Data Storage Technologies and Networks Mcqs
Question 1
Which protocol does Fibre Channel Protocol encapsulate on a FC SAN?
Select one:
1. SCSI
2. SAS
3. iSCSI
4. ATA
Feedback
The answer is: SCSI
Question 2
What is the most common technique used for finding duplicate blocks/data?
Select one:
1. Bit-for-bit comparisons on all new blocks
2. Encryption
3. Hashing/fingerprinting
4. Storing all blocks in an content addressable object store
Feedback
The answer is: Hashing/fingerprinting
Question 3
Logical volume managers are examples of what type of storage virtualization?
Select one:
1. Network based virtualization
2. Controller based virtualization
3. Out-of-band virtualization
4. Host based virtualization
Feedback
The answer is: Host based virtualization
Question 4
The amount of time it takes to recover a system is referred to as what?
Select one:
1. Recovery Point Objective (RPO)
2. Recovery Objective (RO)
3. Recovery Method Objective (RMO)
4. Recovery Time Objective (RTO)
Feedback
The answer is: Recovery Time Objective (RTO)
Question 5
Which of the following capacity optimization technologies is being described: Space is allocated to volumes on-demand as data is written to the volume?
Select one:
1. Deduplication
2. Compression
3. Auto-tiering
4. Thin Provisioning
Feedback
The answer is: Thin Provisioning
Question 6
How do devices on an iSCIS SAN learn about topology changes and the likes?
Select one:
1. State Change Notifications
2. Network broadcasts
3. Rescanning the bus
4. Discovery Domains
Feedback
The answer is: Discovery Domains
Question 7
Which of the following replication technologies offer guaranteed zero data loss if recovering from a replica volume?
Select one:
1. Three site cascade topology
2. Application layer replication
3. Asynchronous replication
4. Synchronous replication
Feedback
The answer is: Synchronous replication
Question 8
Which of the following describes a “backup window”?
Select one:
1. Period of time during which data can be restored
2. Period of time during which server and application upgrades can take place
3. Period of time during which server and application backups can occur
4. Period of time when servers are shutdown so that they can be backed up
Feedback
The answer is: Period of time during which server and application backups can occur
Question 9
Which technology allows administrators to allocate more storage than they actually have?
Select one:
1. Under-provisioning
2. Thick-provisioning
3. Right-provisioning
4. Over-provisioning
Feedback
The answer is: Over-provisioning
Question 10
What physical component does a host need in order to connect to a FC SAN?
Select one:
1. HBA
2. HCA
3. ToE NIC
4. LOM NIC
Feedback
The answer is: HBA
Question 11
What kind of scenarios does storage replication assist in recovery from?
Select one:
1. Power failures and natural disasters
2. Replication data corruption
3. Virus
4. User accidentally deleting data
Feedback
The answer is: Power failures and natural disasters
Question 12
Which of the following effectively describes capacity optimization technologies?
Select one:
1. Technologies used to reduce the space required to store persistent data
2. Technologies used to duplicate stored data
3. Technologies used to reduce the power consumed by media used to store data
4. Technologies used to improve the performance of data stored on disk
Feedback
The answer is: Technologies used to reduce the space required to store persistent data
Question 13
What kind of backup allows a system to be backed up without being shut down?
Select one:
1. Hot backup
2. Warm backup
3. Cold Backup
4. Frozen backup
Feedback
The answer is: Hot backup
Question 14
What is the major function of backup?
Select one:
1. To roll an application back up to a previous time
2. To archive old files
3. To archive sensitive files and emails
4. To be able to recovery data to a point in time
Feedback
The answer is: To be able to recovery data to a point in time
Question 15
Which of the following is not commonly a trait of a snapshot?
Select one:
1. Pointer based
2. Point in Time copy
3. Space efficient
4. Full block copy
Feedback
The answer is: Full block copy
Question 16
Which of the following is a benefit of storage virtualization?
Select one:
1. Simplified storage management
2. Reduced number of storage arrays
3. Increased support levels
4. Increased capacity
Feedback
The answer is: Simplified storage management
Question 17
What kind of backup backs up data over the SAN without data passing through the app server?
Select one:
1. LAN based backup
2. WAN backup
3. Serverless backup
4. LAN-free backup
Feedback
The answer is: Serverless backup
Question 18
Which capacity optimization technology is being described: Recognizing blocks of data already stored, and only storing a single copy?
Select one:
1. Over-provisioning
2. Compression
3. Deduplication
4. Tiering
Feedback
The answer is: Deduplication
Question 19
What is a common factor influencing the need for archiving?
Select one:
1. Cost
2. Performance
3. Simplicity of implementation
4. Legislation
Feedback
The answer is: Legislation
Question 20
What is a potential advantage of array based replication over and above hypervisor and application based replication?
Select one:
1. Requires smaller replication links
2. Requires less hardware
3. Offloads replication work from the host
4. More tightly integrated with applications
Feedback
The answer is: Offloads replication work from the host
