312-38 Online Practice Questions and Answers

Correct Answer: B

Correct Answer: B

Updating the anti-virus software regularly is the best way of protecting important data against virus attack.

Correct Answer: ACD

The resplendent registrar is a tool that offers a complete and safe solution to administrators and power users for maintaining the registry. It can be used for maintaining the registry of desktops and remote computers on the network. It offers a solution for backing up and restoring registries, fast background search and replace, adding descriptions to the registry keys, etc. This program is very attractive and easy to use, as it comes in an explorer-style interface. It can be used for Windows 2003/XP/2K/NT/ME/9x. Reg.exe is a command-line utility that is used to edit the Windows registry. It has the ability to import, export, back up, and restore keys, as well as to compare, modify, and delete keys. It can perform almost all tasks that can be done using the Windows-based Regedit.exe tool. Registry Editor (REGEDIT) is a registry editing utility that can be used to look at information in the registry. REGEDIT.EXE enables users to search for strings, values, keys, and subkeys and is useful to find a specific value or string. Users can also use REGEDIT.EXE to add, delete, or modify registry entries. Answer option B is incorrect. EventCombMT is a multithreaded tool that is used to search the event logs of several different computers for specific events, all from one central location. It is a little-known Microsoft tool to run searches for event IDs or text strings against Windows event logs for systems, applications, and security, as well as File Replication Service (FRS), domain name system (DNS), and Active Directory (AD) logs where applicable. The MT stands for multi-threaded. The program is part of the Account Lockout and Management Tools program package for Windows 2000, 2003, and XP.

Correct Answer: D

The LogLevel directive is used in server Error log of the Apache Web server log. This directive is used to control the types of errors that are sent to the error log by constraining the severity level. Eight different levels are present in the LogLevel directive, which are shown below in order of their descending significance:

Note: When a certain level is specified, the messages from all other levels of higher significance will also be reported. For example, when LogLevel crit is specified, then messages with log levels of alert and emerg will also be reported.

Answer option B is incorrect. The ErrorLog directive is used to set the name and location of the file to which the server will log any errors it encounters. If the file-path does not begin with a slash sign (/), it is assumed to be relative to the

ServerRoot. If the file-path begins with a pipe sign (|), then it is assumed to be a command that handles the error log.

Answer option A is incorrect. The CustomLog directive is used to log requests to the server. The format of the log is specified and the logging can be made conditional on request characteristics with the help of environment variables.

Environment variables can be adjusted on a per-request basis with the help of the mod_setenvif or mod_rewrite module.

Answer option C is incorrect. The LogFormat directive can exist in one of the two forms. In the first form, only one argument is specified; and in the second form explicit format with a nickname is associated. This directive specifies the log

format that is used by logs specified in subsequent TransferLog directives.

Correct Answer: B

Ettercap is a Unix and Windows tool for computer network protocol analysis and security auditing. It is capable of intercepting traffic on a network segment, capturing passwords, and conducting active eavesdropping against a number of

common protocols. It is a free open source software. Ettercap supports active and passive dissection of many protocols (including ciphered ones) and provides many features for network and host analysis. Answer option C is incorrect.

BackTrack is a Linux distribution distributed as a Live CD, which is used for penetration testing. It allows users to include customizable scripts, additional tools and configurable kernels in personalized distributions. It contains various tools,

such as Metasploit integration, RFMON injection capable wireless drivers, kismet, autoscan-network (network discovering and managing application), nmap, ettercap, wireshark (formerly known as Ethereal).

Answer option A is incorrect. AirSnort is a Linux-based WLAN WEP cracking tool that recovers encryption keys. AirSnort operates by passively monitoring transmissions. It uses Ciphertext Only Attack and captures approximately 5 to 10

million packets to decrypt the WEP keys. Answer option D is incorrect. Aircrack is the fastest WEP/WPA cracking tool used for 802.11a/b/g WEP and WPA cracking.

Correct Answer: A

The Point-to-Point Tunneling Protocol (PPTP) is a method for implementing virtual private networks. PPTP uses a control channel over TCP and a GRE tunnel operating to encapsulate PPP packets. The PPTP specification does not describe encryption or authentication features and relies on the PPP protocol being tunneled to implement security functionality. However, the most common PPTP implementation, shipping with the Microsoft Windows product families, implements various levels of authentication and encryption natively as standard features of the Windows PPTP stack. The intended use of this protocol is to provide similar levels of security and remote access as typical VPN products. Answer option B is incorrect. Encapsulating Security Payload (ESP) is an IPSec protocol that provides confidentiality, in addition to authentication, integrity, and anti-replay. ESP can be used alone or in combination with Authentication Header (AH). It can also be nested with the Layer Two Tunneling Protocol (L2TP). ESP does not sign the entire packet unless it is being tunneled. Usually, only the data payload is protected, not the IP header. Answer option D is incorrect. Secure Socket Tunneling Protocol (SSTP) is a form of VPN tunnel that provides a mechanism to transport PPP or L2TP traffic through an SSL 3.0 channel. SSL provides transport-level security with key- negotiation, encryption, and traffic integrity checking. The use of SSL over TCP port 443 allows SSTP to pass through virtually all firewalls and proxy servers. SSTP servers must be authenticated during the SSL phase. SSTP clients can optionally be authenticated during the SSL phase, and must be authenticated in the PPP phase. The use of PPP allows support for common authentication methods, such as EAP-TLS and MS-CHAP. SSTP is available in Windows Server 2008, Windows Vista SP1, and later operating systems. It is fully integrated with the RRAS architecture in these operating systems, allowing its use with Winlogon or smart card authentication, remote access policies, and the Windows VPN client. Answer option C is incorrect. LWAPP (Lightweight Access Point Protocol) is a protocol used to control multiple Wi-Fi wireless access points at once. This can reduce the amount of time spent on configuring, monitoring, or troubleshooting a large network. This also allows network administrators to closely analyze the network.

Correct Answer: D

Correct Answer: C

Correct Answer: A

Correct Answer: B