Test your basic knowledge |

Comptia Security +: Network Security

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A logical connection point allowing computers and software to communicate and exchange data






2. A person or program masquerades as another by presenting false information to gain an illegitimate advantage






3. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system






4. An attacker redirects traffic by falsifying the IP address requested by ARP request






5. Evolved from IDS - monitors network traffic - detects and responds to attack on network






6. Seeks to reduce the probability and/or impact of a specific risk below an acceptable threshold






7. An attacker redirects valid request to malicious sites by feeding a DNS server altered records which are retained in its cache






8. Forging an IP address with the address of a trusted host






9. Man in the middle attack where the content of an intercepted message is altered before it is sent on






10. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system






11. Malicious activity not reported or detected






12. Used by ISPs - single public network IP address is shared among many hosts on a private network - also known as PAT






13. Multiple network defense components are placed throughout the organizations assets and the network is properly segmented






14. Monitors network traffic to identify possible attacks






15. IP spoofing attack where the attacker can only send packets and has to guess about replies






16. A variation of a smurf attack using UDP






17. A server that sits between an intranet and it's Internet connection - masking all IP addresses






18. A firewall that checks all layers of a packet including content - verifying an expected response to a current communication session - also call a deep packet inspection






19. A method - used by switches and email servers - of delivering messages which are temporarily held by an intermediary before being sent to their final destination






20. IDS that relies on the identification of known attack signatures






21. Amplifies the signal of incoming packets before broadcasting them to the network






22. Firewall that communicates directly with a perimeter router and the internal network - 2 NICs - screens internal traffic






23. A packet filtering firewall works at this layer of the OSI model






24. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets






25. Allows all traffic except traffic that is specifically denied - also known as permissive access






26. An attack where an attacker captures sensitive information and sends it again later in an attempt to replicate the transaction






27. One process on every system - use local system resources - detect attacks that NIDS misses - examine data after decrypted - can be OS specific - more expensive






28. Connects devices together to form a subnet - broadcasts incoming packets to all devices






29. A level 3 firewall that remembers / tracks network connections - maintains a state table - distinguish which side of a firewall a connection was initiated - higher security






30. Twisted pair cable with speed capability of 10Mbps






31. Head of a packet contains...






32. IP spoofing attack where the attacker can monitor packets and participate in bidirectional communication






33. Unauthenticated connections - creating the potential for a successful connection as an anonymous user






34. Known as thinnet - 10mbps - limited to 185 meters






35. Cable with copper core - has no physical transmission security and is easy to tap - 10mbps - maximum length 500 meters






36. Firewall with several NICs connected to different networks






37. Level 2 firewall often used to filter web traffic






38. Network configuration that permits selected outsiders access internal information systems






39. Session hijacking countermeasure






40. A ping message is broadcast to an entire network with a spoofed source IP addess of the victim computer - flooding the victim computer with responses during this attack






41. Examines content passing through and makes a decision on the data based on a set of criteria - normal uses email filtering and web browsing






42. Unauthenticated Windows session where an attacker can gather list of users - groups - machines - shares - user and host SID






43. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x






44. Ping flooding - ping of death - smurf - fraggle - SYN flood - land - teardrop - email flood






45. Creating a illegitimate website with the intention of convincing victims that they are visiting a legitimate site - typically to collect confidential information






46. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall






47. Connects devices together to form a subnet - packet forwarding is based on MAC addresses - works at the data link layer of the OSI






48. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet






49. Connects two or more subnets - determines the best path to forward packets based on packet header and forwarding table information






50. IDS response method using logging and notification