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Test your basic knowledge |
Comptia Security +: Network Security
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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. 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
screened host
IP spoofing
repeater
2. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets
application gateway
packet filter
router
ping flooding
3. A complete transfer of all DNS zone information from one server to another
multi homed
ping of death
zone transfer
split horizon DNS
4. Examines a entire packet and determines action based on a complex set of rules
application gateway
ping of death
risk mitigation
store and forward
5. Two authoritative sources for your domain namespace with differing contents depending on whether the query is internal or external
layered
proxy
split horizon DNS
screened subnet
6. A set of rules computers use to communicate with each other across a network
NIDS
protocol
network
defense in depth
7. 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
firewall architectures
teardrop
session hijacking
spoofing attacks
8. 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
land attack
port address translation
NIDS
9. Bbenign activity reported as malicious
false positive
NIDS
coaxial
NIDS
10. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall
IP spoofing
VLAN
zone transfer
0 - 1023
11. Generate random TCP sequence numbers and encrypt traffic countermeasure what attacks
null session
man in the middle and replay
network
VLAN
12. Cable with copper core - has no physical transmission security and is easy to tap - 10mbps - maximum length 500 meters
null session
smurf
PBX (Private Branch Exchange)
coaxial
13. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x
PBX (Private Branch Exchange)
private
encrypt session key
bastion host
14. 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
smurf
IP spoofing
IP spoofing
hub
15. 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
multiple interface firewall
session hijacking
promiscuous
DNS spoofing
16. IDS that relies on the identification of known attack signatures
false positive
zone transfer
knowledge based
man in the middle
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
bastion host
multi homed
store and forward
passive
18. Web servers - FTP servers - DNS servers - mail servers should be located on the _____________
spoofing
informed
HIDS
DMZ
19. A sniffer mode used to capture traffic addressed to/from another machine on the network
fraggle
port address translation
promiscuous
IP spoofing
20. Connects devices together to form a subnet - broadcasts incoming packets to all devices
hub
fiber optic
protocol analyzer
application gateway
21. Allows all traffic except traffic that is specifically denied - also known as permissive access
firewall architectures
cat3
PBX (Private Branch Exchange)
allow by default
22. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address
false positive
proxy
subnet
dual homed
23. Connects devices together to form a subnet - packet forwarding is based on MAC addresses - works at the data link layer of the OSI
switch
static NAT
ping of death
NIDS network connections
24. Dynamic / private ports
smurf
hub
49 -152 - 65 -535
teardrop
25. A decoy system - intentionally left exposed to attract/distract attackers - logs and monitors attacker activities
1024 - 49 -151
IP spoofing
deny by default
honeypot
26. Most common DMZ implementation using three firewall interfaces (internet - intranet - DMZ)
risk mitigation
proxy server
proxy
multiple interface firewall
27. IP spoofing attack where the attacker can only send packets and has to guess about replies
active
blind
hub
tcp/ip hijacking
28. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice
deny by default
NAT
IP spoofing
firewalls
29. Bastion host - dual homed firewall - multi homed firewall - screened host - screened subnet
firewall architectures
coaxial
firewalls
tcp/ip hijacking
30. Firewall that communicates directly with a perimeter router and the internal network - 2 NICs - screens internal traffic
router
screened host
dynamic NAT
null session
31. Multiple network defense components are placed throughout the organizations assets and the network is properly segmented
cat5
fraggle
defense in depth
proxy server
32. Network configuration that permits selected outsiders access internal information systems
extranet
layered
application
store and forward
33. Evolved from IDS - monitors network traffic - detects and responds to attack on network
NIPS
firewalls
HIDS
content filter
34. One device per network segment - does not use local system resources - can't examine encrypted traffic - OS independent - less expensive
NIDS
source - destination - protocol
packet filter
NIDS network connections
35. Twisted pair cable with speed capability of 1Gbps
cat5
risk mitigation
multiple interface firewall
HIDS
36. A locked down/hardened host on the public side of the firewall highly exposed to attacks (i.e. web server - email server)
risk mitigation
broadcast domain
bastion host
active
37. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet
informed
layered
website spoofing
replay
38. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system
NIDS network connections
proxy
fiber optic
router
39. Firewall with several NICs connected to different networks
multi homed
broadcast domain
cat5
router
40. Connects two or more subnets - determines the best path to forward packets based on packet header and forwarding table information
router
0 - 1023
port address translation
repeater
41. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other
honeynet
zone transfer
man in the middle
coaxial
42. IP spoofing attack where the attacker can monitor packets and participate in bidirectional communication
blind
deny by default
informed
firewall architectures
43. Malicious activity not reported or detected
website spoofing
false negative
session hijacking
subnet
44. Creating a illegitimate website with the intention of convincing victims that they are visiting a legitimate site - typically to collect confidential information
proxy
website spoofing
knowledge based
application
45. Malicious insiders - connections that bypass the firewall (i.e. IM) - encrypted traffic/tunneling - social engineering - physical access are missed by ___________
proxy server
source - destination - protocol
promiscuous
firewalls
46. Examines content passing through and makes a decision on the data based on a set of criteria - normal uses email filtering and web browsing
49 -152 - 65 -535
cat5
content filter
man in the middle
47. Used to pass data from one VLAN to another
false negative
router
proxy server
fiber optic
48. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets
twisted pair
knowledge based
SYN flood
honeynet
49. A server that sits between an intranet and it's Internet connection - masking all IP addresses
layered
router
proxy server
repeater
50. Forging an IP address with the address of a trusted host
store and forward
deny by default
IP spoofing
NIDS network connections
Can you answer 50 questions in 15 minutes?
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