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Test your basic knowledge |
GIAC
Start Test
Study First
Subjects
:
certifications
,
giac
,
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. Allows segmentation of a switch into different networks - regardless of where a system is plugged in - creates separate networks through software not hardware
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2. Protects internal/external systems from attack - filters communications based on content - performs NAT - encrypts communications for VPN - logging to aid in intrusion detection
Proxy or application gateway
Some firewall benefits
WAN
Types of ATM virtual circuits
3. Application layer attacks may get through - dialup - VPN - extranet connections may bypass firewalls
Some common UDP ports
Best way to protect wireless networks
Some firewall challenges
Browsing attack
4. Unencrypted message in its original form
Plaintext
NIDS advantages
What range is a class B network?
The network layer
5. Attaches itself to existing program files and activated when the exe is launched
Some common UDP ports
Program infector
Firewall
SYN flood
6. removable media - email attachments - web browsing - social networking - network vulnerabilities - IM applications - p2p
Some malware propagation techniques
Rotation?
What range is a class C network?
Trojan horse
7. Slow - requires stateful data tracking - inspects all fields - including variable-length fields
Plaintext
Deep packet inspection
IDS signature analysis work
The threat vector analysis in defense in depth
8. It interacts with the application layer to determine which network services will be required
A netmask
Address Resolution Protocol (ARP)
Overview of TCP
the application layer
9. Spread as an office attachment with executable code programmed using macro facility - targets are data files - visual basic editor and other macro languages - payload executes when the code is launched
Smurf attack
Some malware capabilities
The Information Centric defense in depth
Macro virus
10. Resource exhaustion like DDoS or fork attack - unexpected input value the machine does not know how to process
CIDR
Denial of service
The five threat vectors
Arbitrary substitution
11. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability
Some disadvantages of honeypots
Parasitic malware
A netcat listener
Some reasons to use TCP over UDP
12. Uses flow control to handle network congestion - can send larger amounts of data per packet - has guaranteed delivery of transmitted data - better protection against spoofing - reduces need for error checking at higher OSI layers
Anomaly analysis work
The data link layer
Some firewall challenges
Some reasons to use TCP over UDP
13. Used for connecting two physical segments of a network - segments traffic - breaks up collision domains - not generally used because of switches
PAN
The OSI model
Address Resolution Protocol (ARP)
Bridge
14. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.
SYN flood
Boot record infector
Firewall
WAN
15. Infected millions through various methods - vulnerability in the MS Server Service - brute force admin password through network shares - infect removable devices with a malicious autorun script
File integrity checking work
The conficker worm
Race conditions
EXE program infector
16. Publish separate mail - web - and DNS servers to the internet - provide appropriate access from internal network to internet - protect internal from external attack - provide defense in depth - protect all aspects of the system
PAN
No State Inspection ACK flag set
Boot record infector
Some network design objectives
17. A spoofed IP is used to send a SYN to the target. It then responds with a SYN/ACK that never receives the final ACK to complete the handshake. This occupies a portion of the target's pre-established buffer for TCP and can prevent the target from acce
To establish a TCP session
LAN
SYN flood
The data link layer
18. Malware - insider threat - natural disaster - terrorism - pandemic
What range is a class B network?
Hubs
Smurf attack
What primary threats should be protected against
19. Outside attack from network - Outsider attack from telephone - Insider attack from local network - insider attack from local system - attack from malicious code
The protected enclave to defense in depth
The five threat vectors
Honeyd
Router
20. Hash Authentication - asymmetric - non repudiation - digital signature - hash + asymmetry
NIDS challenges
Integrity of Data
When setting up a virtual circuit
Arbitrary substitution
21. Metropolitan area network - spans across city or town - larger than a LAN - uses fiber for backbone
OS Command Injection defenses
Some common UDP ports
To establish a TCP session
MAN
22. local area network - small network confined to small location - all equipment owned by a single entity - vulnerable to inside threats and logic bombs
Firewall
LAN
Asynchronous Transfer Mode
Worms
23. An agreement on how different computer will work - protocols define the format and order of messages and what to do upon receipt of the messages - basically the rules of the network
What ways should the crypto key be protected?
Trap door
Group
A network protocol
24. Relies on executable code insertion and user interaction to spread
The presentation layer
Parasitic malware
Network stumbler
UDP packet headers
25. 53 bytes - 48 bytes for data - 5 bytes for the header
The threat vector analysis in defense in depth
Worms
IDS signature analysis work
Total cell size for asynchronous transfer mode (ATM)
26. It handles the establishment and maintenance of connections between systems
When setting up a virtual circuit
Proxy or application gateway
UDP packet headers
The session layer
27. destruction of data - leaking confidential information - providing backdoor access
Parasitic malware
Some malware capabilities
What range is a class A network?
Internet
28. Personal area network - phone tethering - bluetooth - etc
PAN
Types of ATM virtual circuits
Anomaly analysis work
Parasitic malware
29. It allows the transport layer to detect when the UDP headers or the payload have been modified in transit
What threats should be protected against - based on threat levels
Checksum in UDP
What's a VLAN
Ack Piggybacking
30. fast - with little fidelity - examines header information and limited payload data
Some reasons to use TCP over UDP
Shallow packet inspection
Social engineering
Rootkit
31. A system resource that has no legitimate purpose or reason for someone to connect to it - its purpose is to draw in attackers to understand how they break into a system
TFTP
NAC
Stateless packet filter
Honeypot
32. rules indicate criteria in packets that represent events of interest - rules are applied to packets as they are received - alerts are created when matches are found
Some network design objectives
MAN
IDS signature analysis work
Multi protocol label switching
33. An FTP that allows downloads only if the user knows the exact name of the file they're looking for
The threat vector analysis in defense in depth
COM/Script program infector
To establish a TCP session
A blind FTP
34. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS
A netcat listener
Permutation
ACK piggybacking
Some common TCP ports
35. Good for multimedia - can use small single packets - multicasting is required - speed is the highest priority
Address resolution protocol
Some reasons to use UDP over TCP
Network stumbler
IDS data normalization
36. Infects MBR - no network spreading potential
Boot record infector
Proxy or application gateway
Logic bomb
Address Resolution Protocol (ARP)
37. Take the file and try to compress it. If it compresses - it means there is a pattern and it's more easily crackable
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38. An attempt to gain access by bombarding it with guesses until the password is found.
The network layer
Buffer overflow
Brute force
Boot record infector
39. CIDR is a shorthand way of specifying which portion of the address is the network - and which portion is the host
CIDR
What threats should be protected against - based on threat levels
Brute force
Datagram length of a UDP packet
40. Protocol for mapping an IP address to a physical machine address that is recognized on the local network - A table - usually called the ARP cache - is used to maintain a correlation between each MAC and it's corresponding IP address
Internet
The conficker worm
Address Resolution Protocol (ARP)
Anomaly analysis work
41. An attacker spoofs the victim's IP and sends an ICMP ECHO request to the broadcast address of a network. When every system responds - a DoS occurs.
The session layer
File Integrity checking work
War Dialing
Smurf attack
42. Intrusion detection system - it reports attacks against monitored systems/networks
Some disadvantages of honeypots
CIDR
EXE program infector
IDS
43. Unified data carrying service - replacing from replay and ATM
3-way handshake
Parasitic malware
Nmap scanning techniques
Multi protocol label switching
44. Not a replacement for firewalls - hardening - strong policies - or other DiD methods - low maintenance - inexpensive
IDS not
The conficker worm
Some reasons to use UDP over TCP
Bridge
45. Infects the EXE and make them operate slightly different - when infected - exe header sizes are altered to point to the appended viral code
Some types of malicious code
ACK piggybacking
the application layer
EXE program infector
46. When someone has compromised the integrity of data or a program. Allows attackers to create backdoors.
ACK piggybacking
Buffer overflow
Alteration of code
What's an easy way to test encryption?
47. Threat requires a vector to cross the vulnerability - stop the ability of the threat to use the vector
Brute force
To close a TCP session
The threat vector analysis in defense in depth
Bus Topology
48. Protected at rest - protected in transit - secure the key
The TCP/IP model
NAC
What ways should the crypto key be protected?
Remote maintenance
49. flags anomalous conditions in traffic on the network - requires understanding on what is normal - bases good traffic as a baseline
Anomaly analysis work
Some disadvantages of honeypots
The different cable categories
What categories do vulnerabilities fall into?
50. Message in its encrypted form
IDS data normalization
The goals of cryptography
Ciphertext
Some other UDP based protocols