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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 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
bastion host
network
stateful inspection
10base2
2. Cable designed for transmission at higher speeds (100Mbps - 2Gbps) and longer distances (2km) - expensive -eliminates signal tapping
fiber optic
dynamic NAT
blind
honeypot
3. Examines a entire packet and determines action based on a complex set of rules
protocol analyzer
firewalls
application gateway
promiscuous
4. 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
IP spoofing
null session
application
broadcast domain
5. Network configuration that permits selected outsiders access internal information systems
coaxial
ARP poisoning
extranet
false positive
6. Twisted pair cable with speed capability of 1Gbps
SYN flood
cat5
split horizon DNS
promiscuous
7. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet
port
screened host
spoofing attacks
layered
8. Known as thinnet - 10mbps - limited to 185 meters
DoS attacks
10Base5
false negative
10base2
9. 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
defense in depth
website spoofing
active
10. IP - email - website - DNS - and ARP
protocol analyzer
spoofing attacks
application gateway
fiber optic
11. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system
NIDS
private
IP spoofing
static NAT
12. Level 2 firewall often used to filter web traffic
proxy
twisted pair
stateful inspection
network
13. Unauthenticated connections - creating the potential for a successful connection as an anonymous user
honeynet
risk mitigation
store and forward
null session
14. Man in the middle attack where the attacker captures the traffic and sends it to the original recipient without altering the intercepted data
risk mitigation
screened subnet
passive
SYN flood
15. Malicious insiders - connections that bypass the firewall (i.e. IM) - encrypted traffic/tunneling - social engineering - physical access are missed by ___________
protocol analyzer
router
firewalls
defense in depth
16. Generate random TCP sequence numbers and encrypt traffic countermeasure what attacks
switch
spoofing
active
man in the middle and replay
17. Bastion host - dual homed firewall - multi homed firewall - screened host - screened subnet
firewall architectures
session hijacking
website spoofing
HIDS
18. A complete transfer of all DNS zone information from one server to another
zone transfer
router
firewalls
ARP poisoning
19. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x
10base2
multiple interface firewall
private
DNS spoofing
20. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets
ping of death
store and forward
dual homed
packet filter
21. An attack where an attacker captures sensitive information and sends it again later in an attempt to replicate the transaction
teardrop
replay
DMZ
bastion host
22. Cable with copper core - has no physical transmission security and is easy to tap - 10mbps - maximum length 500 meters
router
blind
coaxial
content filter
23. An application layer gateway works at this layer of the OSI model
passive
DMZ
proxy server
application
24. One device per network segment - does not use local system resources - can't examine encrypted traffic - OS independent - less expensive
NIDS
encrypt session key
NAT
NIPS
25. A logical connection point allowing computers and software to communicate and exchange data
repeater
network
port
protocol analyzer
26. Attempt to block service or reduce activity by overloading the victim machine with ping requests
firewall architectures
split horizon DNS
ping flooding
network
27. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice
packet filter
fiber optic
deny by default
broadcast domain
28. Monitors network traffic to identify possible attacks
smurf
spoofing attacks
NIDS
store and forward
29. 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
teardrop
49 -152 - 65 -535
false negative
10base2
30. IDS that relies on usage patterns and baseline operation - can ID new vulnerability - high rate of false alarms
behavior based
spoofing attacks
static NAT
10Base5
31. Multiple network defense components are placed throughout the organizations assets and the network is properly segmented
defense in depth
ping of death
fiber optic
store and forward
32. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system
smurf
active
coaxial
NIDS network connections
33. Web servers - FTP servers - DNS servers - mail servers should be located on the _____________
man in the middle and replay
store and forward
DMZ
cat3
34. IP spoofing attack where the attacker can only send packets and has to guess about replies
ARP poisoning
application
land attack
blind
35. A pool of public IP addresses is shared by a collection of private IP addresses
1024 - 49 -151
firewalls
dynamic NAT
HIDS
36. Forging an IP address with the address of a trusted host
spoofing
HIDS
layered
IP spoofing
37. Protocol used to map an known IP address to its corresponding media access control (MAC) address
firewalls
ARP
application gateway
DoS attacks
38. Used by ISPs - single public network IP address is shared among many hosts on a private network - also known as PAT
ARP poisoning
null session
port address translation
screened host
39. Creating a illegitimate website with the intention of convincing victims that they are visiting a legitimate site - typically to collect confidential information
promiscuous
website spoofing
DMZ
cat3
40. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall
0 - 1023
switch
PBX (Private Branch Exchange)
bastion host
41. Allows all traffic except traffic that is specifically denied - also known as permissive access
encrypt session key
49 -152 - 65 -535
allow by default
promiscuous
42. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other
fiber optic
HIDS
man in the middle
IP spoofing
43. 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
DNS spoofing
application
replay
session hijacking
44. A locked down/hardened host on the public side of the firewall highly exposed to attacks (i.e. web server - email server)
bastion host
fraggle
1024 - 49 -151
behavior based
45. Connects two or more subnets - determines the best path to forward packets based on packet header and forwarding table information
10base2
router
bastion host
49 -152 - 65 -535
46. Firewall with several NICs connected to different networks
ARP poisoning
bastion host
land attack
multi homed
47. Two authoritative sources for your domain namespace with differing contents depending on whether the query is internal or external
website spoofing
honeypot
content filter
split horizon DNS
48. Dynamic / private ports
stateful inspection
passive
49 -152 - 65 -535
active
49. Twisted pair cable with speed capability of 10Mbps
0 - 1023
broadcast domain
firewall architectures
cat3
50. Session hijacking countermeasure
encrypt session key
passive
teardrop
application