[Free] 2018(Jan) Dumps4cert Examcollection IBM C2090-556 Dumps with VCE and PDF 61-70

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Informix 11.50 Application Developer

Question No: 61 – (Topic 2)

What result will be returned for User B in the attached exhibit?

  1. A quot;row lockedquot; error.

  2. An account_balance of 80.

  3. An account_balance of 90.

  4. An account_balance of either 80 or 90 depending on when buffers were last flushed to disk.

Answer: A

Question No: 62 – (Topic 2)

Which two built-in data types store purely numeric integral values between -(2 63 -1) and 2 63 -1? (Choose two.)

  1. INT8

  2. FLOAT


  4. LONG


Answer: A,C

Question No: 63 – (Topic 2)

What statement describes the logging restriction that applies to distributed queries?

  1. Participating databases must be ANSI-compliant.

  2. Participating databases must have buffered logging.

  3. Participating databases must have unbuffered logging.

  4. Participating database must have identical transaction logging types.

Answer: D

Question No: 64 – (Topic 2)

Where are the UNION and UNION ALL operators in subqueries supported?

  1. In the definition of a view.

  2. In the event or in the action clause of a trigger.

  3. In the FOR UPDATE clause or in an Update cursor.

  4. In SELECT statements within the WHERE clause.

Answer: D

Question No: 65 – (Topic 2)

Which of the following data types can be directly cast to a DATE type?





Answer: C

Question No: 66 – (Topic 2)

Which IBM Informix .NET Provider statement is NOT true?

  1. It works only with Informix.

  2. It uses the SQLI protocol to communicate with Informix.

  3. It uses the DRDA protocol to communicate with Informix.

  4. Its Connection Lifetime attribute specifies how long a connection can remain open.

Answer: C

Question No: 67 – (Topic 2)

Which statement is NOT a characteristic of a sequence?

  1. It specifies a negative value.

  2. It specifies an initial value.

  3. Rolling back a generated value is not allowed.

  4. It has a lower level of concurrency than a serial column.

Answer: D

Question No: 68 – (Topic 2)

Which statement about functional indexes is true?

  1. A functional index uses a special index structure called a R-tree index.

  2. The return values of a function is pre-computed and used to build an index.

  3. The ONLINE keyword is only allowed with the CREATE INDEX and DROP INDEX statements.

  4. The return values of a function cannot be a compressed version of the original columns or some calculation based on them.

Answer: B

Question No: 69 – (Topic 2)

Given the following SQL statements:

Dumps4Cert 2018 PDF and VCE

What is the result of the following query? SELECT user, current, today FROM mytab;

A. josh, 11:30:30, 1/22/2008

  1. The current user name, the current time and the current date.

  2. The query will fail because user, current and today are built-in functions.

  3. The information would be the same as DBINFO(utc_user, utc_current, utc_today).

Answer: B

Question No: 70 – (Topic 2)

Which statement about Dirty Read (Read Uncommited) isolation levels is correct?

  1. It prevents the phantom read phenomenon.

  2. It does not check whether there is any lock on the required rows.

  3. It places a shared lock on the row that is being read and releases it when the next row is locked.

  4. It does not place a lock on the row that it is reading, but does check if any lock is placed on them.

Answer: B

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