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312-38 Latest Exam (Sep 2017)

[Free] 2017(Sep) EnsurePass Passguide ECCouncil 312-38 Dumps with VCE and PDF 11-20

September 20, 2017

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2017 Sep ECCouncil Official New Released 312-38
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EC-Council Network Security Administrator (ENSA)

Question No: 11 – (Topic 1)

John works as a professional Ethical Hacker. He has been assigned the project of testing the security of www.we-are-secure.com. He is using a tool to crack the wireless encryption keys. The description of the tool is as follows:

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Which of the following tools is John using to crack the wireless encryption keys?

  1. PsPasswd

  2. Kismet

  3. AirSnort

  4. Cain

Answer: C Explanation:

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 B 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 option D is incorrect. Cain is a multipurpose tool that can be used to perform many tasks such as Windows password cracking, Windows enumeration, and VoIP session sniffing. This password cracking program can perform the following types of password cracking attacks:

Dictionary attack Brute force attack Rainbow attack Hybrid attack

Answer option A is incorrect. PsPasswd is a tool that helps Network Administrators change an account password on the local or remote system. The command syntax of PsPasswd is as follows:

pspasswd [\\computer[,computer[,..] | @file [-u user [-p psswd]] Username [NewPassword]

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Question No: 12 – (Topic 1)

Which of the following is a process that detects a problem, determines its cause, minimizes

the damages, resolves the problem, and documents each step of response for future reference?

  1. Incident response

  2. Incident handling

  3. Incident management

  4. Incident planning

Answer: A Explanation:

Incident response is a process that detects a problem, determines its cause, minimizes the damages, resolves the problem, and documents each step of response for future reference. One of the primary goals of incident response is to quot;freeze the scenequot;. There is a close relationship between incident response, incident handling, and incident management. The primary goal of incident handling is to contain and repair any damage caused by an event and to prevent any further damage. Incident management manages the overall process of an incident by declaring the incident and preparing documentation and post-mortem reviews after the incident has occurred.

Answer option B is incorrect. The primary goal of incident handling is to contain and repair any damage caused by an event and to prevent any further damage.

Answer option C is incorrect. It manages the overall process of an incident by declaring the incident and preparing documentation and post-mortem reviews after the incident has occurred.

Answer option D is incorrect. This is an invalid option.

Question No: 13 – (Topic 1)

Which of the following is designed to detect the unwanted presence of fire by monitoring environmental changes associated with combustion?

  1. Fire sprinkler

  2. Fire suppression system

  3. Fire alarm system

  4. Gaseous fire suppression

Answer: C

Explanation:

An automatic fire alarm system is designed for detecting the unwanted presence of fire by monitoring environmental changes associated with combustion. In general, a fire alarm system is classified as either automatically actuated, manually actuated, or both. Automatic fire alarm systems are intended to notify the building occupants to evacuate in the event of a fire or other emergency, to report the event to an off-premises location in order to summon emergency services, and to prepare the structure and associated systems to control the spread of fire and smoke.

Answer option B is incorrect. A fire suppression system is used in conjunction with smoke detectors and fire alarm systems to improve and increase public safety.

Answer option D is incorrect. Gaseous fire suppression is a term to describe the use of inert gases and chemical agents to extinguish a fire.

Answer option A is incorrect. A fire sprinkler is the part of a fire sprinkler system that discharges water when the effects of a fire have been detected, such as when a predetermined temperature has been reached.

Question No: 14 – (Topic 1)

Which of the following is an intrusion detection system that monitors and analyzes the internals of a computing system rather than the network packets on its external interfaces?

  1. IPS

  2. HIDS

  3. DMZ

  4. NIDS

Answer: B Explanation:

A host-based intrusion detection system (HIDS) produces a false alarm because of the abnormal behavior of users and the network. A host-based intrusion detection system (HIDS) is an intrusion detection system that monitors and analyses the internals of a computing system rather than the network packets on its external interfaces. A host-based Intrusion Detection System (HIDS) monitors all or parts of the dynamic behavior and the state of a computer system. HIDS looks at the state of a system, its stored information, whether in RAM, in the file system, log files or elsewhere; and checks that the contents of

these appear as expected.

Answer option D is incorrect. A network intrusion detection system (NIDS) is an intrusion detection system that tries to detect malicious activity such as denial of service attacks, port scans or even attempts to crack into computers by monitoring network traffic. A NIDS reads all the incoming packets and tries to find suspicious patterns known as signatures or rules. It also tries to detect incoming shell codes in the same manner that an ordinary intrusion detection systems does.

Answer option A is incorrect. IPS (Intrusion Prevention Systems), also known as Intrusion Detection and Prevention Systems (IDPS), are network security appliances that monitor network and/or system activities for malicious activity. The main functions of quot;intrusion prevention systemsquot; are to identify malicious activity, log information about said activity, attempt to block/stop activity, and report activity. An IPS can take such actions as sending an alarm, dropping the malicious packets, resetting the connection and/or blocking the traffic from the offending IP address. An IPS can also correct CRC, unfragment packet streams, prevent TCP sequencing issues, and clean up unwanted transport and network layer options.

Answer option C is incorrect. DMZ, or demilitarized zone, is a physical or logical subnetwork that contains and exposes an organization#39;s external services to a larger untrusted network, usually the Internet. The term is normally referred to as a DMZ by IT professionals. It is sometimes referred to as a Perimeter Network. The purpose of a DMZ is to add an additional layer of security to an organization#39;s Local Area Network (LAN); an external attacker only has access to equipment in the DMZ rather than any other part of the network.

Question No: 15 – (Topic 1)

Which of the following types of VPN uses the Internet as its main backbone, allowing users, customers, and branch offices to access corporate network resources across various network architectures?

  1. PPTP VPN

  2. Remote access VPN

  3. Extranet-based VPN

  4. Intranet-based VPN

Answer: C Explanation:

An extranet-based VPN uses the Internet as its main backbone network, allowing users, customers, and branch offices to access corporate network resources across various network architectures. Extranet VPNs are almost identical to intranet VPNs, except that they are intended for external business partners.

Answer option D is incorrect. An intranet-based VPN is an internal, TCP/IP-based, password-protected network usually implemented for networks within a common network infrastructure having various physical locations. Intranet VPNs are secure VPNs that have strong encryption.

Answer option B is incorrect. A remote access VPN is one of the types of VPN that involves a single VPN gateway. It allows remote users and telecommuters to connect to their corporate LAN from various points of connections. It provides significant cost savings by reducing the burden of long distance charges associated with dial-up access. Its main security concern is authentication, rather than encryption. Answer option A is incorrect. The PPTP VPN is one of the types of VPN technology.

Question No: 16 – (Topic 1)

Which of the following is a protocol that describes an approach to providing quot;streamlinedquot; support of OSI application services on top of TCP/IP-based networks for some constrained environments?

  1. Network News Transfer Protocol

  2. Lightweight Presentation Protocol

  3. Internet Relay Chat Protocol

  4. Dynamic Host Configuration Protocol

Answer: B Explanation:

Lightweight Presentation Protocol (LPP) is a protocol that describes an approach to providing quot;streamlinedquot; support of OSI application services on top of TCP/IP-based networks for some constrained environments. This protocol was initially derived from a requirement to run the ISO Common Management Information Protocol (CMIP) in TCP/IP- based networks.

This protocol is designed for a particular class of OSI applications, namely those entities whose application context includes only an Association Control Service Element (ACSE)

and a Remote Operations Service Element (ROSE).

Answer option D is incorrect. The Dynamic Host Configuration Protocol (DHCP) is a computer networking protocol used by hosts (DHCP clients) to retrieve IP address assignments and other configuration information. DHCP uses a client-server architecture. The client sends a broadcast request for configuration information. The DHCP server receives the request and responds with configuration information from its configuration database. In the absence of DHCP, all hosts on a network must be manually configured individually – a time-consuming and often error-prone undertaking. DHCP is popular with ISP#39;s because it allows a host to obtain a temporary IP address.

Answer option A is incorrect. Answer option C is incorrect. Internet Relay Chat (IRC) is a chat service, which is a client-server protocol that supports real-time text chat between two or more users over a TCPIP network.

Question No: 17 – (Topic 1)

You are an Administrator for a network at an investment bank. You are concerned about individuals breeching your network and being able to steal data before you can detect their presence and shut down their access. Which of the following is the best way to address this issue?

  1. Implement a strong password policy.

  2. Implement a strong firewall.

  3. Implement a honey pot.

  4. Implement network based anti virus.

Answer: C Explanation:

A honey pot is designed to attract intruders to a false server that has no real data (but may seem to have valuable data). The specific stated purpose of a honey pot is as a backup plan in case an intruder does gain access to your network.

Answer option B is incorrect. The firewall may help reduce the chance of an intruder gaining access, but won#39;t help protect you once they have gained access.

Question No: 18 – (Topic 1)

Which of the following is the practice of sending unwanted e-mail messages, frequently with commercial content, in large quantities to an indiscriminate set of recipients? Each correct answer represents a complete solution. Choose all that apply.

  1. E-mail spam

  2. Junk mail

  3. Email spoofing

  4. Email jamming

Answer: A,B Explanation:

E-mail spam, also known as unsolicited bulk email (UBE), junk mail, or unsolicited commercial email (UCE), is the practice of sending unwanted e-mail messages, frequently with commercial content, in large quantities to an indiscriminate set of recipients.

Answer option C is incorrect. Email spoofing is a fraudulent email activity in which the sender address and other parts of the email header are altered to appear as though the email originated from a different source. Email spoofing is a technique commonly used in spam and phishing emails to hide the origin of the email message. By changing certain properties of the email, such as the From, Return-Path and Reply-To fields (which can be found in the message header), ill-intentioned users can make the email appear to be from someone other than the actual sender. The result is that, although the email appears to come from the address indicated in the From field (found in the email headers), it actually comes from another source.

Answer option D is incorrect. Email jamming is the use of sensitive words in e-mails to jam the authorities that listen in on them by providing a form of a red herring and an intentional annoyance. In this attack, an attacker deliberately includes quot;sensitivequot; words and phrases in otherwise innocuous emails to ensure that these are picked up by the monitoring systems. As a result the senders of these emails will eventually be added to a quot;harmlessquot; list and their emails will be no longer intercepted, hence it will allow them to regain some privacy.

Question No: 19 CORRECT TEXT – (Topic 1)

Fill in the blank with the appropriate word. The risk analysis

process analyzes the effect of a risk event deriving a numerical value.

Answer: quantitative

Question No: 20 – (Topic 1)

Which of the following is a tool that runs on the Windows OS and analyzes iptables log messages to detect port scans and other suspicious traffic?

  1. Nmap

  2. Hping

  3. NetRanger

  4. PSAD

Answer: D Explanation:

PSAD is a tool that runs on the Windows OS and analyzes iptables log messages to detect port scans and other suspicious traffic. It includes many signatures from the IDS to detect probes for various backdoor programs such as EvilFTP, GirlFriend, SubSeven, DDoS tools (mstream, shaft), and advanced port scans (FIN, NULL, XMAS). If it is combined with fwsnort and the Netfilter string match extension, it detects most of the attacks described in the Snort rule set that involve application layer data.

Answer option C is incorrect. NetRanger is the complete network configuration and information toolkit that includes the following tools: a Ping tool, Trace Route tool, Host Lookup tool, Internet time synchronizer, Whois tool, Finger Unix hosts tool, Host and port scanning tool, check multiple POP3 mail accounts tool, manage dialup connections tool, Quote of the day tool, and monitor Network Settings tool. These tools are integrated in order to use an application interface with full online help. NetRanger is designed for both new and experienced users. This tool is used to help diagnose network problems and to get information about users, hosts, and networks on the Internet or on a user computer network. NetRanger uses multi-threaded and multi-connection technologies in order to be very fast and efficient.

Answer option B is incorrect. Hping is a free packet generator and analyzer for the TCP/IP protocol. Hping is one of the de facto tools for security auditing and testing of firewalls and networks. The new version of hping, hping3, is scriptable using the Tcl language and implements an engine for string based, human readable description of TCP/IP packets, so that the programmer can write scripts related to low level TCP/IP packet manipulation and

analysis in very short time. Like most tools used in computer security, hping is useful to both system administrators and crackers (or script kiddies).

Answer option A is incorrect. Nmap is a free open-source utility for network exploration and security auditing. It is used to discover computers and services on a computer network, thus creating a quot;mapquot; of the network. Just like many simple port scanners, Nmap is capable of discovering passive services. In addition, Nmap may be able to determine various details about the remote computers. These include operating system, device type, uptime, software product used to run a service, exact version number of that product, presence of some firewall techniques and, on a local area network, even vendor of the remote network card. Nmap runs on Linux, Microsoft Windows, etc.

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