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






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






3. Most common DMZ implementation using three firewall interfaces (internet - intranet - DMZ)






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






5. Take control of a session between a server and client - the users gets kicked off the session while the attacker inserts himself into the session by sending a reset request to the client






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






7. A complete transfer of all DNS zone information from one server to another






8. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address






9. Man in the middle attack where the attacker captures the traffic and sends it to the original recipient without altering the intercepted data






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






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






12. 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






13. Level 2 firewall often used to filter web traffic






14. Malicious insiders - connections that bypass the firewall (i.e. IM) - encrypted traffic/tunneling - social engineering - physical access are missed by ___________






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






16. A variation of a smurf attack using UDP






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






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






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






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






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






22. 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






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






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






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






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






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






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






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






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






31. Twisted pair cable with speed capability of 10Mbps






32. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets






33. Head of a packet contains...






34. Crashing a computer by sending oversized packets (over 64 bytes) that it doesn't know how to handle






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






36. IDS response method using logging and notification






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






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






39. A flaw in TCP/IP to verify that a packet really comes from the addess indicated in the IP header leads to this attack






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






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






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






43. Dynamic / private ports






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






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






46. One device per network segment - does not use local system resources - can't examine encrypted traffic - OS independent - less expensive






47. Attempt to block service or reduce activity by overloading the victim machine with ping requests






48. Generate random TCP sequence numbers and encrypt traffic countermeasure what attacks






49. Two authoritative sources for your domain namespace with differing contents depending on whether the query is internal or external






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