Certification Questions

Q:

If a switch receives a frame and the source MAC address is not in the MAC address table but the destination address is, what will the switch do with the frame?

A) Discard it and send an error message back to the originating host B) Flood the network with the frame
C) Add the source addres and port to the MAC address table and forward the frame out the destination port D) Add the destination to the MAC address table and then forward the frame
 
Answer & Explanation Answer: C) Add the source addres and port to the MAC address table and forward the frame out the destination port

Explanation:

Since the source MAC address is not in the MAC address table, the switch will add the source address and the port it is connected to into the MAC address table and then forward the frame to the outgoing port.

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Q:

Which of the following is a result of route aggregation?

A) Smaller routing tables B) More complete routing tables
C) Increased memory usage D) Increased CPU usage
 
Answer & Explanation Answer: A) Smaller routing tables

Explanation:

Route aggregation results in smaller routing tables.

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Q:

Which of the following connection mechanism is used by Ethernet?

A) Token passing B) CSMA/CD
C) CSMA/CA D) Host polling
 
Answer & Explanation Answer: B) CSMA/CD

Explanation:

Ethernet networking uses Carrier Sense Multiple Access with Collision Detection (CSMA/CD), a protocol that helps devices share the bandwidth evenly without having two devices transmit at the same time on the network medium.

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Q:

Which one is the correct statement in regards with the use of IT2002

A. To record changes to working time.

B. To record completed working hours with a cost center that deviates from an employees master cost center.

C. Record completed planned working hours.

D. Record planned working times that were not completed.

Answer

Answer : A , D

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Q:

Which command is used to return maximum value from result set?

A) MAX B) MIN
C) MAXIMUM D) MAXI
 
Answer & Explanation Answer: A) MAX

Explanation:

MAX command is used to return maximum value from result setMAX 

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Q:

If you have a keyword with a low CTR, what can you expect?

Answer

A lower Quality Score on the Search Network.

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Q:

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an
application. The application connects to a Microsoft SQL Server 2008 database. The database includes a table named dbo.


Documents that contains a column with large binary dat a. You are creating the Data Access Layer (DAL). You add the following code segment to query the dbo.Documents table. (Line numbers are included for reference only.)


01public void LoadDocuments(DbConnection cnx)
02{
03var cmd = cnx.CreateCommand();
04cmd.CommandText = "SELECT * FROM dbo.Documents";
05...
06cnx.Open();
07
08ReadDocument(reader); }


You need to ensure that data can be read as a stream. Which code segment should you insert at line 07?

A) var reader = cmd.ExecuteReader(CommandBehavior.Default); B) var reader = cmd.ExecuteReader(CommandBehavior.SchemaOnly);
C) var reader = cmd.ExecuteReader(CommandBehavior.KeyInfo); D) var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess);
 
Answer & Explanation Answer: D) var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess);

Explanation:
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Q:

The corporate office sends you a new router to connect, but upon connecting the console cable, you see that there is already a configuration on the router. What should be done before a new configuration is entered in the router?

A) RAM should be erased and the router restarted B) Flash should be erased and the router restarted
C) NVRAM should be erased and the router restarted D) The new configuration should be entered and saved
 
Answer & Explanation Answer: C) NVRAM should be erased and the router restarted

Explanation:

Before you start to configure the router, you should erase the NVRAM with the erase startup-config command and then reload the router using the reload command.

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