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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. 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
store and forward
NIDS
multi homed
port address translation
2. Cable with copper core - has no physical transmission security and is easy to tap - 10mbps - maximum length 500 meters
NIDS network connections
passive
coaxial
spoofing attacks
3. Used by ISPs - single public network IP address is shared among many hosts on a private network - also known as PAT
twisted pair
defense in depth
port address translation
0 - 1023
4. Bbenign activity reported as malicious
NIPS
PBX (Private Branch Exchange)
false positive
man in the middle and replay
5. IDS that relies on usage patterns and baseline operation - can ID new vulnerability - high rate of false alarms
behavior based
router
knowledge based
screened host
6. IP - email - website - DNS - and ARP
spoofing attacks
NIDS
firewalls
NIDS network connections
7. Monitors network traffic to identify possible attacks
promiscuous
NIDS
passive
null session
8. Used to pass data from one VLAN to another
deny by default
router
false positive
DNS spoofing
9. Creating a illegitimate website with the intention of convincing victims that they are visiting a legitimate site - typically to collect confidential information
website spoofing
network
null session
promiscuous
10. User / registered ports
application gateway
VLAN
1024 - 49 -151
ARP poisoning
11. An attacker redirects traffic by falsifying the IP address requested by ARP request
49 -152 - 65 -535
NIDS
ARP poisoning
cat5
12. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets
broadcast domain
10base2
packet filter
stateful inspection
13. Examines a entire packet and determines action based on a complex set of rules
ARP
passive
fraggle
application gateway
14. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet
spoofing
layered
NAT
hub
15. IDS that relies on the identification of known attack signatures
IP spoofing
source - destination - protocol
replay
knowledge based
16. A complete transfer of all DNS zone information from one server to another
IP spoofing
content filter
zone transfer
spoofing attacks
17. Unauthenticated connections - creating the potential for a successful connection as an anonymous user
ARP
0 - 1023
spoofing
null session
18. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall
router
active
0 - 1023
encrypt session key
19. 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
ARP poisoning
NIDS network connections
blind
session hijacking
20. Bastion host - dual homed firewall - multi homed firewall - screened host - screened subnet
HIDS
1024 - 49 -151
firewall architectures
encrypt session key
21. Seeks to reduce the probability and/or impact of a specific risk below an acceptable threshold
man in the middle and replay
port
extranet
risk mitigation
22. Examines content passing through and makes a decision on the data based on a set of criteria - normal uses email filtering and web browsing
website spoofing
content filter
protocol analyzer
dual homed
23. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system
false negative
IP spoofing
HIDS
subnet
24. Variation of the SYN flood where SYN packets are spoofed to have the same source and destination IP address and port
twisted pair
passive
land attack
firewalls
25. A pool of public IP addresses is shared by a collection of private IP addresses
active
screened subnet
store and forward
dynamic NAT
26. Man in the middle attack where the attacker captures the traffic and sends it to the original recipient without altering the intercepted data
packet filter
private
passive
man in the middle
27. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system
NIDS network connections
network
deny by default
twisted pair
28. 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
honeynet
stateful inspection
port
teardrop
29. A locked down/hardened host on the public side of the firewall highly exposed to attacks (i.e. web server - email server)
honeynet
layered
bastion host
false negative
30. A decoy system - intentionally left exposed to attract/distract attackers - logs and monitors attacker activities
1024 - 49 -151
twisted pair
honeypot
risk mitigation
31. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other
port address translation
man in the middle
49 -152 - 65 -535
passive
32. Evolved from IDS - monitors network traffic - detects and responds to attack on network
NAT
NIPS
multiple interface firewall
land attack
33. Web servers - FTP servers - DNS servers - mail servers should be located on the _____________
null session
DMZ
protocol analyzer
teardrop
34. Network configuration that permits selected outsiders access internal information systems
proxy
extranet
ARP poisoning
spoofing attacks
35. Allows all traffic except traffic that is specifically denied - also known as permissive access
allow by default
layered
NIPS
subnet
36. Man in the middle attack where the content of an intercepted message is altered before it is sent on
VLAN
honeynet
active
firewalls
37. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x
source - destination - protocol
zone transfer
private
IP spoofing
38. Twisted pair cable with speed capability of 10Mbps
man in the middle and replay
HIDS
cat3
49 -152 - 65 -535
39. A variation of a smurf attack using UDP
fraggle
passive
session hijacking
switch
40. Level 2 firewall often used to filter web traffic
proxy
website spoofing
PBX (Private Branch Exchange)
DoS attacks
41. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address
land attack
active
switch
subnet
42. Attempt to block service or reduce activity by overloading the victim machine with ping requests
subnet
man in the middle
10base2
ping flooding
43. A flaw in TCP/IP to verify that a packet really comes from the addess indicated in the IP header leads to this attack
IP spoofing
false positive
repeater
man in the middle
44. One private IP address is mapped to one public IP address
proxy server
static NAT
blind
null session
45. Cable designed for transmission at higher speeds (100Mbps - 2Gbps) and longer distances (2km) - expensive -eliminates signal tapping
fiber optic
stateful inspection
hub
firewall architectures
46. Cable used most in networks - maximum speed 1Gbps - maximum length 100 meters - susceptible to tap
promiscuous
stateful inspection
twisted pair
DNS spoofing
47. A set of rules computers use to communicate with each other across a network
DoS attacks
protocol
spoofing
defense in depth
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
firewalls
broadcast domain
website spoofing
network
49. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer
PBX (Private Branch Exchange)
IP spoofing
replay
protocol analyzer
50. IP spoofing attack where the attacker can only send packets and has to guess about replies
stateful inspection
dynamic NAT
blind
network