JUNE 2012 - PAPER II

19. The station to hub distance in which it is 2000 metres.

(A) 100 Base-Tx
(B) 100 Base-Fx
(C) 100 Base-T4
(D) 100 Base-T1

Ans:-B

Explanation:- Traditional Ethernet technologies had four standards for 10Mbps. They are,

1. 10BaseT - 100 meters
2. 10Base2 - 185 meters
3. 10Base5 - 500 meters
4. 10BaseFL - 2000 meters

Fast Ethernet is referred by 100BaseX standard. 100BaseX has three specifications. Here 100 refers to the speed 100Mbps. Base refers to Baseband.The specifications are

1. 100BaseT4
2. 100BaseTX
3. 100BaseFX

100BaseFx uses the 2-strand fiber-optic cable and the station to hub distance is 2000 metros.

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20.Main aim of software engineering is to produce

(A) program
(B) software
(C) within budget
(D) software within budget in the given schedule

Ans:-D

Explanation:- Not much explanation needed here.

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21. Key process areas of CMM level 4 are also classified by a process which is

(A) CMM level 2
(B) CMM level 3
(C) CMM level 5
(D) All of the above

Ans:-C

Explanation:- In CMM model there are five maturity levels identified by the numbers 1 to 5. They are

1. Initial
2. Managed
3. Defined
4. Quantitatively Managed
5. Optimizing

If an organization is at level 2, it means it has crossed over level 1 and the same holds true for subsequent levels. At level 4, the process at level 3 is also included. CMM level 5 is not correct because the question only talks about level 4. CMM level 2 is not correct because level 3 includes level 2 as well. So option C is the correct answer.

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22. Validation means

(A) are we building the product right
(B) are we building the right product
(C) verification of fields
(D) None of the above

Ans:-B

Explanation:-
Validation - Are we building the right product
Verification - Are we building the product right.

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23. If a process is under statistical control, then it is

(A) Maintainable
(B) Measurable
(C) Predictable
(D) Verifiable

Ans:-C

Explanation:-
The answer is available in the book "Integrated approach to software engineering" by Pankaj Jalote. A predictable process is also said to be under statistical control.

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