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






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






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






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






5. Web servers - FTP servers - DNS servers - mail servers should be located on the _____________






6. Monitors network traffic to identify possible attacks






7. Acts as an organizations internal phone system






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






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






10. Firewall with several NICs connected to different networks






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






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






13. Dynamic / private ports






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






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






16. Creating a illegitimate website with the intention of convincing victims that they are visiting a legitimate site - typically to collect confidential information






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






18. IDS response method using logging and notification






19. A server that sits between an intranet and it's Internet connection - masking all IP addresses






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






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






22. 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






23. Malicious activity not reported or detected






24. 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






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






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






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






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






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






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






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






32. Session hijacking countermeasure






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






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






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






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






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






38. User / registered ports






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






40. 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






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






42. 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






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






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






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






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






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






49. Twisted pair cable with speed capability of 10Mbps






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