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. 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






2. Collection on honeypots






3. IDS that relies on usage patterns and baseline operation - can ID new vulnerability - high rate of false alarms






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






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






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






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






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






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






10. Used to pass data from one VLAN to another






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






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






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






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






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






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






17. 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






18. Firewall with several NICs connected to different networks






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






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






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






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






23. Session hijacking countermeasure






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






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






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






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






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






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






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






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






32. Twisted pair cable with speed capability of 10Mbps






33. IDS response method using logging and notification






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






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






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






37. 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






38. Packet filtering - proxies - stateful inspection






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






40. Bbenign activity reported as malicious






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






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






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






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






45. A variation of a smurf attack using UDP






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






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






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






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






50. 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