Search This Blog

Popular Posts

Monday, May 23, 2011

Nokia Siemens Interview -Technical Rounds

Technical Round 1

1. What all debugging techniques have you learnt so far to debug mobile phone application?

2. Given a set of numbers find a consecutive subset of numbers whose sum is maximum. What is the complexity of your algorithm?

3. How will you implement a memory leak detector for your mobile application, so that when you come out of a scope, you can alert developer that there is a memory leak?

4.What is the most challenging bug that you have fixed for a mobile application?

5. What are the differences between C++ and Java?

Technical Round 2

1. How does a Unix machine boot, what is the process id of init?

2. Describe file system in Unix.

3. How can a process communicate with another process in most efficient way?

4.How can you detect memory corruption?

5. Design a system which has UI which takes either an array of char's of integers , and a sorting algorithm(e.g. quick sort,merge sort) it sorts the array passed based on the algorithm passed. Answer Hint: Use Template Function and Algorithm Factory


Technical Round 3

1. Declare = operator for a class.

2. Why = operator has to return a reference why cannot it be void.

3. Explain how a mobile browser application works.

4. What is placement syntax?

5. Can a constructor be virtual?

6. How do you prevent developer allocating memory for a class in heap (that is using new)

7. How do you prevent developer from allocating memory for a class in Stack?

About Android

Android

http://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Android_robot.svg/100px-Android_robot.svg.png

Top mobile network companies in the world according to the no of subscribers

1. CHINA MOBILE - CHINA
2. SINGTEL - SINGAPORE
3. VODAFONE - UNITED KINGDOM
4. TELCEL - MEXICO
5. TELEFONICA - SPAIN
6. AIRTEL - INDIA
7. TELENOR - NORWAY
8. ORANGE - FRANCE
9. VIMPELCOM - RUSSIA
10. AXIATA GROUP BERHAD - MALAYSIA

Sunday, May 22, 2011

Top mobile companies in the world ordered according to their revenues

Rank Country Company Mobile revenue Type of business
1 Vodafone Mobile UK US$67Bn mobile operator
2 Nokia Mobile Finland US$66Bn handset manufacturer
3 China Mobile China US$65Bn mobile operator
4 Verizon Wireless USA US$62Bn mobile operator
5 Telefonica Movil Spain US$55Bn mobile operator
6 T-Mobile Germany US$50Bn mobile operator
7 AT&T Wireless USA US$49Bn mobile operator
8 Orange Mobile France US$47Bn mobile operator
9 TIM Italy US$40Bn mobile operator
10 Samsung Mobile South Korea US$38Bn handset manufacturer
11 NTT DoCoMo Japan US$37Bn mobile operator
12 Sprint Nextel USA US$36Bn mobile operator
13 America Movil Mexico US$31Bn mobile operator
14 KDDI Mobile Japan US$25Bn mobile operator
15 LM Ericsson Mobile Sweden US$24Bn network infrastructure
16 China Unicom China US$22Bn mobile operator
17 Motorola Mobile USA US$21Bn handset manufacturer
18 Huawei Mobile China US$19Bn network infrastructure
19 Softbank Mobile Japan US$18Bn mobile operator
20 Alcatel-Lucent Mobile France US$16Bn network infrastructure
21 Apple iPhone USA US$13Bn handset manufacturer
22 SK Telecom South Korea US$12Bn mobile operator
23 RIM Canada US$11Bn handset manufacturer
24 Telenor Mobile Norway US$11Bn mobile operator
25 MTS Russia US$10Bn mobile operator