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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. Examines a entire packet and determines action based on a complex set of rules
teardrop
router
dual homed
application gateway
2. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall
coaxial
active
10Base5
0 - 1023
3. Bastion host - dual homed firewall - multi homed firewall - screened host - screened subnet
risk mitigation
firewalls
application gateway
firewall architectures
4. A variation of a smurf attack using UDP
zone transfer
informed
VLAN
fraggle
5. Used to pass data from one VLAN to another
49 -152 - 65 -535
router
ARP
split horizon DNS
6. Attempt to block service or reduce activity by overloading the victim machine with ping requests
protocol analyzer
ping flooding
knowledge based
NIPS
7. Twisted pair cable with speed capability of 1Gbps
cat5
multi homed
split horizon DNS
extranet
8. Multiple network defense components are placed throughout the organizations assets and the network is properly segmented
multiple interface firewall
fraggle
defense in depth
null session
9. Level 2 firewall often used to filter web traffic
proxy
switch
zone transfer
firewalls
10. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice
risk mitigation
stateful inspection
deny by default
DNS spoofing
11. Variation of the SYN flood where SYN packets are spoofed to have the same source and destination IP address and port
land attack
proxy server
screened subnet
proxy
12. A set of rules computers use to communicate with each other across a network
teardrop
49 -152 - 65 -535
defense in depth
protocol
13. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x
null session
private
multi homed
man in the middle
14. Monitors network traffic to identify possible attacks
firewall architectures
subnet
NIDS
stateful inspection
15. An attacker redirects valid request to malicious sites by feeding a DNS server altered records which are retained in its cache
hub
DNS spoofing
NIPS
false negative
16. Packet filtering - proxies - stateful inspection
active
firewalls
replay
knowledge based
17. IDS response method using logging and notification
49 -152 - 65 -535
knowledge based
passive
risk mitigation
18. A packet filtering firewall works at this layer of the OSI model
honeypot
network
0 - 1023
defense in depth
19. Firewall that communicates directly with a perimeter router and the internal network - 2 NICs - screens internal traffic
cat3
10Base5
active
screened host
20. Cable designed for transmission at higher speeds (100Mbps - 2Gbps) and longer distances (2km) - expensive -eliminates signal tapping
cat5
fiber optic
subnet
repeater
21. 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
screened subnet
broadcast domain
cat5
VLAN
22. IDS that relies on the identification of known attack signatures
knowledge based
promiscuous
encrypt session key
false negative
23. User / registered ports
man in the middle
1024 - 49 -151
firewalls
proxy
24. Collection on honeypots
honeynet
10Base5
multi homed
allow by default
25. A pool of public IP addresses is shared by a collection of private IP addresses
promiscuous
port address translation
HIDS
dynamic NAT
26. IPS response method - terminate process/session - block/reject and redirect network traffic
false positive
proxy server
active
PBX (Private Branch Exchange)
27. Cable with copper core - has no physical transmission security and is easy to tap - 10mbps - maximum length 500 meters
DMZ
honeynet
protocol
coaxial
28. An attack where an attacker captures sensitive information and sends it again later in an attempt to replicate the transaction
allow by default
proxy
replay
dual homed
29. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets
firewall architectures
SYN flood
spoofing
router
30. One private IP address is mapped to one public IP address
knowledge based
false negative
static NAT
twisted pair
31. 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
man in the middle and replay
proxy server
10Base5
32. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer
source - destination - protocol
allow by default
twisted pair
protocol analyzer
33. Used by ISPs - single public network IP address is shared among many hosts on a private network - also known as PAT
static NAT
port address translation
man in the middle
teardrop
34. Man in the middle attack where the content of an intercepted message is altered before it is sent on
firewalls
active
defense in depth
IP spoofing
35. When a hacker takes over a TCP session between two machines - also known as session hijacking - foiled by the use of encrypted sessions
extranet
proxy server
tcp/ip hijacking
DMZ
36. Unauthenticated Windows session where an attacker can gather list of users - groups - machines - shares - user and host SID
fiber optic
bastion host
null session
repeater
37. 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
1024 - 49 -151
smurf
fiber optic
38. 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
network
session hijacking
passive
deny by default
39. IDS that relies on usage patterns and baseline operation - can ID new vulnerability - high rate of false alarms
honeynet
behavior based
store and forward
extranet
40. Malicious activity not reported or detected
hub
dual homed
source - destination - protocol
false negative
41. Twisted pair cable with speed capability of 10Mbps
dynamic NAT
NIDS
port
cat3
42. A sniffer mode used to capture traffic addressed to/from another machine on the network
informed
store and forward
static NAT
promiscuous
43. Most common DMZ implementation using three firewall interfaces (internet - intranet - DMZ)
session hijacking
null session
multiple interface firewall
stateful inspection
44. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system
split horizon DNS
hub
IP spoofing
stateful inspection
45. Known as thinnet - 10mbps - limited to 185 meters
10Base5
NAT
10base2
NIDS network connections
46. A physical or logical subnetwork that houses systems accessible to a larger untrusted network - usually the Internet - also known as DMZ
cat5
screened subnet
IP spoofing
firewalls
47. Known as thicknet - 10mbps - limited to 500 meters
session hijacking
application
10Base5
NIDS network connections
48. Firewall with two NICs - one internal and one external facing - NAT is often used with this firewall
ARP
1024 - 49 -151
dual homed
passive
49. IP spoofing attack where the attacker can only send packets and has to guess about replies
active
blind
port
application
50. Network configuration that permits selected outsiders access internal information systems
protocol
extranet
twisted pair
cat5