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試験番号：RC0-C02 認定資格試験
試験科目：「CompTIA Advanced Security Practitioner (CASP) Recertification Exam for Continuing Education」
最近更新時間：2017-03-26
問題と解答：310
NO.1 A business wants to start using social media to promote the corporation and to ensure that
customers have a good experience with their products. Which of the following security items should
the company have in place before implementation? (Select TWO).
A. All staff needs to be instructed in the proper use of social media in the work environment.
B. The company must dedicate specific staff to act as social media representatives of the company.
C. The security policy needs to be reviewed to ensure that social media policy is properly
implemented.
D. The company should ensure that the company has sufficient bandwidth to allow for social media
traffic.
E. The finance department must provide a cost benefit analysis for social media.
F. Senior staff biogs should be ghost written by marketing professionals.
Answer: B,C
RC0-C02 難易度
NO.2 A security administrator is tasked with increasing the availability of the storage networks while
enhancing the performance of existing applications. Which of the following technologies should the
administrator implement to meet these goals? (Select TWO).
A. Multipath
B. Dynamic disk pools
C. Deduplication
D. vSAN
E. LUN masking
F. Snapshots
Answer: A,B
RC0-C02 信頼度 RC0-C02 学校
Explanation:
We can use dynamic disk pools (DDP) to increase availability and improve performance compared to
traditional RAID. Multipathing also improves availability by creating multiple paths to the storage (in
case one path fails) and it improves the performance by aggregating the performance of the multiple
paths.
DDP dynamically distributes all data, spare capacity, and protection information across a pool of
drives.
Effectively, DDP is a new type of RAID level, built on RAID 6. It uses an intelligent algorithm to define
where each chunk of data should reside. In traditional RAID, drives are organized into arrays, and
logical drives are written across stripes on the physical drives in the array. Hot spares contain no data
until a drive fails, leaving that spare capacity stranded and without a purpose. In the event of a drive
failure, the data is recreated on the hot spare, significantly impacting the performance of all drives in
the array during the rebuild process.
With DDP, each logical drive's data and spare capacity is distributed across all drives in the pool, so all
drives contribute to the aggregate 10 of the logical drive, and the spare capacity is available to all
logical drives. In the event of a physical drive failure, data is reconstructed throughout the disk pool.
Basically, the data that had previously resided on the failed drive is redistributed across all drives in
the pool. Recovery from a failed drive may be up to ten times faster than a rebuild in a traditional
RAID set, and the performance degradation is much less during the rebuild.
In computer storage, multipath 1/0 is a fault-tolerance and performance-enhancement technique
that defines more than one physical path between the CPU in a computer system and its massstorage
devices through the buses, controllers, switches, and bridge devices connecting them.
As an example, a SCSI hard disk drive may connect to two SCSI controllers on the same computer, or
a disk may connect to two Fibre Channel ports. Should one controller, port or switch fail, the
operating system can route the 1/0 through the remaining controller, port or switch transparently
and with no changes visible to the applications.
Incorrect Answers:
A: LUN masking is used to control which LUNs are visible to specific servers. It does not improve the
availability of the storage networks or the performance of existing applications.
B: A snapshot is a point in time image of the data on a SAN used for backup or recovery purposes. It
does not improve the availability of the storage networks or the performance of existing applications.
C: A vSAN is local storage on hypervisor servers combined together to create a "virtual SAN". A vSAN
does not improve the availability of the storage networks or the performance of existing applications.
F: Deduplication is the process of eliminating multiple copies of the same data to save storage space.
It does not improve the availability of the storage networks or the performance of existing
applications.
References:
http://blog.glcomp.com/2013/06/what-is-dynamic-disk-pooling.html
https://en.wikipedia.org/wiki/Multipath_l/0
NO.3 A company provides on-demand virtual computing for a sensitive project. The company
implements a fully virtualized datacenter and terminal server access with two-factor authentication
for access to sensitive data. The security administrator at the company has uncovered a breach in
data confidentiality.
Sensitive data was found on a hidden directory within the hypervisor. Which of the following has
MOST likely occurred?
A. A virtual guest was left un-patched and an attacker was able to use a privilege escalation attack to
gain unauthorized access.
B. A host server was left Un-patched and an attacker was able to use a VMEscape attack to gain
unauthorized access.
C. An employee with administrative access to the virtual guests was able to dump the guest memory
onto their mapped disk.
D. A stolen two factor token and a memory mapping RAM exploit were used to move data from one
virtual guest to an unauthorized similar token.
Answer: B
RC0-C02 最新 RC0-C02 最新版
NO.4 A corporation has expanded for the first time by integrating several newly acquired businesses.
Which of the following are the FIRST tasks that the security team should undertake? (Select TWO).
A. Federate identity management systems.
B. Conduct a risk analysis of each acquired company's networks.
C. Remove acquired companies Internet access.
D. Re-image all end user computers to a standard image.
E. Install firewalls between the businesses.
F. Develop interconnection policy.
Answer: B,F
RC0-C02 最新版
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