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시험 번호/코드: SY0-401시험 이름: CompTIA Security+ Certification
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100% 환불보장약속 SY0-401자격증자료
PDF 및 소프트웨어, 연구와 실천
NO.1 Matt, a security consultant, has been tasked with increasing server fault tolerance and has been
given no budget to accomplish his task. Which of the following can Matt implement to ensure servers
will withstand hardware failure?
A. A cold site
B. A host standby
C. RAID
D. Hardware load balancing
Answer: C
SY0-401인증
Explanation:
Fault tolerance is the ability of a system to sustain operations in the event of a component failure.
Fault-tolerant systems can continue operation even though a critical component, such as a disk drive,
has failed. This capability involves overengineering systems by adding redundant components and
subsystems. RAID can achieve fault tolerance using software which can be done using the existing
hardware and software.
NO.2 Matt, a systems security engineer, is determining which credential-type authentication to use
within a planned 802.1x deployment. He is looking for a method that does not require a client
certificate, has a server side certificate, and uses TLS tunnels for encryption. Which credential type
authentication method BEST fits these requirements?
A. PEAP-MSCHAPv2
B. EAP-FAST
C. PEAP-CHAP
D. EAP-TLS
Answer: A
SY0-401자격시험
Explanation:
PEAP-MS-CHAP v2 is easier to deploy than EAP-TLS or PEAP-TLS because user authentication is
accomplished via password-base credentials (user name and password) rather than digital certificates
or smart cards. Only servers running Network Policy Server (NPS) or PEAP-MS-CHAP v2 are required
to have a certificate.
NO.3 Which of the following BEST describes a SQL Injection attack?
A. The attacker attempts to have the receiving server run a payload using programming commonly
found on web servers.
B. The attacker attempts to have the receiving server pass information to a back-end database from
which it can compromise the stored information.
C. The attacker overwhelms a system or application, causing it to crash, and then redirects the
memory address to read from a location holding the payload.
D. The attacker overwhelms a system or application, causing it to crash and bring the server down to
cause an outage.
Answer: B
SY0-401인증
Explanation:
SQL injection is a code injection technique, used to attack data-driven applications, in which
malicious SQL statements are inserted into an entry field for execution (e.g. to dump the database
contents to the attacker). SQL injection must exploit a security vulnerability in an application's
software, for example, when user input is either incorrectly filtered for string literal escape characters
embedded in SQL statements or user input is not strongly typed and unexpectedly executed. SQL
injection is mostly known as an attack vector for websites but can be used to attack any type of SQL
database.
NO.4 Which of the following technologies was developed to allow companies to use less-expensive
storage while still maintaining the speed and redundancy required in a business environment?
A. Tape Backup
B. RAID
C. Clustering
D. Load Balancing
Answer: C
NO.5 Ann, a security administrator at a call center, has been experiencing problems with users
intentionally installing unapproved and occasionally malicious software on their computers. Due to
the nature of their jobs, Ann cannot change their permissions. Which of the following would BEST
alleviate her concerns?
A. Create an approved application list and block anything not on it.
B. Maintain the baseline posture at the highest OS patch level.
C. Deploy a HIDS suite on the users' computers to prevent application installation.
D. Enable the pop-up blockers on the users' browsers to prevent malware.
Answer: A
SY0-401기출문제
Explanation:
You can use Software Restriction Policy or its successor AppLocker to prevent unauthorized
applications from running or being installed on computers.
Software Restriction Policies (SRP) is Group Policy-based feature that identifies software
programs running on computers in a domain, and controls the ability of those programs to run.
Software restriction policies are part of the Microsoft security and management strategy to assist
enterprises in increasing the reliability, integrity, and manageability of their computers.
You can use AppLocker as part of your overall security strategy for the following scenarios:
Help prevent malicious software (malware) and unsupported applications from affecting computers
in your environment.
Prevent users from installing and using unauthorized applications.
Implement application control policy to satisfy portions of your security policy or compliance
requirements in your organization.
NO.6 An administrator is configuring a new Linux web server where each user account is confined to
a cheroot jail. Which of the following describes this type of control?
A. Sandbox
B. Segmentation
C. SysV
D. Zone
Answer: A
SY0-401시험자료
NO.7 Which of the following is true about an email that was signed by User A and sent to User B?
A. User A signed with their own public key and User B verified with User A's private key.
B. User A signed with User B's public key and User B verified with their own private key.
C. User A signed with their own private key and User B verified with User A's public key.
D. User A signed with User B's private key and User B verified with their own public key.
Answer: C
SY0-401교재
Explanation:
The sender uses his private key, in this case User A's private key, to create a digital signature.
The message is, in effect, signed with the private key. The sender then sends the message to the
receiver. The receiver (User B) uses the public key attached to the message to validate the digital
signature. If the values match, the receiver knows the message is authentic.
The receiver uses a key provided by the sender-the public key-to decrypt the message.
NO.8 DRAG DROP
A forensic analyst is asked to respond to an ongoing network attack on a server. Place the items in
the list below in the correct order in which the forensic analyst should preserve them.
Answer:
Explanation:
When dealing with multiple issues, address them in order of volatility (OOV); always deal with the
most volatile first. Volatility can be thought of as the amount of time that you have to collect certain
data before a window of opportunity is gone. Naturally, in an investigation you want to collect
everything, but some data will exist longer than others, and you cannot possibly collect all of it
once. As an example, the OOV in an investigation may be RAM, hard drive data, CDs/DVDs, and
printouts.
Order of volatility: Capture system images as a snapshot of what exists, look at network traffic and
logs, capture any relevant video/screenshots/hashes, record time offset on the systems, talk to
witnesses, and track total man-hours and expenses associated with the investigation.
References:
Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex,
Indianapolis, 2014, p. 453
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