EMC D-ISM-FN-01 - Dell Information Storage and Management Foundations v2 Exam

Afull backupcapturesall dataeach time it runs.

Main advantage:Fastest recovery because no additional backup sets (like incrementals or differentials) need to be combined.

Disadvantage:Takes more backup time and requires more storage space compared to incremental backups.

Option B:Full backups have a higher impact because of the time and bandwidth required.

Option C:Full backups consume the most storage.

Option D:Full backups are not the fastest in terms of backup window – they are the fastest in recovery.

Remote data protection and recovery solutions, like replication and cloud-based backup, are primarily designed to ensuremaximum application and information availability. They protect data in the event of:

Local failures(disk, server, or site outages)

Natural disasters(floods, fires)

Ransomware attacks

By having off-site copies and failover options, businesses maintain continuous access to critical data.

Big Data's"variety"refers to the challenge of integrating different data types (structured, semi-structured, unstructured) from various sources.

The key challenge is tocombine and manage this data cost-effectively, ensuring analytics systems can process it seamlessly.

Generating real-time datais about velocity, not variety.

Storing data over yearsis about volume.

Reducing volumeis more about data management, not variety.

RAID 1isdisk mirroring. It writes identical copies of data to two disks simultaneously, providing redundancy.

Minimum of 2 disks (no parity, no striping).

Excellent read performance, write performance equivalent to a single disk.

Providesfault tolerancebecause data is duplicated.

To calculate the MTBF, we need to determine the total operational time and the number of failures.

Total operational time (Monday to Friday):5 days × 24 hours = 120 hours

Number of failures:3 (Tuesday, Thursday, Friday)

MTBF = Total operational time / Number of failures

MTBF = 120 hours / 3 = 40 hours

Thefifth stageof penetration testing is known aspost-exploitationoranalysis of the compromised environment. It involves:

Checking the compromised system/networkto determine the scope of access.

Identifying potential for further exploitation.

Gathering information about the environment.

Option Arelates to the risk assessment phase.

Option Bis typically done in post-exploitation but isn’t the main step.

Option D(collecting evidence) is more related to reporting/documentation at the end.

In traditional storage provisioning, the RAID configuration significantly impacts the storage system's characteristics:

RAID Level: Determines data redundancy and fault tolerance. For example, RAID 1 mirrors data, providing high availability, while RAID 5 uses parity, balancing performance and redundancy.

Number of Drives: Affects both capacity and performance. More drives can increase total storage capacity and improve performance through parallel data access.

Make of Drives: While drive quality matters, it's less influential than RAID configuration in determining overall system characteristics.

Capacity of Drives: Impacts total storage size but doesn't directly influence performance or availability as significantly as RAID level and drive count.

Monitoringis the ongoing process of observing and tracking the performance and availability of IT infrastructure, including:

Storage devices

File systems

Ports and connectivity

It helps ensure service levels are met and detect potential issues.

Reporting: Summarizes data (often based on monitoring data).

Alerting: Notifies of specific events or thresholds (also uses monitoring data).

Infrastructure discovery: Detects and inventories devices.

Log files record events and messages related to the operations of a virtual machine. They provide detailed information about the VM's behavior, errors, and system messages, which are crucial for troubleshooting.