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. Bbenign activity reported as malicious






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






3. IDS response method using logging and notification






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






5. Malicious activity not reported or detected






6. Dynamic / private ports






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






8. 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






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






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






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






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






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






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






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






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






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






19. Used to pass data from one VLAN to another






20. Firewall with several NICs connected to different networks






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






22. Head of a packet contains...






23. A locked down/hardened host on the public side of the firewall highly exposed to attacks (i.e. web server - email server)






24. Packet filtering - proxies - stateful inspection






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






26. An attack where fragmented UDP packets with odd offset values are sent to the victim - when the OS attempts to rebuild the fragments they overwrite each other and cause confusion






27. Acts as an organizations internal phone system






28. Collection on honeypots






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






30. When a hacker takes over a TCP session between two machines - also known as session hijacking - foiled by the use of encrypted sessions






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






32. 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






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






34. Firewall with two NICs - one internal and one external facing - NAT is often used with this firewall






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






36. Twisted pair cable with speed capability of 1Gbps






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






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






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






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






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






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






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






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






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






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






47. 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






48. A logical division of a computer network - in which all nodes can reach each other by broadcast at the data link layer - equivalent to a VLAN






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






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