Security + Systems Security

The extension for a JPEG file is .jpg. The extension for a Java applet is .jar. The extension on Java source code is .java. The extension for a JavaScript file is .js.

When an application receives more data than it is programmed to accept, it is a buffer overflow. The application will either terminate or write data beyond the allocated space. A cookie is a text file that a browser maintains on a user's hard disk in order to store information about the user. SMTP Relay is an email feature that is intended to allow the server to forward email to other servers. Open Relay is a type of SMTP Relay that is being exploited.

A cookie is a text file that a browser maintains on a user's hard disk in order to store information about the user. When an application receives more data than it is programmed to accept, it is a buffer overflow. The application will either terminate or write data beyond the allocated space. SMTP Relay is an email feature that is intended to allow the server to forward email to other servers. Open Relay is a type of SMTP Relay that is being exploited.

A multipartite virus attacks a system in multiple ways. A polymorphic virus will change its form in order to avoid detection. A stealth virus avoids detection by making itself indistinguishable from other applications. A retrovirus attacks, or bypasses, the antivirus software installed on a computer.

Spyware is software that acts on behalf of a third party and collects information. Adware is a type of spyware that is often used to generate unwanted/unsolicited pop-up advertisements. Rootkits have become popular and work by hiding certain things (such as running processes) from the operating system. SCR viruses are those that are disguised as or within screen savers.

A stealth virus avoids detection by making itself indistinguishable from other applications. A retrovirus attacks, or bypasses, the antivirus software installed on a computer. A multipartite virus attacks a system in multiple ways. A polymorphic virus will change its form in order to avoid detection.

Spyware is software that acts on behalf of a third party and collects information. Rootkits have become popular and work by hiding certain things (such as running processes) from the operating system. Adware is a type of spyware that is often used to generate unwanted/unsolicited pop-up advertisements. SCR viruses are those that are disguised as or within screen savers.

eXtensible Markup Language (XML) is seen as a successor to HTML and offers many capabilities that HTML does not. The other choices are all languages that predate HTML or are not seen as successors to HTML.

Both Secure Socket Layer/Transport Layer Security (SSL/TLS) and HTTP Secure (HTTPS) are common ways to provide secure connections between a web client and a web server. Regardless of which is used, port 443 is utilized. The other two choices are not valid protocols for providing secure connections between a web client and a web server.

The three primary goals of information security are prevention, detection, and response. Detection refers to identifying events when they occur. Prevention refers to preventing computer or information violations from occurring. Response refers to developing strategies and techniques to deal with an attack or loss.

The three primary goals of information security are prevention, detection, and response. Prevention refers to preventing computer or information violations from occurring. Detection refers to identifying events when they occur. Response refers to developing strategies and techniques to deal with an attack or loss.

SMTP Relay is an email feature that is intended to allow the server to forward email to other servers. When an application receives more data than it is programmed to accept, it is a buffer overflow. The application will either terminate or write data beyond the allocated space. A cookie is a text file that a browser maintains on a user's hard disk in order to store information about the user. Open Relay is a type of SMTP Relay that is being exploited.

A retrovirus attacks, or bypasses, the antivirus software installed on a computer. A stealth virus avoids detection by making itself indistinguishable from other applications. A multipartite virus attacks a system in multiple ways. A polymorphic virus will change its form in order to avoid detection.

During a modification and repudiation attack, someone wants to modify information in your system(s). A denial-of-service (DoS) attack tries to disrupt your network and services. In an access attack, someone who should not be able to have access wants access to your resources. Interception is a type of access attack but not a general attack category.

A denial-of-service (DoS) attack tries to disrupt your network and services. In an access attack, someone who should not be able to have access wants access to your resources. During a modification and repudiation attack, someone wants to modify information in your system(s). Interception is a type of access attack but not a general attack category type.

Back Orifice is a remote administration tool used by attackers to take control of Windows-based systems in a backdoor type of attack. Brute-force attacks and dictionary attacks are password-guessing attacks, while man-in-the-middle is its own type of attack and not a type of remote administration attack.

The three components of the computer security triad that interact to provide a reasonably secure environment are physical, operational, and management.

Rootkits have become popular and work by hiding certain things (such as running processes) from the operating system. Spyware is software that acts on behalf of a third party and collects information. Adware is a type of spyware that is often used to generate unwanted/unsolicited pop-up advertisements. SCR viruses are those that are disguised as or within screen savers.

Standard web traffic uses port 80. When SSL is used (HTTPS), traffic is conducted on port 443. You don't need to block the other ports.

While all the choices listed are various types of access attacks, only in an active interception attack is a computer placed between the sender and receiver to capture information while it's sent. In a snooping attack, someone looks through your files in hopes of finding something interesting. In a passive interception attack, someone routinely monitors network traffic. In an eavesdropping attack, the attacker listens in on or overhears parts of a conversation.

A scanner is a device that looks for open ports. A sniffer is a device that captures and displays network traffic. Neither a freezer nor a watchdog is a valid network device used for this purpose.

A polymorphic virus will change its form in order to avoid detection. A stealth virus avoids detection by making itself indistinguishable from other applications. A retrovirus attacks, or bypasses, the antivirus software installed on a computer. A multipartite virus attacks a system in multiple ways.

The extension for a JavaScript file is .js. The extension for a JPEG file is .jpg. The extension for a Java applet is .jar. The extension on Java source code is .java.

The three primary goals of information security are prevention, detection, and response. Response refers to developing strategies and techniques to deal with an attack or loss. Detection refers to identifying events when they occur. Prevention refers to preventing computer or information violations from occurring.

The restricted area of memory that Java applets run in is the sandbox. The other options do not represent the restricted area of memory that Java applets run in.

Both the ping of death and buffer overflow attacks are popular examples of denial-of-service (DoS) attacks. The other options given are fictitious and not popular examples of DoS attacks.

SCR viruses are those that are disguised as or within screen savers. Grayware is a classification for software that is annoying; this includes spyware (which acts on behalf of a third party and collects information) and adware. Adware is often used to generate unwanted/unsolicited pop-up advertisements. Rootkits have become popular and work by hiding certain things (such as running processes) from the operating system.

NetBus is a remote administration tool used by attackers to take control of Windows-based systems in a backdoor type of attack. Brute-force attacks and dictionary attacks are password-guessing attacks, while man-in-the-middle is its own type of attack and not a type of remote administration attack.

Open Relay is a type of SMTP Relay that is being exploited. When an application receives more data than it is programmed to accept, it is a buffer overflow. The application will either terminate or write data beyond the allocated space. A cookie is a text file that a browser maintains on a user's hard disk in order to store information about the user. SMTP Relay is an email feature that is intended to allow the server to forward email to other servers.

Internet Group Management Protocol (IGMCP) is used to manage group or multicasting sessions. Simple Network Management Protocol (SNMP) is used to manage and monitor devices in a network. Internet Control Message Protocol (ICMP) is used to report errors and reply to requests from programs such as ping and traceroute. Trivial File Transfer Protocol (TFTP) is an anonymous version of FTP.

The two most common, or popular, spoofing attacks today are IP spoofing and DNS spoofing. The other choices do not represent the most popular spoofing attacks.

Active sniffing is more commonly known as TCP/IP hijacking. The other choices given are not valid names for active sniffing.

Footprinting is the process of systematically identifying a network and its security posture. Packet sniffing is the process of monitoring data that is transmitted across a network. Scanning is the process that attackers use to gather information about how your network is configured. Signal analysis/intelligence involves methods used to gain information about your environment including footprinting and scanning.

A phage virus modifies and alters other programs and databases. A companion virus attaches itself to a legitimate program and then creates a program with a different file extension. A macro virus exploits the macro ability in many application programs. An armored virus is designed to make itself difficult to detect or analyze.

Security tokens are forms of certificates that contain rights and access privileges of a token bearer as part of their token. Challenge Handshake Authentication Protocol (CHAP) challenges a system to verify identity and employs an encrypted challenge. Password Authentication Protocol (PAP) offers no true security and is one of the simplest forms of authentication: both the username and the password are sent as clear text and checked for a match. Kerberos authenticates a principal (user, system, program, and so on) and provides it with a ticket.

In an access attack, someone who should not be able to get it wants access to your resources. During a modification and repudiation attack, someone wants to modify information in your system(s). A denial-of-service (DoS) attack tries to disrupt your network and services. Interception is a type of access attack but not a general attack category type.

Jamming is intended to disrupt existing systems by injecting or flooding a channel with garbage data. A DoS attack in IM can take the form of many windows popping open as soon as the user tries to close one. A malformed MIME message can cause buffer overflow.

The .bat extension is used for batch files. The .com extension is used on command files. The .exe extension is used on executable files. All of these are executable files.

All the choices listed are various types of access attacks. In a passive interception attack, someone routinely monitors network traffic. In a snooping attack, someone looks through your files in hopes of finding something interesting. In an eavesdropping attack, the attacker listens in on or overhears parts of a conversation. In an active interception attack, a computer is placed between the sender and receiver to capture information while it's sent.

Scanning is the process that attackers use to gather information about how your network is configured. Packet sniffing is the process of monitoring data that is transmitted across a network. Footprinting is the process of systematically identifying a network and its security posture. Signal analysis/intelligence involves methods used to gain information about your environment including footprinting and scanning.

A malformed MIME message can cause buffer overflow. Jamming is intended to disrupt existing systems by injecting or flooding a channel with garbage data. A DoS attack in IM can take the form of many windows popping open as soon as the user tries to close one.

A denial-of-service (DoS) attack in IM can take the form of many windows popping open as soon as the user tries to close one. Jamming is intended to disrupt existing systems by injecting or flooding a channel with garbage data. A malformed MIME message can cause buffer overflow.