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Test your basic knowledge |
Comptia Security +: Network Security
Start Test
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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. Bbenign activity reported as malicious
bastion host
replay
1024 - 49 -151
false positive
2. When a hacker takes over a TCP session between two machines - also known as session hijacking - foiled by the use of encrypted sessions
protocol
application gateway
tcp/ip hijacking
coaxial
3. Firewall that communicates directly with a perimeter router and the internal network - 2 NICs - screens internal traffic
10Base5
PBX (Private Branch Exchange)
application gateway
screened host
4. Session hijacking countermeasure
multiple interface firewall
encrypt session key
defense in depth
ping flooding
5. Forging an IP address with the address of a trusted host
smurf
SYN flood
proxy server
IP spoofing
6. Head of a packet contains...
allow by default
passive
source - destination - protocol
SYN flood
7. Web servers - FTP servers - DNS servers - mail servers should be located on the _____________
NIDS
IP spoofing
NAT
DMZ
8. A variation of a smurf attack using UDP
application gateway
defense in depth
fraggle
fiber optic
9. 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
man in the middle and replay
layered
smurf
ping of death
10. Firewall with two NICs - one internal and one external facing - NAT is often used with this firewall
multiple interface firewall
VLAN
dual homed
SYN flood
11. IP spoofing attack where the attacker can only send packets and has to guess about replies
land attack
0 - 1023
blind
fiber optic
12. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet
fraggle
layered
cat3
packet filter
13. Most common DMZ implementation using three firewall interfaces (internet - intranet - DMZ)
multiple interface firewall
application gateway
SYN flood
store and forward
14. Level 2 firewall often used to filter web traffic
encrypt session key
promiscuous
passive
proxy
15. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets
NIPS
man in the middle
SYN flood
blind
16. A feature of firewalls / routers that disguise the IP address of internal systems allowing connection to the Internet using one public address
knowledge based
website spoofing
NAT
proxy server
17. 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
ARP
store and forward
replay
layered
18. A packet filtering firewall works at this layer of the OSI model
tcp/ip hijacking
active
network
allow by default
19. Connects two or more subnets - determines the best path to forward packets based on packet header and forwarding table information
store and forward
1024 - 49 -151
content filter
router
20. Creating a illegitimate website with the intention of convincing victims that they are visiting a legitimate site - typically to collect confidential information
packet filter
multiple interface firewall
active
website spoofing
21. 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
honeynet
private
packet filter
22. A physical or logical subnetwork that houses systems accessible to a larger untrusted network - usually the Internet - also known as DMZ
screened subnet
ping of death
hub
firewall architectures
23. Evolved from IDS - monitors network traffic - detects and responds to attack on network
router
NIPS
active
twisted pair
24. IDS that relies on usage patterns and baseline operation - can ID new vulnerability - high rate of false alarms
dynamic NAT
stateful inspection
replay
behavior based
25. A complete transfer of all DNS zone information from one server to another
behavior based
cat5
subnet
zone transfer
26. 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
packet filter
multiple interface firewall
smurf
stateful inspection
27. Connects devices together to form a subnet - broadcasts incoming packets to all devices
hub
router
false negative
firewalls
28. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system
NIDS
0 - 1023
IP spoofing
protocol
29. Unauthenticated connections - creating the potential for a successful connection as an anonymous user
10base2
active
null session
hub
30. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall
IP spoofing
land attack
stateful inspection
0 - 1023
31. Examines a entire packet and determines action based on a complex set of rules
application gateway
router
risk mitigation
ARP
32. Man in the middle attack where the content of an intercepted message is altered before it is sent on
false positive
10base2
active
stateful inspection
33. Unauthenticated Windows session where an attacker can gather list of users - groups - machines - shares - user and host SID
false positive
null session
private
honeynet
34. 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
informed
private
VLAN
spoofing
35. Twisted pair cable with speed capability of 10Mbps
passive
false positive
cat3
spoofing attacks
36. Connects devices together to form a subnet - packet forwarding is based on MAC addresses - works at the data link layer of the OSI
blind
subnet
store and forward
switch
37. A locked down/hardened host on the public side of the firewall highly exposed to attacks (i.e. web server - email server)
honeynet
multi homed
bastion host
content filter
38. Malicious activity not reported or detected
ping of death
firewalls
informed
false negative
39. A flaw in TCP/IP to verify that a packet really comes from the addess indicated in the IP header leads to this attack
HIDS
PBX (Private Branch Exchange)
informed
IP spoofing
40. A person or program masquerades as another by presenting false information to gain an illegitimate advantage
spoofing
website spoofing
coaxial
stateful inspection
41. Acts as an organizations internal phone system
informed
ping of death
PBX (Private Branch Exchange)
promiscuous
42. Ping flooding - ping of death - smurf - fraggle - SYN flood - land - teardrop - email flood
protocol analyzer
DoS attacks
zone transfer
active
43. Variation of the SYN flood where SYN packets are spoofed to have the same source and destination IP address and port
content filter
land attack
proxy
stateful inspection
44. One private IP address is mapped to one public IP address
active
static NAT
passive
ARP
45. Used to pass data from one VLAN to another
NIDS network connections
router
allow by default
NIPS
46. Protocol used to map an known IP address to its corresponding media access control (MAC) address
ARP
HIDS
router
layered
47. Dynamic / private ports
10Base5
firewalls
proxy
49 -152 - 65 -535
48. 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
broadcast domain
bastion host
firewalls
IP spoofing
49. Cable designed for transmission at higher speeds (100Mbps - 2Gbps) and longer distances (2km) - expensive -eliminates signal tapping
fiber optic
replay
ARP poisoning
twisted pair
50. Firewall with several NICs connected to different networks
layered
content filter
multi homed
knowledge based
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