Fill in the blank with the appropriate word is software that is a subcategory of malware and refers to unwanted software that performs malicious actions on a user's computer. Some its examples are Trojan, adware, and spyware.

Which of the following is a set of exclusive rights granted by a state to an inventor or his assignee for a fixed period of time in exchange for the disclosure of an invention?

A. Snooping

B. Copyright

C. Utility model

D. Patent

What does CSIRT stand for?

A. Computer Security Incident Response Team

B. Chief Security Incident Response Team

C. Computer Security Information Response Team

D. Chief Security Information Response Team

John works as a Professional Ethical Hacker for NetPerfect Inc. The company has a Linux-based network. All client computers are running on Red Hat 7.0 Linux. The Sales Manager of the company complains to John that his system contains an unknown package named as tar.gz and his documents are exploited. To resolve the problem, John uses a Port scanner to enquire about the open ports and finds out that the HTTP server service port on 27374 is open. He suspects that the other computers on the network are also facing the same problem. John discovers that a malicious application is using the synscan tool to randomly generate IP addresses.

Which of the following worms has attacked the computer?

A. Ramen

B. Nimda

C. Code red

D. LoveLetter

Which of the following password cracking attacks is implemented by calculating all the possible hashes for a set of characters?

A. Rainbow attack

B. Dictionary attack

C. Brute force attack

D. SQL injection attack

Which of the following DoS attacks attempts to block service or reduce activity on a host by sending ping requests directly to the victim?

A. Teardrop attack

B. Ping flood attack

C. Land attack

D. SYN flood attack

Peter works as a professional Computer Hacking Forensic Investigator for eLaw-Suit law firm. He is working on a case of a cyber crime. Peter knows that the good investigative report should not only communicate the relevant facts, but also present expert opinion. This report should not include the cases in which the expert acted as a lay witness. Which of the following type of witnesses is a lay witness?

A. One who observes an event.

B. One with special knowledge of the subject about which he or she is testifying.

C. One who can give a firsthand account of something seen, heard, or experienced.

D. One who is not qualified as an expert witness.

Which of the following attacks is used to hack simple alphabetical passwords?

A. Man-in-the-middle attack

B. Dictionary-based attack

C. Black hat attack

D. Sniffing

In which of the following access control models can a user not grant permissions to other users to see a copy of an object marked as secret that he has received, unless they have the appropriate permissions?

A. Role Based Access Control (RBAC)

B. Mandatory Access Control (MAC)

C. Access Control List (ACL)

D. Discretionary Access Control (DAC)

A firewall is a combination of hardware and software, used to provide security to a network. It is used to protect an internal network or intranet against unauthorized access from the Internet or other outside networks. It restricts inbound and outbound access and can analyze all traffic between an internal network and the Internet. Users can configure a firewall to pass or block packets from specific IP addresses and ports. Which of the following tools works as a firewall for the Linux 2.4 kernel?

A. Stunnel

B. IPTables

C. OpenSSH

D. IPChains