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Q1. A network administrator is looking for a way to automatically update company browsers so they import a list of root certificates from an online source. This online source will then be responsible for tracking which certificates are to be trusted or not trusted. Which of the following BEST describes the service that should be implemented to meet these requirements?
A. Trust model
B. Key escrow
C. OCSP
D. PKI
Answer: A
Explanation:
In this scenario we can put a CA in the local network and use an online CA as root CA in a hierarchical trust model. A trust Model is collection of rules that informs application on how to decide the legitimacy of a Digital Certificate. In a hierarchical trust model, also known as a tree, a root CA at the top provides all of the information. The intermediate CAs are next in the hierarchy, and they trust only information provided by the root CA. The root CA also trusts intermediate CAs that are in their level in the hierarchy and none that aren’t. This arrangement allows a high level of control at all levels of the hierarchical tree.
Q2. Which of the following is a notification that an unusual condition exists and should be investigated?
A. Alert
B. Trend
C. Alarm
D. Trap
Answer: A
Explanation:
We need to look carefully at the wording of the question to determine the answer. This question is asking about an “unusual condition” that should be investigated. There are different levels of alerts from Critical to Warning to Information only. An Alarm would be triggered by a serious definite problem that needs resolving urgently. An “unusual condition” probably wouldn’t trigger an alarm; it is more likely to trigger an Alert.
Q3. Which of the following file systems is from Microsoft and was included with their earliest operating systems?
A. NTFS
B. UFS
C. MTFS
D. FAT
Answer: D
Explanation:
File Allocation Table (FAT) is a file system created by Microsoft and used for its earliest DOS operating systems.
Q4. End-user awareness training for handling sensitive personally identifiable information would include secure storage and transmission of customer:
A. Date of birth.
B. First and last name.
C. Phone number.
D. Employer name.
Answer: A
Explanation:
Personally identifiable information (PII) is a catchall for any data that can be used to uniquely identify an individual. This data can be anything from the person’s name to a fingerprint (think biometrics), credit card number, or patient record. Date of birth is personally identifiable information.
Q5. Which of the following should the security administrator implement to limit web traffic based on country of origin? (Select THREE).
A. Spam filter
B. Load balancer
C. Antivirus
D. Proxies
E. Firewall
F. NIDS
G. URL filtering
Answer: D,E,G
Explanation:
A proxy server is a server that acts as an intermediary for requests from clients seeking resources
from other servers.
Firewalls manage traffic using a rule or a set of rules.
A URL is a reference to a resource that specifies the location of the resource. A URL filter is used
to block access to a site based on all or part of a URL.
Q6. Which of the following is the default port for TFTP?
A. 20
B. 69
C. 21
D. 68
Answer: B
Explanation:
TFTP makes use of UDP port 69.
Q7. Various network outages have occurred recently due to unapproved changes to network and security devices. All changes were made using various system credentials. The security analyst has been tasked to update the security policy. Which of the following risk mitigation strategies would also need to be implemented to reduce the number of network outages due to unauthorized changes?
A. User rights and permissions review
B. Configuration management
C. Incident management
D. Implement security controls on Layer 3 devices
Answer: A
Explanation:
Reviewing user rights and permissions can be used to determine that all groups, users, and other accounts have the appropriate privileges assigned according to the policies of the corporation and their job descriptions. Also reviewing user rights and permissions will afford the security analyst the opportunity to put the principle of least privilege in practice as well as update the security policy
Q8. An Information Systems Security Officer (ISSO) has been placed in charge of a classified peer-to-peer network that cannot connect to the Internet. The ISSO can update the antivirus definitions manually, but which of the following steps is MOST important?
A. A full scan must be run on the network after the DAT file is installed.
B. The signatures must have a hash value equal to what is displayed on the vendor site.
C. The definition file must be updated within seven days.
D. All users must be logged off of the network prior to the installation of the definition file.
Answer: B
Explanation:
A hash value can be used to uniquely identify secret information. This requires that the hash function is collision resistant, which means that it is very hard to find data that generate the same hash value and thus it means that in hashing two different inputs will not yield the same output. Thus the hash value must be equal to that displayed on the vendor site.
Q9. Joe, a network security engineer, has visibility to network traffic through network monitoring tools.
However, he’s concerned that a disgruntled employee may be targeting a server containing the company’s financial records. Which of the following security mechanism would be MOST appropriate to confirm Joe’s suspicion?
A. HIDS
B. HIPS
C. NIPS
D. NIDS
Answer: A
Explanation:
A host-based IDS (HIDS) is an intrusion detection system that runs as a service on a host computer system. It is used to monitor the machine logs, system events, and application activity for signs of intrusion. It is useful for detecting attacks that originate outside the organization as well as attacks by internal users logged on to the system.
Q10. Sara, a hacker, is completing a website form to request a free coupon. The site has a field that limits the request to 3 or fewer coupons. While submitting the form, Sara runs an application on her machine to intercept the HTTP POST command and change the field from 3 coupons to 30.
Which of the following was used to perform this attack?
A. SQL injection
B. XML injection
C. Packet sniffer
D. Proxy
Answer: B
Explanation:
When a web user takes advantage of a weakness with SQL by entering values that they should not, it is known as a SQL injection attack. Similarly, when the user enters values that query XML (known as XPath) with values that take advantage of exploits, it is known as an XML injection attack. XPath works in a similar manner to SQL, except that it does not have the same levels of access control, and taking advantage of weaknesses within can return entire documents. The best way to prevent XML injection attacks is to filter the user’s input and sanitize it to make certain that it does not cause XPath to return more data than it should.