2014 Latest Pass4sure&Lead2pass GIAC GSNA Dumps

Vendor: GIAC
Exam Code: GSNA
Exam Name: GIAC Systems and Network Auditor

QUESTION 1
Sarah works as a Web Developer for XYZ CORP. She is creating a Web site for her company. Sarah wants greater control over the appearance and presentation of Web pages. She wants the ability to precisely specify the display attributes and the appearance of elements on the Web pages. How will she accomplish this?

A.    Use the Database Design wizard.
B.    Make two templates, one for the index page and the other for all other pages.
C.    Use Cascading Style Sheet (CSS).
D.    Make a template and use it to create each Web page.

Answer: C
Explanation:
Sarah should use the Cascading Style Sheet (CSS) while creating Web pages. This will give her greater control over the appearance and presentation of the Web pages and will also enable her to precisely specify the display attributes and the appearance of elements on the Web pages.

QUESTION 2
You work as a Network Administrator for XYZ CORP. The company has a Windows Server 2008 network environment. The network is configured as a Windows Active Directory-based single forest single domain network. You have installed a Windows Server 2008 computer. You have configured auditing on this server. The client computers of the company use the Windows XP Professional operating system. You want to audit each event that is related to a user managing an account in the user database on the computer where the auditing is configured. To accomplish the task, you have enabled the Audit account management option on the server. Which of the following events can be audited by enabling this audit option?

A.    Access to an Active Directory object
B.    Change of password for a user account
C.    Addition of a user account to a group
D.    Creation of a user account

Answer: BCD
Explanation:
Audit account management is one of the nine audit settings that can be configured on a Windows computer. This option is enabled to audit each event that is related to a user managing an account in the user database on the computer where the auditing is configured. These events include the following: Creating a user account Adding a user account to a group Renaming a user account Changing password for a user account This option is also used to audit the changes to the domain account of the domain controllers.

QUESTION 3
John works as a contract Ethical Hacker. He has recently got a project to do security checking for www.we-are-secure.com. He wants to find out the operating system of the we-are-secure server in the information gathering step. Which of the following commands will he use to accomplish the task? (Choose two)

A.    nc 208.100.2.25 23
B.    nmap -v -O www.we-are-secure.com
C.    nc -v -n 208.100.2.25 80
D.    nmap -v -O 208.100.2.25

Answer: BD
Explanation:
According to the scenario, John will use "nmap -v -O 208.100.2.25" to detect the operating system of the we-are-secure server. Here, -v is used for verbose and -O is used for TCP/IP fingerprinting to guess the remote operating system. John may also use the DNS name of we-are-secure instead of using the IP address of the we-are-secure server. So, he can also use the nmap command "nmap -v -O www.we-are-secure.com ". Answer: C is incorrect. "nc -v -n 208.100.2.25 80" is a Netcat command, which is used to banner grab for getting information about the

QUESTION 4
You check performance logs and note that there has been a recent dramatic increase in the amount of broadcast traffic. What is this most likely to be an indicator of?

A.    Misconfigured router
B.    DoS attack
C.    Syn flood
D.    Virus

Answer: B
Explanation:
There are several denial of service (DoS) attacks that specifically use broadcast traffic to flood a targeted computer. Seeing an unexplained spike in broadcast traffic could be an indicator of an attempted denial of service attack. Answer: D is incorrect. Viruses can cause an increase in network traffic, and it is possible for that to be broadcast traffic. However, a DoS attack is more likely than a virus to cause this particular problem. Answer: C is incorrect. A syn flood does not cause increased broadcast traffic. Answer: A is incorrect. A misconfigured router could possibly cause an increase in broadcast traffic. However, this a recent problem, the router is unlikely to be the issue.

QUESTION 5
You run the wc -c file1.txt command. If this command displays any error message, you want to store the error message in the error.txt file. Which of the following commands will you use to accomplish the task?

A.    wc -c file1.txt >>error.txt
B.    wc -c file1.txt 1>error.txt
C.    wc -c file1.txt 2>error.txt
D.    wc -c file1.txt >error.txt

Answer: C
Explanation:
According to the scenario, you will use the wc -c file1.txt 2>error.txt command to accomplish the task. The 2> operator is an error redirector, which, while running a command, redirects the error (if it exists) on the specified file. Answer: B, D are incorrect. The > or 1> redirector can be used to redirect the output of the wc -c file1.txt file to the error.txt file; however, you want to write the errors in the error.txt file, not the whole output. Answer: A is incorrect. The >> operator will redirect the output of the command in the same manner as the > or 1> operator. Although the >> operator will not overwrite the error.txt file, it will append the error.txt file.

QUESTION 6
John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based network. John is working as a root user on the Linux operating system. He wants to forward all the kernel messages to the remote host having IP address 192.168.0.1. Which of the following changes will he perform in the syslog.conf file to accomplish the task?

A.    kern.* @192.168.0.1
B.    !*.* @192.168.0.1
C.    !kern.* @192.168.0.1
D.    *.* @192.168.0.1

Answer: A
Explanation:
According to the scenario, John will make the following entry in the syslog.conf file to forward all the kernel messages to the remote host having IP address 192.168.0.1: kern.* @192.168.0.1 Answer: D is incorrect. This entry will forward all the messages to the remote host having IP address 192.168.0.1. Answer: B is incorrect. This entry will not forward any message to the remote host having IP address 192.168.0.1. Answer: C is incorrect. This entry will not forward any kernel message to the remote host having IP address 192.168.0.1.

QUESTION 7
Which of the following statements about session tracking is true?

A.    When using cookies for session tracking, there is no restriction on the name of the session tracking cookie.
B.    When using cookies for session tracking, the name of the session tracking cookie must be jsessionid.
C.    A server cannot use cookie as the basis for session tracking.
D.    A server cannot use URL rewriting as the basis for session tracking.

Answer: B
Explanation:
If you are using cookies for session tracking, the name of the session tracking cookie must be jsessionid. A jsessionid can be placed only inside a cookie header. You can use HTTP cookies to store information about a session. The servlet container takes responsibility of generating the session ID, making a new cookie object, associating the session ID into the cookie, and setting the cookie as part of response.

QUESTION 8
John works as a professional Ethical Hacker. He has been assigned the project of testing the security of www.we-are-secure.com. He wants to use Kismet as a wireless sniffer to sniff the We-are-secure network. Which of the following IEEE-based traffic can be sniffed with Kismet?

A.    802.11g
B.    802.11n
C.    802.11b
D.    802.11a

Answer: ABCD
Explanation:
Kismet can sniff IEEE 802.11a, 802.11b, 802.11g, and 802.11n-based wireless network traffic.

QUESTION 9
Which of the following statements about the traceroute utility are true?

A.    It uses ICMP echo packets to display the Fully Qualified Domain Name (FQDN) and the IP address of each gateway along the route to the remote host.
B.    It records the time taken for a round trip for each packet at each router.
C.    It is an online tool that performs polymorphic shell code attacks.
D.    It generates a buffer overflow exploit by transforming an attack shell code so that the new attack shell code cannot be recognized by any Intrusion Detection Systems.

Answer: AB
Explanation:
Traceroute is a route-tracing utility that displays the path an IP packet takes to reach its destination. It uses ICMP echo packets to display the Fully Qualified Domain Name (FQDN) and the IP address of each gateway along the route to the remote host. This tool also records the time taken for a round trip for each packet at each router that can be used to find any faulty router along the path. Answer: C, D are incorrect. Traceroute does not perform polymorphic shell code attacks. Attacking tools such as ADMutate areused to perform polymorphic shell code attacks.

QUESTION 10
George works as an office assistant in Soft Well Inc. The company uses the Windows Vista operating system. He wants to disable a program running on a computer. Which of the following Windows Defender tools will he use to accomplish the task?

A.    Allowed items
B.    Quarantined items
C.    Options
D.    Software Explorer

Answer: D
Explanation:
Software Explorer is used to remove, enable, or disable a program running on a computer. Answer: A is incorrect. Allowed items contains a list of all the programs that a user has chosen not to monitor with Windows Defender. Answer: C is incorrect. Options is used to choose how Windows Defender should monitor all the programs running on a computer. Answer: B is incorrect. Quarantined items is used to remove or restore a program blocked by Windows Defender.

QUESTION 11
You work as a Network Administrator for XYZ CORP. The company has a Windows Active Directory-based single domain single forest network. The functional level of the forest is Windows Server 2003. The company’s management has decided to provide laptops to its sales team members. These laptops are equipped with smart card readers. The laptops will be configured as wireless network clients. You are required to accomplish the following tasks: The wireless network communication should be secured. The laptop users should be able to use smart cards for getting authenticated. In order to accomplish the tasks, you take the following steps: Configure 802.1x and WEP for the wireless connections. Configure the PEAP-MS-CHAP v2 protocol for authentication. What will happen after you have taken these steps?

A.    Both tasks will be accomplished.
B.    The laptop users will be able to use smart cards for getting authenticated.
C.    The wireless network communication will be secured.
D.    None of the tasks will be accomplished.

Answer: C
Explanation:
As 802.1x and WEP are configured, this step will enable the secure wireless network communication. For authentication, you have configured the PEAP-MS-CHAP v2 protocol. This protocol can be used for authentication on wireless networks, but it cannot use a public key infrastructure (PKI). No certificate can be issued without a PKI. Smart cards cannot be used for authentication without certificates. Hence, the laptop users will not be able to use smart cards for getting authenticated.

QUESTION 12
You work as the Network Administrator for XYZ CORP. The company has a Unix-based network. You want to print the super block and block the group information for the filesystem present on a system. Which of the following Unix commands can you use to accomplish the task?

A.    e2fsck
B.    dump
C.    dumpe2fs
D.    e2label

Answer: C
Explanation:
In Unix, the dumpe2fs command dumps the filesystem superblock and blocks the group information. Answer: B is incorrect. In Unix, the dump command is used to back up an ext2 filesystem. Answer: A is incorrect. The e2fsck command is used to check the second extended file system (E2FS) of a Linux computer. Syntax: e2fsck [options] <device> Where, <device> is the file name of a mounted storage device (for example, /dev/hda1). Several options are used with the e2fsck command. Following is a list of some important options:

image
C:\Documents and Settings\user-nwz\Desktop\1.JPG
Answer: D is incorrect. In Unix, the e2label command is used to change the label of an ext2 filesystem.

QUESTION 13
Which of the following is a wireless auditing tool that is used to pinpoint the actual physical location of wireless devices in the network?

A.    KisMAC
B.    Ekahau
C.    Kismet
D.    AirSnort

Answer: B
Explanation:
Ekahau is an easy-to-use powerful and comprehensive tool for network site surveys and optimization. It is an auditing tool that can be used to pinpoint the actual physical location of wireless devices in the network. This tool can be used to make a map of the office and then perform the survey of the office. In the process, if one finds an unknown node, ekahau can be used to locate that node. Answer: D 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: C is incorrect. Kismet is a Linux-based 802.11 wireless network sniffer and intrusion detection system. It can work with any wireless card that supports raw monitoring (rfmon) mode. Kismet can sniff 802.11b, 802.11a, 802.11g, and 802.11n traffic. Kismet can be used for the following tasks: To identify networks by passively collecting packets To detect standard named networks To detect masked networks
To collect the presence of non-beaconing networks via data traffic Answer: A is incorrect. KisMAC is a wireless network discovery tool for Mac OS X. It has a wide range of features, similar to those of Kismet, its Linux/BSD namesake and far exceeding those of NetStumbler, its closest equivalent on Windows. The program is geared toward network security professionals, and is not as novice- friendly as similar applications. KisMAC will scan for networks passively on supported cards – including Apple’s AirPort, and AirPort Extreme, and many third-party cards, and actively on any card supported by Mac OS X itself. Cracking of WEP and WPA keys, both by brute force, and exploiting flaws such as weak scheduling and badly generated keys is supported when a card capable of monitor mode is used, and packet reinjection can be done with a supported card. GPS mapping can be performed when an NMEA compatible GPS receiver is attached. Data can also be saved in pcap format and loaded into programs such as Wireshark.

QUESTION 14
Which of the following tools works both as an encryption-cracking tool and as a keylogger?

A.    Magic Lantern
B.    KeyGhost Keylogger
C.    Alchemy Remote Executor
D.    SocketShield

Answer: A
Explanation:
Magic Lantern works both as an encryption-cracking tool and as a keylogger. Answer: C is incorrect. Alchemy Remote Executor is a system management tool that allows Network Administrators to execute programs on remote network computers without leaving their workplace. From the hacker’s point of view, it can be useful for installing keyloggers, spyware, Trojans, Windows rootkits and such. One necessary condition for using the Alchemy Remote Executor is that the user/attacker must have the administrative passwords of the remote computers on which the malware is to be installed. Answer: B is incorrect. The KeyGhost keylogger is a hardware keylogger that is used to log all keystrokes on a computer. It is a tiny device that clips onto the keyboard cable. Once the KeyGhost keylogger is attached to the computer, it quietly logs every key pressed on the keyboard into its own internal Flash memory (just as with smart cards). When the log becomes full, it overwrites the oldest keystrokes with the newest ones. Answer: D is incorrect. SocketShield provides a protection shield to a computer system against malware, viruses, spyware, and various types of keyloggers. SocketShield provides protection at the following two levels: 1.Blocking: In this level, SocketShield uses a list of IP addresses that are known as purveyor of exploits. All http requests for any page in these domains are simply blocked. 2.Shielding: In this level, SocketShield blocks all the current and past IP addresses that are the cause of unauthorized access.

QUESTION 15
You work as the Network Administrator for XYZ CORP. The company has a Unix-based network. You want to set some terminal characteristics and environment variables. Which of the following Unix configuration files can you use to accomplish the task?

A.    /etc/sysconfig/routed
B.    /proc/net
C.    /etc/sysconfig/network-scripts/ifcfg-interface
D.    /etc/sysconfig/init

Answer: D
Explanation:
In Unix, the /etc/sysconfig/init file is used to set terminal characteristics and environment variables. Answer: B is incorrect. In Unix, the /proc/net file contains status information about the network protocols. Answer: C is incorrect. In Unix, the /etc/sysconfig/network- scripts/ifcfg-interface file is the configuration file used to define a network interface. Answer: A is incorrect. In Unix, the /etc/sysconfig/routed file is used to set up the dynamic routing policies.

QUESTION 16
You work as a Network Auditor for XYZ CORP. The company has a Windows-based network. While auditing the company’s network, you are facing problems in searching the faults and other entities that belong to it. Which of the following risks may occur due to the existence of these problems?

A.    Residual risk
B.    Inherent risk
C.    Secondary risk
D.    Detection risk

Answer: D
Explanation:
Detection risks are the risks that an auditor will not be able to find what they are looking to detect. Hence, it becomes tedious to report negative results when material conditions (faults) actually exist. Detection risk includes two types of risk: Sampling risk: This risk occurs when an auditor falsely accepts or erroneously rejects an audit sample. Nonsampling risk: This risk occurs when an auditor fails to detect a condition because of not applying the appropriate procedure or using procedures inconsistent with the audit objectives (detection faults). Answer: A is incorrect. Residual risk is the risk or danger of an action or an event, a method or a (technical) process that, although being abreast with science, still conceives these dangers, even if all theoretically possible safety measures would be applied (scientifically conceivable measures). The formula to calculate residual risk is (inherent risk) x (control risk) where inherent risk is (threats vulnerability). In the economic context, residual means "the quantity left over at the end of a process; a remainder". Answer: B is incorrect. Inherent risk, in auditing, is the risk that the account or section being audited is materially misstated without considering internal controls due to error or fraud. The assessment of inherent risk depends on the professional judgment of the auditor, and it is done after assessing the business environment of the entity being audited. Answer: C is incorrect. A secondary risk is a risk that arises as a straight consequence of implementing a risk response. The secondary risk is an outcome of dealing with the original risk. Secondary risks are not as rigorous or important as primary risks, but can turn out to be so if not estimated and planned properly.

QUESTION 17
Which of the following statements are true about locating rogue access points using WLAN discovery software such as NetStumbler, Kismet, or MacStumbler if you are using a Laptop integrated with Wi-Fi compliant MiniPCI card? (Choose two)

A.    These tools can determine the rogue access point even when it is attached to a wired network.
B.    These tools can determine the authorization status of an access point.
C.    These tools cannot detect rogue access points if the victim is using data encryption.
D.    These tools detect rogue access points if the victim is using IEEE 802.11 frequency bands.

Answer: BD
Explanation:
WLAN discovery software such as NetStumbler, Kismet, or MacStumbler can be used to detect rogue access points if the victim is using IEEE 802 frequency bands. However, if the victim is using non-IEEE 802.11 frequency bands or unpopular modulations, these tools might not detect rogue access. NetStumbler, kismet, or MacStumbler also gives the authorization status of an access point. A Rogue access point (AP) is set up by the attackers in an Enterprise’s network. The attacker captures packets in the existing wireless LAN (WLAN) and finds the SSID and security keys (by cracking). Then the attacker sets up his own AP using the same SSID and security keys. The network clients unknowingly use this AP and the attacker captures their usernames and passwords. This can help the attacker to intrude the security and have access to the Enterprise data. Answer: A, C are incorrect. The WLAN software such as NetStumbler, Kismet, or MacStumbler can search rogue access points even when the victim is using data encryption. However, these tools cannot determine the rogue access point even when it is attached to a wired network.

QUESTION 18
A Web developer with your company wants to have wireless access for contractors that come in to work on various projects. The process of getting this approved takes time. So rather than wait, he has put his own wireless router attached to one of the network ports in his department. What security risk does this present?

A.    None, adding a wireless access point is a common task and not a security risk.
B.    It is likely to increase network traffic and slow down network performance.
C.    This circumvents network intrusion detection.
D.    An unauthorized WAP is one way for hackers to get into a network.

Answer: D
Explanation:
Any unauthorized Wireless Access Point (WAP) is a serious security breach. Its configuration might be very unsecure. For example it might not use encryption or MAC filtering, thus allowing anyone in range to get on the network.

QUESTION 19
Which of the following allows the use of multiple virtual servers using different DNS names resolved by the same IP address?

A.    HTTP 1.1
B.    JAVA
C.    HTML
D.    VPN

Answer: A
Explanation:
HTTP 1.1 allows the use of multiple virtual servers, all using different DNS names resolved by the same IP address. The WWW service supports a concept called virtual server. A virtual server can be used to host multiple domain names on the same physical Web server. Using virtual servers, multiple FTP sites and Web sites can be hosted on a single computer. It means that there is no need to allocate different computers and software packages for each site. Answer:
D is incorrect. VPN stands for virtual private network. It allows users to use the Internet as a secure pipeline to their corporate local area networks (LANs). Remote users can dial-in to any local Internet Service Provider (ISP) and initiate a VPN session to connect to their corporate LAN over the Internet. Companies using VPNs significantly reduce long-distance dial-up charges. VPNs also provide remote employees with an inexpensive way of remaining connected to their company’s LAN for extended periods.
Answer: B is incorrect. Java is an object oriented programming language developed by Sun Microsystems. It allows the creation of platform independent executables. Java source code files are compiled into a format known as bytecode (files with .class extension). Java supports programming for the Internet in the form of Java applets. Java applets can be executed on a computer having a Java interpreter and a run-time environment known as Java Virtual Machine (JVM). Java Virtual Machines (JVMs) are available for most operating systems, including UNIX, Macintosh OS, and Windows. Answer: C is incorrect. HTML stands for Hypertext Markup Language. It is a set of markup symbols or codes used to create Web pages and define formatting specifications. The markup tells the Web browser how to display the content of the Web page.

QUESTION 20
Which of the following is Microsoft’s implementation of the file and application server for the Internet and private intranets?

A.    Internet Server Service (ISS)
B.    Internet Server (IS)
C.    WWW Server (WWWS)
D.    Internet Information Server (IIS)

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