EMC Isilon Design Specialist Exam for Technology Architects : E20-554

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EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. When conducting high-level interviews with stakeholders of a project, what are the key questions that should be asked?

A) How much usable storage are you looking for? What client OS will access this storage? Which applications will access this storage?
B) Who are the application owners?
How much usable storage is needed?
What applications will be accessing the storage?
How many users are in your Active Directory?
C) What does your network architecture look like?
Do you have existing NAS infrastructure?
Do you have 10Gb or 1Gb ethernet?
Which applications will access this storage?
D) Which backup application is in use today?
What is your change rate?
How many clients will connect to the cluster?

2. Refer to the exhibit.

Which tool was used to create this output and what is the most significant characteristic?

A) nfsstat and read-intensive access
B) isi_netlogger and moderate metadata read operations
C) nfsstat and write-intensive access
D) iostat and write-intensive access

3. You meet a customer for the first time. They explain that their current environment for NAS does not meet their needs. You want to make sure that Isilon is a good fit for their needs.
What would be a good prequalifying question to ask?

A) What application are you using to create directories?
B) How many users are in your Directory Services?
C) Is your datacenter ISO9001 compliant?
D) What protocols are accessing your NAS?

4. A customer has eight X400 24GB RAM nodes that support 400 client connections. They will be adding 400 more clients in the next few months. They are looking at adding an A-Series node to the cluster to help with client connections.Before they start adding client connections, what hardware change do you recommend?

A) Add an A100 node to offset concurrent client connections
B) Add more network switches to increase the number of connections
C) Add RAM to the nodes to offset concurrent client connections
D) Add nodes with SSD to help with connections

5. A customer has grown 2 PB in the last year. The cluster performs well most times of the day, but occasionally during the day, the customer notices a decrease in performance. You have been told that 'tree-deletes' are taking too long and can only be run on weekends.
What would you recommend to speed up the 'tree-deletes'?

A) Use an A100 node for added CPU performance to help with 'tree-deletes.'
B) Add an SSD node tier for metadata to account for at least 2% of RAW capacity
C) Add an SSD tier for metadata, ensuring all nodes have SSDs.
D) Add 20% more nodes to the cluster to help with degraded performance.

Solutions: