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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. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x
router
private
null session
NAT
2. Examines a entire packet and determines action based on a complex set of rules
application gateway
tcp/ip hijacking
NIPS
NIDS
3. A logical connection point allowing computers and software to communicate and exchange data
split horizon DNS
hub
port
1024 - 49 -151
4. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other
man in the middle
network
firewalls
content filter
5. 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
49 -152 - 65 -535
broadcast domain
dynamic NAT
IP spoofing
6. 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
risk mitigation
session hijacking
active
blind
7. A variation of a smurf attack using UDP
fraggle
null session
cat5
10Base5
8. IDS response method using logging and notification
DoS attacks
HIDS
passive
DNS spoofing
9. Unauthenticated Windows session where an attacker can gather list of users - groups - machines - shares - user and host SID
null session
honeynet
cat5
firewall architectures
10. Used by ISPs - single public network IP address is shared among many hosts on a private network - also known as PAT
port address translation
private
teardrop
port
11. Known as thicknet - 10mbps - limited to 500 meters
SYN flood
10Base5
49 -152 - 65 -535
null session
12. Most common DMZ implementation using three firewall interfaces (internet - intranet - DMZ)
zone transfer
bastion host
multiple interface firewall
promiscuous
13. Evolved from IDS - monitors network traffic - detects and responds to attack on network
NIDS
dynamic NAT
NIPS
teardrop
14. IP spoofing attack where the attacker can monitor packets and participate in bidirectional communication
informed
promiscuous
SYN flood
DMZ
15. One process on every system - use local system resources - detect attacks that NIDS misses - examine data after decrypted - can be OS specific - more expensive
ping flooding
HIDS
spoofing
layered
16. A decoy system - intentionally left exposed to attract/distract attackers - logs and monitors attacker activities
split horizon DNS
repeater
honeypot
firewall architectures
17. Amplifies the signal of incoming packets before broadcasting them to the network
spoofing attacks
application
layered
repeater
18. A feature of firewalls / routers that disguise the IP address of internal systems allowing connection to the Internet using one public address
split horizon DNS
49 -152 - 65 -535
NAT
DMZ
19. Man in the middle attack where the content of an intercepted message is altered before it is sent on
passive
static NAT
active
NIDS
20. Examines content passing through and makes a decision on the data based on a set of criteria - normal uses email filtering and web browsing
packet filter
IP spoofing
content filter
risk mitigation
21. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets
packet filter
replay
DNS spoofing
man in the middle
22. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system
proxy
passive
cat5
IP spoofing
23. An attacker redirects valid request to malicious sites by feeding a DNS server altered records which are retained in its cache
DNS spoofing
stateful inspection
DoS attacks
tcp/ip hijacking
24. Session hijacking countermeasure
49 -152 - 65 -535
encrypt session key
content filter
application gateway
25. Head of a packet contains...
source - destination - protocol
deny by default
ARP poisoning
allow by default
26. Level 2 firewall often used to filter web traffic
VLAN
fiber optic
firewall architectures
proxy
27. IPS response method - terminate process/session - block/reject and redirect network traffic
twisted pair
DNS spoofing
packet filter
active
28. Ping flooding - ping of death - smurf - fraggle - SYN flood - land - teardrop - email flood
extranet
zone transfer
repeater
DoS attacks
29. One private IP address is mapped to one public IP address
allow by default
ping flooding
proxy server
static NAT
30. A complete transfer of all DNS zone information from one server to another
SYN flood
tcp/ip hijacking
knowledge based
zone transfer
31. Generate random TCP sequence numbers and encrypt traffic countermeasure what attacks
tcp/ip hijacking
application
multi homed
man in the middle and replay
32. 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
broadcast domain
NIDS network connections
stateful inspection
repeater
33. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet
layered
blind
twisted pair
broadcast domain
34. IDS that relies on the identification of known attack signatures
smurf
IP spoofing
passive
knowledge based
35. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address
NAT
active
encrypt session key
subnet
36. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system
multi homed
twisted pair
split horizon DNS
NIDS network connections
37. IDS that relies on usage patterns and baseline operation - can ID new vulnerability - high rate of false alarms
land attack
behavior based
network
SYN flood
38. Cable used most in networks - maximum speed 1Gbps - maximum length 100 meters - susceptible to tap
dual homed
promiscuous
twisted pair
man in the middle and replay
39. Firewall that communicates directly with a perimeter router and the internal network - 2 NICs - screens internal traffic
bastion host
packet filter
passive
screened host
40. A packet filtering firewall works at this layer of the OSI model
network
private
deny by default
HIDS
41. A set of rules computers use to communicate with each other across a network
protocol analyzer
protocol
dynamic NAT
cat3
42. Web servers - FTP servers - DNS servers - mail servers should be located on the _____________
DMZ
broadcast domain
replay
bastion host
43. Creating a illegitimate website with the intention of convincing victims that they are visiting a legitimate site - typically to collect confidential information
NIDS
DoS attacks
website spoofing
encrypt session key
44. 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
smurf
zone transfer
false positive
static NAT
45. Malicious activity not reported or detected
false negative
firewall architectures
proxy
stateful inspection
46. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer
router
DoS attacks
protocol analyzer
honeypot
47. Firewall with several NICs connected to different networks
twisted pair
multi homed
screened host
spoofing attacks
48. Used to pass data from one VLAN to another
port
NAT
twisted pair
router
49. 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
passive
0 - 1023
stateful inspection
switch
50. A server that sits between an intranet and it's Internet connection - masking all IP addresses
0 - 1023
coaxial
proxy server
port address translation