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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. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Packet Filtering Firewall
Network Address Translator (NAT)
Mesh Topology
SPIM
2. 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.
CBC-MAC Protocol (CCMP)
DOS attacks from flooding
Definition of Protocol
Network Address Translator (NAT)
3. 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.
Packet Filtering Firewall
802.11i
Star Topology
Point-To-Point Tunneling Protocol (PPTP)
4. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Temporal Key Integrity Protocol (TKIP)
ThinNet - aka 10base2
Definition of Protocol
Cable Modem
5. 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.
T1
Point-To-Point Tunneling Protocol (PPTP)
Session Initiation Protocol (SIP)
LLC (Logical Link Control - 802.2)
6. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
Bluejacking
Coaxial Cables
Crosstalk
Loki Attack
7. Type of wireless authentication where the device does not need to provide a key for authentication. Usually - only the SSID is required and plaintext transmission occurs.
ThickNet - aka 10base5.
IPSec
Open System Authentication (OSA)
OSI Layer 2: Data Link Layer
8. 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.
ICMP (Internet Control Message Protocol)
SOCKS Firewall
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Plenum-rated Cables
9. Type of network device that is the simplest type of connectivity because it only repeats and amplifies electric signals between cable segments. Works at the physical layer.
Layers in the TCP/IP Model
802.16
Repeaters
Bridge
10. 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.
OSI Layer 7: Application
Trunk Lines
Network Address Translator (NAT)
VoIP
11. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Spread Spectrum
Ethernet (802.3)
Application Proxy vs. Circuit Level
Ring Topology
12. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
T3
Application Proxy Firewall
Frame Relay
Bridge
13. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Serial Line Internet Protocol (SLIP)
Subnetting
Synchronous Data Link Control (SDLC)
T1
14. 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.
Wired Equivalent Privacy (WEP)
Ring Topology
Port Numbers
802.11b
15. Type of topology where computers all are connected to each other - which provides redundancy.
Bluejacking
SPIM
DNS (Domain Name System)
Commonly used in Internet.
16. Wireless communication that applies sub-bits to a message (chips) and the receiver uses the chips to re-assemble the message based on the chipping code. It uses all available bandwidth - high throughput of 11Mbps.
Attenuation
Layer 2 Tunneling Protocol (L2TP)
Direct Sequence Spread Spectrum (DSSS)
Open Relay
17. In the OSI layer 5 - these are the types of what?
Multi-protocol Label Switching
Simplex: One direction.
Digital Subscriber Line (DSL)
802.16
18. 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.
TCP
Frame Relay
OSI Layer 2: Data Link Layer
ThinNet - aka 10base2
19. Most expensive type of WAN connection because the fee is based on distance between the two points rather than the amount of bandwidth used. Examples - T1 and T3.
Bluejacking
Source Routing
Packet Filtering Firewall
Dedicated Links
20. 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.
Token Ring (802.5)
Ethernet (802.3)
Twisted Pair Cables
VLAN
21. 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.
Cable Modem
Plenum-rated Cables
Commonly used in FDDI.
Mesh Topology
22. Type of network layout that is a large geographical region connecting more that one LAN.
Carrier sense multiple access with collision detection (CSMA/CD)
Open Relay
Wired Equivalent Privacy (WEP)
Wide Area Network (WAN)
23. 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.
OSI Layer 2: Data Link Layer
Packet Filtering Firewall
T1
Application Proxy Firewall
24. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Repeaters
Layers in the OSI Model
Synchronous Data Link Control (SDLC)
Switch
25. Transmits high speed bandwidth over phone lines. Provides data rates up to 52 Mpbs using line of 1000 feet or less. Must be within 2.5 miles of a central office.
Wide Area Network (WAN)
Plenum-rated Cables
Token Passing
Digital Subscriber Line (DSL)
26. 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.
Bridge
OSI Layer 4: Transport Layer
Circuit Switching
Commonly used in logical bus - Ethernet - token ring.
27. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
ARP Poisoning
IPv6
Packet Filtering Firewall
Committed Information Rate (CIR)
28. Type of topology that uses a bus that does not have a one linear cable - but instead uses branches of cables. Commonly used in Ethernet.
Tree Topology
Commonly used in logical bus - Ethernet - token ring.
Switch
DNS (Domain Name System)
29. Malware attack that sends commands inside of an ICMP packet.
Commonly used in Internet.
OSI Layer 4: Transport Layer
Loki Attack
Proxy Firewall
30. VPN protocol that works at the network layer - handles multiple connections - provides secure authentication and encryption. Tunnel mode option (payload and header encrypted) - or transport mode (only payload is encrypted).
IPSec
Classless inter-domain routing (CIDR)
Bus Topology
Challenge Handshake Authentication Protocol (CHAP)
31. Protocol that translates a MAC address into an IP address.
Reverse Address Resolution Protocol (RARP )
Asynchronous Communication
DNS (Domain Name System)
Isochronous Communication Processes
32. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
Frame Relay
Multi-protocol Label Switching
SOCKS Firewall
X.25
33. 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.
Asynchronous Communication
Token Passing
Virtual Private Network (VPN)
Synchronous Optical Networks (SONETS)
34. 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)
Commonly used in Internet.
Screened Sub-Net
35. Protocol that translates IP address into a MAC address (physical Ethernet address)
ARP (Address Resolution Protocol)
Dual-Homed Firewall
OSI Data encapsulation
Asynchronous Transfer Mode (ATM)
36. 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.
Source Routing
Extensible Authentication Protocol (EAP)
OSI Data encapsulation
Virtual Private Network (VPN)
37. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.
Iterated Association
OSI Layer 2: Data Link Layer
10baseT
Asynchronous Communication
38. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Shared Key Authentication (SKA)
Multilevel Switching
Port Numbers
Private Branch Exchange (PBX)
39. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Dynamic Packet Filtering
Ring Topology
Multilevel Switching
Attenuation
40. Type of firewall that lies between the perimeter router and and LAN.
Password Authentication Protocol (PAP)
OSI Data encapsulation
Frequency Hopping Spread Spectrum (FHSS)
Screened Host Firewall
41. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
802.15
Ethernet (802.3)
Switched Virtual Circuit (SVC)
Open Relay
42. Dynamically builds ACL's to allow internal systems to communicate with external systems. Once the connection is finished - the ACL is removed from the list. 4th generation firewall.
SOCKS Firewall
Frame Relay
Repeaters
Dynamic Packet Filtering
43. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Plenum-rated Cables
Iterated Association
Bastion Host
Frame Relay
44. 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.
Circuit Switching
Commonly used in Ethernet.
Star Topology
Asynchronous Transfer Mode (ATM)
45. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
Asynchronous Communication
802.11b
Tree Topology
Committed Information Rate (CIR)
46. 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).
Crosstalk
Multilevel Switching
Commonly used in Ethernet.
Frame Relay
47. Both directions - only one application can send information at a time
Multistation Access Unit (MAU)
Distributed Environment Challenge
Bus Topology
Half-Duplex
48. This is a standard for fiber-optic cabling and uses self-healing network rings. This standard describes the interfaces that can be used over fiber lines and the signaling that can be employed. Works at the physical layer of the OSI model.
Asynchronous Communication
10baseT
UDP
Synchronous Optical Networks (SONETS)
49. In a token ring network - each computer is connected to this - which acts as a central hub.
OSI Layer 4: Transport Layer
Synchronous Data Link Control (SDLC)
Multistation Access Unit (MAU)
802.11b
50. 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.
FDDI-2
Password Authentication Protocol (PAP)
802.16
OSI Layer 1: Physical