CASP Practice Exam 1 Questions with Verified
Correct Answers
Several of your organization's users have requested permission to install certificates
from a third party. Company policy states that before users can install these certificates,
you must verify that the certificates are still valid. You need to check for revocation.
What could you check to verify this information? (Choose all that apply.)
A. CRL
B. OCSP
C. DNSSEC
D. DRM
Answer: A, B
Explanation: You can use either a certificate revocation list (CRL) or Online Certificate
Status Protocol (OCSP) to check for certificate revocation, depending on which type of PKI
is deployed.
Your company has an intrusion detection system (IDS) and firewall deployed on the
perimeter of the network to detect attacks against internal resources. Yesterday, the
IDS alerted you that SSL sessions are under attack, using an older exploit against
SSLv2. Your organization's web server must use encryption for all financial
transactions. You need to prevent such an attack from being successful in the future.
,What should you do?
A. Block SSLv2 on the firewall.
B. Block SSLv2 on the web server.
C. Disable SSLv2 and enable SSLv3 on the web server.
D. Update the web server with the latest patches and updates.
Answer: C
Explanation: You should disable SSLv2 and enable SSLv3 on the web server. This will
prevent the use of SSLv2, which is the problem.
The research department for your company needs to carry out a web conference with a
third party. The manager of the research department has requested that you ensure
that the web conference is encrypted because of the sensitive nature of the topic that will
be discussed. Which of the following should you deploy?
A. SSL
B. SET
C. IPsec
D. RC4
,Answer: D
Explanation: RC4 is a stream-based cipher and could be used to encrypt web conference
traffic.
Your company has recently decided to merge with another company. Each company
has its own Internet PKI that deploys certificates to users within that network. You
have been asked to deploy a solution that allows each company to trust the other's
certificates. What should you do?
A. Issue a policy certificate accepting both trust paths.
B. Deploy a new PKI for all users and import the current user certificates to the new
PKI.
C. Use a cross-certification certificate.
D. Add the root certificate to both of the root certification authorities (CAs).
Answer: C
Explanation: You should use a cross-certification certificate to ensure that each company
trusts the other company's certificates.
Your company has a single, centralized web-based retail sales system. Orders come in
12 hours per day, 364 days per year. Sales average $500,000 per day. Attacks against
the retail sales system occur on a daily basis.
, For the retail sales system, there is a 1% chance of a hacker bringing the system down.
The mean time to restore the system is 6 hours. What is the ALE for this system?
A. $912,500
B. $250,000
C. $500,000
D. $910,000
Answer: D
Explanation: The annualized loss expectancy (ALE) for the system is $910,000. The asset
value (AV) is $500,000. The exposure factor (EF) is 0.5 (6 hours/12 hours).
Single loss expectancy (SLE) = AV × EF = $500,000 × 0.5 = $250,000
Annualized rate of occurrence (ARO) = 0.01 × 364 = 3.64
Annualized loss expectancy (ALE) = SLE × ARO = $250,000 × 3.64 = $910,000
Your organization has recently implemented several new security policies in response to
a recent risk analysis. One of the new policies states that controls must be configured to
protect files from unauthorized or accidental deletion. Which aspect of security does
this new policy address?
Correct Answers
Several of your organization's users have requested permission to install certificates
from a third party. Company policy states that before users can install these certificates,
you must verify that the certificates are still valid. You need to check for revocation.
What could you check to verify this information? (Choose all that apply.)
A. CRL
B. OCSP
C. DNSSEC
D. DRM
Answer: A, B
Explanation: You can use either a certificate revocation list (CRL) or Online Certificate
Status Protocol (OCSP) to check for certificate revocation, depending on which type of PKI
is deployed.
Your company has an intrusion detection system (IDS) and firewall deployed on the
perimeter of the network to detect attacks against internal resources. Yesterday, the
IDS alerted you that SSL sessions are under attack, using an older exploit against
SSLv2. Your organization's web server must use encryption for all financial
transactions. You need to prevent such an attack from being successful in the future.
,What should you do?
A. Block SSLv2 on the firewall.
B. Block SSLv2 on the web server.
C. Disable SSLv2 and enable SSLv3 on the web server.
D. Update the web server with the latest patches and updates.
Answer: C
Explanation: You should disable SSLv2 and enable SSLv3 on the web server. This will
prevent the use of SSLv2, which is the problem.
The research department for your company needs to carry out a web conference with a
third party. The manager of the research department has requested that you ensure
that the web conference is encrypted because of the sensitive nature of the topic that will
be discussed. Which of the following should you deploy?
A. SSL
B. SET
C. IPsec
D. RC4
,Answer: D
Explanation: RC4 is a stream-based cipher and could be used to encrypt web conference
traffic.
Your company has recently decided to merge with another company. Each company
has its own Internet PKI that deploys certificates to users within that network. You
have been asked to deploy a solution that allows each company to trust the other's
certificates. What should you do?
A. Issue a policy certificate accepting both trust paths.
B. Deploy a new PKI for all users and import the current user certificates to the new
PKI.
C. Use a cross-certification certificate.
D. Add the root certificate to both of the root certification authorities (CAs).
Answer: C
Explanation: You should use a cross-certification certificate to ensure that each company
trusts the other company's certificates.
Your company has a single, centralized web-based retail sales system. Orders come in
12 hours per day, 364 days per year. Sales average $500,000 per day. Attacks against
the retail sales system occur on a daily basis.
, For the retail sales system, there is a 1% chance of a hacker bringing the system down.
The mean time to restore the system is 6 hours. What is the ALE for this system?
A. $912,500
B. $250,000
C. $500,000
D. $910,000
Answer: D
Explanation: The annualized loss expectancy (ALE) for the system is $910,000. The asset
value (AV) is $500,000. The exposure factor (EF) is 0.5 (6 hours/12 hours).
Single loss expectancy (SLE) = AV × EF = $500,000 × 0.5 = $250,000
Annualized rate of occurrence (ARO) = 0.01 × 364 = 3.64
Annualized loss expectancy (ALE) = SLE × ARO = $250,000 × 3.64 = $910,000
Your organization has recently implemented several new security policies in response to
a recent risk analysis. One of the new policies states that controls must be configured to
protect files from unauthorized or accidental deletion. Which aspect of security does
this new policy address?
