Sunday, September 12, 2010

ISRO PLACEMENT PAPER

ISRO exam Computer Science paper

Total no of questions: 80 ,Duration: 90 minutes ,
Marking: +3 for correct answer -1 for wrong ,Total sections : 1

Questions on

PASCAL code
Networking
Binary Tree
Stack & Queue concept
GateS (AND OR NAND NOR XOR…)
Full adder / subtrecter ckt
Data structure basics
C funda
Page fault and other computer architech. fundamentals
Internet basics
Sin Cosine waves based questions

1. The root directory of disk should be placed at_____
—>at a fixed location on the system disk.
2. DNS is basically used to ____
—–>i wrote –to have a hierarchical structure.
3.one more ques on DNS
4. abt TCP and UDP
5. TCP’s which layer is there for the OSI’s first three layers.
6. Multiprocessing models have—
a)symmetric b)unsymmetric models c)none of the above d) both
7. BCDhave binary nos in
a)bis b) bytes c)nibble
8. Top-down parser ….
a) leftmost derivation
b)rightmost derivation
c)leftmost derivation in reverse
d)rightmost derivation in reverse
9.Loop which avoids check at every iteration
a)loop controlling b) loop jamming
10.one tree was given and some expressions were there and we have to
find the correct postfix exprn
11.abt logic gates
12.worst case of Shell sort
13.sine wave can be split into
a)set of sine waves
b)set of sine waves with phase zero
14.full binary tree with n vertices has how many leaf nodes
somethng like this…
15.complete graph with n vertices and somethng
16.in a cyclic graph with n vertices how many minimum edges
a)n b)n/2…

1.The minimum number of edges in a connected cyclic graph on n vertices is

a) n-1 b) n c) n+1 d)none of these

2.A full binary tree with n non leaf nodes contains

a) n nodes b) log n nodes c)2n-1 nodes d)2n nodes

3.The time complexity of shell sort

a) O(n) b) O(log n) c) O(n 1.2 ) d)O(n2)

4.The time taken to insert an element after an element pointed by some pointer

a) O(1) b) O(log n) c) O(n) d) O(nlogn)

5. what is the name given to the first generation computer?

a) Binary language b)Machine language c)Assembly language

6.The root directory of a disk should be placed

a) at a fixed address in main memory
b) at a fixed location on disk
c) anywhere on disk.

7.A top down parser generates

a) right most derivation
b) left most derivation
c) right most derivation in reverse
d) left most derivation in reverse

8.what is the name of the OS that reads and reacts in terms of actual time?
a)batch system
b)time sharing
c)real time

9.FDDI is a
a)ring network
b)star network
c)mesh network

10.Computer memory consists of

a)ROM
b)PROM
c)RAM
d)all the above

1 comment:

CURRENT AFFAIRS PREPARATION PLAN

“Current Affairs” and “General Knowledge” cover many topics like from economy to sports or education to politics, or even technology to automobiles. In every second some issues are happening around the world in these sectors, and to accumulate the excerpt of some highlighted news, and memorize it is a good plan to prepare current affairs and GK.

Some Important Tips to Follow:

Read Newspapers regularly

We all know that “Old is Gold”, same thing applies here too. We need to make a habit of reading newspapers regularly. I’ll suggest you to read more than one newspaper. It will be better if you read one newspaper of your mother language, and other of English. Some useful newspapers are “The Times of India”, “The Hindu”, “The Telegraph” etc. You need to start this habit at least 6 months before the actual exam that will help you to get access to all the important events of that period of time.

You need to keep an eye on what’s happening around you in your country and world as well. Trust me guys, you will surely find it interesting after several days. We all know that staying updated is always a good idea, as it will stand you apart from the rest.

Read Magazines thoroughly

This is another great option to prepare the subject we are talking about. There are many leading magazines that focus on current affairs and General Knowledge. You need to buy it from your local magazine seller, and start reading it thoroughly. These magazines beautifully categorize the articles with its genres to make it interesting to read on. Some of the useful magazines are Pratiyogita Darpan andManorma.

Try to read some business magazines and sports magazines too along with a general magazine. This will increase your chances of cracking the competitive exams with ease. Some useful business magazines areBusiness Today, Business Line etc.

Follow News Channels

You will need to follow news channels at least once a day. Now most of the leading news channels are active for 24*7. You need to pick up a suitable time for yourself to watch any favorite news channel of yours. You can watch ABP News, NDTV, Times Now, ET Now, Zee News etc. Try to go through all the breaking and highlighted news, and make it a habit.

I know that watching news channels for long will bore you, so I’ll suggest you to allocate only 30 minutes for it in a whole day. All the leading ones shows the glimpses of all important events of the day quite frequently, so 30 minutes will be enough for you to boost up your current affairs and GK knowledge.

Maintain a Diary

My teacher used to tell me that whenever you learn something try to write it down in your diary, as it will help you to memorize it in a better manner. He is so right, as this method helped me a lot to score good marks in every exam that I appeared for. As I already mentioned before that a lot of events are occurring in the country and around the world, so it is easily understandable that it is not easy to remember everything. It’s always a superb idea to maintain a diary of current events.

You need to update this diary on a daily basis with all the events that you consider as important ones. This diary will become quite useful for the revision part, as it will provide you information about all the important events at a place. You should keep revising the diary frequently, as it will help you to memorize important names, dates, awards etc.

Channelize your Preparation Accordingly

All the competitive exams are not same, as all of them have different pattern, even when it comes to the same topic as ‘Current Affairs’ or ‘GK’. For example for civil services exam, you need to give importance on events of National value. On the other scenario, in matter of bank job exam, the focus should be on the news on banking sectors, and economic and business news.

Thus I’ll suggest you to prepare as per the exams you are appearing for, as channelizing your preparation according to the pattern of the exam will accelerate your chance of getting selected.

Use Internet Resources

Google, YouTube and Wikipedia are my favorite teachers’; one of my friends told me this once. This is quite true indeed, so you should use all the available online resources to study current affairs and GK for exams. For example this blog is all about “Current Affairs”, so you can check this blog regularly by subscribing to us (check the sidebar for subscription options). You can actively take part some forums that are focusing on current events. The good part is you can follow the websites of all leadingnewspapers online if you don’t have enough time to read newspapers.

Use Social Networking Sites for Good

Believe me or not you can surely use social networking sites to your benefits. Especially to prepare current affairs and General knowledge Facebook, Twitter, LinkedIn and StumbleUpon may help you a lot. You can join some Facebook pages, or follow some twitter accounts that are related to current affairs. You can join our Facebook Page too for this matter, or connect with me at LinkedIn or circle me in Google Plus for all the information on recent happenings to boost up your General Knowledgeability.

Give Priority to your Strength

We usually find difficulties when we try to learn everything at once. In that process basically we study a lot, but remember a little. We need to first select our strength areas for our preparation. Try to givepriority to your strength areas. It may be Sports, economy, Government Affairs or technology. Suppose you are applying for Bank exams, then you should prepare industry related news. Along with that you may pick any 2-3 areas of your strength like sports or technology. You need to prepare these sections to the utmost level. I can assure you that these strategies will help you to score much better in Current Affairs section.

Participate in Online Quizzes

You should participate in some free quizzes that are available online to evaluate yourself. For this matter you can easily access our “Quiz Section”. This will give you proper idea whether you are ready for the big exam day or not. As an added factor it will also provide you confidence i.e. very much essential. You can download Monthly-wise current affairs questions from Here.