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






2. A pool of public IP addresses is shared by a collection of private IP addresses






3. An application layer gateway works at this layer of the OSI model






4. Monitors network traffic to identify possible attacks






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






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






7. Firewall that intercepts and inspects messages before delivering them - placed between trusted and untrusted networks - degrade network traffic - also know as application gateway






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






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






10. 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






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






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






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






14. Examines a entire packet and determines action based on a complex set of rules






15. A logical connection point allowing computers and software to communicate and exchange data






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






17. A physical or logical subnetwork that houses systems accessible to a larger untrusted network - usually the Internet - also known as DMZ






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






19. Variation of the SYN flood where SYN packets are spoofed to have the same source and destination IP address and port






20. Protocol used to map an known IP address to its corresponding media access control (MAC) address






21. A feature of firewalls / routers that disguise the IP address of internal systems allowing connection to the Internet using one public address






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






23. Packet filtering - proxies - stateful inspection






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






25. 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






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






27. IPS response method - terminate process/session - block/reject and redirect network traffic






28. A group of hosts on logical network segment that communicate as if they were attached to the same broadcast domain - regardless of their physical location






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






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






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






32. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice






33. Malicious activity not reported or detected






34. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer






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






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






37. A sniffer mode used to capture traffic addressed to/from another machine on the network






38. Known as thicknet - 10mbps - limited to 500 meters






39. Cable used most in networks - maximum speed 1Gbps - maximum length 100 meters - susceptible to tap






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






41. Bastion host - dual homed firewall - multi homed firewall - screened host - screened subnet






42. IP - email - website - DNS - and ARP






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






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






45. A decoy system - intentionally left exposed to attract/distract attackers - logs and monitors attacker activities






46. Session hijacking countermeasure






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






48. Cable designed for transmission at higher speeds (100Mbps - 2Gbps) and longer distances (2km) - expensive -eliminates signal tapping






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






50. One private IP address is mapped to one public IP address