Database Administration Questions


Q:

3/8 as a decimal

A) 1.375 B) 2.375
C) 0.375 D) 3.75
 
Answer & Explanation Answer: C) 0.375

Explanation:

Expressing 3/8 as a decimal fraction:

We can convert 3/8 into a decimal fraction by just dividing 3 by 8 or making 3 into 8 parts.

Then, it is 3/8 = 0.375 as a decimal fraction.

 

Other Method::

3/8 as a Decimal :

In this we should convert the denominator into 10, 100, 1000, 10000, 100000,... to make it simple.

Now to make 8 into 1000, we multiply numerator and denominator with 125

 

=> (3 x 125)/(8 x 125) = 375/1000 = 0.375.

 

Report Error

View Answer Report Error Discuss

3 2602
Q:

Is boiling water a chemical change?

Answer

No. Boiling water is not a chemical change. Because in this process it doesn't loss its properties. It just changes its state i.e, from liquid state to gaseous.


 


Hence, Boiling water is a Physiacl change and not a chemical change.

Report Error

View answer Workspace Report Error Discuss

0 2601
Q:

What does a VLAN do?

A) Breaks up broadcast domains in a layer 2 switch internetwork B) Provides multiple broadcast domains within a single collision domain
C) Provides multiple collision domains on one switch port D) Acts as the fastest port to all servers
 
Answer & Explanation Answer: A) Breaks up broadcast domains in a layer 2 switch internetwork

Explanation:

virtual LAN (VLAN) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2). LAN is the abbreviation for local area network and in this context, virtual refers to a physical object recreated and altered by additional logic.

VLANs work by applying tags to network packets and handling these tags in networking systems – creating the appearance and functionality of network traffic that is physically on a single network but acts as if it is split between separate networks. In this way, VLANs can keep network applications separate despite being connected to the same physical network, and without requiring multiple sets of cabling and networking devices to be deployed.

Report Error

View Answer Report Error Discuss

0 2595
Q:

What areas would you like to further develop professionally?

Answer

Why they ask this and what they are looking for:


 


This question "What areas would you like to further develop professionally?" will uncover whether you are interested and knowledgeable about your own development and as such will can be a cloaked attempt to discover your weaknesses.


A common target of the question is to discover how motivated you are to extend yourself. If you are motivated to learn, then you are probably more motivated to do the job well.


 


How to answer this:


First show that you are concerned and active about your own development. You can indicate how development has worked for your in the past.


You're right, continued learning and development is important and I continue to work to improve key skills.


Do answer the question, of course, but do not show gaping holes in your skill set and especially those in key areas required in the job. A good trick is to talk about developing your skills in new areas that will be of future benefit to the company.


 


For example : I am in programming now and love the work, but one day I would like to develop into a management role.


 


Hope this helps you..!

Report Error

View answer Workspace Report Error Discuss

1 2572
Q:

What is the difference between creating String as new() and literal ?

Answer

When we create string with new() Operator, it’s created in heap and not added into string pool while String created using literal are created in String pool itself which exists in PermGen area of heap.



String s = new String("Test");

does not put the object in String pool , we need to call String.intern() method which is used to put them into String pool explicitly. its only when you create String object as String literal e.g. String s = "Test" Java automatically put that into String pool.

Report Error

View answer Workspace Report Error Discuss

1 2568
Q:

The multi part identifier could not be bound is

Answer

One of the most common errors that you might face in join statements is 


 


Server: Msg 4104, Level 16, State 1, Line 1
The multi-part identifier could not be bound.


 


A multipart identifier is any description of a field or table that contains multiple parts - for instance MyTable.SomeRow - if it can't be bound that means there's something wrong with it - either you've got a simple typo, or a confusion between table and column. It can also be caused by using reserved words in your table or field names and not surrounding them with [].


 


The main reason for this error is that the source table cannot be found, for example if you have statement such as Table1.OrderDate, and then if you get error above, this means that Table1 cannot be found in the query. Sometimes you can see that source table exists in the query, but T-SQL cannot understand it, especially when you write join statements.

Report Error

View answer Workspace Report Error Discuss

0 2564
Q:

Jio is a big shot at reducing the cost of Internet access in India. The U.S., despite being the richest country in the world, lags far behind in terms of cost and penetration of Internet access. Cheap access to the Internet is an important step in bridging the access gap – access to good education, good healthcare, etc. But the market reaction to Jio is similar to the U.S. market’s reaction to firms announcing their intention to diversify.

(A) The final group of losers is the current shareholders of RIL. On announcement of Jio, the stock price of RIL fell.

(B) It shows that the market’s short-term reaction is usually proven correct in the long-run.

(C) On losing end, the first groups of losers are the shareholders of other telecom companies.

(D) The large amount of revenue the Government of India gets from auctioning off the nation’s natural resources is not necessarily a good thing because the Government does not have a stellar track record when it comes to spending the money. A large fraction of Government spending is wasted.

(E) The second loser is the Government of India. The big money the Indian Government was raking in selling cellular bandwidth was actually coming from the pockets of the cellular consumers. 

(F) The first obvious winners of this scheme are customers.

(G) The second winner is Mr. Ambani; he can potentially make a lasting impact as the man who brought Internet to millions of Indians.

 

Question:

Which of the following supports the decision of other companies opposing Reliance JIO Scheme?

A) Only A B) Both A & B
C) Only C D) Both C & E
 
Answer & Explanation Answer: D) Both C & E

Explanation:

As the arguments C and E states that other companies are on the losing end with this scheme, it is the only appropriate answer to this question.

Report Error

View Answer Report Error Discuss

4 2560
Q:

Who makes it has no need of it.

What is it?

Answer

A Coffin.

Report Error

View answer Workspace Report Error Discuss

3 2557