This set of Cloud Computing Multiple Choice Questions & Answers (MCQs) focuses on “Cloud Backup Solutions”.
1. Which of the following factors are deemed to be important considerations for evaluating cloud solutions?
a) Seamless maintenance and upgrades
b) Performance characteristics
c) Client self-service
d) All of the mentioned
View Answer
Explanation: In addition to assigning security-provisioned cloud storage to a client or service requester, a cloud storage service provider must be able to deliver a measured level of service.
2. Point out the correct statement.
a) QoS levels may be applied to different services against a single virtual storage container
b) An SLA might specify that a particular Quality of Service (QoS) for a virtual storage container may be measured in terms of the I/O per second
c) To provide for scaling, a virtual storage container must be easily migrated from one storage system to another
d) All of the mentioned
View Answer
Explanation: One unique characteristic of cloud-based storage solutions is that they permit rapid scaling, both in terms of performance and storage capacity.
3. Which of the following figure is correct according to categories shown?
a) 
b) 
c) 
d) All of the mentioned
View Answer
Explanation: Backups may be categorized as belonging to one of the above types.
4. How many categories of backup exist in cloud storage?
a) 3
b) 4
c) 5
d) None of the mentioned
View Answer
Explanation: Seven categories of backup exist for cloud storage.
5. Point out the wrong statement.
a) To scale in, the service must allow for stored data to span additional storage systems
b) To scale up, the service must allow for more disks and more spindles to be provisioned
c) To increase the capacity of a storage provision, it is necessary to provide the capability to scale up or scale out across storage systems
d) None of the mentioned
View Answer
Explanation: Cloud storage systems that successfully scale their provisioned storage for clients often allow for the multiple storage systems to be geographically dispersed and often provide load-balancing services across different storage instances.
6. Which of the following is not a backup category?
a) Full system backup
b) Half system backup
c) Image backup
d) All of the mentioned
View Answer
Explanation: An image backup creates a complete copy of a volume.
7. Which of the following backup is also referred to as snapshots?
a) Point-in-time
b) Differential
c) Image backup
d) All of the mentioned
View Answer
Explanation: Software such as Carbonite may take several days to backup a system, but minutes to create the snapshot.
8. Which of the following software supplies full system backup?
a) Carbonite
b) Ghost
c) RDIFF-BACKUP
d) All of the mentioned
View Answer
Explanation: An image backup allows a system to do what is referred to as a bare metal restore.
9. Which of the following backup lets you restore your data to a point in time and saves multiple copies of any file that has been changed?
a) Point-in-time
b) Differential
c) Reverse backup
d) None of the mentioned
View Answer
Explanation: At least 10 to 30 copies of previous versions of files should be saved.
10. The amount of time needed to backup a system is referred to as its _______________
a) backup time
b) backup sheet
c) backup window
d) all of the mentioned
View Answer
Explanation: The first backup is quite slow over an Internet connection, but the incremental backup can be relatively fast.
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