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Braindumps for "BCP-811" Exam

Developing Java Applications for the BlackBerry Platform

 Question 1
Which block of code will ensure that a network connection has been closed? (Choose one.)

A. Exhibit A
B. Exhibit B
C. Exhibit C
D. Exhibit D
E. Exhibit E

Answer: A

Question 2.
Consider the code below:
What is a more efficient way of calculating the midpoint? (Choose one.)

A. int midpoint = (int) ((double) width) / 2.0;
B. int midpoint = Fixed32.div(width, 2);
C. int midpoint = (int) (width * 0.5f);
D. int midpoint = width >> 1;
E. int midpoint = width >> 2;

Answer: D

Question 3.
Which two of the following operations should be avoided on the main event thread? (Choose two.)

A. Pushing a screen onto the display stack
B. Displaying a Dialog screen
C. Performing network communication
D. Calling the sleep method
E. Capturing of keyboard input

Answer: C, D

Question 4.
A BlackBerry device application collects information about several hundred books. The application needs to sort books by title. 

Which combination of data structures should be used to manage the objects? (Choose one.)

A. net.rim.device.api.util.SimpleSortingVector and net.rim.device.api.util.StringComparator
B. java.util.Hashtable and net.rim.device.api.util.StringComparator
C. net.rim.device.api.util.StringRepository and net.rim.device.api.util.StringPattern
D. java.util.TreeSet and net.rim.device.api.util.StringComparator
E. java.util.Stack and net.rim.device.api.util.StringComparator

Answer: A

Question 5.
An application receives notification that a new data object is being saved in the RuntimeStore. It may take up to 60 seconds to save this data. 

Which method should the application use to obtain the object from the RuntimeStore? (Choose one.)

A. get( long objectUID )
B. getInstance()
C. fetch( Class objectClass, long timeout )
D. waitFor( long objectUID )
E. put( long objectUID, Object anObject)

Answer: D

Question 6.
The following application is set to auto-run at startup:
Which approach would most reliably solve the problem this application will encounter? (Choose one.)

A. It should callThread.sleep() for ten seconds before pushing the screen to verify that the 
    BlackBerry device has completed its boot up process
B. Threads should be moved to their own standalone class so that they do not cause a security 
    exception
C. Theint values in the MenuItem constructor should equal the y MenuString length to leave 
    enough room for the string
D. It should use theApplicationManager.inStartup() before pushing the screen to verify that the 
    BlackBerry device has completed its boot up process
E. It should use theApplicationManager.inStartup() before pushing the screen to verify that the 
    BlackBerry device has completed its boot up process
F. It should use theApplicationManager.inStartup() before pushing the screen to verify that the 
    BlackBerry device has completed its boot up process
G. ThemakeMenu method of MainScreen must be overridden to use a menu

Answer: D, E, F

Question 7.
A developer is designing a BlackBerry device application that provides summaries of large amounts of data. The summaries require extensive computations. 

Which design approach will meet these requirements? (Choose one.)

A. Store the full set of data locally on removable media using a compressed format
B. Supplement memory available on the BlackBerry device and compute the results locally
C. Use URL encodings to expedite the transfer of data between a remote server and the 
    BlackBerry device
D. Compute the summary on a remote server and access the results through a BlackBerry 
    Enterprise Server connection
E. Use local storage and the floating point processor on the BlackBerry device to speed up 
    computations

Answer: B

Question 8.
A customer needs an application that will store temporary data and expose it to other BlackBerry device applications. 

Which API will meet this requirement? (Choose one.)

A. RuntimeStore
B. PersistentStore
C. Location Based Services
D. Global Events
E. Connector

Answer: A

Question 9.
An application requires the creation of a custom field that can display animation. Which class and method combination should be used to accomplish this task? (Choose one.)

A. Field.paint(Graphics graphics)
B. MainScreen.paint(Graphics graphics)
C. Field.subpaint(Graphics graphics)
D. Screen.draw(Graphics graphics)
E. GameCanvas.paint(Graphics graphics)

Answer: A

Question 10.
Consider the Counter class whose code is below:
Assuming that the go() method is always invoked serially, why is a different count printed at the end almost every time that it is invoked? (Choose one.)

A. Therun() method is not declared "synchronized"
B. The _count variable is not declared "synchronized"
C. The ++ operator is not atomic
D. The _count variable overflows
E. The Counter class is not declared "synchronized"

Answer: C



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Braindumps: Dumps for E20-547 Exam Brain Dump

Study Guides and Actual Real Exam Questions For Oracle OCP, MCSE, MCSA, CCNA, CompTIA


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Braindumps for "E20-547" Exam

VNX Solutions Specialist Exam for Storage Administrators

 Question 1.
Which command is used to assign root privileges to an existing user?

A. /nas/sbin/enableRootToUser
B. /nas/sbin/addRootIdToUser
C. /nas/sbin/switchToRoot
D. /nas/sbin/enableRootID

Answer: B

Explanation: 

Question 2.
Which Unisphere storage domain role will limit a user to the administration of file system checkpoints, LUN mirrors, and Replication Manager tasks?

A. Data recovery
B. Data protection
C. Administrator
D. NAS administrator

Answer: A

Explanation: 

Question 3.
In a VNX system, which feature manages access to specific management clients?

A. IP address filtering
B. Auditing
C. Public key infrastructure
D. User privileges

Answer: A

Explanation: 

Question 4.
Which LDAP username format is correct for CLI authentication on a VNX system?

A. \
B. .FQDN
C. @FQDN
D. 

Answer: C

Explanation: 

Question 5.
What is the maximum number of LDAP service connections available when configuring LDAP for VNX Block storage systems?

A. 1
B. 2
C. 4
D. 8

Answer: B

Explanation: 

Question 6.
What is the default port used for secure LDAP (LDAPS) communications on a VNX system?

A. 389
B. 443
C. 563
D. 636

Answer: D

Explanation: 

Question 7.
In which file are the default audit events defined?

A. /etc/auditd.conf
B. /nas/audit/audit.rules
C. /nas/etc/audit.rules
D. /etc/audit/audit.rules

Answer: D

Explanation: 

Question 8.
In which directory are VNX audit logs located?

A. /celerra/audit
B. /nas/var/log
C. /nas/log
D. /var/log

Answer: A

Explanation: 

Question 9.
What is the length of RSA keys used to encrypt and decrypt network traffic in a VNX environment?

A. 2048 bits
B. 1024 bits
C. 2048 bytes
D. 1024 bytes

Answer: A

Explanation: 

Question 10.
Which authority (ies) signs certificates generated for Data Movers?

A. Data Movers
B. External CA, Control Station
C. Management server
D. Data Movers, management server

Answer: B

Explanation: 


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