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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. Man in the middle attack where the attacker captures the traffic and sends it to the original recipient without altering the intercepted data
passive
content filter
replay
HIDS
2. Packet filtering - proxies - stateful inspection
firewalls
screened host
null session
DNS spoofing
3. Multiple network defense components are placed throughout the organizations assets and the network is properly segmented
defense in depth
allow by default
subnet
IP spoofing
4. Twisted pair cable with speed capability of 10Mbps
session hijacking
replay
cat3
bastion host
5. A locked down/hardened host on the public side of the firewall highly exposed to attacks (i.e. web server - email server)
zone transfer
bastion host
application
tcp/ip hijacking
6. Used to pass data from one VLAN to another
spoofing attacks
router
active
ping of death
7. Known as thinnet - 10mbps - limited to 185 meters
proxy
stateful inspection
10base2
extranet
8. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x
coaxial
private
10Base5
broadcast domain
9. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets
deny by default
packet filter
ping flooding
layered
10. A complete transfer of all DNS zone information from one server to another
10Base5
zone transfer
ARP poisoning
null session
11. Malicious insiders - connections that bypass the firewall (i.e. IM) - encrypted traffic/tunneling - social engineering - physical access are missed by ___________
firewalls
null session
passive
store and forward
12. IDS response method using logging and notification
passive
smurf
split horizon DNS
10Base5
13. One device per network segment - does not use local system resources - can't examine encrypted traffic - OS independent - less expensive
49 -152 - 65 -535
dual homed
twisted pair
NIDS
14. A sniffer mode used to capture traffic addressed to/from another machine on the network
proxy
network
promiscuous
fiber optic
15. User / registered ports
1024 - 49 -151
port address translation
zone transfer
knowledge based
16. Allows all traffic except traffic that is specifically denied - also known as permissive access
smurf
blind
stateful inspection
allow by default
17. 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
IP spoofing
port
zone transfer
18. 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
null session
VLAN
tcp/ip hijacking
DoS attacks
19. 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
informed
honeypot
switch
20. Session hijacking countermeasure
1024 - 49 -151
passive
encrypt session key
stateful inspection
21. 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
protocol
DNS spoofing
broadcast domain
screened host
22. IDS that relies on usage patterns and baseline operation - can ID new vulnerability - high rate of false alarms
DNS spoofing
behavior based
deny by default
hub
23. Dynamic / private ports
passive
49 -152 - 65 -535
bastion host
dual homed
24. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system
tcp/ip hijacking
protocol
NIDS
IP spoofing
25. An application layer gateway works at this layer of the OSI model
application
deny by default
teardrop
protocol analyzer
26. Bbenign activity reported as malicious
screened host
dynamic NAT
false positive
IP spoofing
27. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets
active
encrypt session key
SYN flood
hub
28. Bastion host - dual homed firewall - multi homed firewall - screened host - screened subnet
firewall architectures
NIPS
man in the middle
coaxial
29. IPS response method - terminate process/session - block/reject and redirect network traffic
active
ping of death
twisted pair
passive
30. Web servers - FTP servers - DNS servers - mail servers should be located on the _____________
coaxial
DMZ
application
10base2
31. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet
layered
allow by default
1024 - 49 -151
blind
32. An attacker redirects valid request to malicious sites by feeding a DNS server altered records which are retained in its cache
ping of death
null session
DNS spoofing
smurf
33. Amplifies the signal of incoming packets before broadcasting them to the network
repeater
10base2
promiscuous
DMZ
34. IDS that relies on the identification of known attack signatures
knowledge based
0 - 1023
proxy
teardrop
35. 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
stateful inspection
port address translation
store and forward
application gateway
36. Ping flooding - ping of death - smurf - fraggle - SYN flood - land - teardrop - email flood
cat3
SYN flood
DoS attacks
defense in depth
37. Attempt to block service or reduce activity by overloading the victim machine with ping requests
teardrop
ping flooding
website spoofing
man in the middle
38. Firewall with two NICs - one internal and one external facing - NAT is often used with this firewall
dual homed
ping flooding
store and forward
layered
39. Forging an IP address with the address of a trusted host
smurf
application
replay
IP spoofing
40. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice
network
cat5
fraggle
deny by default
41. Generate random TCP sequence numbers and encrypt traffic countermeasure what attacks
man in the middle and replay
ARP
network
cat5
42. Connects devices together to form a subnet - broadcasts incoming packets to all devices
informed
ARP
store and forward
hub
43. Firewall that communicates directly with a perimeter router and the internal network - 2 NICs - screens internal traffic
ARP poisoning
coaxial
screened host
NIDS
44. Man in the middle attack where the content of an intercepted message is altered before it is sent on
stateful inspection
active
private
coaxial
45. 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
10base2
IP spoofing
teardrop
session hijacking
46. Protocol used to map an known IP address to its corresponding media access control (MAC) address
bastion host
ARP
proxy server
subnet
47. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other
risk mitigation
session hijacking
man in the middle
deny by default
48. Connects two or more subnets - determines the best path to forward packets based on packet header and forwarding table information
1024 - 49 -151
router
NIDS network connections
promiscuous
49. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall
0 - 1023
encrypt session key
SYN flood
multiple interface firewall
50. A variation of a smurf attack using UDP
session hijacking
NIPS
fraggle
honeynet