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RC0-C02試験番号:RC0-C02 キャリアパス
試験科目:「CompTIA Advanced Security Practitioner (CASP) Recertification Exam for Continuing Education」
最近更新時間:2017-06-08
問題と解答:310

>> RC0-C02 キャリアパス

 

NO.1 A completely new class of web-based vulnerabilities has been discovered. Claims have been
made that all common web-based development frameworks are susceptible to attack. Proof-of-
concept details have emerged on the Internet. A security advisor within a company has been asked to
provide recommendations on how to respond quickly to these vulnerabilities. Which of the following
BEST describes how the security advisor should respond?
A. Assess the reliability of the information source, likelihood of exploitability, and impact to hosted
data.
Attempt to exploit via the proof-of-concept code. Consider remediation options.
B. Review vulnerability write-ups posted on the Internet. Respond to management with a
recommendation to wait until the news has been independently verified by software vendors
providing the web application software.
C. Notify all customers about the threat to their hosted data. Bring the web servers down into
"maintenance mode" until the vulnerability can be reliably mitigated through a vendor patch.
D. Hire an independent security consulting agency to perform a penetration test of the web servers.
Advise management of any 'high' or 'critical' penetration test findings and put forward
recommendations for mitigation.
Answer: A

RC0-C02 教本   
Explanation:
The first thing you should do is verify the reliability of the claims. From there you can assess the
likelihood of the vulnerability affecting your systems. If it is determined that your systems are likely
to be affected by the exploit, you need to determine what impact an attack will have on your hosted
data. Now that you know what the impact will be, you can test the exploit by using the proof-of
concept code. That should help you determine your options for dealing with the threat (remediation)
.
Incorrect Answers:
B: While penetration testing your system is a good idea, it is unnecessary to hire an independent
security consulting agency to perform a penetration test of the web servers. You know what the
vulnerability is so you can test it yourself with the proof-of-concept code.
C: Security response should be proactive. Waiting for the threat to be verified by the software vendor
will leave the company vulnerable if the vulnerability is real.
D: Bringing down the web servers would prevent the vulnerability but would also render the system
useless. Furthermore, customers would expect a certain level of service and may even have a service
level agreement in place with guarantees of uptime.
References:
Gregg, Michael, and Billy Haines, CASP CompTIA Advanced Security Practitioner Study Guide, John
Wiley & Sons, Indianapolis, 2012, pp. 375-376

NO.2 An administrator is tasked with securing several website domains on a web server. The
administrator elects to secure www.example.com, mail.example.org, archive.example.com, and
www.example.org with the same certificate. Which of the following would allow the administrator to
secure those domains with a single issued certificate?
A. Intermediate Root Certificate
B. Subject Alternative Names Certificate
C. Wildcard Certificate
D. EV x509 Certificate
Answer: B
Explanation:
Subject Alternative Names let you protect multiple host names with a single SSL certificate. Subject
Alternative Names allow you to specify a list of host names to be protected by a single SSL certificate.
When you order the certificate, you will specify one fully qualified domain name in the common
name field.
You can then add other names in the Subject Alternative Names field.
Incorrect Answers:
A: An Intermediate Root Certificate is used to trust an intermediate CA (Certification Authority). The
Intermediate root CA can issue certificates but the Intermediate Root Certificate itself cannot be used
to secure multiple domains on a web server.
B: A wildcard certificate can be used to secure multiple domain names within the same higher level
domain. For example: a wildcard certificate "* .example.com" can secure an unlimited number of
domains that end in 'example.com' such as domainl.example.com, domain2.example.com etc. A
wildcard certificate cannot be used to secure the domains listed in this question.
C: The certificate used to secure the domains will be an x509 certificate but it will not be a standard
EV certificate. EV stands for extended validation. With a non-EV certificate, the issuing CA just
ensures that you own the domains that you want to secure. With an EV certificate, further checks are
carried out such as checks on your company. EV certificates take longer to issue due to the extra
checks but the EV certificate provides extra guarantees to your customers that you are who you say
you are. However, a standard EV certificate only secures a single domain.

NO.3 A medical device manufacturer has decided to work with another international organization to
develop the software for a new robotic surgical platform to be introduced into hospitals within the
next 12 months. In order to ensure a competitor does not become aware, management at the
medical device manufacturer has decided to keep it secret until formal contracts are signed. Which of
the following documents is MOST likely to contain a description of the initial terms and arrangement
and is not legally enforceable?
A. SOA
B. OLA
C. BPA
D. SLA
E. MOU
Answer: E

RC0-C02 指導   
Explanation:
A memorandum of understanding (MOU) documents conditions and applied terms for outsourcing
partner organizations that must share data and information resources. It must be signed by a re
presentative from each organization that has the legal authority to sign and are typically secured, as
they are considered confidential.
Incorrect Answers:
A: An operating level agreement (O LA) defines the responsibilities of each partner's internal support
group and what group and resources are used to meet the specified goal. It is used in conjunction
with service level agreements (SLAs).
B: A business partnership security agreement (BPA) is a legally binding document that is designed to
provide safeguards and compel certain actions among business partners in relation to specific
security-related activities.
C: A service level agreement (SLA) guarantees the level of service the partner is agreeing to provide. It
specifies the uptime, response time, and maximum outage time that the partner is agreeing to.
D: Service-orientated architecture (SOA) is a web service that has an abstract architectural style,
binding together disjointed pieces of software.
References:
Gregg, Michael, and Billy Haines, CASP CompTIA Advanced Security Practitioner Study Guide, John
Wiley & Sons, Indianapolis, 2012, pp. 70, 238

NO.4 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. Dynamic disk pools
B. vSAN
C. LUN masking
D. Deduplication
E. Snapshots
F. Multipath
Answer: A,F

RC0-C02 講座   
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

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