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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. Type of firewall that lies between the perimeter router and and LAN.
Point-To-Point Tunneling Protocol (PPTP)
Attenuation
Commonly used in Ethernet.
Screened Host Firewall
2. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Switched Virtual Circuit (SVC)
Point-To-Point Tunneling Protocol (PPTP)
Session Initiation Protocol (SIP)
Ring Topology
3. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Channel Service Unit/Data Service Unit (CSU/DSU)
Asynchronous Transfer Mode (ATM)
Packet Filtering Firewall
OSI Layer 6: Presentation
4. Type of network layout that is a large geographical region connecting more that one LAN.
Wide Area Network (WAN)
Coaxial Cables
Fiber Distributed Data Interface (FDDI)
802.11
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.
ARP Poisoning
DOS attacks from flooding
Definition of Protocol
10baseT
6. Type of topology where computers all are connected to each other - which provides redundancy.
Permanent Virtual Circuit (PVC)
Cable Modem
Commonly used in Internet.
OSI Layer 4: Transport Layer
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.
Wide Area Network (WAN)
Bridge
OSI Layer 4: Transport Layer
Service Set ID (SSID)
8. Type of network layout that separates and group computers logically.
Noise
VLAN
Distributed Environment Challenge
Commonly used in FDDI.
9. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
OSI Layer 5: Session Layer
Extensible Authentication Protocol (EAP)
FDDI-2
Attenuation
10. OSI layer 2 Sub-layers. The first provides a standard interface for the network protocol being used. The second provides a standard interface for the physical layer protocol being used.
LLC (Logical Link Control - 802.2)
T1
Frame Relay
Packet Switching
11. Strengths of a type of firewall: Better security than packet filtering. Looks at all info in the packet - up to the application layer. Breaks the connection between trusted and untrusted systems. Weaknesses include limited number of applications supp
Spread Spectrum
Open System Authentication (OSA)
Proxy Firewall Strengths
OSI Layer 7: Application
12. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Challenge Handshake Authentication Protocol (CHAP)
OSI Layer 5: Session Layer
802.11
Shared Key Authentication (SKA)
13. Network segment name for a DMZ created by two physical firewalls.
Screened Sub-Net
Dedicated Links
IPv6
Temporal Key Integrity Protocol (TKIP)
14. Used when a LAN device needs to communicate with WAN devices over telephone lines. Ensures the necessary electrical signaling and format are used. Interfaces with Data Terminal Equipment (DTE) and Data Circuit-Terminal Equipment (DCE).
Channel Service Unit/Data Service Unit (CSU/DSU)
Asynchronous Transfer Mode (ATM)
Isochronous Communication Processes
Synchronous Optical Networks (SONETS)
15. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
Ring Topology
Noise
LLC (Logical Link Control - 802.2)
T1
16. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Committed Information Rate (CIR)
Multilevel Switching
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Synchronous Optical Networks (SONETS)
17. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
Subnetting
T3
Wide Area Network (WAN)
ThinNet - aka 10base2
18. 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.
Layer 2 Tunneling Protocol (L2TP)
Point-To-Point Tunneling Protocol (PPTP)
Commonly used in logical bus - Ethernet - token ring.
Integrated Services Digital Network (ISDN)
19. If the packet header information is used to determine destinations rather than the routes configured into the router. Packets with this information should be dropped.
Source Routing
Metropolitan Area Network (MAN)
Bluejacking
Bastion Host
20. Both directions - only one application can send information at a time
Packet Switching
Committed Information Rate (CIR)
Half-Duplex
802.11b
21. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Shared Key Authentication (SKA)
Repeaters
Bus Topology
Point-To-Point Tunneling Protocol (PPTP)
22. Older LAN implementation that uses a token-passing technology. Can send a beacon frame to indicate that a certain computer is failing and its neighbors should reconfigure and work around the detected fault.
Temporal Key Integrity Protocol (TKIP)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Token Passing
Token Ring (802.5)
23. 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
Simplex: One direction.
UDP
Temporal Key Integrity Protocol (TKIP)
24. A WAN protocol that works at the data link layer and performs packet switching. Economical choice because the fee is based on bandwidth usage rather than a dedicated pipeline.
Synchronous Data Link Control (SDLC)
Star Topology
Frame Relay
Bus Topology
25. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
IPv6
Wired Equivalent Privacy (WEP)
Pulse Code Modulation (PCM)
Serial Line Internet Protocol (SLIP)
26. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Full-Duplex
Metropolitan Area Network (MAN)
T3
Layers in the OSI Model
27. Type of wireless security standard that uses AES in CBC mode.
X.25
ARP (Address Resolution Protocol)
CBC-MAC Protocol (CCMP)
Circuit Level Proxy Firewall
28. New variant to traditional email spam on VoIP networks.
Wired Equivalent Privacy (WEP)
Layers in the OSI Model
Spam over Internet Telephony (SPIT)
Trunk Lines
29. Type of LAN and MAN technology - usually used for backbones - that uses token-passing technology and has redundant rings in case the primary ring goes down.
Commonly used in logical bus - Ethernet - token ring.
Dynamic Packet Filtering
Ethernet (802.3)
Fiber Distributed Data Interface (FDDI)
30. 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.
Bluejacking
OSI Data encapsulation
Commonly used in FDDI.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
31. Protocol that transfers data in fixed cells (53 bytes) - is a WAN technology - and transmits data at very high rates. Supports voice - data - and video applications.
Asynchronous Transfer Mode (ATM)
Bastion Host
Application Proxy Firewall
Trunk Lines
32. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Bus Topology
LLC (Logical Link Control - 802.2)
Packet Switching
Service Set ID (SSID)
33. 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.
Circuit Switching
Isochronous Communication Processes
Virtual Private Network (VPN)
Fiber Distributed Data Interface (FDDI)
34. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
Synchronous Communication
Private Branch Exchange (PBX)
Digital Subscriber Line (DSL)
Pulse Code Modulation (PCM)
35. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
10baseT
Frame Relay
Classless inter-domain routing (CIDR)
Channel Service Unit/Data Service Unit (CSU/DSU)
36. 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.
Plenum-rated Cables
OSI Layer 6: Presentation
ThinNet - aka 10base2
OSI Layer 2: Data Link Layer
37. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
Wide Area Network (WAN)
Crosstalk
Password Authentication Protocol (PAP)
OSI Layer 4: Transport Layer
38. 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.
Challenge Handshake Authentication Protocol (CHAP)
Asynchronous Communication
Layers in the OSI Model
Distributed Environment Challenge
39. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Noise
Dedicated Links
Tree Topology
Asynchronous Transfer Mode (ATM)
40. Protocol that increases address size from 32 bits to 128 bits
IPv6
T1
Ring Topology
Crosstalk
41. Set of rules that dictates how computer communicate over networks.
802.11i
Definition of Protocol
IPSec
Commonly used in logical bus - Ethernet - token ring.
42. Protocol that works at the network layer and informs hosts - routers - and devices of network or computer problems. It is the major component of the ping utility.
Subnetting
ICMP (Internet Control Message Protocol)
Layers in the OSI Model
Star Topology
43. Type of firewall that keeps track of each communication session. It must maintain a state table that contains data about each connection. 3rd generation firewall - runs at the network layer.
Stateful Firewall
Private Branch Exchange (PBX)
ARP (Address Resolution Protocol)
Star Topology
44. Network where a virtual connection that acts like a dedicated link between two systems is set up. Traffic travels in a predictable and constant manner. Example - telephone.
Dedicated Links
Circuit Switching
ThickNet - aka 10base5.
802.15
45. 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.
ThinNet - aka 10base2
Star Topology
DOS attacks from flooding
Synchronous Data Link Control (SDLC)
46. In a token ring network - each computer is connected to this - which acts as a central hub.
Multistation Access Unit (MAU)
Challenge Handshake Authentication Protocol (CHAP)
Commonly used in logical bus - Ethernet - token ring.
Port Numbers
47. Standard that outlines wireless personal area network (WPAN) technologies.
802.16
802.11a
802.15
DNS (Domain Name System)
48. 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).
Layers in the OSI Model
Twisted Pair Cables
Token Ring (802.5)
Serial Line Internet Protocol (SLIP)
49. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Direct Sequence Spread Spectrum (DSSS)
Repeaters
VoIP
Source Routing
50. 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
Asynchronous Transfer Mode (ATM)
Switch
10baseT
Commonly used in FDDI.