CompTIA SY0-401 Fragen Antworten

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%
NO.1 TION NO: 134
Which of the following ports is used for SSH, by default?
A. 23
B. 32
C. 12
D. 22
Answer: D

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Explanation:
Secure Shell (SSH) is a cryptographic network protocol for securing data communication. It
establishes a secure channel over an insecure network in a client-server architecture, connecting an
SSH client application with an SSH server. Common applications include remote command-line login,
remote command execution, but any network service can be secured with SSH. SSH uses port 22.

NO.2 Pete, the compliance manager, wants to meet regulations. Pete would like certain ports
blocked only on all computers that do credit card transactions. Which of the following should Pete
implement to BEST achieve this goal?
A. A host-based intrusion prevention system
B. A host-based firewall
C. Antivirus update system
D. A network-based intrusion detection system
Answer: B

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Explanation:
A host-based firewall is installed on a client system and is used to protect the client system from the
activities of the user as well as from communication from the network or Internet.

NO.3 Which of the following should Joe, a security manager, implement to reduce the risk of
employees working in collusion to embezzle funds from his company?
A. Privacy Policy
B. Least Privilege
C. Acceptable Use
D. Mandatory Vacations
Answer: D

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Explanation:
When one person fills in for another, such as for mandatory vacations, it provides an opportunity to
see what the person is doing and potentially uncover any fraud.

NO.4 After a recent internal audit, the security administrator was tasked to ensure that all
credentials must be changed within 90 days, cannot be repeated, and cannot contain any dictionary
words or patterns. All credentials will remain enabled regardless of the number of attempts made.
Which of the following types of user account options were enforced? (Select TWO).
A. Recovery
B. User assigned privileges
C. Lockout
D. Disablement
E. Group based privileges
F. Password expiration
G. Password complexity
Answer: F,G

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Explanation:
Password complexity often requires the use of a minimum of three out of four standard character
types for a password. The more characters in a password that includes some character type
complexity, the more resistant it is to password-cracking techniques. In most cases, passwords are
set to expire every 90 days.

NO.5 A security technician wishes to gather and analyze all Web traffic during a particular time
period.
Which of the following represents the BEST approach to gathering the required data?
A. Configure a VPN concentrator to log all traffic destined for ports 80 and 443.
B. Configure a proxy server to log all traffic destined for ports 80 and 443.
C. Configure a switch to log all traffic destined for ports 80 and 443.
D. Configure a NIDS to log all traffic destined for ports 80 and 443.
Answer: B

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Explanation:
A proxy server is in essence a device that acts on behalf of others and in security terms all internal
user interaction with the Internet should be controlled through a proxy server. This makes a proxy
server the best tool to gather the required data.

NO.6 Which of the following IP addresses would be hosts on the same subnet given the subnet mask
255.255.255.224? (Select TWO).
A. 10.4.4.125
B. 10.4.4.158
C. 10.4.4.165
D. 10.4.4.189
E. 10.4.4.199
Answer: C,D

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Explanation:
With the given subnet mask, a maximum number of 30 hosts between IP addresses 10.4.4.161 and
10.4.4.190 are allowed. Therefore, option C and D would be hosts on the same subnet, and the other
options would not.
References: http://www.subnetonline.com/pages/subnet-calculators/ip-subnet-calculator.php

NO.7 Pete, a security auditor, has detected clear text passwords between the RADIUS server and the
authenticator. Which of the following is configured in the RADIUS server and what technologies
should the authentication protocol be changed to?
A. PAP, MSCHAPv2
B. CHAP, PAP
C. MSCHAPv2, NTLMv2
D. NTLM, NTLMv2
Answer: A

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Explanation:
PAP transmits the username and password to the authentication server in plain text. MSCHAPv2 is
utilized as an authentication option for RADIUS servers that are used for Wi-Fi security using the
WPA-Enterprise protocol.

NO.8 RADIUS provides which of the following?
A. Authentication, Authorization, Availability
B. Authentication, Authorization, Auditing
C. Authentication, Accounting, Auditing
D. Authentication, Authorization, Accounting
Answer: D

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Explanation:
The Remote Authentication Dial In User Service (RADIUS) networking protocol offers centralized
Authentication, Authorization, and Accounting (AAA) management for users who make use of a
network service. It is for this reason that A, B, and C: are incorrect.
References: http://en.wikipedia.org/wiki/RADIUS

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