Troubleshooting Slow Performance - CompTIA Network+ Exam

The backup server connects to a NAS device using block-level storage over Ethernet.

The performance is very slow, however, and the network technician suspects the performance issues are network related.

Which of the following should the technician do to improve performance?

A.

Utilize UDP to eliminate packet overhead

B.

Turn off MDIX settings on the NAS and server switchports

C.

Enable jumbo frames on the NAS and server

D.

Encapsulate the storage traffic in a GRE tunnel.

C.

The backup server is connecting to a NAS device using block-level storage over Ethernet, but the performance is very slow. The network technician suspects that the performance issues are network-related, and must take appropriate action to improve the performance.

Option A: Utilize UDP to eliminate packet overhead Utilizing UDP (User Datagram Protocol) can improve performance, as it is a connectionless protocol that does not have the same overhead as TCP (Transmission Control Protocol). However, this option may not be suitable for block-level storage, which requires reliable data transmission.

Option B: Turn off MDIX settings on the NAS and server switchports MDIX (Medium Dependent Interface Crossover) is used to automatically detect the cable type and configure the Ethernet interface accordingly. Disabling this setting could potentially cause more problems and may not improve performance in this situation.

Option C: Enable jumbo frames on the NAS and server Jumbo frames are larger than standard Ethernet frames, which can reduce overhead and improve performance for certain types of data transfers, including block-level storage. Enabling jumbo frames on both the NAS and server can potentially improve the performance in this situation.

Option D: Encapsulate the storage traffic in a GRE tunnel. GRE (Generic Routing Encapsulation) is a tunneling protocol that can be used to encapsulate various types of network traffic, including storage traffic. However, this option may add more overhead to the network and may not improve performance in this situation.

Based on the options provided, option C (enabling jumbo frames) is the most appropriate solution to improve performance for block-level storage over Ethernet.