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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. A variation of a smurf attack using UDP
fraggle
SYN flood
content filter
blind
2. Connects devices together to form a subnet - broadcasts incoming packets to all devices
VLAN
informed
hub
protocol
3. Known as thinnet - 10mbps - limited to 185 meters
deny by default
10base2
passive
application
4. Packet filtering - proxies - stateful inspection
firewalls
extranet
fiber optic
bastion host
5. Protocol used to map an known IP address to its corresponding media access control (MAC) address
cat3
firewalls
ARP
10base2
6. IP - email - website - DNS - and ARP
router
protocol
spoofing attacks
risk mitigation
7. Bastion host - dual homed firewall - multi homed firewall - screened host - screened subnet
firewall architectures
extranet
protocol
10Base5
8. 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
informed
risk mitigation
application gateway
stateful inspection
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
ping flooding
10base2
49 -152 - 65 -535
content filter
10. IDS response method using logging and notification
passive
cat5
teardrop
session hijacking
11. An application layer gateway works at this layer of the OSI model
ARP
application
packet filter
IP spoofing
12. One device per network segment - does not use local system resources - can't examine encrypted traffic - OS independent - less expensive
port address translation
0 - 1023
NIDS
cat3
13. A decoy system - intentionally left exposed to attract/distract attackers - logs and monitors attacker activities
IP spoofing
session hijacking
ARP poisoning
honeypot
14. When a hacker takes over a TCP session between two machines - also known as session hijacking - foiled by the use of encrypted sessions
cat5
ARP poisoning
tcp/ip hijacking
switch
15. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other
promiscuous
spoofing attacks
man in the middle
risk mitigation
16. Allows all traffic except traffic that is specifically denied - also known as permissive access
spoofing attacks
dynamic NAT
PBX (Private Branch Exchange)
allow by default
17. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet
layered
port
router
stateful inspection
18. Level 2 firewall often used to filter web traffic
zone transfer
proxy
smurf
IP spoofing
19. Cable with copper core - has no physical transmission security and is easy to tap - 10mbps - maximum length 500 meters
proxy
allow by default
blind
coaxial
20. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice
cat5
deny by default
PBX (Private Branch Exchange)
replay
21. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets
port
HIDS
packet filter
screened host
22. A person or program masquerades as another by presenting false information to gain an illegitimate advantage
broadcast domain
network
stateful inspection
spoofing
23. Two authoritative sources for your domain namespace with differing contents depending on whether the query is internal or external
DNS spoofing
split horizon DNS
proxy server
private
24. Crashing a computer by sending oversized packets (over 64 bytes) that it doesn't know how to handle
tcp/ip hijacking
screened host
ping of death
content filter
25. Seeks to reduce the probability and/or impact of a specific risk below an acceptable threshold
risk mitigation
session hijacking
allow by default
ARP
26. Firewall with two NICs - one internal and one external facing - NAT is often used with this firewall
DMZ
ping of death
dual homed
10Base5
27. Acts as an organizations internal phone system
firewalls
NIDS network connections
PBX (Private Branch Exchange)
stateful inspection
28. 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
store and forward
cat5
ping of death
DMZ
29. Amplifies the signal of incoming packets before broadcasting them to the network
NIDS
repeater
application gateway
spoofing attacks
30. Examines a entire packet and determines action based on a complex set of rules
IP spoofing
application gateway
website spoofing
blind
31. Firewall with several NICs connected to different networks
ping of death
defense in depth
multi homed
stateful inspection
32. 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
VLAN
content filter
tcp/ip hijacking
man in the middle
33. IP spoofing attack where the attacker can monitor packets and participate in bidirectional communication
informed
screened subnet
firewall architectures
router
34. Bbenign activity reported as malicious
content filter
application gateway
false positive
ARP
35. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x
private
0 - 1023
DMZ
active
36. Evolved from IDS - monitors network traffic - detects and responds to attack on network
false positive
stateful inspection
10Base5
NIPS
37. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address
allow by default
smurf
subnet
ping of death
38. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system
knowledge based
IP spoofing
man in the middle and replay
0 - 1023
39. Attempt to block service or reduce activity by overloading the victim machine with ping requests
proxy
switch
cat5
ping flooding
40. Forging an IP address with the address of a trusted host
firewalls
IP spoofing
split horizon DNS
switch
41. An attack where an attacker captures sensitive information and sends it again later in an attempt to replicate the transaction
replay
land attack
man in the middle and replay
passive
42. A physical or logical subnetwork that houses systems accessible to a larger untrusted network - usually the Internet - also known as DMZ
screened subnet
ping of death
static NAT
defense in depth
43. Monitors network traffic to identify possible attacks
NIDS
static NAT
null session
switch
44. 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
HIDS
NIPS
honeynet
stateful inspection
45. 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
teardrop
man in the middle and replay
switch
fraggle
46. A flaw in TCP/IP to verify that a packet really comes from the addess indicated in the IP header leads to this attack
IP spoofing
SYN flood
application gateway
spoofing attacks
47. A pool of public IP addresses is shared by a collection of private IP addresses
replay
bastion host
dynamic NAT
IP spoofing
48. Connects devices together to form a subnet - packet forwarding is based on MAC addresses - works at the data link layer of the OSI
switch
informed
behavior based
spoofing attacks
49. Known as thicknet - 10mbps - limited to 500 meters
switch
passive
0 - 1023
10Base5
50. Unauthenticated connections - creating the potential for a successful connection as an anonymous user
encrypt session key
static NAT
null session
content filter