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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. Crashing a computer by sending oversized packets (over 64 bytes) that it doesn't know how to handle
ping of death
protocol
active
IP spoofing
2. A sniffer mode used to capture traffic addressed to/from another machine on the network
ARP
coaxial
promiscuous
router
3. Forging an IP address with the address of a trusted host
NIDS
application
website spoofing
IP spoofing
4. Malicious insiders - connections that bypass the firewall (i.e. IM) - encrypted traffic/tunneling - social engineering - physical access are missed by ___________
man in the middle and replay
repeater
10base2
firewalls
5. IDS that relies on usage patterns and baseline operation - can ID new vulnerability - high rate of false alarms
twisted pair
smurf
teardrop
behavior based
6. An attacker redirects traffic by falsifying the IP address requested by ARP request
ping flooding
IP spoofing
ARP poisoning
screened host
7. Examines a entire packet and determines action based on a complex set of rules
null session
application gateway
firewalls
risk mitigation
8. A server that sits between an intranet and it's Internet connection - masking all IP addresses
teardrop
firewalls
proxy server
firewalls
9. A logical connection point allowing computers and software to communicate and exchange data
cat5
broadcast domain
session hijacking
port
10. Packet filtering - proxies - stateful inspection
firewalls
application gateway
10Base5
replay
11. A physical or logical subnetwork that houses systems accessible to a larger untrusted network - usually the Internet - also known as DMZ
1024 - 49 -151
screened subnet
private
VLAN
12. IP - email - website - DNS - and ARP
fiber optic
0 - 1023
spoofing attacks
application
13. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other
website spoofing
man in the middle
proxy
fiber optic
14. Amplifies the signal of incoming packets before broadcasting them to the network
behavior based
HIDS
DoS attacks
repeater
15. Used to pass data from one VLAN to another
router
NIDS network connections
fiber optic
content filter
16. 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
cat5
store and forward
teardrop
NIPS
17. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets
man in the middle and replay
SYN flood
source - destination - protocol
null session
18. Generate random TCP sequence numbers and encrypt traffic countermeasure what attacks
twisted pair
multiple interface firewall
man in the middle and replay
application
19. IP spoofing attack where the attacker can only send packets and has to guess about replies
blind
10base2
man in the middle and replay
smurf
20. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice
protocol analyzer
passive
split horizon DNS
deny by default
21. Two authoritative sources for your domain namespace with differing contents depending on whether the query is internal or external
NIDS
false negative
packet filter
split horizon DNS
22. IP spoofing attack where the attacker can monitor packets and participate in bidirectional communication
network
informed
fraggle
coaxial
23. Connects two or more subnets - determines the best path to forward packets based on packet header and forwarding table information
land attack
switch
tcp/ip hijacking
router
24. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer
man in the middle and replay
cat3
protocol analyzer
smurf
25. IDS that relies on the identification of known attack signatures
man in the middle and replay
passive
multiple interface firewall
knowledge based
26. Web servers - FTP servers - DNS servers - mail servers should be located on the _____________
DMZ
smurf
stateful inspection
49 -152 - 65 -535
27. A pool of public IP addresses is shared by a collection of private IP addresses
dynamic NAT
NIDS network connections
deny by default
bastion host
28. A packet filtering firewall works at this layer of the OSI model
multi homed
honeypot
encrypt session key
network
29. Most common DMZ implementation using three firewall interfaces (internet - intranet - DMZ)
VLAN
application
multiple interface firewall
application gateway
30. Bbenign activity reported as malicious
land attack
false positive
NIDS network connections
port address translation
31. Twisted pair cable with speed capability of 1Gbps
false negative
proxy server
cat5
coaxial
32. Known as thinnet - 10mbps - limited to 185 meters
10base2
proxy
screened subnet
DoS attacks
33. Twisted pair cable with speed capability of 10Mbps
PBX (Private Branch Exchange)
firewall architectures
cat3
blind
34. 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
IP spoofing
extranet
router
stateful inspection
35. 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
application gateway
IP spoofing
fraggle
broadcast domain
36. An application layer gateway works at this layer of the OSI model
risk mitigation
fiber optic
application
dual homed
37. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets
DMZ
port
screened host
packet filter
38. A person or program masquerades as another by presenting false information to gain an illegitimate advantage
ARP
spoofing
null session
multi homed
39. Ping flooding - ping of death - smurf - fraggle - SYN flood - land - teardrop - email flood
DoS attacks
dual homed
network
defense in depth
40. Malicious activity not reported or detected
encrypt session key
protocol
false negative
smurf
41. Examines content passing through and makes a decision on the data based on a set of criteria - normal uses email filtering and web browsing
content filter
smurf
SYN flood
firewall architectures
42. An attack where an attacker captures sensitive information and sends it again later in an attempt to replicate the transaction
1024 - 49 -151
NIDS network connections
application gateway
replay
43. A complete transfer of all DNS zone information from one server to another
0 - 1023
subnet
store and forward
zone transfer
44. Attempt to block service or reduce activity by overloading the victim machine with ping requests
content filter
ping flooding
twisted pair
honeypot
45. A variation of a smurf attack using UDP
HIDS
fraggle
stateful inspection
honeypot
46. Monitors network traffic to identify possible attacks
knowledge based
NIDS
multi homed
screened subnet
47. A flaw in TCP/IP to verify that a packet really comes from the addess indicated in the IP header leads to this attack
application gateway
knowledge based
IP spoofing
10base2
48. Used by ISPs - single public network IP address is shared among many hosts on a private network - also known as PAT
multiple interface firewall
port address translation
replay
stateful inspection
49. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x
0 - 1023
VLAN
private
firewall architectures
50. A feature of firewalls / routers that disguise the IP address of internal systems allowing connection to the Internet using one public address
broadcast domain
man in the middle and replay
NAT
IP spoofing