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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. Level 2 firewall often used to filter web traffic






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






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






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






5. A variation of a smurf attack using UDP






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






7. 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






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






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






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






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






12. Head of a packet contains...






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






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






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






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






17. Monitors network traffic to identify possible attacks






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






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






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






21. Malicious activity not reported or detected






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






23. Packet filtering - proxies - stateful inspection






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






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






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






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






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






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






30. 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






31. Twisted pair cable with speed capability of 1Gbps






32. Bbenign activity reported as malicious






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






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






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






36. 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






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






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






39. 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






40. 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






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






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






43. Used to pass data from one VLAN to another






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






45. 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






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






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






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






49. Dynamic / private ports






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






Can you answer 50 questions in 15 minutes?



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