Free Oracle 1Z0-820 Exam Actual Questions

The questions for 1Z0-820 were last updated On Dec 18, 2024

Question No. 1

View the exhibit to inspect the file system configuration on your server.

You department's backup policy is to perform a full backup to a remote system disk on Saturday.

On each weekday, you are to perform an incremental backup to the same remote system disk.

Each incremental backup will contain only data that has been modified since the previous Saturday backup.

The server file systems must remain available at all times and can never be taken offline.

The backup must not only provide for the recovery of the most recent version of a file, but must also allow recovery of previous versions of a file.

Following your company policy, which two describe the correct procedure to be performed on each weekday for backing up the /data file system to a remote disk named /remote/backup?

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Correct Answer: B, C

You can use thezfs sendcommand to send a copy of a snapshot stream and receive the snapshot stream in another pool on the same system or in another pool on a different system that is used to store backup data.

You can send incremental data by using thezfs send-ioption.

For example:

host1# zfs send -i tank/dana@snap1 tank/dana@snap2 | zfs recv newtank/dana

Note that the first argument (snap1) is the earlier snapshot and the second argument (snap2) is the later snapshot. In this case, the newtank/dana file system must already exist for the incremental receive to be successful.

The incremental snap1 source can be specified as the last component of the snapshot name. This shortcut means you only have to specify the name after the @ sign for snap1, which is assumed to be from the same file system as snap2. For example:

host1# zfs send -i snap1 tank/dana@snap2 > zfs recv newtank/dana

This shortcut syntax is equivalent to the incremental syntax in the preceding example.


Question No. 2

You display the IP Interface information with ipmpstat - i

Which two characteristics are indicated by characters that may be included in the FLAGS column?

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Correct Answer: D, E

The ipmpstat command concisely displays information about the IPMP subsystem. It supports five different output modes, each of which provides a different view of the IPMP subsystem (address, group, interface, probe, and target), described below.

-i

Display IP interface information (''interface'' output mode).

Interface Mode

Interface mode displays the state of all IP interfaces that are tracked by in.mpathd on the system. The following output field is one of the supported:

FLAGS

Assorted information about the IP interface:

i

(D) Unusable due to beingINACTIVE.

s

MarkedSTANDBY.

m

(E) Nominated to send/receive IPv4 multicast for its IPMP group.

b

Nominated to send/receive IPv4 broadcast for its IPMP group.

M

Nominated to send/receive IPv6 multicast for its IPMP group.

d

Unusable due to beingdown.

h

Unusable due to being broughtOFFLINEbyin.mpathdbecause of a duplicate hardware address.


Question No. 3

Review the ZFS dataset output that is displayed on your system:

Which four correctly describe the output?

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Correct Answer: A, C, E, G

A: + Indicates the file/directory was added in the later dataset

C: R Indicates the file/directory was renamed in the later dataset

E: - Indicates the file/directory was removed in the later dataset

G: M Indicates the file/directory was modified in the later dataset

Note: Identifying ZFS Snapshot Differences (zfs diff)

You can determine ZFS snapshot differences by using the zfs diff command.

The following table summarizes the file or directory changes that are identified by the zfs diff command.

File or Directory Change Identifier

* File or directory is modified or file or directory link changed

M

* File or directory is present in the older snapshot but not in the newer snapshot

---

* File or directory is present in the newer snapshot but not in the older snapshot

+

* File or directory is renamed

R


Question No. 4

Consider the following rule file for use with the Basic Audit Reporting Tool (BART).

CHECK all

IGNORE dirmtime

/etc/security

/etc/notices

IGNORE contents

/export/home

IGNORE mtime size contents

/var

CHECK

You are using BART to detect inappropriate changes to the file system.

Identify the two correct statements describing the attributes recorded.

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Correct Answer: D, F

D: According to line /etc/security

F: According to line /export/home

Not E: According to line IGNORE dirmtime

Note: In default mode, the bart compare command, as shown in the following example, checks all the files installed on the system, with the exception of modified directory timestamps (dirmtime):

CHECK all

IGNORE dirmtime

Note 2: The Basic Audit Reporting Tool (BART) feature of Oracle Solaris enables you to comprehensively validate systems by performing file-level checks of a system over time. By creating BART manifests, you can easily and reliably gather information about the components of the software stack that is installed on deployed systems.

BART is a useful tool for integrity management on one system or on a network of systems.


Question No. 5

Which three statements are true for the Oracle Solans 111mage Packaging System (IPS)? (Choose three.)

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Correct Answer: D, E, F