QUESTION: 97

A systems administrator needs to configure a new server and external storage for a new production application environment. Based on end-user specifications, the new solution needs to adhere to the following basic requirements:

1. The OS must be installed in a separate disk partition. In case of hard drive failure, it cannot be affected.
2. Application data IOPS performance is a must.
3. Data availability is a high priority, even in the case of multiple hard drive failures.

Which of the following are the BEST options to comply with the user requirements? (Choose three.)

Install the OS on a RAID 0 array.
Install the OS on a RAID 1 array.
Configure RAID 1 for the application data.
Configure RAID 5 for the application data.
Use SSD hard drives for the data application array.
Use SATA hard drives for the data application array.
Use a single JBOD for OS and application data.

Answer(s): B,D,E

Explanation:

To comply with the user requirements, the best options are to install the OS on a RAID 1 array, configure RAID 5 for the application data, and use SSD hard drives for the data application array. Here is why:
RAID 1 is a mirroring technique that creates an exact copy of data on two disks. This provides redundancy and fault tolerance in case of hard drive failure. RAID 1 also improves read performance since either disk can be read at the same time. Therefore, installing the OS on a RAID 1 array meets the first requirement of separating the OS from the application data and protecting it from hard drive failure.
RAID 5 is a striping technique with parity that distributes data and parity blocks across three or more disks. This provides improved performance and storage efficiency compared to RAID 1, as well as fault tolerance in case of a single disk failure. Therefore, configuring RAID 5 for the application data meets the second and third requirements of providing high IOPS performance and data availability. SSD hard drives are solid-state drives that use flash memory to store data. They have no moving parts and offer faster read and write speeds, lower latency, and lower power consumption than traditional HDDs. Therefore, using SSD hard drives for the data application array meets the second requirement of providing high IOPS performance.

Reference:

https://phoenixnap.com/kb/raid-levels-and-types https://en.wikipedia.org/wiki/Standard_RAID_levels

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QUESTION: 98

A server technician installs a new NIC on a server and configures the NIC for IP connectivity. The technician then tests the connection using the ping command. Given the following partial output of the ping and ipconfig commands:

Which of the following caused the issue?

Duplicate IP address
Incorrect default gateway
DHCP misconfiguration
Incorrect routing table

Answer(s): A

Explanation:

The ping command output shows that the NIC has an IP address of 192.168.1.100 and a default gateway of 192.168.1.1. However, when the technician tries to ping the default gateway, the reply comes from another IP address: 192.168.1.101. This means that there is another device on the network that has the same IP address as the default gateway, and it is responding to the ping request instead of the intended destination.
A duplicate IP address can cause network connectivity problems, such as packet loss, routing errors, or unreachable hosts. To resolve this issue, the technician should either change the IP address of the default gateway or the device that is conflicting with it, or use DHCP to assign IP addresses automatically and avoid conflicts.
The other options are not correct because they do not explain the ping output. An incorrect default gateway would cause no reply or a destination unreachable message, not a reply from a different IP address. A DHCP misconfiguration would cause an invalid or no IP address on the NIC, not a duplicate IP address on the network. An incorrect routing table would cause routing errors or unreachable destinations, not a reply from a different IP address.

Reference:

https://askleo.com/what_is_ping_and_what_does_its_output_tell_me/ https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/ping

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QUESTION: 99

A server administrator is swapping out the GPU card inside a server.
Which of the following actions should the administrator take FIRST?

Inspect the GPU that is being installed.
Ensure the GPU meets HCL guidelines.
Shut down the server.
Disconnect the power from the rack.

Answer(s): C

Explanation:

The first action that the administrator should take before swapping out the GPU card inside a server is to shut down the server. This is to ensure that the server is not running any processes that might be using the GPU card, and to prevent any damage to the hardware or data loss due to sudden power loss. Shutting down the server also reduces the risk of electrostatic discharge (ESD) that might harm the components.

Reference:

https://pcgearhead.com/installing-a-new-gpu/

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QUESTION: 100

A server administrator must respond to tickets within a certain amount of time. The server administrator needs to adhere to the:

BI
RTO.
MTTR.
SLA.

Answer(s): D

Explanation:

The server administrator needs to adhere to the Service Level Agreement (SLA) when responding to tickets within a certain amount of time. An SLA is a contract between a service provider and a customer that defines the quality, availability, and responsibilities of the service. An SLA may specify the response time for tickets, as well as other metrics such as uptime, performance, security, and backup frequency.

Reference:

https://www.ibm.com/cloud/learn/service-level-agreements

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