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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. Most commonly used transport protocol today - ensures reliable packet delivery - has error handling built in
Worms
WAN
Some NIDS topology limitations
Overview of TCP
2. 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
File integrity checking work
Plaintext
Macro virus
Log monitoring work?
3. Prepends to the beginning of the file and gains control when the first instruction of the infected COM file is executed - appending to the end - virus writes its payload to the end and inserts jump instruction as the first instruction - which execute
SQL Slammer Worm
COM/Script program infector
Some malware propagation techniques
Firewall
4. Relies on executable code insertion and user interaction to spread
Overview of TCP
Nmap
The Uniform Protection to defense in depth
Parasitic malware
5. Allows admins to remotely access a system for troubleshooting. - E.g VNC - GoToMyPc - PC Anywhere
Remote maintenance
Firewall
Internet
NIDS challenges
6. It interacts with the application layer to determine which network services will be required
File Integrity checking work
the application layer
Hping
SQL Slammer Worm
7. Message in its encrypted form
Browsing attack
IDS not
Ciphertext
Datagram length of a UDP packet
8. NTP - BootP/DHCP - NFS file systems - SNMP - TFTP
Integrity of Data
Some firewall challenges
Some other UDP based protocols
NAC
9. Slow - requires stateful data tracking - inspects all fields - including variable-length fields
Denial of service
The threat vector analysis in defense in depth
ATM work
Deep packet inspection
10. Maintains complete TCP connection state and sequencing through 2 connections - address translation built-in by virtue of second connection above
Bus Topology
What range is a class C network?
Integrity of Data
Proxy or application gateway
11. Confidentiality - symmetric encryption
Honeyd
Types of ATM virtual circuits
The goals of cryptography
Trojan horse
12. One is for talking - one is for implementing
When implementing protocols - what stack should be used?
Bridge
The difference in stacks
Some NIDS topology limitations
13. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability
Browsing attack
Some disadvantages of honeypots
What's a VLAN
Honeyd
14. Strips OS commands and characters from input - avoid making system calls from within the app * especially based on user input
Trojan horse
NIDS challenges
Some other UDP based protocols
OS Command Injection defenses
15. 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 conficker worm
Boot record infector
OS Command Injection defenses
16. destruction of data - leaking confidential information - providing backdoor access
NIDS advantages
WAN
Internet
Some malware capabilities
17. Resource exhaustion like DDoS or fork attack - unexpected input value the machine does not know how to process
Some network design objectives
Risk
Denial of service
Some Pen Test techniques
18. 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
The network layer
Some firewall benefits
Social engineering
Router
19. 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.
Some malware propagation techniques
Nmap scanning techniques
Smurf attack
Some types of malicious code
20. Threat requires a vector to cross the vulnerability - stop the ability of the threat to use the vector
The TCP/IP model
Honeyd
Types of ATM virtual circuits
The threat vector analysis in defense in depth
21. 53 bytes - 48 bytes for data - 5 bytes for the header
NIDS challenges
Total cell size for asynchronous transfer mode (ATM)
IDS
Honeypot
22. Unified data carrying service - replacing from replay and ATM
Multi protocol label switching
Anomaly analysis work
Denial of service
Some external threat concerns
23. removable media - email attachments - web browsing - social networking - network vulnerabilities - IM applications - p2p
Some firewall challenges
Some malware propagation techniques
Overview of TCP
Some FTP dangers
24. Malware - insider threat - natural disaster - terrorism - pandemic
What primary threats should be protected against
Some firewall challenges
LAN
PAN
25. Application layer attacks may get through - dialup - VPN - extranet connections may bypass firewalls
Some firewall challenges
The four basic approaches to defense in depth
ACK piggybacking
When implementing protocols - what stack should be used?
26. Combines the functionality of a hub and bride into a single device - keeps track of MACs attached to each port
Some Pen Test techniques
Arbitrary substitution
Best way to protect wireless networks
Switches
27. Worms and Wireless - modems - tunnel anything through HTTP - social engineering
Alteration of code
Vulnerabilities
Some ways to bypass firewall protections
The network layer
28. The practice of sending an ACK inside another packet going to the same destination
What primary threats should be protected against
What range is a class A network?
ACK piggybacking
Social engineering
29. When someone has compromised the integrity of data or a program. Allows attackers to create backdoors.
Honeypot
Alteration of code
Permutation
Switches
30. A TCP version of ping - sends custom TCP packets to a host and listens for replies - enables port scanning and spoofing simultaneously
Ack Piggybacking
Hping
Shallow packet inspection
Trojan horse
31. ATM supports two types of virtual circuits: permanent virtual circuits and switches virtual circuit - PVC is set up in advance - usually manually - SVC is established automatically through a signaling protocol and can be created on the fly - establis
UDP packet headers
The difference in stacks
To establish a TCP session
Types of ATM virtual circuits
32. Outside attack from network - Outsider attack from telephone - Insider attack from local network - insider attack from local system - attack from malicious code
The five threat vectors
Arbitrary substitution
Address resolution protocol
Nmap scanning techniques
33. 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
Worms
Bus Topology
Integrity of Data
A blind FTP
34. UDP based infection - infected through vulnerability in SQL server - caused DoS on saturated networks
To establish a TCP session
SQL Slammer Worm
What range is a class C network?
Some external threat concerns
35. Anonymous FTP - FTP passes through clear text - Bounce attacks with the PORT command - user can cause an FTP to open a connection from the FTP's own commands and bypass a firewall
Some FTP dangers
Total cell size for asynchronous transfer mode (ATM)
War Dialing
The TCP/IP model
36. local area network - small network confined to small location - all equipment owned by a single entity - vulnerable to inside threats and logic bombs
IDS
What's a VLAN
Rootkit
LAN
37. 1. physical 2. data 3. network 4. transport 5. session 6. presentation 7. application
The OSI model
Checksum in UDP
The OSI Protocol Stack
The threat vector analysis in defense in depth
38. It makes sure the data sent from one side to the other is in a format useful to the other side
Denial of service
Some other UDP based protocols
The presentation layer
Bus Topology
39. Most common approach - firewall - VPN - intrusion detection - AV - disk encryption - all parts of the organization receive equal protection - particularly vulnerable to malicious inside attacks
Some NIDS topology limitations
Anomaly analysis work
The Uniform Protection to defense in depth
Wardriving
40. Physical layer - Data link layer - Network Layer - Transport Layer - Session Layer - Presentation Layer - Application Layer
The OSI model
Snort
Kismet
The different cable categories
41. Isolates systems when they initially connect to the network - allows systems to be scanned and checked prior to being put on a trusted segment
The OSI model
NAC
What's a VLAN
The transport layer
42. Bits of code embedded in programs to quickly gain access at a later time
Some external threat concerns
Datagram length of a UDP packet
DDoS attack
Trap door
43. 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
Network stumbler
A netmask
ATM work
LAN
44. flags anomalous conditions in traffic on the network - requires understanding on what is normal - bases good traffic as a baseline
Anomaly analysis work
COM/Script program infector
WAN
Nmap scanning techniques
45. Trying to ID modems in a telephone exchange that may be susceptible to compromise
Browsing attack
War Dialing
IDS data normalization
Honeypot
46. Uniform protection - protected enclaves - information centric - threat vector analysis
The four basic approaches to defense in depth
IDS signature analysis work
What range is a class A network?
SQL Slammer Worm
47. 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
Some firewall benefits
File integrity checking work
Bus Topology
Macro virus
48. A cracking tool inserted into the OS that allows the attacker to do as they please.
Rootkit
Arbitrary substitution
The Uniform Protection to defense in depth
A netmask
49. Work groups that require additional protection are segmented from the rest of the internal organization - restricting access to critical segments - system of VPNs - internal firewall - VLANs and ACLs
What's an easy way to test encryption?
The protected enclave to defense in depth
HIDS monitor
Smurf attack
50. Protected at rest - protected in transit - secure the key
Some reasons to use UDP over TCP
What ways should the crypto key be protected?
Ack Piggybacking
Some malware capabilities