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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. IDS response method using logging and notification
teardrop
proxy server
passive
private
2. IPS response method - terminate process/session - block/reject and redirect network traffic
cat3
ping flooding
source - destination - protocol
active
3. A variation of a smurf attack using UDP
packet filter
fraggle
zone transfer
application gateway
4. Firewall that intercepts and inspects messages before delivering them - placed between trusted and untrusted networks - degrade network traffic - also know as application gateway
DoS attacks
extranet
deny by default
proxy
5. An attacker redirects traffic by falsifying the IP address requested by ARP request
port
0 - 1023
ARP poisoning
NIPS
6. A logical connection point allowing computers and software to communicate and exchange data
port
passive
subnet
spoofing
7. Examines a entire packet and determines action based on a complex set of rules
allow by default
application gateway
dual homed
tcp/ip hijacking
8. A physical or logical subnetwork that houses systems accessible to a larger untrusted network - usually the Internet - also known as DMZ
private
port
screened host
screened subnet
9. A feature of firewalls / routers that disguise the IP address of internal systems allowing connection to the Internet using one public address
NAT
replay
deny by default
repeater
10. Known as thinnet - 10mbps - limited to 185 meters
NAT
10base2
static NAT
router
11. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system
risk mitigation
promiscuous
IP spoofing
deny by default
12. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x
private
false negative
NIPS
router
13. Amplifies the signal of incoming packets before broadcasting them to the network
repeater
spoofing attacks
static NAT
firewall architectures
14. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer
firewall architectures
active
IP spoofing
protocol analyzer
15. Head of a packet contains...
source - destination - protocol
IP spoofing
teardrop
static NAT
16. A decoy system - intentionally left exposed to attract/distract attackers - logs and monitors attacker activities
smurf
firewalls
honeypot
dynamic NAT
17. Collection on honeypots
application
honeynet
firewall architectures
ping flooding
18. An attacker redirects valid request to malicious sites by feeding a DNS server altered records which are retained in its cache
port
DNS spoofing
port address translation
DMZ
19. Network configuration that permits selected outsiders access internal information systems
smurf
deny by default
extranet
protocol
20. Man in the middle attack where the attacker captures the traffic and sends it to the original recipient without altering the intercepted data
IP spoofing
firewall architectures
hub
passive
21. Web servers - FTP servers - DNS servers - mail servers should be located on the _____________
port
passive
repeater
DMZ
22. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system
behavior based
proxy
NIDS network connections
switch
23. Unauthenticated connections - creating the potential for a successful connection as an anonymous user
zone transfer
DMZ
active
null session
24. Twisted pair cable with speed capability of 1Gbps
IP spoofing
cat5
man in the middle
switch
25. Malicious activity not reported or detected
false negative
ping flooding
active
HIDS
26. Forging an IP address with the address of a trusted host
teardrop
NIDS
proxy server
IP spoofing
27. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice
deny by default
NIDS
stateful inspection
behavior based
28. IP - email - website - DNS - and ARP
null session
stateful inspection
spoofing attacks
subnet
29. 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
stateful inspection
port
deny by default
application
30. Variation of the SYN flood where SYN packets are spoofed to have the same source and destination IP address and port
fraggle
split horizon DNS
bastion host
land attack
31. A server that sits between an intranet and it's Internet connection - masking all IP addresses
blind
proxy server
deny by default
split horizon DNS
32. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets
router
DNS spoofing
IP spoofing
packet filter
33. Firewall with two NICs - one internal and one external facing - NAT is often used with this firewall
DNS spoofing
teardrop
informed
dual homed
34. Most common DMZ implementation using three firewall interfaces (internet - intranet - DMZ)
subnet
multiple interface firewall
defense in depth
firewalls
35. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets
SYN flood
ARP
10base2
screened host
36. IDS that relies on the identification of known attack signatures
IP spoofing
passive
store and forward
knowledge based
37. Firewall with several NICs connected to different networks
router
multi homed
active
encrypt session key
38. When a hacker takes over a TCP session between two machines - also known as session hijacking - foiled by the use of encrypted sessions
packet filter
tcp/ip hijacking
split horizon DNS
teardrop
39. 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
blind
smurf
1024 - 49 -151
switch
40. User / registered ports
layered
SYN flood
informed
1024 - 49 -151
41. An application layer gateway works at this layer of the OSI model
VLAN
twisted pair
application
behavior based
42. A flaw in TCP/IP to verify that a packet really comes from the addess indicated in the IP header leads to this attack
replay
NAT
store and forward
IP spoofing
43. Bastion host - dual homed firewall - multi homed firewall - screened host - screened subnet
router
ping flooding
ARP poisoning
firewall architectures
44. 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
content filter
teardrop
firewall architectures
switch
45. One private IP address is mapped to one public IP address
deny by default
static NAT
SYN flood
spoofing
46. Packet filtering - proxies - stateful inspection
stateful inspection
application gateway
IP spoofing
firewalls
47. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other
dynamic NAT
fiber optic
man in the middle and replay
man in the middle
48. A sniffer mode used to capture traffic addressed to/from another machine on the network
proxy
defense in depth
promiscuous
dynamic NAT
49. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall
0 - 1023
cat5
promiscuous
fraggle
50. Seeks to reduce the probability and/or impact of a specific risk below an acceptable threshold
risk mitigation
NIDS
active
private