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Exam Code: SY0-401Exam Name: CompTIA Security+ Certification
One year free update, No help, Full refund!
SY0-401 Exam Dumps Total Q&A: 1750 Questions and Answers
Last Update: 03-06,2016
SY0-401 Exam PDF Detail: SY0-401 Exam Dumps
NO.1 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. RAID
B. Load Balancing
C. Clustering
D. Tape Backup
Answer: C
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NO.2 A server is configured to communicate on both VLAN 1 and VLAN 12. VLAN 1 communication
works fine, but VLAN 12 does not. Which of the following MUST happen before the server can
communicate on VLAN 12?
A. The server's network switch port must be enabled for 802.11x on VLAN 12.
B. The server's network switch port must be 802.1q tagged for VLAN 12.
C. The server's network switch port must be 802.1q untagged for VLAN 12.
D. The server's network switch port must use VLAN Q-in-Q for VLAN 12.
Answer: B
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Explanation:
802.1q is a standard that defines a system of VLAN tagging for Ethernet frames. The purpose of a
tagged port is to pass traffic for multiple VLAN's.
Incorrect Options:
A: 802.11x provides an authentication mechanism to devices wishing to attach to a LAN or WLAN.
B: VLAN Q-in-Q allows multiple VLAN tags to be inserted into a single frame.
C: The purpose an untagged port is to accept traffic for a single VLAN only.
Reference:
https://en.wikipedia.org/wiki/IEEE_802.1Q
https://documentation.meraki.com/zGeneral_Administration/Tools_and_Troubleshooting/Fundame
ntals_of_802.1Q_VLAN_Tagging
https://en.wikipedia.org/wiki/IEEE_802.1X
https://en.wikipedia.org/wiki/IEEE_802.1ad
NO.3 Which of the following BEST describes a SQL Injection attack?
A. The attacker attempts to have the receiving server pass information to a back-end database from
which it can compromise the stored information.
B. The attacker attempts to have the receiving server run a payload using programming commonly
found on web servers.
C. The attacker overwhelms a system or application, causing it to crash and bring the server down to
cause an outage.
D. 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.
Answer: A
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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 A user, Ann, has been issued a smart card and is having problems opening old encrypted email.
Ann published her certificates to the local windows store and to the global address list. Which of the
following would still need to be performed?
A. Setup the email security with her new certificates
B. Verify the correct email address is associated with her certificate
C. Reinstall her previous public certificate
D. Recover her old private certificate
Answer: A
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NO.5 Digital certificates can be used to ensure which of the following? (Select TWO).
A. Availability
B. Verification
C. Non-repudiation
D. Confidentiality
E. Authorization
Answer: C,D
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Explanation:
Digital Signatures is used to validate the integrity of the message and the sender. Digital certificates
refer to cryptography which is mainly concerned with Confidentiality, Integrity, Authentication,
Nonrepudiation and Access Control. Nonrepudiation prevents one party from denying actions they
carried out.
NO.6 While setting up a secure wireless corporate network, which of the following should Pete, an
administrator, avoid implementing?
A. WEP
B. EAP-TLS
C. PEAP
D. WPA
Answer: A
(The CompTIA Security+ Certification is aimed at an IT security professional who has:
> A minimum of 2 years experience in IT administration with a focus on security
> Day to day technical information security experience
> Broad knowledge of security concerns and implementation including the topics in the domain list below
SY0-401 Domain | % of Examination
1.0 Network Security 20%
2.0 Compliance and Operational Security 18%
3.0 Threats and Vulnerabilities 20%
4.0 Application, Data and Host Security 15%
5.0 Access Control and Identity Management 15%
6.0 Cryptography 12% )
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Explanation:
WEP is one of the more vulnerable security protocols. The only time to use WEP is when you must
have compatibility with older devices that do not support new encryption.
NO.7 Recently clients are stating they can no longer access a secure banking site's webpage. In
reviewing the clients' web browser settings, the certificate chain is showing the following:
Certificate Chain:
X Digi Cert Digi Cert High assurance C3
* banksite.com
Certificate Store:
Digi Cert - Others Certificate Store
Digi Cert High assurance C3 - Others Certificate Store
Based on the information provided, which of the following is the problem when connecting to the
website?
A. The certificate signature request was invalid
B. The clients do not trust the certificate authority
C. Key escrow is failing for the certificate authority
D. The certificate authority has revoked the certificate
Answer: D
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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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(Sosa is not telling parents to throw out electronic toys. But she said parents should look at their infants' play with such toys as entertainment, not a learning experience.
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She added that play should be balanced, including time for just "make believe" activities, as well as traditional and electronic toys.)