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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. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
Kernel Proxy Firewall
Layers in the OSI Model
OSI Layer 6: Presentation
Distributed Environment Challenge
2. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
DNS (Domain Name System)
Metropolitan Area Network (MAN)
Subnetting
Coaxial Cables
3. Protocol that translates IP address into a MAC address (physical Ethernet address)
Cable Modem
Synchronous Optical Networks (SONETS)
IPv6
ARP (Address Resolution Protocol)
4. 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.
Virtual Private Network (VPN)
Mesh Topology
Temporal Key Integrity Protocol (TKIP)
OSI Layer 4: Transport Layer
5. 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.
Serial Line Internet Protocol (SLIP)
ARP Poisoning
Frame Relay
Temporal Key Integrity Protocol (TKIP)
6. Type of firewall that looks at header information to make decisions on whether a packet is deemed acceptable. This type does not look as deep within the packet as an application level proxy - runs at the session layer.
Port Numbers
Noise
Committed Information Rate (CIR)
Circuit Level Proxy Firewall
7. Type of firewall that is also know as a screening router and is accomplished by ACL's (Lines of text called rules). Traffic can be filtered by address - ports - and protocol types. 1st generation firewall - runs at the network layer.
Packet Filtering Firewall
Bridge
Fiber-optic Cables
SPIM
8. Both directions - both applications can send information at a time. Session Layer Communication Modes
Full-Duplex
Router
Packet Switching
Serial Line Internet Protocol (SLIP)
9. 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
Ethernet (802.3)
Frame Relay
Wired Equivalent Privacy (WEP)
10. More complexity and drastically increases the difficultly of access control. Many different devices - services - and users make it difficult to know which entities to trust and to what degree.
LLC (Logical Link Control - 802.2)
Distributed Environment Challenge
Fiber Distributed Data Interface (FDDI)
Repeaters
11. Type of cabling problem signals from one wire crossing over to another wire.
Crosstalk
Half-Duplex
IPSec
10baseT
12. Protocol that increases address size from 32 bits to 128 bits
IPv6
Layer 2 Tunneling Protocol (L2TP)
Packet Filtering Firewall
Fiber-optic Cables
13. 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.
Spread Spectrum
Switched Virtual Circuit (SVC)
Reverse Address Resolution Protocol (RARP )
Asynchronous Communication
14. Communication process that must deliver data with set time constraints. Applications are typically video related where audio and must match perfectly. VoIP is another example.
Definition of Protocol
ARP Poisoning
802.15
Isochronous Communication Processes
15. Device used within companies to provide multiple services to users throughout a building or facility. Example - dialing 9 to place outbound phone calls. Security concerns: default configurations and passwords - maintenance modems disabled - unused co
Private Branch Exchange (PBX)
Coaxial Cables
Challenge Handshake Authentication Protocol (CHAP)
Token Ring (802.5)
16. OSI layer that provides physical connections for transmission and performs the electrical encoding of data. This layer transforms bits to electrical signals. Protocols at this level HSSI (High Speed Serial Interface) - X.21 - EIA/TIA 232 and 449.
OSI Layer 1: Physical
Multistation Access Unit (MAU)
Reverse Address Resolution Protocol (RARP )
CBC-MAC Protocol (CCMP)
17. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Attenuation
Temporal Key Integrity Protocol (TKIP)
Point-To-Point (PPP)
OSI Layer 1: Physical
18. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Full-Duplex
VoIP
Bus Topology
OSI Layer 4: Transport Layer
19. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
LLC (Logical Link Control - 802.2)
Iterated Association
Reverse Address Resolution Protocol (RARP )
Isochronous Communication Processes
20. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
Point-To-Point (PPP)
OSI Layer 6: Presentation
Wired Equivalent Privacy (WEP)
Router
21. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Packet Filtering Firewall
Circuit Level Proxy Firewall
T1
Classless inter-domain routing (CIDR)
22. Type of firewall that Inspects incoming/outgoing messages for malicious information. If approved - transfers an isolated copy from one network to another. 2nd generation firewall.
Trunk Lines
Proxy Firewall
OSI Layer 3: Network Layer
Router
23. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
Synchronous Communication
Commonly used in Ethernet.
ThickNet - aka 10base5.
Commonly used in Internet.
24. 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.
Cable Modem
T3
OSI Layer 6: Presentation
Virtual Private Network (VPN)
25. 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.
802.15
Pulse Code Modulation (PCM)
Metropolitan Area Network (MAN)
Layer 2 Tunneling Protocol (L2TP)
26. Type of network layout that separates and group computers logically.
802.11
Asynchronous Communication
VLAN
Carrier sense multiple access with collision detection (CSMA/CD)
27. Type of backbone network that joins together LAN to other LANs and WANs to LANs - etc. Typically known as Synchronous Optical Networks (SONETS) or FDDI rings.
DNS (Domain Name System)
Metropolitan Area Network (MAN)
Packet Switching
Distributed Environment Challenge
28. Network where a dedicated virtual link is not set up - and packets can use many different dynamic paths to get to the same destination. This causes variable delays. Examples are frame relay and X.25
Wired Equivalent Privacy (WEP)
Packet Switching
Session Initiation Protocol (SIP)
Ethernet (802.3)
29. 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.
X.25
Carrier sense multiple access with collision detection (CSMA/CD)
Wired Equivalent Privacy (WEP)
Full-Duplex
30. 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).
Open Relay
Source Routing
Multilevel Switching
Frame Relay
31. Protocol for allowing multi-cast (one to many) communication
High Level Data Link Control (HLDC)
IGMP
SPIM
Blue Boxing
32. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Password Authentication Protocol (PAP)
10baseT
DNS (Domain Name System)
Shared Key Authentication (SKA)
33. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
Wired Equivalent Privacy (WEP)
T1
Session Initiation Protocol (SIP)
Switch
34. Wireless communication that splits total amount of bandwidth into smaller sub-channels. Send and receiver work in one of the channels for a period of time - and then move into a different channel. It uses a portion of the bandwidth - throughput of 1-
Dynamic Packet Filtering
Frequency Hopping Spread Spectrum (FHSS)
Attenuation
Application Proxy vs. Circuit Level
35. In a token ring network - each computer is connected to this - which acts as a central hub.
Point-To-Point (PPP)
Open System Authentication (OSA)
Loki Attack
Multistation Access Unit (MAU)
36. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Shared Key Authentication (SKA)
Classless inter-domain routing (CIDR)
T3
LLC (Logical Link Control - 802.2)
37. Standard that outlines wireless personal area network (WPAN) technologies.
Password Authentication Protocol (PAP)
802.15
Repeaters
Blue Boxing
38. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Direct Sequence Spread Spectrum (DSSS)
Open System Authentication (OSA)
Commonly used in logical bus - Ethernet - token ring.
Mesh Topology
39. Type of topology where computers all are connected to each other - which provides redundancy.
Spam over Internet Telephony (SPIT)
High Level Data Link Control (HLDC)
Multilevel Switching
Commonly used in Internet.
40. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
Blue Boxing
Password Authentication Protocol (PAP)
Commonly used in Internet.
SOCKS Firewall
41. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Commonly used in Ethernet.
Frame Relay
Committed Information Rate (CIR)
DNS (Domain Name System)
42. Wireless standard that will improve security of wireless communication
Spread Spectrum
802.11i
Packet Filtering Firewall
Iterated Association
43. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
Network Address Translator (NAT)
Temporal Key Integrity Protocol (TKIP)
T3
Bastion Host
44. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
OSI Layer 3: Network Layer
Serial Line Internet Protocol (SLIP)
Session Initiation Protocol (SIP)
Wireless Application Protocol (WAP)
45. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Bluejacking
DOS attacks from flooding
Pulse Code Modulation (PCM)
TCP
46. Network segment name for a DMZ created by two physical firewalls.
Proxy Firewall
Bluejacking
Carrier sense multiple access with collision detection (CSMA/CD)
Screened Sub-Net
47. Proprietary protocol that enables secondary devices to communicate with primary stations or mainframes in an IBM architecture. Developed in the mid-70's for use in a systems network architecture (SNA) environment. First synchronous - link layer - bit
Layers in the OSI Model
Synchronous Data Link Control (SDLC)
SPIM
DOS attacks from flooding
48. 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.
Proxy Firewall
VoIP
Point-To-Point Tunneling Protocol (PPTP)
Half-Duplex
49. Identifys a WLAN. Can be used to segment environments into different WLANS.
Fiber-optic Cables
Point-To-Point Tunneling Protocol (PPTP)
Service Set ID (SSID)
Extensible Authentication Protocol (EAP)
50. These are used to connect multiple switches for traffic of the same classification. Example - two voice switches at a local phone company's central office.
Permanent Virtual Circuit (PVC)
Bastion Host
Trunk Lines
Frame Relay