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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. Attacks systems through known vulnerabilities - automatically scans for more systems to attack - lowers system defenses - installs rootkit or root shell - opens up back doors - self contained malware that can copy itself
What threats should be protected against - based on threat levels
Rotation?
Worms
Some reasons to use UDP over TCP
2. Attaches itself to existing program files and activated when the exe is launched
Some NIDS topology limitations
Smurf attack
Parasitic malware
Program infector
3. OSI
Some network design objectives
When talking about protocols and referencing layers - what stack is used
Some other UDP based protocols
NIDS advantages
4. Maintains complete TCP connection state and sequencing through 2 connections - address translation built-in by virtue of second connection above
Proxy or application gateway
Deep packet inspection
What range is a class C network?
Bridge
5. Relies on executable code insertion and user interaction to spread
The four basic approaches to defense in depth
Some Pen Test techniques
Parasitic malware
What range is a class B network?
6. Personal area network - phone tethering - bluetooth - etc
PAN
IDS signature analysis work
Denial of service
UDP packet headers
7. TCP/IP - the IP protoco - The core routing protocol of the internet - - deals with transmission of packets between end points - defines the addressing scheme for the internet
When implementing protocols - what stack should be used?
What range is a class A network?
Bus Topology
Arbitrary substitution
8. removable media - email attachments - web browsing - social networking - network vulnerabilities - IM applications - p2p
The OSI model
3-way handshake
Some malware propagation techniques
IDS not
9. An attempt to gain access by bombarding it with guesses until the password is found.
WAN
What primary threats should be protected against
Brute force
The transport layer
10. Connection oriented - before systems can communicate over an ATM network - they must establish a virtual circuit between each other - this can span across multiple ATM switches that also handle communications for other systems - at the end of the con
The five threat vectors
Some common TCP ports
Macro virus
ATM work
11. Identify critical assets and provide layered protection - data is accessed by applications - applications reside on hosts - hosts operate on networks
Browsing attack
The Information Centric defense in depth
Some honeypot advantages
LAN
12. The Practice of sending an ACK inside another packet going to the same destination
Ack Piggybacking
Bus Topology
Some types of malicious code
Ciphertext
13. Malware - insider threat - natural disaster - terrorism - pandemic
ATM work
What primary threats should be protected against
Vulnerabilities
Anomaly analysis work
14. It interacts with data and prepares it to be transmitted across the network. It ensures reliable connectivity from end-to-end
What range is a class C network?
3-way handshake
The transport layer
What range is a class B network?
15. Metropolitan area network - spans across city or town - larger than a LAN - uses fiber for backbone
IDS not
The Uniform Protection to defense in depth
War Dialing
MAN
16. open source tool for monitoring - can be used as a NIDS - has quick updates and flexibility for custom rules
The different cable categories
Snort
Ack Piggybacking
Types of ATM virtual circuits
17. Network scanner.
Datagram length of a UDP packet
Social engineering
Some common TCP ports
Nmap
18. CIDR is a shorthand way of specifying which portion of the address is the network - and which portion is the host
A blind FTP
CIDR
Port scan
Wardriving
19. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability
Some external threat concerns
Some disadvantages of honeypots
Some firewall challenges
What's an easy way to test encryption?
20. A hash is produced when applied to a monitored file. The hash always generates the same value unless a change was made. HIDS software checks the hashes of monitored files and if a change is found - analyst is notified. - ie: tripwire
Some Pen Test techniques
Honeypot
File Integrity checking work
Proxy or application gateway
21. An FTP that allows downloads only if the user knows the exact name of the file they're looking for
When implementing protocols - what stack should be used?
A blind FTP
Some malware propagation techniques
The presentation layer
22. 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.
Denial of service
Overview of TCP
Integrity of Data
Race conditions
23. Used for connecting two physical segments of a network - segments traffic - breaks up collision domains - not generally used because of switches
A network protocol
Bridge
NIDS advantages
Internet
24. 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
ATM work
WAN
Bus Topology
Snort
25. FIN 130 - ACK 131 - FIN 570 - ACK 571
Bus Topology
To close a TCP session
ATM work
Nmap
26. 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
Integrity of Data
Parasitic malware
Some reasons to use TCP over UDP
EXE program infector
27. Replicates traffic onto all ports - no traffic monitoring - cannot control which ports should or shouldn't receive frames - forming a large collision domain.
What primary threats should be protected against
Permutation
Hubs
ATM work
28. Uses inclusive or exclusive lists - inclusive analysis utilizes a list of keywords - exclusive analysis utilizes a list of events that can be ignored
Stateful firewall
Asynchronous Transfer Mode
Log monitoring work?
Boot record infector
29. Not a replacement for firewalls - hardening - strong policies - or other DiD methods - low maintenance - inexpensive
IDS not
NAC
The difference in stacks
Boot record infector
30. Four layers - Network Layer - Internet Layer - Transport Layer - Application layer
The TCP/IP model
Program infector
Rotation?
Brute force
31. Combines the functionality of a hub and bride into a single device - keeps track of MACs attached to each port
The session layer
Switches
Trap door
The TCP/IP model
32. Allows admins to remotely access a system for troubleshooting. - E.g VNC - GoToMyPc - PC Anywhere
Nmap
OS Command Injection defenses
Remote maintenance
Nmap scanning techniques
33. 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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34. free windows based wireless scanner for 802.1b - detects access point settings - supports GSP integration - identifies networks as encrypted or unencrypted
Network stumbler
COM/Script program infector
the application layer
A netmask
35. One is for talking - one is for implementing
MAN
Vulnerabilities
Browsing attack
The difference in stacks
36. 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
Deep packet inspection
Types of viruses
LAN
37. A list of files is defined that should be monitored for a change - HIDS software calculates a one-way hash for each file - if a change is made to the file - the hash is changed
NAC
Hubs
File integrity checking work
The physical layer stack
38. Means multiple iterations won't matter. If you encrypt with a key - then re-encrypt - it's the same as using one key.
Honeypot
Group
The network layer
Permutation
39. 53 bytes - 48 bytes for data - 5 bytes for the header
Hubs
Total cell size for asynchronous transfer mode (ATM)
Port scan
NAC
40. It makes sure the data sent from one side to the other is in a format useful to the other side
The presentation layer
The protected enclave to defense in depth
Asynchronous Transfer Mode
When talking about protocols and referencing layers - what stack is used
41. Going around with equipment to detect wireless networks
the application layer
Parasitic malware
Some reasons to use TCP over UDP
Wardriving
42. Multiple levels of protection must be deployed - an exercie in detection - measures must be across a wide range of controls - compromises happen when people leave sites - risk - CIA triad - strategies
the application layer
Defense in depth
A blind FTP
EXE program infector
43. fast - with little fidelity - examines header information and limited payload data
Program infector
Shallow packet inspection
Wardriving
IDS
44. risk = threat x vulnerability - impossible to eliminate - security is an exercise in loss reduction
A blind FTP
Rotation?
IDS data normalization
Risk
45. 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
Brute force
Some network design objectives
The conficker worm
Group
46. -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
The TCP/IP model
Some external threat concerns
Brute force
The OSI Protocol Stack
47. Connects the physical part of the network (cables) with the abstract (packets and datastreams)
File Integrity checking work
Network stumbler
The data link layer
Ack Piggybacking
48. It handles the establishment and maintenance of connections between systems
Risk
The four types of events reported by IDS
The session layer
Some types of malicious code
49. Network traffic to the host - typically listens on all interface - uses signature analysis to identify events of interest
HIDS monitor
SQL Slammer Worm
COM/Script program infector
The network layer
50. Protects internal/external systems from attack - filters communications based on content - performs NAT - encrypts communications for VPN - logging to aid in intrusion detection
Some malware propagation techniques
the application layer
Some firewall benefits
Kismet