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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. Unencrypted message in its original form
Denial of service
Checksum in UDP
Some common TCP ports
Plaintext
2. 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
Switches
Vulnerabilities
Some reasons to use TCP over UDP
HIDS monitor
3. Identify critical assets and provide layered protection - data is accessed by applications - applications reside on hosts - hosts operate on networks
Trojan horse
Ack Piggybacking
The Information Centric defense in depth
The five threat vectors
4. 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
IDS not
The conficker worm
NIDS advantages
The four basic approaches to defense in depth
5. Outside attack from network - Outsider attack from telephone - Insider attack from local network - insider attack from local system - attack from malicious code
A netmask
The four types of events reported by IDS
To close a TCP session
The five threat vectors
6. Metropolitan area network - spans across city or town - larger than a LAN - uses fiber for backbone
Alteration of code
MAN
What range is a class C network?
Stateful firewall
7. Provides insight into traffic on the network - help detect problems with network operations - provides auditing for other security measures
NIDS advantages
Some network design objectives
Asynchronous Transfer Mode
The physical layer stack
8. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0
What ways should the crypto key be protected?
Anomaly analysis work
What range is a class C network?
Brute force
9. Infects the EXE and make them operate slightly different - when infected - exe header sizes are altered to point to the appended viral code
The Information Centric defense in depth
EXE program infector
Kismet
Some disadvantages of honeypots
10. Used for connecting two physical segments of a network - segments traffic - breaks up collision domains - not generally used because of switches
Shallow packet inspection
Honeyd
Bridge
Denial of service
11. Message in its encrypted form
Some external threat concerns
Ciphertext
Some firewall benefits
A blind FTP
12. A sends a SYN packet to B - B acknowledges with a SYN/ACK - A replies with ACK
Some firewall benefits
3-way handshake
Arbitrary substitution
What range is a class B network?
13. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability
The different cable categories
To close a TCP session
Some disadvantages of honeypots
The difference in stacks
14. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0
Social engineering
Some disadvantages of honeypots
To establish a TCP session
What range is a class A network?
15. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.
Hubs
Firewall
NIDS advantages
IDS
16. Wide Area Network - Larger than MAN or LAN - uses public network - phone lines - and leased lines to tie LAN and MAN over a dispersed area
WAN
The four types of events reported by IDS
Some Pen Test techniques
Denial of service
17. Common backdoor to open a port - port scan scans for open ports on remote host - scans 0 - 65 -535 twice. TCP and UDP
Some malware capabilities
No State Inspection ACK flag set
Port scan
IDS data normalization
18. fast - with little fidelity - examines header information and limited payload data
Shallow packet inspection
The TCP/IP model
Boot record infector
COM/Script program infector
19. A time of check/time of use attack that exploits the difference in between when a security control was applied and the time the service was used.
Remote maintenance
Internet
The conficker worm
Race conditions
20. Handles the network address scheme and connectivity of multiple network segments. It handles communication.
Best way to protect wireless networks
The conficker worm
The network layer
Total cell size for asynchronous transfer mode (ATM)
21. Used by IDS for a baseline before analysis - attackers will try to de-normalize traffic to evade detection - IDS will normalize data for understood protocols
Logic bomb
The CIA triad
IDS data normalization
Group
22. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum
When setting up a virtual circuit
NAC
UDP packet headers
Macro virus
23. FIN 130 - ACK 131 - FIN 570 - ACK 571
To close a TCP session
OS Command Injection defenses
Honeypot
The TCP/IP model
24. -Malicious code might execute destructive overwrite to hard disks -Malicious mas mailing code might expose sensitive information to the internet - web server compromise might expose organization to ridicule - Web server compromise might expose custom
Some types of malicious code
Switches
Some external threat concerns
Total cell size for asynchronous transfer mode (ATM)
25. local area network - small network confined to small location - all equipment owned by a single entity - vulnerable to inside threats and logic bombs
Some firewall challenges
UDP packet headers
COM/Script program infector
LAN
26. True positive - false positive - true negative - false negative
The four types of events reported by IDS
Trap door
CIDR
The session layer
27. free windows based wireless scanner for 802.1b - detects access point settings - supports GSP integration - identifies networks as encrypted or unencrypted
The four basic approaches to defense in depth
NIDS advantages
Network stumbler
Worms
28. Most common approach - firewall - VPN - intrusion detection - AV - disk encryption - all parts of the organization receive equal protection - particularly vulnerable to malicious inside attacks
the application layer
Proxy or application gateway
SYN flood
The Uniform Protection to defense in depth
29. Parasitic malware - boot record infector - macro - COM/Script program infector - EXE program infector
Types of viruses
File integrity checking work
File Integrity checking work
The four basic approaches to defense in depth
30. Four layers - Network Layer - Internet Layer - Transport Layer - Application layer
The OSI Protocol Stack
The TCP/IP model
DDoS attack
Brute force
31. Resource exhaustion like DDoS or fork attack - unexpected input value the machine does not know how to process
Asynchronous Transfer Mode
NIDS advantages
Denial of service
The five threat vectors
32. 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
Rotation?
Honeypot
When talking about protocols and referencing layers - what stack is used
Total cell size for asynchronous transfer mode (ATM)
33. War dialing - war driving - Sniffing - eavesdropping - dumpster diving - social engineering
When setting up a virtual circuit
Some Pen Test techniques
Some types of malicious code
NAC
34. When someone has compromised the integrity of data or a program. Allows attackers to create backdoors.
Alteration of code
WAN
DDoS attack
Total cell size for asynchronous transfer mode (ATM)
35. Confidentiality - integrity - availability
Shallow packet inspection
The three goals of security
Some types of malicious code
Brute force
36. Connects the physical part of the network (cables) with the abstract (packets and datastreams)
No State Inspection ACK flag set
The data link layer
Firewall
What range is a class A network?
37. An FTP that allows downloads only if the user knows the exact name of the file they're looking for
Types of viruses
A blind FTP
Integrity of Data
The transport layer
38. 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
IDS signature analysis work
The session layer
Bridge
Stateless packet filter
39. Maintains complete TCP connection state and sequencing through 2 connections - address translation built-in by virtue of second connection above
What categories do vulnerabilities fall into?
Some honeypot advantages
Proxy or application gateway
NIDS advantages
40. Provides insight into the tactics - motives - and attacker tools
Some honeypot advantages
A network protocol
A netcat listener
Best way to protect wireless networks
41. Protects internal/external systems from attack - filters communications based on content - performs NAT - encrypts communications for VPN - logging to aid in intrusion detection
What range is a class C network?
Some Pen Test techniques
Some firewall benefits
Ack Piggybacking
42. Not frequently seen on LANs because of expense - because of its traffic predictability and high bandwidth support - it's good for video streaming - encapsulates common protocols - uses virtual path identifiers to create end to end connectivity - has
The conficker worm
Asynchronous Transfer Mode
What range is a class B network?
What range is a class A network?
43. A low end firewall that can quickly be deployed using existing hardware. They examine packets themselves with no content.
Remote maintenance
What categories do vulnerabilities fall into?
Stateless packet filter
To establish a TCP session
44. It makes sure the data sent from one side to the other is in a format useful to the other side
The presentation layer
What ways should the crypto key be protected?
The OSI model
Trojan horse
45. An attempt to gain access by bombarding it with guesses until the password is found.
Some reasons to use UDP over TCP
Address Resolution Protocol (ARP)
Some common UDP ports
Brute force
46. 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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47. Attempt to manipulate or trick a person into providing information or access - bypass network security by exploiting humans - vector is often outside attack by telephone or visitor inside
Port scan
Social engineering
Rootkit
LAN
48. 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
Bridge
When setting up a virtual circuit
Some network design objectives
HIDS monitor
49. Simplest form of a research honeypot - useful in identifying nature of TCP scans - allows attacker to complete 3-way handshake - listens on a defined port - logs incoming requests for analysis
Anomaly analysis work
LAN
Smurf attack
A netcat listener
50. Trivial File Transfer Protocol - method to transfer files from one device to another without needing authentication
Trojan horse
Vulnerabilities
File Integrity checking work
TFTP