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






2. Malicious activity not reported or detected






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






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






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






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






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






8. IDS response method using logging and notification






9. 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






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






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






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






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






15. Monitors network traffic to identify possible attacks






16. Packet filtering - proxies - stateful inspection






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






18. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other






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






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






21. Collection on honeypots






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






23. Protocol used to map an known IP address to its corresponding media access control (MAC) address






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






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






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






27. 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






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






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






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






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






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






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






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






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






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






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






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






39. Dynamic / private ports






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






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






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






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






44. 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






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






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






47. A variation of a smurf attack using UDP






48. Used to pass data from one VLAN to another






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






50. 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