PPSC - Past Papers - Most Repeated — Test 12

Correct Answer: A. A. Auditing
Explanation: The answer is auditing. It is done to keep an eye on wrong doings. Auditing can be used as a deterrent.

Correct Answer: A. A. Honey pot
Explanation: Honey pot is an indirect form of surveillance. Network personnel create a trap, watching for unscrupulous acts.

Correct Answer: C. C. Trojan horse
Explanation: The answer is Trojan horse. Trojan horse is a code that is present in a program that appears harmless.

Correct Answer: D. D. Spoofing
Explanation: The attack is a spoofing attack. It is when a user creates a packet that appears to be something else or from someone else.

Correct Answer: A. A. Smurfing
Explanation: Smurfing is a technique in which a program attacks a network by exploiting IP broadcast addressing operations.

Correct Answer: C. C. E-mail bombing
Explanation: In the case of denial of e-mail bombing, a user sends an excessive amount of unwanted e-mail to someone.

Correct Answer: B. B. Packet filter
Explanation: As you know, firewalls are available as hardware appliances, as software-only, or a combination of the two. In every case, the purpose of a firewall is to isolate your trusted internal network (or your personal PC) from the dangers of unknown resources on the Internet and other network connections that may be harmful. The firewall prevents unauthorized access to your internal, trusted network from outside threats.

Correct Answer: A. A. Stateful firewall and stateless firewall
Explanation: Most network layer firewalls can operate as stateful or stateless firewalls, creating two subcategories of the standard network layer firewall. Stateful firewalls have the advantage of being able to track packets over a period of time for greater analysis and accuracy — but they require more memory and operate more slowly. Stateless firewalls do not analyze past traffic and can be useful for systems where speed is more important than security, or for systems that have very specific and limited needs. For example, a computer that only needs to connect to a particular backup server does not need the extra security of a stateful firewall.

Correct Answer: A. A. 5
Explanation: There are five layers in the Internet Protocol stack. The five layers in Internet Protocol stack is Application, Transport, Network, Data link and Physical layer. The internet protocol stack model is also called the TCP/IP model and it’s used in modern Internet Communication.

Correct Answer: D. D. Session and presentation layer
Explanation: The only difference between OSI model and TCP/IP model is that the functions of Presentation and Session layer in the OSI model are handled by the transport layer itself in TCP/IP. OSI is a generalized model and TCP/IP is an application specific model.