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Q:

Which platforms does Silverlight support?

Answer

Mac OS

Windows Vista

Windows XP SP2

Windows 2000

Windows Server 2003

Linux (Moonlight)

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Subject: Web Technology

Q:

Which among the following is the disadvantage of circular list?

A) An info field that contains the information stored in the node	B) Can’t traverse the list backward
C) A pointer to the node is given we cannot delete the node	D) Both 2 and 3

Answer & Explanation Answer: D) Both 2 and 3

Explanation:

Both 2 and 3 are clearly the diadvantages of circular list

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Filed Under: Database
Job Role: Database Administration

Q:

A team of 8 students goes on an excursion, in two cars, of which one can seat 5 and the other only 4. In how many ways can they travel?

A) 126	B) 240
C) 120	D) 260

Answer & Explanation Answer: A) 126

Explanation:

There are 8 students and the maximum capacity of the cars together is 9.

We may divide the 8 students as follows

Case I: 5 students in the first car and 3 in the second Or

Case II: 4 students in the first car and 4 in the second

Hence, in Case I: 8 students are divided into groups of 5 and 3 in $8 C_{3}$ ways.

Similarly, in Case II: 8 students are divided into two groups of 4 and 4 in $8 C_{4}$ ways.

Therefore, the total number of ways in which 8 students can travel is

$8 C_{3} + 8 C_{4}$ = 56 + 70 = 126.

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Filed Under: Permutations and Combinations

Q:

Which among the following is the relationship constraints

A) Cardinality ratio	B) Participation constraints
C) Both A and B	D) None of the above

Answer & Explanation Answer: C) Both A and B

Explanation:

Both of them are relation ship constraints

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Filed Under: Database
Job Role: Database Administration

Q:

A subset of the database which contain virtual data that is derived from the database files but is not explicitly stored is called

A) Touple	B) View
C) Relation	D) Key

Answer & Explanation Answer: B) View

Explanation:

A view may be a subset of the database or it may contain virtual data that is derived from the database files but is not explicitly stored .

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Filed Under: Database
Job Role: Database Administration

Q:

Consider the word ROTOR. Whichever way you read it, from left to right or from right to left, you get the same word. Such a word is known as palindrome. Find the maximum possible number of 5-letter palindromes.

A) 17756	B) 17576
C) 12657	D) 12666

Answer & Explanation Answer: B) 17576

Explanation:

The first letter from the right can be chosen in 26 ways because there are 26 alphabets.

Having chosen this, the second letter can be chosen in 26 ways

The first two letters can chosen in 26 x 26 = 676 ways

Having chosen the first two letters, the third letter can be chosen in 26 ways.

All the three letters can be chosen in 676 x 26 =17576 ways.

It implies that the maximum possible number of five letter palindromes is 17576 because the fourth letter is the same as the second letter and the fifth letter is the same as the first letter.

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Filed Under: Permutations and Combinations

Q:

A Map is an Array,which contains the addresses of the free space in swap device that are allocatable resources,and the number of the resource unit available there.

A) TRUE

B) FALSE

Answer & Explanation Answer: A) TRUE

Explanation:

The given statement is clearly true.

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Subject: Operating Systems
Exam Prep: GRE

Q:

Which among the following is not aprocess state in unix?

A) Running	B) Runnable
C) Zombie	D) Stopped

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