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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. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall
session hijacking
blind
0 - 1023
private
2. One private IP address is mapped to one public IP address
0 - 1023
ping flooding
private
static NAT
3. Creating a illegitimate website with the intention of convincing victims that they are visiting a legitimate site - typically to collect confidential information
firewalls
website spoofing
broadcast domain
application
4. IDS that relies on the identification of known attack signatures
port address translation
honeypot
passive
knowledge based
5. Evolved from IDS - monitors network traffic - detects and responds to attack on network
NIPS
hub
false positive
10Base5
6. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets
passive
deny by default
informed
SYN flood
7. Cable designed for transmission at higher speeds (100Mbps - 2Gbps) and longer distances (2km) - expensive -eliminates signal tapping
network
0 - 1023
fiber optic
content filter
8. Amplifies the signal of incoming packets before broadcasting them to the network
informed
repeater
twisted pair
49 -152 - 65 -535
9. Firewall with several NICs connected to different networks
website spoofing
multi homed
NIDS
source - destination - protocol
10. Acts as an organizations internal phone system
router
PBX (Private Branch Exchange)
IP spoofing
passive
11. Session hijacking countermeasure
encrypt session key
content filter
passive
NIDS network connections
12. A locked down/hardened host on the public side of the firewall highly exposed to attacks (i.e. web server - email server)
bastion host
NAT
active
extranet
13. Multiple network defense components are placed throughout the organizations assets and the network is properly segmented
port address translation
informed
source - destination - protocol
defense in depth
14. Protocol used to map an known IP address to its corresponding media access control (MAC) address
ARP
behavior based
firewall architectures
application
15. Two authoritative sources for your domain namespace with differing contents depending on whether the query is internal or external
application
smurf
cat3
split horizon DNS
16. Collection on honeypots
IP spoofing
teardrop
honeynet
packet filter
17. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet
proxy
tcp/ip hijacking
protocol
layered
18. A feature of firewalls / routers that disguise the IP address of internal systems allowing connection to the Internet using one public address
NAT
private
false negative
dynamic NAT
19. 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
0 - 1023
screened host
active
20. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system
49 -152 - 65 -535
IP spoofing
protocol
broadcast domain
21. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system
protocol analyzer
zone transfer
NIDS network connections
extranet
22. Cable with copper core - has no physical transmission security and is easy to tap - 10mbps - maximum length 500 meters
coaxial
cat5
proxy server
port address translation
23. Head of a packet contains...
coaxial
null session
allow by default
source - destination - protocol
24. 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
risk mitigation
VLAN
NIDS
session hijacking
25. IDS response method using logging and notification
passive
packet filter
deny by default
port address translation
26. A physical or logical subnetwork that houses systems accessible to a larger untrusted network - usually the Internet - also known as DMZ
informed
packet filter
screened subnet
port address translation
27. 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
proxy server
broadcast domain
active
teardrop
28. Twisted pair cable with speed capability of 1Gbps
NIDS network connections
passive
cat5
risk mitigation
29. Variation of the SYN flood where SYN packets are spoofed to have the same source and destination IP address and port
layered
land attack
allow by default
subnet
30. Crashing a computer by sending oversized packets (over 64 bytes) that it doesn't know how to handle
DoS attacks
repeater
ping of death
active
31. Used by ISPs - single public network IP address is shared among many hosts on a private network - also known as PAT
port address translation
honeynet
deny by default
allow by default
32. A logical connection point allowing computers and software to communicate and exchange data
49 -152 - 65 -535
port
screened host
NIDS network connections
33. Level 2 firewall often used to filter web traffic
multiple interface firewall
false negative
proxy
screened host
34. An attacker redirects valid request to malicious sites by feeding a DNS server altered records which are retained in its cache
defense in depth
extranet
stateful inspection
DNS spoofing
35. An attack where an attacker captures sensitive information and sends it again later in an attempt to replicate the transaction
replay
switch
proxy server
land attack
36. Firewall that communicates directly with a perimeter router and the internal network - 2 NICs - screens internal traffic
knowledge based
proxy
screened host
session hijacking
37. A complete transfer of all DNS zone information from one server to another
coaxial
protocol
proxy server
zone transfer
38. User / registered ports
1024 - 49 -151
split horizon DNS
false negative
stateful inspection
39. Web servers - FTP servers - DNS servers - mail servers should be located on the _____________
promiscuous
DMZ
risk mitigation
cat3
40. A packet filtering firewall works at this layer of the OSI model
network
ping flooding
false negative
DMZ
41. Allows all traffic except traffic that is specifically denied - also known as permissive access
NIDS
spoofing
allow by default
IP spoofing
42. Ping flooding - ping of death - smurf - fraggle - SYN flood - land - teardrop - email flood
dynamic NAT
DoS attacks
port
NIDS
43. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address
HIDS
subnet
store and forward
multiple interface firewall
44. IP spoofing attack where the attacker can monitor packets and participate in bidirectional communication
cat5
spoofing attacks
informed
network
45. A sniffer mode used to capture traffic addressed to/from another machine on the network
private
proxy
router
promiscuous
46. An attacker redirects traffic by falsifying the IP address requested by ARP request
ARP poisoning
allow by default
IP spoofing
replay
47. Malicious activity not reported or detected
false negative
1024 - 49 -151
network
man in the middle and replay
48. Twisted pair cable with speed capability of 10Mbps
cat3
subnet
land attack
coaxial
49. Connects devices together to form a subnet - broadcasts incoming packets to all devices
hub
bastion host
twisted pair
network
50. When a hacker takes over a TCP session between two machines - also known as session hijacking - foiled by the use of encrypted sessions
NIDS
zone transfer
tcp/ip hijacking
network