Symantec Placement 2012 BITS Goa

1 round : Technical test consist 20 question all based on c, Java, scheduling, memory, complexity and and basic c, with negative marking, I just attempted 15 and out of that 3 where wrong but still was the first in Test.
Out of 50, 15 people where shortlisted  for interview.
2 round :Technical round, for around 50 min, he asked me project, class, object, database, OSI layers, data structure(tree depth calculation) ACID property, object oriented concept, and all.
3 round: was also technical all above question plus normalization, finding second max, value from database, implement your own max function in database, then how ping work from Network , then what OS parameter will you prefer for your own OS development, then data mining and data warehouse difference, stack and heap memory allocation how it done and cos and pros..
how many zero will be in 52! , and one probability question , it was too much for me but still he was firing then someone came and he stopped.....
I was stuck in some answer but manage it .
..
so I will tell one thing just stay with basic and you can do it........

Flipkart Placement paper 2012

Flipkart came in campus with package of 11.5 + stocks, CG cutoff was 6 CGPA only, 1. Online Written test consist of general aptitude question based on work , pipe, distance, man-work done, profit loss all basic question total 30, 2. It also include of two programming question we have to code in any language and have to submitt online only. 3. Mostly problem statement base on the code chef and istest.com site.

Software Architecture for Design and Documentations For Telecommunication Company.

REQUIREMENT FOR SYSTEMS

—The billing system which include range of services, like voice services internet services (including intranet).

—Each service may have a number of pricing plans.

—The number of users the system has to handle can be from 10,000 to 100,000. Also system allow for an user base to double over a period of 5 years.

—End users receive a statement of account on a regular basis.

—Uninterrupted service for customer.

 COMPANY STAKEHOLDERS

UNIVERSAL MOBILE TELECOMMUNICATION SYSTEM (UMTS) 3G MOBILE WIRELESS NETWORK ARCHITECTURE

—Users want fast and responsive:

—Call setup and service delivery

—Refill of account balances in real-time

—Viewable account balance meter changes during activities

—Self-service lookup account, refills and usage

—Prepaid billing as a growth booster

—Content based billing

—Refill of accounts while on a call without break

—2G and 3G mobile services

WHY UMTS?

—3GPP UMTS, the Universal Mobile Telecommunications System is the third generation (3G) successor to the second generation GSM based cellular technologies which also include GPRS, and EDGE

—The transition from GSM to the 3G UMTS architecture did not require a large instantaneous investment.

—UMTS will enable the wireless Information Society, delivering high-value broadband information, commerce and entertainment services to mobile users via fixed, wireless and satellite networks.

—UMTS will speed convergence between telecommunications, IT, media and content industries to deliver new services and create fresh revenue-generating opportunities

 UMTS ADVANTAGES

—Personalized

—Location aware

—Real-time and flexible

—Greater range of enriched multimedia services

—Higher data rates for a greater number of users

—Lower costs in long-term because of network efficiencies

—Separation of control and transport

PUBLISH SUBSCRIBER ARCHITECTURE

—Choice of Pricing and Payment:

—Multiple rating per customer, per service, tine of day, etc.

—Variable discount for every rating

—Allow one, two or multiple billing instances

—Postpaid, pre-paid billing facility for the customer.

 

CLIENT SERVER  ARCHITECTURE

—In the internal management perspective and to keep track of all the users.

—To study the client usage of various services to avail them best plan.

—To provide the faster access to the online customer who are using internet billing and recharge options.

—To analyze the sales and decide the business strategy.

—But company wants the system to allow for an user base to double over a period of 5 years.

—So to achieved this, client server architecture with centralize DATABASE will not be efficient and cost effective.

—So to achieve this Client server with Network Attached Storage (NAS)  is used.

HOW PERFORMANCE WILL IMPROVED WITH NAS

—Each region has there storage system which is having the user and their billing information.

—Centralized system will monitors all this systems

—Management will access all its data from the centralized system.

—This system is scalable.

—Traffic overhead will reduce and user will get faster access.

—Cost effective in company perspective.

ONLINE WEB PORTAL

 

—For the prepaid and postpaid customer online web portal help to keep track all its calling and billing record.

—Portal is also having the facility of online recharge option for prepaid customer.

—Portal will the contains the details of  all the postpaid and prepaid plans.

—User friendly user interface with one click information access for all.

—User both prepaid and postpaid can change their plan at any time with this portal.

 

HOW SUGGESTED ARCHITECTURE WILL IMPROVE THE QUALITY ATTRIBUTES

—With the use UMTS mobile network architecture customer will get better service over the current GSM 2G network.

—This will increase the number of user and due to achievement of following  quality parameters.

—Performance

—Reliability

—Responsiveness

—Availability

—Empathy: Caring individual attention the firm provides to its customers will increase.