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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. 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
Password Authentication Protocol (PAP)
802.16
Multistation Access Unit (MAU)
2. Type of topology where computers all are connected to each other - which provides redundancy.
Metropolitan Area Network (MAN)
Network Address Translator (NAT)
Packet Switching
Commonly used in Internet.
3. OSI layer that prepares data for the network medium by framing it into LAN/WAN frames. Defines how the physical layer transmits the network packets. Protocols at this layer ARP (Address Resolution Protocol) - RARP (Reverse Address Resolution Protocol
Metropolitan Area Network (MAN)
Noise
Commonly used in Internet.
OSI Layer 2: Data Link Layer
4. 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.
Dedicated Links
Point-To-Point Tunneling Protocol (PPTP)
Channel Service Unit/Data Service Unit (CSU/DSU)
Simplex: One direction.
5. 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
Bastion Host
Twisted Pair Cables
6. Both directions - only one application can send information at a time
ThickNet - aka 10base5.
Screened Sub-Net
Half-Duplex
OSI Data encapsulation
7. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
Application Proxy Firewall
Digital Subscriber Line (DSL)
T1
Asynchronous Transfer Mode (ATM)
8. 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.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
TCP
LLC (Logical Link Control - 802.2)
Isochronous Communication Processes
9. Protocol that translates a MAC address into an IP address.
Trunk Lines
Reverse Address Resolution Protocol (RARP )
FDDI-2
Classless inter-domain routing (CIDR)
10. 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.
Proxy Firewall
Frame Relay
Commonly used in logical bus - Ethernet - token ring.
Frame Relay
11. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
Open System Authentication (OSA)
Coaxial Cables
Private Branch Exchange (PBX)
Definition of Protocol
12. 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.
Private Branch Exchange (PBX)
Synchronous Communication
Commonly used in logical bus - Ethernet - token ring.
Source Routing
13. Malware attack that sends commands inside of an ICMP packet.
Proxy Firewall Strengths
OSI Data encapsulation
Loki Attack
Bridge
14. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Blue Boxing
Classless inter-domain routing (CIDR)
Wide Area Network (WAN)
Asynchronous Communication
15. 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.
Point-To-Point Tunneling Protocol (PPTP)
Circuit Level Proxy Firewall
DOS attacks from flooding
Star Topology
16. 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)
Serial Line Internet Protocol (SLIP)
OSI Layer 4: Transport Layer
DOS attacks from flooding
17. Type of network layout that separates and group computers logically.
Service Set ID (SSID)
Carrier sense multiple access with collision detection (CSMA/CD)
Star Topology
VLAN
18. 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.
ThinNet - aka 10base2
IPv6
OSI Layer 6: Presentation
Commonly used in Ethernet.
19. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Commonly used in logical bus - Ethernet - token ring.
ThinNet - aka 10base2
Application Proxy vs. Circuit Level
Synchronous Data Link Control (SDLC)
20. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
802.16
Session Initiation Protocol (SIP)
Serial Line Internet Protocol (SLIP)
DOS attacks from flooding
21. 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.
Synchronous Optical Networks (SONETS)
Tree Topology
Fiber Distributed Data Interface (FDDI)
ARP Poisoning
22. Both directions - both applications can send information at a time. Session Layer Communication Modes
Full-Duplex
OSI Layer 3: Network Layer
Bluejacking
Point-To-Point Tunneling Protocol (PPTP)
23. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
Challenge Handshake Authentication Protocol (CHAP)
Synchronous Data Link Control (SDLC)
T3
TCP
24. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Blue Boxing
CBC-MAC Protocol (CCMP)
Remote Access Servers
Point-To-Point (PPP)
25. 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
802.16
Iterated Association
Switch
26. 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.
Dynamic Packet Filtering
OSI Layer 7: Application
Half-Duplex
DOS attacks from flooding
27. 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.
Asynchronous Communication
Screened Host Firewall
Trunk Lines
Distributed Environment Challenge
28. Type of switch that uses tags that are assigned to each destination network. The network compares the tag with its tag information base - appends the appropriate tag - and forwards to the next switch. This increases the transmission speed - allows la
IPSec
Multi-protocol Label Switching
Serial Line Internet Protocol (SLIP)
Synchronous Communication
29. Protocol where all computers compete for the shard network cable - listen to learn when they can transmit data - susceptible to data collisions. Used by Ethernet.
Private Branch Exchange (PBX)
Token Ring (802.5)
Mesh Topology
Carrier sense multiple access with collision detection (CSMA/CD)
30. This network technology determines which system will send data based on which one has the token.
Point-To-Point (PPP)
OSI Layer 2: Data Link Layer
Token Passing
Packet Filtering Firewall
31. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
ThickNet - aka 10base5.
Definition of Protocol
OSI Layer 7: Application
OSI Layer 3: Network Layer
32. 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
X.25
Plenum-rated Cables
Application Proxy Firewall
33. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
Carrier sense multiple access with collision detection (CSMA/CD)
SOCKS Firewall
Multistation Access Unit (MAU)
Commonly used in FDDI.
34. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Frequency Hopping Spread Spectrum (FHSS)
Permanent Virtual Circuit (PVC)
Subnetting
Layers in the TCP/IP Model
35. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
ARP (Address Resolution Protocol)
Kernel Proxy Firewall
Open System Authentication (OSA)
Coaxial Cables
36. 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)
OSI Layer 2: Data Link Layer
Definition of Protocol
37. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Multistation Access Unit (MAU)
Bluejacking
Wide Area Network (WAN)
Shared Key Authentication (SKA)
38. Protocol for allowing multi-cast (one to many) communication
Iterated Association
IGMP
OSI Layer 3: Network Layer
Twisted Pair Cables
39. 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.
Repeaters
Trunk Lines
Permanent Virtual Circuit (PVC)
802.11b
40. Standard that addresses wireless MAN technologies.
802.16
OSI Layer 1: Physical
Remote Access Servers
802.15
41. 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.
802.11i
Asynchronous Transfer Mode (ATM)
Bridge
Layer 2 Tunneling Protocol (L2TP)
42. Type of cabling problem signals from one wire crossing over to another wire.
Classless inter-domain routing (CIDR)
Serial Line Internet Protocol (SLIP)
802.11
Crosstalk
43. New variant to traditional email spam on VoIP networks.
T3
Spam over Internet Telephony (SPIT)
Multilevel Switching
Tree Topology
44. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Committed Information Rate (CIR)
Dedicated Links
802.11a
Circuit Switching
45. 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).
Reverse Address Resolution Protocol (RARP )
IPSec
Application Proxy Firewall
Point-To-Point (PPP)
46. 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)
Packet Switching
Twisted Pair Cables
CBC-MAC Protocol (CCMP)
47. 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).
Layers in the TCP/IP Model
Synchronous Communication
Asynchronous Communication
Channel Service Unit/Data Service Unit (CSU/DSU)
48. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
Bastion Host
IGMP
Screened Host Firewall
FDDI-2
49. 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 Passing
Token Ring (802.5)
IGMP
802.11
50. Firewall that does not require a proxy for each service; does not provide detailed access control; but does provide for a wider range of protocols.
Application Proxy vs. Circuit Level
10baseT
ThinNet - aka 10base2
Asynchronous Communication