Certification Questions

Q:

Which of the following extenders allows data to be presented in a three dimensional format?

A) DB2 AVI Extender B) DB2 XML Extender
C) DB2 Text Extender D) DB2 Spatial Extender
 
Answer & Explanation Answer: D) DB2 Spatial Extender

Explanation:
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Filed Under: IBM Certification

8 4480
Q:

To enable RIPng , which of the following would you use?

A) Router1 (config - if) # ipv6 ospf 10 area 0.0.0.0 B) Router1 (config - if) # ipv6 router rip 1
C) Router1 (config - if) # ipv6 router eigrp 10 D) Router1 (config - if) # ospf ipv6 10 area 0
 
Answer & Explanation Answer: B) Router1 (config - if) # ipv6 router rip 1

Explanation:

It's pretty simple to enable RIPng for IPv6. You configure it right on the interface where you want RIP to run with the ipv6 router rip number command.

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0 4465
Q:

You create a mirrored volume on a Windows 2000 Server computer. What additional item should you create?

A) A new Config.nt file B) A new Auto exec.nt file
C) A fault tolerance boot disk D) A set of Windows 2000 Setup Boot Disks
 
Answer & Explanation Answer: C) A fault tolerance boot disk

Explanation:

A fault tolerance boot disk is a floppy disk that you create that enables you to boot your Windows 2000 computer in the event that the first disk in your computer's mirrored volume fails. This disk contains an edited copy of the Boot.ini file.

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2 4426
Q:

A column defined as UNIQUE can contain Nulls while a column defined as PRIMARY KEY can't contain Nulls

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Because a table can have only one primary key

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1 4424
Q:

You want to implement Active Directory on your Windows 2000 network. Your network consists of Windows 2000 Server computers, Windows 2000 Professional computers, Windows NT Workstation 4.0 computers, and Windows 98 computers. You want to achieve optimum functionality of all the client computers with Active Directory. What should you do?

A) Install the Directory Service Client on all of the Windows 98 computers. B) Upgrade all of the Windows 98 computers to Windows 2000 Professional
C) Upgrade all of the Windows NT Workstation 4.0 computers and Windows 98 computers to Windows 2000 Professional D) Nothing. Windows 2000 will automatically detect all client computers and optimize them to function with Active Directory.
 
Answer & Explanation Answer: C) Upgrade all of the Windows NT Workstation 4.0 computers and Windows 98 computers to Windows 2000 Professional

Explanation:

To achieve optimum functionality of the client computers, you must upgrade all of them to Windows 2000. Upgrading some of them and/or installing the Directory Service Client will gain some functionality, but the question specifically states that "optimum functionality" is the required result.

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Q:

The DBA can set the registry variable DB2_HASH_JOIN on or off because:

A) hash joins may require more resources to run. B) hash joins are not used unless outer joins are requested.
C) If hash joins are enabled, no other join method can be used. D) Hash joins are only needed when the tables are portioned using hash keys.
 
Answer & Explanation Answer: A) hash joins may require more resources to run.

Explanation:
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8 4415
Q:

You are the database administrator for a financial services company. Employees enter data 24 hours a day into a SQL Server 2000 database. These employees report slower response times when new account information is gathered from branch offices and added to the database. You currently use the following BULK INSERT statement to add the account information.BULK INSERT finance.dbo.customersFROM 'd:bulkaccts143_10142000.txt'WITH DATAFILETYPE = 'char', FIELDTERMINATOR = 't', ROWTERMINATOR = 'n', TABLOCK You want to ensure that response times do not slow when new account information is added to the database. What should you do?

A) Add the BATCHSIZE option to the BULK INSERT statement, and then set the option equal to 10 percent of the number of rows to be loaded. B) Add the ROWS_PER_BATCH option to the BULK INSERT statement, and then set the option equal to 10 percent of the number of rows to be loaded.
C) Drop the indexes for the Customers table before the data load, and then re-create the indexes after the data load is complete. D) Remove the TABLOCK option from the BULK INSERT statement.
 
Answer & Explanation Answer: D) Remove the TABLOCK option from the BULK INSERT statement.

Explanation:

The TABLOCK hint increases the number of locks during the adding process. This is the reason why response time are slows down during this process. By removing the TABLOCK hint the default more granular row-level lock will be used. This would decrease the scope of the locks which would result in less waiting jobs and performance would improve.


Note: The BULK INSERT statement is used to copy a data file into a database table or view in a format specified by the user. The BULK INSERT statement accepts the TABLOCK hint, which allows the user to specify the locking behavior that the BULK INSERT statement should use. TABLOCK specifies that a bulk update table-level lock is taken for the duration of the bulk copy. If TABLOCK is not specified, the default uses row-level locks.

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3 4406
Q:

What router command allows you to determine whether an IP access list is enabled on a particular interface?

A) show ip port B) show access - lists
C) show ip interface D) show access - lists interface
 
Answer & Explanation Answer: C) show ip interface

Explanation:

Of the available choices only the show ip interface command will tell you which interfaces have access lists applied. show access - lists will not show you which interfaces have an access list applied. 

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