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Q151. A security administrator has been tasked to ensure access to all network equipment is controlled by a central server such as TACACS+. This type of implementation supports which of the following risk mitigation strategies?
A. User rights and permissions review
B. Change management
C. Data loss prevention
D. Implement procedures to prevent data theft
Answer: A
Explanation:
Terminal Access Controller Access-Control System (TACACS, and variations like XTACACS and TACACS+) is a client/server-oriented environment, and it operates in a manner similar to RADIUS. Furthermore TACACS+ allows for credential to be accepted from multiple methods. Thus you can perform user rights and permission reviews with TACACS+.
Q152. A system security analyst using an enterprise monitoring tool notices an unknown internal host exfiltrating files to several foreign IP addresses. Which of the following would be an appropriate mitigation technique?
A. Disabling unnecessary accounts
B. Rogue machine detection
C. Encrypting sensitive files
D. Implementing antivirus
Answer: B
Explanation:
Rogue machine detection is the process of detecting devices on the network that should not be there. If a user brings in a laptop and plugs it into the network, the laptop is a “rogue machine”. The laptop could cause problems on the network. Any device on the network that should not be there is classed as rogue.
Q153. Which of the following was launched against a company based on the following IDS log?
122.41.15.252 - - [21/May/2012:00:17:20 +1200] "GET
/index.php?username=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A
AAA HTTP/1.1" 200 2731 "http://www.company.com/cgibin/
forum/commentary.pl/noframes/read/209" "Mozilla/4.0 (compatible;
MSIE 6.0; Windows NT 5.1; Hotbar 4.4.7.0)"
A. SQL injection
B. Buffer overflow attack
C. XSS attack
D. Online password crack
Answer: B
Explanation:
The username should be just a username; instead we can see it’s a long line of text with an HTTP command in it. This is an example of a buffer overflow attack. A buffer overflow occurs when a program or process tries to store more data in a buffer (temporary data storage area) than it was intended to hold. Since buffers are created to contain a finite amount of data, the extra information - which has to go somewhere - can overflow into adjacent buffers, corrupting or overwriting the valid data held in them. Although it may occur accidentally through programming error, buffer overflow is an increasingly common type of security attack on data integrity. In buffer overflow attacks, the extra data may contain codes designed to trigger specific actions, in effect sending new instructions to the attacked computer that could, for example, damage the user's files, change data, or disclose confidential information. Buffer overflow attacks are said to have arisen because the C programming language supplied the framework, and poor programming practices supplied the vulnerability.
Q154. A large bank has moved back office operations offshore to another country with lower wage costs in an attempt to improve profit and productivity. Which of the following would be a customer concern if the offshore staff had direct access to their data?
A. Service level agreements
B. Interoperability agreements
C. Privacy considerations
D. Data ownership
Answer: C
Explanation:
Q155. A security administrator needs to determine which system a particular user is trying to login to at various times of the day. Which of the following log types would the administrator check?
A. Firewall
B. Application
C. IDS
D. Security
Answer: D
Explanation:
The security log records events such as valid and invalid logon attempts, as well as events related to resource use, such as the creating, opening, or deleting of files. For example, when logon auditing is enabled, an event is recorded in the security log each time a user attempts to log on to the computer. You must be logged on as Administrator or as a member of the Administrators group in order to turn on, use, and specify which events are recorded in the security log.
Q156. A security engineer, Joe, has been asked to create a secure connection between his mail server and the mail server of a business partner. Which of the following protocol would be MOST appropriate?
A. HTTPS
B. SSH
C. FTP
D. TLS
Answer: D
Explanation: Transport Layer Security (TLS) is a cryptographic protocol designed to provide communications security over a computer network. It uses X.509 certificates and hence asymmetric cryptography to authenticate the counterparty with whom it is communicating, and to exchange a symmetric key. The TLS protocol allows client-server applications to communicate across a network in a way designed to prevent eavesdropping and tampering.
Q157. Pete, an IT Administrator, needs to secure his server room. Which of the following mitigation methods would provide the MOST physical protection?
A. Sign in and sign out logs
B. Mantrap
C. Video surveillance
D. HVAC
Answer: B
Explanation:
Mantraps are designed to contain an unauthorized, potentially hostile person/individual physically until authorities arrive. Mantraps are typically manufactured with bulletproof glass, high-strength doors, and locks and to allow the minimal amount of individuals depending on its size. Some mantraps even include scales that will weigh the person. The doors are designed in such a way as to open only when the mantrap is occupied or empty and not in-between. This means that the backdoor must first close before the front door will open. Mantraps are in most cases also combined with guards. This is the most physical protection any one measure will provide.
Q158. The systems administrator notices that many employees are using passwords that can be easily guessed or are susceptible to brute force attacks. Which of the following would BEST mitigate this risk?
A. Enforce password rules requiring complexity.
B. Shorten the maximum life of account passwords.
C. Increase the minimum password length.
D. Enforce account lockout policies.
Answer: A
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 complexity, the more resistant it is to brute force attacks.
Q159. Which of the following is an important implementation consideration when deploying a wireless network that uses a shared password?
A. Authentication server
B. Server certificate
C. Key length
D. EAP method
Answer: C
Explanation:
Key length is the main issue of concern since the wireless network uses a shared password. With risks of shared passwords makes the length of the password a crucial factor to risk mitigation.
Q160. Which of the following BEST allows Pete, a security administrator, to determine the type, source, and flags of the packet traversing a network for troubleshooting purposes?
A. Switches
B. Protocol analyzers
C. Routers
D. Web security gateways
Answer: B
Explanation:
A Protocol Analyzer is a hardware device or more commonly a software program used to capture
network data communications sent between devices on a network. By capturing and analyzing the
packets, Pete will be able to determine the type, source, and flags of the packets traversing a
network for troubleshooting purposes.
Well known software protocol analyzers include Message Analyzer (formerly Network Monitor)
from Microsoft and Wireshark (formerly Ethereal).