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Test your basic knowledge |
Comptia Security +: Network Security
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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. Firewall that intercepts and inspects messages before delivering them - placed between trusted and untrusted networks - degrade network traffic - also know as application gateway
proxy
defense in depth
IP spoofing
dual homed
2. A locked down/hardened host on the public side of the firewall highly exposed to attacks (i.e. web server - email server)
HIDS
port
source - destination - protocol
bastion host
3. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets
router
proxy
SYN flood
application
4. 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
split horizon DNS
zone transfer
stateful inspection
layered
5. Multiple network defense components are placed throughout the organizations assets and the network is properly segmented
cat5
fiber optic
defense in depth
honeynet
6. Used to pass data from one VLAN to another
router
ping flooding
allow by default
extranet
7. Known as thicknet - 10mbps - limited to 500 meters
static NAT
coaxial
behavior based
10Base5
8. Most common DMZ implementation using three firewall interfaces (internet - intranet - DMZ)
multiple interface firewall
router
stateful inspection
broadcast domain
9. Malicious activity not reported or detected
false negative
deny by default
ARP
man in the middle
10. Head of a packet contains...
10base2
broadcast domain
source - destination - protocol
dynamic NAT
11. Amplifies the signal of incoming packets before broadcasting them to the network
website spoofing
layered
null session
repeater
12. Protocol used to map an known IP address to its corresponding media access control (MAC) address
ARP
layered
defense in depth
passive
13. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system
behavior based
false positive
IP spoofing
ping flooding
14. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address
subnet
fiber optic
active
VLAN
15. A set of rules computers use to communicate with each other across a network
firewalls
1024 - 49 -151
protocol
NAT
16. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice
honeypot
deny by default
null session
fraggle
17. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets
land attack
NAT
passive
packet filter
18. Firewall with several NICs connected to different networks
multi homed
proxy
NAT
private
19. A person or program masquerades as another by presenting false information to gain an illegitimate advantage
spoofing attacks
spoofing
protocol
session hijacking
20. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet
switch
layered
coaxial
hub
21. An attack where an attacker captures sensitive information and sends it again later in an attempt to replicate the transaction
blind
replay
source - destination - protocol
screened host
22. Seeks to reduce the probability and/or impact of a specific risk below an acceptable threshold
replay
encrypt session key
IP spoofing
risk mitigation
23. IP - email - website - DNS - and ARP
spoofing attacks
session hijacking
proxy
behavior based
24. Acts as an organizations internal phone system
49 -152 - 65 -535
extranet
PBX (Private Branch Exchange)
ARP poisoning
25. IDS response method using logging and notification
passive
HIDS
fiber optic
repeater
26. Twisted pair cable with speed capability of 1Gbps
promiscuous
cat5
subnet
teardrop
27. Crashing a computer by sending oversized packets (over 64 bytes) that it doesn't know how to handle
10Base5
ping of death
SYN flood
store and forward
28. Twisted pair cable with speed capability of 10Mbps
cat3
split horizon DNS
honeynet
10base2
29. Connects devices together to form a subnet - broadcasts incoming packets to all devices
subnet
hub
router
cat3
30. Unauthenticated connections - creating the potential for a successful connection as an anonymous user
ARP
null session
proxy server
stateful inspection
31. 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
session hijacking
49 -152 - 65 -535
1024 - 49 -151
cat5
32. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system
IP spoofing
NIDS network connections
firewalls
blind
33. 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
HIDS
application gateway
protocol analyzer
VLAN
34. 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
NIDS
smurf
0 - 1023
twisted pair
35. Cable used most in networks - maximum speed 1Gbps - maximum length 100 meters - susceptible to tap
cat3
twisted pair
router
proxy server
36. Monitors network traffic to identify possible attacks
VLAN
risk mitigation
screened host
NIDS
37. An application layer gateway works at this layer of the OSI model
application
source - destination - protocol
honeypot
DMZ
38. Malicious insiders - connections that bypass the firewall (i.e. IM) - encrypted traffic/tunneling - social engineering - physical access are missed by ___________
NIDS network connections
firewalls
firewall architectures
man in the middle
39. A sniffer mode used to capture traffic addressed to/from another machine on the network
NIDS network connections
promiscuous
PBX (Private Branch Exchange)
ARP
40. Two authoritative sources for your domain namespace with differing contents depending on whether the query is internal or external
firewalls
NAT
ping of death
split horizon DNS
41. A pool of public IP addresses is shared by a collection of private IP addresses
application
port
dynamic NAT
static NAT
42. A physical or logical subnetwork that houses systems accessible to a larger untrusted network - usually the Internet - also known as DMZ
false positive
split horizon DNS
screened subnet
private
43. When a hacker takes over a TCP session between two machines - also known as session hijacking - foiled by the use of encrypted sessions
false negative
man in the middle
cat5
tcp/ip hijacking
44. Cable designed for transmission at higher speeds (100Mbps - 2Gbps) and longer distances (2km) - expensive -eliminates signal tapping
fiber optic
router
tcp/ip hijacking
10base2
45. Known as thinnet - 10mbps - limited to 185 meters
SYN flood
website spoofing
network
10base2
46. Firewall that communicates directly with a perimeter router and the internal network - 2 NICs - screens internal traffic
store and forward
IP spoofing
ARP
screened host
47. Network configuration that permits selected outsiders access internal information systems
tcp/ip hijacking
NIPS
extranet
dual homed
48. Evolved from IDS - monitors network traffic - detects and responds to attack on network
application
NIPS
twisted pair
screened subnet
49. User / registered ports
1024 - 49 -151
honeynet
informed
firewall architectures
50. Firewall with two NICs - one internal and one external facing - NAT is often used with this firewall
ARP
IP spoofing
screened subnet
dual homed
Can you answer 50 questions in 15 minutes?
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