CompTIA Security+ Exam Study Guide with Complete Solutions

CompTIA Security+ Exam Study Guide

with Complete Solutions

D >>>Which if the following would a security specialist be able to determine upon

examination of a server's certificate?

A. CA public key

B. Server private key

C. CSR

D. OID

B >>>A security analyst is diagnosing an incident in which a system was compromised

from an external IP address. The socket identified on the firewall was traced to

207.46.130.0:6666. Which of the following should the security analyst do to determine if

the compromised system still has an active connection?

A. tracert

B. netstat

C. ping

D. nslookup

B >>>Multiple organizations operating in the same vertical wants to provide seamless

wireless access for their employees as they visit the other organizations. Which of the

following should be implemented if all the organizations use the native 802.1x client on

their mobile devices?

A. Shibboleth

B. RADIUS federation

C. SML

D. OAuth

E. OpenID connect

C >>>Which of the following BEST describes an important security advantage yielded

by implementing vendor diversity?

A. Sustainability

B. Homogeneity

C. Resiliency

D. Configurability

A >>>In a corporation where compute utilization spikes several times a year, the Chief

Information Officer has requested a cost-effective architecture to handle the variable

capacity demand. Which of the following characteristics BEST describes what the CIO

has requested?

A. Elasticity

B. Scalability

C. High availability

D. Redundancy

B >>>A security engineer is configuring a system that requires the X.509 certificate

information to be pasted into a form field in Base64 encoded format to import it into the

system. Which of the following certificate formats should the engineer use to obtain the

information in the required format?

A. PFX

B. PEM

C. DER

D. CER

A >>>Which of the following attacks specifically impact data availability?

A. DDoS

B. Trojan

C. MITM

D. Rootkit

BD >>>A security analyst is hardening a server with the directory services role installed.

The analyst must ensure LDAP traffic cannot be monitored or sniffed and maintains

compatibility with LDAP clients. Which of the following should the analyst implement to

meet these requirements? (Select two)

A. Generate an X.509-compliant certificate that is signed by a trusted CA

B. Install and configure an SSH tunnel on the LDAP server

C. Ensure port 389 is open between the clients and the servers using the

communication

D. Ensure port 636 is open between the clients and the servers using the

communications

E. Remote the LDAP directory service role from the sercer

A >>>Which of the following threat actors is MOST likely to steal a company's

proprietary information to gain a market edge and reduce time to market?

A. Competitior

B. Hacktivist

C. Insider

D. Organized crime

A >>>A penetration tester is crawling a target website that is available to the public.

Which of the following represents the actions the penetration tester is performing?

A. URL hijacking

B. Reconnaissance

C. White box testing

D. Escalation of privilege

BE >>>Which of the following characteristics differentiate a rainbow table attack from a

brute force attack? (Select two)

A. Rainbow table attacks greatly reduce compute cycles at attack time

B. Rainbow tables must include precomputed hashes

C. Rainbow table attacks do not require access to hashed passwords

D. Rainbow table attacks must be performed on the network

E. Rainbow table attacks bypass maximum failed login restrictions

C >>>Which of the following best describes routine in which semicolons, dashes,

quotes, and commas are removed from a string?

A. Error handling to protect against program exploitation

B. Exception handling to protect against XSRF attacks

C. Input validation to protect against SQL injection

D. Padding to protect against string buffer overflows

C >>>A security analyst wishes to increase the security of an FTP server. Currently, all

traffic to the FTP server is unencrypted. Users connecting to the FTP server use a

variety of modern FTP client software. The security analyst wants to keep the same port

and protocol, while also still allowing unencrypted connections. Which of the following

would BEST accomplish these goals?

A. Require the SFTP protocol to connect to the file server

B. Use implicit TLS on the FTP server

C. Use explicit FTPS for connections

D. Use SSH tunneling to encrypt the FTP traffic

A >>>Which of the following explains why vendors publish MD5 values when the

provide software patches for their customers to download over the internet?

A. The recipient can verify integrity of the software patch

B. The recipient can verify the authenticity of the site used to download the patch

C. The recipient can request future updates to the software using the published MD5

value

D. The recipient can successfully activate the new software patch

D >>>Refer to the following code:

public class rainbow {

public static void main (String [] args) {

object blue = null;

blue.hashcode (); }

}

Which of the following vulnerabilities would occur if this is executed?

A. Page exception

B. Pointer deference

C. NullPointerException

D. Missing null check

C >>>Multiple employees receive an email with a malicious attachment that begins to

encrypt their hard drives and mapped shares on their devices when it is opened. The

network and security teams perform the following actions:

Next, the teams what to re-enable the network shares. Which of the following BEST

describes this phase of the incident response process?

A. Eradication

B. Containment

C. Recovery

D. Lessons learned

A >>>An organization has determined it can tolerate a maximum of three hours of

downtime. Which of the following has been specified?

A. RTO

B. RPO

C. MTBF

D. MTTR

D >>>Which of the following types of keys is found in a key escrow?

A. Public

B. Private

C. Shared

D. Session

BC >>>A security analyst is reviewing the following output from an IPS:

[**] [1:2467:7] EXPLOIT IGMP IGAP message overflow attempt [**]

[Classification: Attempted Administrator Privilege Gain] [Priority: 1]

07/30-19:45:02.238185 250.19.18.71 -> 250.19.18.22

IGMP TTL:255 TOS: 0x0 ID: 9742 IpLen:20 DgmLen: 502 MF

Frag offset: 0x1FFF Frag Size: 0x01E2

[Xref => http://cve.mitre.org/cgi-bin/cvename.cgi?name=2004-0367]