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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. Attempt to block service or reduce activity by overloading the victim machine with ping requests
dynamic NAT
49 -152 - 65 -535
tcp/ip hijacking
ping flooding
2. 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
land attack
defense in depth
multiple interface firewall
3. IDS response method using logging and notification
passive
packet filter
screened subnet
screened host
4. Acts as an organizations internal phone system
fraggle
network
layered
PBX (Private Branch Exchange)
5. Dynamic / private ports
ARP poisoning
tcp/ip hijacking
promiscuous
49 -152 - 65 -535
6. Seeks to reduce the probability and/or impact of a specific risk below an acceptable threshold
website spoofing
risk mitigation
port
cat3
7. Twisted pair cable with speed capability of 1Gbps
store and forward
deny by default
cat3
cat5
8. An attacker redirects valid request to malicious sites by feeding a DNS server altered records which are retained in its cache
DNS spoofing
ARP
blind
false positive
9. An application layer gateway works at this layer of the OSI model
application
spoofing attacks
zone transfer
private
10. Connects two or more subnets - determines the best path to forward packets based on packet header and forwarding table information
stateful inspection
false negative
split horizon DNS
router
11. Used to pass data from one VLAN to another
IP spoofing
router
blind
DoS attacks
12. An attacker redirects traffic by falsifying the IP address requested by ARP request
firewall architectures
ARP poisoning
hub
SYN flood
13. 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
49 -152 - 65 -535
honeynet
deny by default
14. A packet filtering firewall works at this layer of the OSI model
NIPS
10base2
network
tcp/ip hijacking
15. Amplifies the signal of incoming packets before broadcasting them to the network
static NAT
website spoofing
honeynet
repeater
16. Firewall that communicates directly with a perimeter router and the internal network - 2 NICs - screens internal traffic
screened host
false negative
VLAN
application gateway
17. A feature of firewalls / routers that disguise the IP address of internal systems allowing connection to the Internet using one public address
IP spoofing
NIDS
DoS attacks
NAT
18. 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
layered
HIDS
cat5
19. IDS that relies on usage patterns and baseline operation - can ID new vulnerability - high rate of false alarms
tcp/ip hijacking
behavior based
static NAT
DoS attacks
20. 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
session hijacking
allow by default
store and forward
port address translation
21. IPS response method - terminate process/session - block/reject and redirect network traffic
null session
active
land attack
behavior based
22. When a hacker takes over a TCP session between two machines - also known as session hijacking - foiled by the use of encrypted sessions
multiple interface firewall
tcp/ip hijacking
ARP
extranet
23. Forging an IP address with the address of a trusted host
firewalls
IP spoofing
teardrop
deny by default
24. Unauthenticated connections - creating the potential for a successful connection as an anonymous user
SYN flood
smurf
stateful inspection
null session
25. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer
deny by default
protocol analyzer
fiber optic
multi homed
26. Examines content passing through and makes a decision on the data based on a set of criteria - normal uses email filtering and web browsing
ping flooding
content filter
cat5
protocol analyzer
27. Network configuration that permits selected outsiders access internal information systems
broadcast domain
extranet
ARP
twisted pair
28. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x
fiber optic
IP spoofing
active
private
29. A pool of public IP addresses is shared by a collection of private IP addresses
DoS attacks
dynamic NAT
firewall architectures
defense in depth
30. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets
NIDS
SYN flood
false positive
HIDS
31. Crashing a computer by sending oversized packets (over 64 bytes) that it doesn't know how to handle
network
defense in depth
ping of death
multi homed
32. IP - email - website - DNS - and ARP
49 -152 - 65 -535
spoofing attacks
honeynet
multiple interface firewall
33. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets
zone transfer
static NAT
packet filter
screened subnet
34. Bastion host - dual homed firewall - multi homed firewall - screened host - screened subnet
passive
firewall architectures
HIDS
stateful inspection
35. Two authoritative sources for your domain namespace with differing contents depending on whether the query is internal or external
repeater
NIDS
protocol analyzer
split horizon DNS
36. Firewall with two NICs - one internal and one external facing - NAT is often used with this firewall
dual homed
static NAT
replay
switch
37. Packet filtering - proxies - stateful inspection
10Base5
firewalls
SYN flood
coaxial
38. An attack where an attacker captures sensitive information and sends it again later in an attempt to replicate the transaction
replay
store and forward
spoofing attacks
proxy
39. A physical or logical subnetwork that houses systems accessible to a larger untrusted network - usually the Internet - also known as DMZ
content filter
proxy
passive
screened subnet
40. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall
IP spoofing
1024 - 49 -151
man in the middle
0 - 1023
41. One device per network segment - does not use local system resources - can't examine encrypted traffic - OS independent - less expensive
behavior based
multiple interface firewall
subnet
NIDS
42. Cable used most in networks - maximum speed 1Gbps - maximum length 100 meters - susceptible to tap
twisted pair
false positive
HIDS
spoofing attacks
43. 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
allow by default
10base2
proxy server
stateful inspection
44. Protocol used to map an known IP address to its corresponding media access control (MAC) address
fraggle
NIDS network connections
hub
ARP
45. Evolved from IDS - monitors network traffic - detects and responds to attack on network
private
smurf
NIPS
firewalls
46. A decoy system - intentionally left exposed to attract/distract attackers - logs and monitors attacker activities
proxy
honeypot
10base2
NIDS
47. Firewall with several NICs connected to different networks
multi homed
HIDS
risk mitigation
knowledge based
48. Connects devices together to form a subnet - broadcasts incoming packets to all devices
NIDS network connections
source - destination - protocol
hub
tcp/ip hijacking
49. IP spoofing attack where the attacker can only send packets and has to guess about replies
switch
blind
router
protocol
50. 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
replay
website spoofing
content filter