put ac*. And got -1312 i think for the twos complement conversion question. I also said that the linkedlist acts as abstraction as it is not requires for the program to run instead it is called only on a condition and that it is a small part of a larger problem.
Anyway, we can hope!
If not I'll be resitting haha

Reply 182

Dumbledoge

I can't seem to open the mark scheme, it says "Invalid Attachment specified", how are you getting round this problem?

Reply 183

Polyrogue

2

I thought it was okay, but we never finished learning everything so there was some stuff I didn't know. The entire topics of Operating Systems, Network security and topology, thin and thick client networks were all entirely learned by our teacher saying "do these questions from your textbook for homework" :mad:

I thought some of the questions were a bit abstract themselves haha, but mostly it wasn't too bad. I'm just disappointed there was no network diagram where you had to label IPs and stuff. Spent so long revising that.

Reply 184

1TrueMeaning

15

Original post by saqibjr

I have made an unofficial mark scheme with most answers. Please tell me the answers to the questions I missed if you know. This covers>90 of the marks. This is the best I could do given the questions I remember

Can you upload it on to another web service such as Google drive. An example of SaaS...

Reply 185

saqibjr

Hi guys, i ll upload it somewhere else soon. Before I do that, could you guys please tell me whether I am correct about the parity bit being 1 and what the ER diagram was supposed to look like. Thanks

Reply 186

username1967507

11

Original post by saqibjr

Hi guys, i ll upload it somewhere else soon. Before I do that, could you guys please tell me whether I am correct about the parity bit being 1 and what the ER diagram was supposed to look like. Thanks

many customers to many pricebands, one price band to many parcels, one customer to many parcels.

Reply 187

computationchive

9

Original post by Sid1234

many customers to many pricebands, one price band to many parcels, one customer to many parcels.

Yup, that's what I got...

Reply 188

username1967507

11

Original post by computationchive

Yup, that's what I got...

do you remember if there was price in the parcel table?

Reply 189

computationchive

9

Original post by Sid1234

do you remember if there was price in the parcel table?

No, price was in the PriceBand table - it was the 'deliveryspeed' that was in the parcel table...

Reply 190

username1967507

11

Original post by computationchive

No, price was in the PriceBand table - it was the 'deliveryspeed' that was in the parcel table...

I was sure I saw it there :frown:

Reply 191

computationchive

9

Original post by Sid1234

I was sure I saw it there :frown:

Not sure then buddy, can't remember exactly so I could be wrong...

Reply 192

username1967507

11

anyone got that ms then?

Reply 193

fuzzedshadow

1

pdf is apparently invalid :/. can you upload somewhere else please? cheers

Reply 194

saqibjr

guys sorry I took so long, i've been busy revising C4. Have it here.

https://drive.google.com/open?id=0B8y3j-jjFBDKR3Rkck5ON1N5VWM

Can someone tell me whether the parity bit question was 1 or 0, i can't really remember that

Also, I've only started using TSR could anyone tell me how your rep works/changes?

(edited 7 years ago)

Reply 195

thelion786

7

Original post by saqibjr

guys sorry I took so long, i've been busy revising C4. Have it here.

https://drive.google.com/open?id=0B8y3j-jjFBDKR3Rkck5ON1N5VWM

Can someone tell me whether the parity bit question was 1 or 0, i can't really remember that

Also, I've only started using TSR could anyone tell me how your rep works/changes?

I don't remember exactly but I'm pretty sure it was 1

Reply 196

saqibjr

Original post by thelion786

I don't remember exactly but I'm pretty sure it was 1

kl, thanks

Reply 197

username1967507

11

looking at that paper i think 85 ish for an A* there were more questions that will catch people out than last year - the functions private/public, linked list, turing machine algorithm related have all never been seen before

Reply 198

Ryan105

1

For anyone not sure about SaaS, it's not actually that bad.
It's pretty much just an application/piece of software that is run on a server, and the server is dedicated to providing that 'application as a service' to clients who connect (instead of wide range of applications) - which is why it can be considered a client/server model.
The only major differences are, that clients will probably connect through a well known and familiar method such as a web browser (where as thin clients, will connect over the network to the server in the OS background). In addition SaaS may potential require users to subscribe/pay, can do upgrades to the software for all users (on the server as it is not downloaded to each client/workstation). The software is also more secure on the server (less likely to be cracked/exploited). SaaS can usually be accessed from multiple platforms (e.g phone and laptop), where as thin clients are generally only workstations (such as PCs/Laptops).

Reply 199

the_chosen_one97

2

Guys I know its only 1 mark but for the question about what the Turing machine did, couldn't you have said it subtracts 1 in binary from the original number? It does reflect the number as well but originally it was 2 in denary and ended up as 1 in denary so both are correct? Will they allow more than 1 answer from the mark scheme?

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