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Test your basic knowledge |
CISSP Telecom And Network Security
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Subjects
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certifications
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it-skills
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cissp
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. Strengths of a type of Stateful Firewall: High security - better performance than an application firewall. Weaknesses include more complex - ___________ - if rebooted all information is lost.
DOS attacks from flooding
Ring Topology
ARP Poisoning
Screened Host Firewall
2. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
OSI Layer 1: Physical
Digital Subscriber Line (DSL)
802.11a
Packet Filtering Firewall
3. Altering an ARP table so an IP address is mapped to a different MAC address. Results in traffic being routed to an attacker's computer.
Wireless Application Protocol (WAP)
802.16
Open Relay
ARP Poisoning
4. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
OSI Layer 5: Session Layer
Point-To-Point (PPP)
Open Relay
High Level Data Link Control (HLDC)
5. Protocol that translates a MAC address into an IP address.
Crosstalk
Fiber-optic Cables
Reverse Address Resolution Protocol (RARP )
Frame Relay
6. Protocol that increases address size from 32 bits to 128 bits
OSI Layer 2: Data Link Layer
OSI Layer 7: Application
IPv6
Ring Topology
7. Type of network device that divides networks into more controllable segments to ensure more efficient use of bandwidth. Works at the data link layer and understands MAC addresses - not IP addresses.
Bridge
Dedicated Links
ARP Poisoning
Half-Duplex
8. Both directions - only one application can send information at a time
T1
OSI Layer 6: Presentation
Half-Duplex
Full-Duplex
9. A packet switching technology that is used by telecommunication services for data-only traffic. It is a subscriber based service that operates within the network and data link layers.
X.25
Channel Service Unit/Data Service Unit (CSU/DSU)
Digital Subscriber Line (DSL)
Star Topology
10. OSI layer that provides end to end transmission between computer systems. Protocols that use this layer are TCP (Transmission Control Protocol) - UDP (User Datagram Protocol) - SPX (Sequenced Packet Exchange) - and SSL.
OSI Layer 4: Transport Layer
Open Relay
Committed Information Rate (CIR)
Multilevel Switching
11. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Bluejacking
Distributed Environment Challenge
Shared Key Authentication (SKA)
OSI Layer 1: Physical
12. VPN protocol that works at the data link layer - can only run in IP networks - and provides encryption and encapsulation. This is Microsoft's VPN solution.
Switched Virtual Circuit (SVC)
Point-To-Point Tunneling Protocol (PPTP)
Password Authentication Protocol (PAP)
Service Set ID (SSID)
13. Type of cable where STP and UTP (shielded and unshielded) cables are the most popular - cheapest - and easiest to work with. However - easiest to tap into - have cross talk issues - and are vulnerable to electromagnetic interference (EMI).
Packet Switching
Tree Topology
Twisted Pair Cables
FDDI-2
14. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Attenuation
Bluejacking
Packet Filtering Firewall
802.15
15. Type of firewall that uses a proxy for each service and can understand and make decisions on the protocols used and the commands within those protocols - runs at the application layer.
Trunk Lines
Application Proxy Firewall
Source Routing
Open System Authentication (OSA)
16. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Packet Switching
UDP
T1
Wide Area Network (WAN)
17. OSI layer that formats data into a standardized format and deals with the syntax of data - not the meaning. Example formats are ASCII - GIF - JPG - MPEG.
DNS (Domain Name System)
Wide Area Network (WAN)
OSI Layer 6: Presentation
Synchronous Data Link Control (SDLC)
18. Type of cable that carries data as light waves - expensive - can transmit data at high speeds - difficult to tap into - and is resistant to EMI. Most secure cabling option - but vulnerable to dispersion.
Fiber-optic Cables
OSI Layer 5: Session Layer
Digital Subscriber Line (DSL)
Password Authentication Protocol (PAP)
19. Network cabling that is placed in these types of areas must meet a specific fire rating. These cables typically have a jacked cover made of fluoropolymers.
Shared Key Authentication (SKA)
Plenum-rated Cables
10baseT
Cable Modem
20. Malware attack that sends commands inside of an ICMP packet.
Source Routing
Loki Attack
Dynamic Packet Filtering
802.11a
21. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
802.11b
ThickNet - aka 10base5.
Extensible Authentication Protocol (EAP)
Plenum-rated Cables
22. Security wireless standard that enables data transfers to be encrypted. Static encryption keys among clients - short 40 bit keys - RC4 encryption - ineffective use of 24 bit IV's - and no packet integrity.
Session Initiation Protocol (SIP)
OSI Layer 6: Presentation
Wired Equivalent Privacy (WEP)
Asynchronous Transfer Mode (ATM)
23. As they travel down the OSI model on the source computer - each layer adds its own information so the corresponding layer on the destination machine knows how to process the data.
Packet Filtering Firewall
Proxy Firewall Strengths
Classless inter-domain routing (CIDR)
OSI Data encapsulation
24. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
802.11b
Noise
Private Branch Exchange (PBX)
802.15
25. Communication devices that are not synchronized - meaning all devices can send data at will - send a sequence of bits framed with a start and stop bit.
TCP
Metropolitan Area Network (MAN)
Asynchronous Communication
Dual-Homed Firewall
26. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
802.11
Ring Topology
Private Branch Exchange (PBX)
Blue Boxing
27. Layer 3 - layer 4 - and other layer switches have more enhanced functionality than layer 2 switches. Combines switching and routing technologies - packet inspection - traffic prioritization - and quality of service (QoS).
Simplex: One direction.
Multilevel Switching
Asynchronous Transfer Mode (ATM)
Integrated Services Digital Network (ISDN)
28. Type of topology where computers all are connected to each other - which provides redundancy.
UDP
Proxy Firewall
Commonly used in Internet.
Wired Equivalent Privacy (WEP)
29. Type of firewall that lies between the perimeter router and and LAN.
Coaxial Cables
Point-To-Point (PPP)
Service Set ID (SSID)
Screened Host Firewall
30. A simplified version of X.25 - without the error checking that was done on the network. It handles error checking at the end node - which helps improve speed dramatically.
Frame Relay
OSI Layer 7: Application
Attenuation
Fiber Distributed Data Interface (FDDI)
31. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
Bridge
Kernel Proxy Firewall
Asynchronous Communication
Switch
32. This network technology determines which system will send data based on which one has the token.
Layers in the OSI Model
Fiber Distributed Data Interface (FDDI)
Token Passing
OSI Layer 2: Data Link Layer
33. Provides high-speed access - up to 50 Mbps - to the Internet through existing cable coaxial and fiber lines. Major security concern is the fact that neighbors use the same coaxial network and can monitor each others traffic.
Dynamic Packet Filtering
Cable Modem
VoIP
Token Passing
34. Type of authentication protocol that provides a framework to enable may types of authentication techniques to be used during PPP connections. It extends the possibilities to one-time passwords - token cards - biometrics - Kerberos - and digital certi
Blue Boxing
Digital Subscriber Line (DSL)
Screened Host Firewall
Extensible Authentication Protocol (EAP)
35. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
Bastion Host
TCP
Spam over Internet Telephony (SPIT)
Circuit Level Proxy Firewall
36. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Commonly used in FDDI.
Switched Virtual Circuit (SVC)
DNS (Domain Name System)
ThinNet - aka 10base2
37. Type of network layout that separates and group computers logically.
VLAN
ICMP (Internet Control Message Protocol)
Circuit Switching
Challenge Handshake Authentication Protocol (CHAP)
38. Standard that addresses wireless MAN technologies.
Packet Switching
802.16
Commonly used in FDDI.
Application Proxy Firewall
39. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
Spam over Internet Telephony (SPIT)
ThinNet - aka 10base2
Token Passing
SOCKS Firewall
40. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Repeaters
Full-Duplex
Screened Host Firewall
Session Initiation Protocol (SIP)
41. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
ARP (Address Resolution Protocol)
Crosstalk
Layers in the TCP/IP Model
Permanent Virtual Circuit (PVC)
42. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Point-To-Point Tunneling Protocol (PPTP)
Carrier sense multiple access with collision detection (CSMA/CD)
Dual-Homed Firewall
Network Address Translator (NAT)
43. Type of network device that allows different network segments and/or systems to communicate. When communication takes place - a dedicated connection is set up - so collision and broadcast data is not available to other devices. Combined repeater (hub
Remote Access Servers
Switch
Circuit Switching
Frequency Hopping Spread Spectrum (FHSS)
44. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Asynchronous Communication
OSI Layer 2: Data Link Layer
Layers in the OSI Model
Subnetting
45. VPN protocol that can run in other networks (frame relay - X.25 - ATM). Does not provide encryption - lacks the security to be called a true "VPN" solution.
Shared Key Authentication (SKA)
Layer 2 Tunneling Protocol (L2TP)
Point-To-Point (PPP)
Ethernet (802.3)
46. Type of topology that Uses linear single cable for all computers attached. All traffic travels full cable and can be viewed by all other computers.
Stateful Firewall
Commonly used in Ethernet.
Serial Line Internet Protocol (SLIP)
Session Initiation Protocol (SIP)
47. Problems: Central device is a single point of failure.
Star Topology
Wireless Application Protocol (WAP)
T1
OSI Data encapsulation
48. Uses tunneling protocols and encryption to provide a secure network connection between two network hosts. Private and secure connections can be made across an unsecured network. Example protocols are PPTP - L2TP - and IPSec.
Virtual Private Network (VPN)
OSI Layer 6: Presentation
IPv6
Attenuation
49. Protocol for allowing multi-cast (one to many) communication
Bluejacking
Password Authentication Protocol (PAP)
IGMP
Wireless Application Protocol (WAP)
50. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
Permanent Virtual Circuit (PVC)
Commonly used in FDDI.
Iterated Association
Half-Duplex