File Info
| Exam | Upgrade to Java SE 7 Programmer |
| Number | 1Z0-805 |
| File Name | Oracle.1Z0-805.PracticeTest.2024-06-05.89q.tqb |
| Size | 4 MB |
| Posted | Jun 05, 2024 |
| Download | Oracle.1Z0-805.PracticeTest.2024-06-05.89q.tqb |
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Demo Questions
Question 1
Which two file attribute views support reading or updating the owner of a file?
- AclFileAttributeView
- DosFileAttributeView
- FileOwnerAttributeView
- FileStoreAttributeView
- BasicFileAttributeView
Correct answer: AC
Explanation:
A: The AclFileAttributeView is a file attribute view that supports reading or updating a file's Access Control Lists (ACL) or file owner attributes.C: The FileOwnerAttributeView.setOwner(UserPrincipal owner) method updates the file owner.Reference: Interface AclFileAttributeView, Interface FileOwnerAttributeView A: The AclFileAttributeView is a file attribute view that supports reading or updating a file's Access Control Lists (ACL) or file owner attributes.
C: The FileOwnerAttributeView.setOwner(UserPrincipal owner) method updates the file owner.
Reference: Interface AclFileAttributeView, Interface FileOwnerAttributeView
Question 2
Given:
What is the result?
- 1
- 2
- 3
- 4
Correct answer: B
Explanation:
Java SE and Java ME will increase the count variable as it matches. java EE and java FX does not match. Java SE and Java ME will increase the count variable as it matches. java EE and java FX does not match.
Question 3
Given:
Which pair's statements should you insert at lines ** and lines *** (respectively) to acquire and release the most appropriate lock?
- rwlock.readLock().acquire();rwlock.readLock().release();
- rwlock.readLock().lock();rwlock.readLock().unlock();
- rwlock.getLock().acquire(); rwlock.getLock().release();
- rwlock.getLock().lock();rwlock.getLock().Unlock();
- relock.WriteLock().acquire();rwlock.writeLock().release();
- rwlock.writeLock().lock();rwlock.WriteLock().unlock();
Correct answer: B
Explanation:
We need a read lock, not a write lock, we are just reading data, not writing/updating data.To aquire and release the lock the method lock() and unlock are used.Incorrect answers:A: No such methods aquire or release.E, F: We do not need writelock.C, D: No method getlock.Reference: Class ReentrantReadWriteLock We need a read lock, not a write lock, we are just reading data, not writing/updating data.
To aquire and release the lock the method lock() and unlock are used.
Incorrect answers:
A: No such methods aquire or release.
E, F: We do not need writelock.
C, D: No method getlock.
Reference: Class ReentrantReadWriteLock
