SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Comptia Security +: Network Security
Start Test
Study First
Subjects
:
certifications
,
comptia-security-+
,
it-skills
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. Protocol used to map an known IP address to its corresponding media access control (MAC) address
screened subnet
port
risk mitigation
ARP
2. Connects devices together to form a subnet - packet forwarding is based on MAC addresses - works at the data link layer of the OSI
stateful inspection
NIPS
switch
fraggle
3. IDS response method using logging and notification
proxy
smurf
passive
man in the middle
4. One process on every system - use local system resources - detect attacks that NIDS misses - examine data after decrypted - can be OS specific - more expensive
smurf
HIDS
IP spoofing
tcp/ip hijacking
5. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets
SYN flood
dual homed
twisted pair
deny by default
6. Monitors network traffic to identify possible attacks
IP spoofing
NIDS
static NAT
dual homed
7. IDS that relies on usage patterns and baseline operation - can ID new vulnerability - high rate of false alarms
behavior based
private
deny by default
null session
8. Amplifies the signal of incoming packets before broadcasting them to the network
application gateway
NIDS
dual homed
repeater
9. Session hijacking countermeasure
honeynet
source - destination - protocol
encrypt session key
protocol
10. 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
coaxial
content filter
smurf
firewalls
11. 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
IP spoofing
extranet
store and forward
spoofing attacks
12. IDS that relies on the identification of known attack signatures
deny by default
promiscuous
knowledge based
proxy
13. Connects devices together to form a subnet - broadcasts incoming packets to all devices
deny by default
hub
PBX (Private Branch Exchange)
false positive
14. Cable used most in networks - maximum speed 1Gbps - maximum length 100 meters - susceptible to tap
fiber optic
IP spoofing
twisted pair
private
15. 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
defense in depth
NIPS
teardrop
NIDS
16. Examines a entire packet and determines action based on a complex set of rules
screened host
active
split horizon DNS
application gateway
17. Ping flooding - ping of death - smurf - fraggle - SYN flood - land - teardrop - email flood
NIPS
static NAT
content filter
DoS attacks
18. Level 2 firewall often used to filter web traffic
deny by default
coaxial
proxy
private
19. Unauthenticated Windows session where an attacker can gather list of users - groups - machines - shares - user and host SID
network
null session
store and forward
session hijacking
20. Generate random TCP sequence numbers and encrypt traffic countermeasure what attacks
screened host
man in the middle and replay
spoofing
subnet
21. Allows all traffic except traffic that is specifically denied - also known as permissive access
website spoofing
NIDS network connections
allow by default
smurf
22. Most common DMZ implementation using three firewall interfaces (internet - intranet - DMZ)
ARP poisoning
10Base5
application
multiple interface firewall
23. Known as thicknet - 10mbps - limited to 500 meters
static NAT
10Base5
ping of death
smurf
24. Variation of the SYN flood where SYN packets are spoofed to have the same source and destination IP address and port
dual homed
allow by default
land attack
source - destination - protocol
25. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet
IP spoofing
repeater
dual homed
layered
26. User / registered ports
teardrop
twisted pair
router
1024 - 49 -151
27. A pool of public IP addresses is shared by a collection of private IP addresses
content filter
dynamic NAT
active
SYN flood
28. Creating a illegitimate website with the intention of convincing victims that they are visiting a legitimate site - typically to collect confidential information
website spoofing
DNS spoofing
passive
null session
29. Firewall with several NICs connected to different networks
port
multi homed
DMZ
proxy
30. An attacker redirects traffic by falsifying the IP address requested by ARP request
cat5
ARP poisoning
false negative
port
31. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall
firewalls
0 - 1023
zone transfer
packet filter
32. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other
1024 - 49 -151
man in the middle
smurf
behavior based
33. IP spoofing attack where the attacker can monitor packets and participate in bidirectional communication
zone transfer
fraggle
hub
informed
34. Firewall with two NICs - one internal and one external facing - NAT is often used with this firewall
bastion host
stateful inspection
dual homed
static NAT
35. Malicious activity not reported or detected
fiber optic
false negative
store and forward
ARP poisoning
36. Known as thinnet - 10mbps - limited to 185 meters
honeynet
encrypt session key
10base2
passive
37. Dynamic / private ports
subnet
encrypt session key
49 -152 - 65 -535
bastion host
38. Firewall that communicates directly with a perimeter router and the internal network - 2 NICs - screens internal traffic
screened host
ARP
proxy
DNS spoofing
39. When a hacker takes over a TCP session between two machines - also known as session hijacking - foiled by the use of encrypted sessions
tcp/ip hijacking
fiber optic
spoofing
null session
40. A physical or logical subnetwork that houses systems accessible to a larger untrusted network - usually the Internet - also known as DMZ
49 -152 - 65 -535
screened subnet
false negative
man in the middle and replay
41. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address
VLAN
honeynet
subnet
false negative
42. Firewall that intercepts and inspects messages before delivering them - placed between trusted and untrusted networks - degrade network traffic - also know as application gateway
proxy
DoS attacks
false positive
zone transfer
43. Used by ISPs - single public network IP address is shared among many hosts on a private network - also known as PAT
NIDS
10Base5
port address translation
NIDS network connections
44. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system
NIDS network connections
hub
router
port
45. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system
PBX (Private Branch Exchange)
man in the middle
IP spoofing
twisted pair
46. A locked down/hardened host on the public side of the firewall highly exposed to attacks (i.e. web server - email server)
honeypot
blind
bastion host
NIDS network connections
47. 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
stateful inspection
NIDS
bastion host
store and forward
48. IP - email - website - DNS - and ARP
hub
IP spoofing
false negative
spoofing attacks
49. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets
ARP
NIDS
deny by default
packet filter
50. Packet filtering - proxies - stateful inspection
DNS spoofing
content filter
NAT
firewalls